[PATCHv2 00/13] Introduce RK806 Support

[PATCHv2 00/13] Introduce RK806 Support

[Sebastian Reichel]

Hi,

The Rockchip RK3588 Evaluation Boards use SPI connected RK806
PMICs. Downstream this is handled by a new driver, but apart
from being SPI connected this chip is quite similar to the
ther Rockchip PMICs (also RK806 is promoted to also support
I2C). Thus this series instead updates RK808.

Changelog since PATCHv2:
 * https://lore.kernel.org/all/20220831215437.117880-1-sebastian.reichel@collabora.com/
 * Collect Acked-by
 * Avoid if/else checks for regulator id in rk806 regulator driver
 * Fix indentation in DTS example section of the rk806 binding
 * Use absolute path for regulator.yaml referencing in the rk806 binding
 * Reduce pattern for DCDC regulators to only allow 1-10
 * replace uppercase name with lowercase ones in regulator names
 * replace _ with - in regulator names

-- Sebastian

Sebastian Reichel (13):
  mfd: rk808: convert to device managed resources
  mfd: rk808: use dev_err_probe
  clk: RK808: reduce 'struct rk808' usage
  regulator: rk808: reduce 'struct rk808' usage
  rtc: rk808: reduce 'struct rk808' usage
  mfd: rk808: replace 'struct i2c_client' with 'struct device'
  mfd: rk808: split into core and i2c
  dt-bindings: mfd: add rk806 binding
  mfd: rk8xx: add rk806 support
  pinctrl: rk805: add rk806 pinctrl support
  regulator: rk808: Use dev_err_probe
  regulator: rk808: add rk806 support
  ASoC: rk817: Remove 'select REGMAP_I2C'

 .../bindings/mfd/rockchip,rk806.yaml          | 388 +++++++++++++
 drivers/clk/clk-rk808.c                       |  34 +-
 drivers/mfd/Kconfig                           |  19 +
 drivers/mfd/Makefile                          |   4 +-
 drivers/mfd/{rk808.c => rk8xx-core.c}         | 343 ++++--------
 drivers/mfd/rk8xx-i2c.c                       | 205 +++++++
 drivers/mfd/rk8xx-spi.c                       | 128 +++++
 drivers/pinctrl/pinctrl-rk805.c               | 189 ++++++-
 drivers/regulator/rk808-regulator.c           | 508 +++++++++++++++++-
 drivers/rtc/rtc-rk808.c                       |  47 +-
 include/linux/mfd/rk808.h                     | 417 +++++++++++++-
 sound/soc/codecs/Kconfig                      |   1 -
 12 files changed, 1976 insertions(+), 307 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mfd/rockchip,rk806.yaml
 rename drivers/mfd/{rk808.c => rk8xx-core.c} (71%)
 create mode 100644 drivers/mfd/rk8xx-i2c.c
 create mode 100644 drivers/mfd/rk8xx-spi.c

-- 
2.35.1

[PATCHv2 00/13] Introduce RK806 Support

[Sebastian Reichel]

Hi,

The Rockchip RK3588 Evaluation Boards use SPI connected RK806
PMICs. Downstream this is handled by a new driver, but apart
from being SPI connected this chip is quite similar to the
ther Rockchip PMICs (also RK806 is promoted to also support
I2C). Thus this series instead updates RK808.

Changelog since PATCHv2:
 * https://lore.kernel.org/all/20220831215437.117880-1-sebastian.reichel@collabora.com/
 * Collect Acked-by
 * Avoid if/else checks for regulator id in rk806 regulator driver
 * Fix indentation in DTS example section of the rk806 binding
 * Use absolute path for regulator.yaml referencing in the rk806 binding
 * Reduce pattern for DCDC regulators to only allow 1-10
 * replace uppercase name with lowercase ones in regulator names
 * replace _ with - in regulator names

-- Sebastian

Sebastian Reichel (13):
  mfd: rk808: convert to device managed resources
  mfd: rk808: use dev_err_probe
  clk: RK808: reduce 'struct rk808' usage
  regulator: rk808: reduce 'struct rk808' usage
  rtc: rk808: reduce 'struct rk808' usage
  mfd: rk808: replace 'struct i2c_client' with 'struct device'
  mfd: rk808: split into core and i2c
  dt-bindings: mfd: add rk806 binding
  mfd: rk8xx: add rk806 support
  pinctrl: rk805: add rk806 pinctrl support
  regulator: rk808: Use dev_err_probe
  regulator: rk808: add rk806 support
  ASoC: rk817: Remove 'select REGMAP_I2C'

 .../bindings/mfd/rockchip,rk806.yaml          | 388 +++++++++++++
 drivers/clk/clk-rk808.c                       |  34 +-
 drivers/mfd/Kconfig                           |  19 +
 drivers/mfd/Makefile                          |   4 +-
 drivers/mfd/{rk808.c => rk8xx-core.c}         | 343 ++++--------
 drivers/mfd/rk8xx-i2c.c                       | 205 +++++++
 drivers/mfd/rk8xx-spi.c                       | 128 +++++
 drivers/pinctrl/pinctrl-rk805.c               | 189 ++++++-
 drivers/regulator/rk808-regulator.c           | 508 +++++++++++++++++-
 drivers/rtc/rtc-rk808.c                       |  47 +-
 include/linux/mfd/rk808.h                     | 417 +++++++++++++-
 sound/soc/codecs/Kconfig                      |   1 -
 12 files changed, 1976 insertions(+), 307 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mfd/rockchip,rk806.yaml
 rename drivers/mfd/{rk808.c => rk8xx-core.c} (71%)
 create mode 100644 drivers/mfd/rk8xx-i2c.c
 create mode 100644 drivers/mfd/rk8xx-spi.c

-- 
2.35.1


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Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

[PATCHv2 01/13] mfd: rk808: convert to device managed resources

[Sebastian Reichel]

Fully convert the driver to device managed resources.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/mfd/rk808.c | 66 +++++++++++++++------------------------------
 1 file changed, 22 insertions(+), 44 deletions(-)

diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
index 4142b638e5fa..c17fea1d48ca 100644
--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk808.c
@@ -527,13 +527,11 @@ static const struct regmap_irq_chip rk818_irq_chip = {
 	.init_ack_masked = true,
 };
 
-static struct i2c_client *rk808_i2c_client;
-
-static void rk808_pm_power_off(void)
+static int rk808_power_off(struct sys_off_data *data)
 {
+	struct rk808 *rk808 = data->cb_data;
 	int ret;
 	unsigned int reg, bit;
-	struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
 
 	switch (rk808->variant) {
 	case RK805_ID:
@@ -554,16 +552,18 @@ static void rk808_pm_power_off(void)
 		bit = DEV_OFF;
 		break;
 	default:
-		return;
+		return NOTIFY_DONE;
 	}
 	ret = regmap_update_bits(rk808->regmap, reg, bit, bit);
 	if (ret)
-		dev_err(&rk808_i2c_client->dev, "Failed to shutdown device!\n");
+		dev_err(&rk808->i2c->dev, "Failed to shutdown device!\n");
+
+	return NOTIFY_DONE;
 }
 
-static int rk808_restart_notify(struct notifier_block *this, unsigned long mode, void *cmd)
+static int rk808_restart(struct sys_off_data *data)
 {
-	struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
+	struct rk808 *rk808 = data->cb_data;
 	unsigned int reg, bit;
 	int ret;
 
@@ -579,16 +579,11 @@ static int rk808_restart_notify(struct notifier_block *this, unsigned long mode,
 	}
 	ret = regmap_update_bits(rk808->regmap, reg, bit, bit);
 	if (ret)
-		dev_err(&rk808_i2c_client->dev, "Failed to restart device!\n");
+		dev_err(&rk808->i2c->dev, "Failed to restart device!\n");
 
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block rk808_restart_handler = {
-	.notifier_call = rk808_restart_notify,
-	.priority = 192,
-};
-
 static void rk8xx_shutdown(struct i2c_client *client)
 {
 	struct rk808 *rk808 = i2c_get_clientdata(client);
@@ -725,9 +720,9 @@ static int rk808_probe(struct i2c_client *client,
 		return -EINVAL;
 	}
 
-	ret = regmap_add_irq_chip(rk808->regmap, client->irq,
-				  IRQF_ONESHOT, -1,
-				  rk808->regmap_irq_chip, &rk808->irq_data);
+	ret = devm_regmap_add_irq_chip(&client->dev, rk808->regmap, client->irq,
+				       IRQF_ONESHOT, -1,
+				       rk808->regmap_irq_chip, &rk808->irq_data);
 	if (ret) {
 		dev_err(&client->dev, "Failed to add irq_chip %d\n", ret);
 		return ret;
@@ -751,17 +746,23 @@ static int rk808_probe(struct i2c_client *client,
 			      regmap_irq_get_domain(rk808->irq_data));
 	if (ret) {
 		dev_err(&client->dev, "failed to add MFD devices %d\n", ret);
-		goto err_irq;
+		return ret;
 	}
 
 	if (of_property_read_bool(np, "rockchip,system-power-controller")) {
-		rk808_i2c_client = client;
-		pm_power_off = rk808_pm_power_off;
+		ret = devm_register_sys_off_handler(&client->dev,
+				    SYS_OFF_MODE_POWER_OFF_PREPARE, SYS_OFF_PRIO_HIGH,
+				    &rk808_power_off, rk808);
+		if (ret)
+			return dev_err_probe(&client->dev, ret,
+					     "failed to register poweroff handler\n");
 
 		switch (rk808->variant) {
 		case RK809_ID:
 		case RK817_ID:
-			ret = register_restart_handler(&rk808_restart_handler);
+			ret = devm_register_sys_off_handler(&client->dev,
+							    SYS_OFF_MODE_RESTART, SYS_OFF_PRIO_HIGH,
+							    &rk808_restart, rk808);
 			if (ret)
 				dev_warn(&client->dev, "failed to register rst handler, %d\n", ret);
 			break;
@@ -771,28 +772,6 @@ static int rk808_probe(struct i2c_client *client,
 		}
 	}
 
-	return 0;
-
-err_irq:
-	regmap_del_irq_chip(client->irq, rk808->irq_data);
-	return ret;
-}
-
-static int rk808_remove(struct i2c_client *client)
-{
-	struct rk808 *rk808 = i2c_get_clientdata(client);
-
-	regmap_del_irq_chip(client->irq, rk808->irq_data);
-
-	/**
-	 * pm_power_off may points to a function from another module.
-	 * Check if the pointer is set by us and only then overwrite it.
-	 */
-	if (pm_power_off == rk808_pm_power_off)
-		pm_power_off = NULL;
-
-	unregister_restart_handler(&rk808_restart_handler);
-
 	return 0;
 }
 
@@ -850,7 +829,6 @@ static struct i2c_driver rk808_i2c_driver = {
 		.pm = &rk8xx_pm_ops,
 	},
 	.probe    = rk808_probe,
-	.remove   = rk808_remove,
 	.shutdown = rk8xx_shutdown,
 };
 
-- 
2.35.1

[PATCHv2 01/13] mfd: rk808: convert to device managed resources

[Sebastian Reichel]

Fully convert the driver to device managed resources.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/mfd/rk808.c | 66 +++++++++++++++------------------------------
 1 file changed, 22 insertions(+), 44 deletions(-)

diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
index 4142b638e5fa..c17fea1d48ca 100644
--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk808.c
@@ -527,13 +527,11 @@ static const struct regmap_irq_chip rk818_irq_chip = {
 	.init_ack_masked = true,
 };
 
-static struct i2c_client *rk808_i2c_client;
-
-static void rk808_pm_power_off(void)
+static int rk808_power_off(struct sys_off_data *data)
 {
+	struct rk808 *rk808 = data->cb_data;
 	int ret;
 	unsigned int reg, bit;
-	struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
 
 	switch (rk808->variant) {
 	case RK805_ID:
@@ -554,16 +552,18 @@ static void rk808_pm_power_off(void)
 		bit = DEV_OFF;
 		break;
 	default:
-		return;
+		return NOTIFY_DONE;
 	}
 	ret = regmap_update_bits(rk808->regmap, reg, bit, bit);
 	if (ret)
-		dev_err(&rk808_i2c_client->dev, "Failed to shutdown device!\n");
+		dev_err(&rk808->i2c->dev, "Failed to shutdown device!\n");
+
+	return NOTIFY_DONE;
 }
 
-static int rk808_restart_notify(struct notifier_block *this, unsigned long mode, void *cmd)
+static int rk808_restart(struct sys_off_data *data)
 {
-	struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
+	struct rk808 *rk808 = data->cb_data;
 	unsigned int reg, bit;
 	int ret;
 
@@ -579,16 +579,11 @@ static int rk808_restart_notify(struct notifier_block *this, unsigned long mode,
 	}
 	ret = regmap_update_bits(rk808->regmap, reg, bit, bit);
 	if (ret)
-		dev_err(&rk808_i2c_client->dev, "Failed to restart device!\n");
+		dev_err(&rk808->i2c->dev, "Failed to restart device!\n");
 
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block rk808_restart_handler = {
-	.notifier_call = rk808_restart_notify,
-	.priority = 192,
-};
-
 static void rk8xx_shutdown(struct i2c_client *client)
 {
 	struct rk808 *rk808 = i2c_get_clientdata(client);
@@ -725,9 +720,9 @@ static int rk808_probe(struct i2c_client *client,
 		return -EINVAL;
 	}
 
-	ret = regmap_add_irq_chip(rk808->regmap, client->irq,
-				  IRQF_ONESHOT, -1,
-				  rk808->regmap_irq_chip, &rk808->irq_data);
+	ret = devm_regmap_add_irq_chip(&client->dev, rk808->regmap, client->irq,
+				       IRQF_ONESHOT, -1,
+				       rk808->regmap_irq_chip, &rk808->irq_data);
 	if (ret) {
 		dev_err(&client->dev, "Failed to add irq_chip %d\n", ret);
 		return ret;
@@ -751,17 +746,23 @@ static int rk808_probe(struct i2c_client *client,
 			      regmap_irq_get_domain(rk808->irq_data));
 	if (ret) {
 		dev_err(&client->dev, "failed to add MFD devices %d\n", ret);
-		goto err_irq;
+		return ret;
 	}
 
 	if (of_property_read_bool(np, "rockchip,system-power-controller")) {
-		rk808_i2c_client = client;
-		pm_power_off = rk808_pm_power_off;
+		ret = devm_register_sys_off_handler(&client->dev,
+				    SYS_OFF_MODE_POWER_OFF_PREPARE, SYS_OFF_PRIO_HIGH,
+				    &rk808_power_off, rk808);
+		if (ret)
+			return dev_err_probe(&client->dev, ret,
+					     "failed to register poweroff handler\n");
 
 		switch (rk808->variant) {
 		case RK809_ID:
 		case RK817_ID:
-			ret = register_restart_handler(&rk808_restart_handler);
+			ret = devm_register_sys_off_handler(&client->dev,
+							    SYS_OFF_MODE_RESTART, SYS_OFF_PRIO_HIGH,
+							    &rk808_restart, rk808);
 			if (ret)
 				dev_warn(&client->dev, "failed to register rst handler, %d\n", ret);
 			break;
@@ -771,28 +772,6 @@ static int rk808_probe(struct i2c_client *client,
 		}
 	}
 
-	return 0;
-
-err_irq:
-	regmap_del_irq_chip(client->irq, rk808->irq_data);
-	return ret;
-}
-
-static int rk808_remove(struct i2c_client *client)
-{
-	struct rk808 *rk808 = i2c_get_clientdata(client);
-
-	regmap_del_irq_chip(client->irq, rk808->irq_data);
-
-	/**
-	 * pm_power_off may points to a function from another module.
-	 * Check if the pointer is set by us and only then overwrite it.
-	 */
-	if (pm_power_off == rk808_pm_power_off)
-		pm_power_off = NULL;
-
-	unregister_restart_handler(&rk808_restart_handler);
-
 	return 0;
 }
 
@@ -850,7 +829,6 @@ static struct i2c_driver rk808_i2c_driver = {
 		.pm = &rk8xx_pm_ops,
 	},
 	.probe    = rk808_probe,
-	.remove   = rk808_remove,
 	.shutdown = rk8xx_shutdown,
 };
 
-- 
2.35.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

[PATCHv2 02/13] mfd: rk808: use dev_err_probe

[Sebastian Reichel]

Use dev_err_probe instead of dev_err in probe function,
which simplifies code a little bit and prints the error
code.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/mfd/rk808.c | 50 ++++++++++++++++-----------------------------
 1 file changed, 18 insertions(+), 32 deletions(-)

diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
index c17fea1d48ca..e793de9146f7 100644
--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk808.c
@@ -650,18 +650,14 @@ static int rk808_probe(struct i2c_client *client,
 
 	/* Read chip variant */
 	msb = i2c_smbus_read_byte_data(client, pmic_id_msb);
-	if (msb < 0) {
-		dev_err(&client->dev, "failed to read the chip id at 0x%x\n",
-			RK808_ID_MSB);
-		return msb;
-	}
+	if (msb < 0)
+		return dev_err_probe(&client->dev, msb, "failed to read the chip id at 0x%x\n",
+				     RK808_ID_MSB);
 
 	lsb = i2c_smbus_read_byte_data(client, pmic_id_lsb);
-	if (lsb < 0) {
-		dev_err(&client->dev, "failed to read the chip id at 0x%x\n",
-			RK808_ID_LSB);
-		return lsb;
-	}
+	if (lsb < 0)
+		return dev_err_probe(&client->dev, lsb, "failed to read the chip id at 0x%x\n",
+				     RK808_ID_LSB);
 
 	rk808->variant = ((msb << 8) | lsb) & RK8XX_ID_MSK;
 	dev_info(&client->dev, "chip id: 0x%x\n", (unsigned int)rk808->variant);
@@ -710,44 +706,34 @@ static int rk808_probe(struct i2c_client *client,
 	i2c_set_clientdata(client, rk808);
 
 	rk808->regmap = devm_regmap_init_i2c(client, rk808->regmap_cfg);
-	if (IS_ERR(rk808->regmap)) {
-		dev_err(&client->dev, "regmap initialization failed\n");
-		return PTR_ERR(rk808->regmap);
-	}
+	if (IS_ERR(rk808->regmap))
+		return dev_err_probe(&client->dev, PTR_ERR(rk808->regmap),
+				     "regmap initialization failed\n");
 
-	if (!client->irq) {
-		dev_err(&client->dev, "No interrupt support, no core IRQ\n");
-		return -EINVAL;
-	}
+	if (!client->irq)
+		return dev_err_probe(&client->dev, -EINVAL, "No interrupt support, no core IRQ\n");
 
 	ret = devm_regmap_add_irq_chip(&client->dev, rk808->regmap, client->irq,
 				       IRQF_ONESHOT, -1,
 				       rk808->regmap_irq_chip, &rk808->irq_data);
-	if (ret) {
-		dev_err(&client->dev, "Failed to add irq_chip %d\n", ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(&client->dev, ret, "Failed to add irq_chip\n");
 
 	for (i = 0; i < nr_pre_init_regs; i++) {
 		ret = regmap_update_bits(rk808->regmap,
 					pre_init_reg[i].addr,
 					pre_init_reg[i].mask,
 					pre_init_reg[i].value);
-		if (ret) {
-			dev_err(&client->dev,
-				"0x%x write err\n",
-				pre_init_reg[i].addr);
-			return ret;
-		}
+		if (ret)
+			return dev_err_probe(&client->dev, ret, "0x%x write err\n",
+					     pre_init_reg[i].addr);
 	}
 
 	ret = devm_mfd_add_devices(&client->dev, PLATFORM_DEVID_NONE,
 			      cells, nr_cells, NULL, 0,
 			      regmap_irq_get_domain(rk808->irq_data));
-	if (ret) {
-		dev_err(&client->dev, "failed to add MFD devices %d\n", ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(&client->dev, ret, "failed to add MFD devices\n");
 
 	if (of_property_read_bool(np, "rockchip,system-power-controller")) {
 		ret = devm_register_sys_off_handler(&client->dev,
-- 
2.35.1

[PATCHv2 02/13] mfd: rk808: use dev_err_probe

[Sebastian Reichel]

Use dev_err_probe instead of dev_err in probe function,
which simplifies code a little bit and prints the error
code.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/mfd/rk808.c | 50 ++++++++++++++++-----------------------------
 1 file changed, 18 insertions(+), 32 deletions(-)

diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
index c17fea1d48ca..e793de9146f7 100644
--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk808.c
@@ -650,18 +650,14 @@ static int rk808_probe(struct i2c_client *client,
 
 	/* Read chip variant */
 	msb = i2c_smbus_read_byte_data(client, pmic_id_msb);
-	if (msb < 0) {
-		dev_err(&client->dev, "failed to read the chip id at 0x%x\n",
-			RK808_ID_MSB);
-		return msb;
-	}
+	if (msb < 0)
+		return dev_err_probe(&client->dev, msb, "failed to read the chip id at 0x%x\n",
+				     RK808_ID_MSB);
 
 	lsb = i2c_smbus_read_byte_data(client, pmic_id_lsb);
-	if (lsb < 0) {
-		dev_err(&client->dev, "failed to read the chip id at 0x%x\n",
-			RK808_ID_LSB);
-		return lsb;
-	}
+	if (lsb < 0)
+		return dev_err_probe(&client->dev, lsb, "failed to read the chip id at 0x%x\n",
+				     RK808_ID_LSB);
 
 	rk808->variant = ((msb << 8) | lsb) & RK8XX_ID_MSK;
 	dev_info(&client->dev, "chip id: 0x%x\n", (unsigned int)rk808->variant);
@@ -710,44 +706,34 @@ static int rk808_probe(struct i2c_client *client,
 	i2c_set_clientdata(client, rk808);
 
 	rk808->regmap = devm_regmap_init_i2c(client, rk808->regmap_cfg);
-	if (IS_ERR(rk808->regmap)) {
-		dev_err(&client->dev, "regmap initialization failed\n");
-		return PTR_ERR(rk808->regmap);
-	}
+	if (IS_ERR(rk808->regmap))
+		return dev_err_probe(&client->dev, PTR_ERR(rk808->regmap),
+				     "regmap initialization failed\n");
 
-	if (!client->irq) {
-		dev_err(&client->dev, "No interrupt support, no core IRQ\n");
-		return -EINVAL;
-	}
+	if (!client->irq)
+		return dev_err_probe(&client->dev, -EINVAL, "No interrupt support, no core IRQ\n");
 
 	ret = devm_regmap_add_irq_chip(&client->dev, rk808->regmap, client->irq,
 				       IRQF_ONESHOT, -1,
 				       rk808->regmap_irq_chip, &rk808->irq_data);
-	if (ret) {
-		dev_err(&client->dev, "Failed to add irq_chip %d\n", ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(&client->dev, ret, "Failed to add irq_chip\n");
 
 	for (i = 0; i < nr_pre_init_regs; i++) {
 		ret = regmap_update_bits(rk808->regmap,
 					pre_init_reg[i].addr,
 					pre_init_reg[i].mask,
 					pre_init_reg[i].value);
-		if (ret) {
-			dev_err(&client->dev,
-				"0x%x write err\n",
-				pre_init_reg[i].addr);
-			return ret;
-		}
+		if (ret)
+			return dev_err_probe(&client->dev, ret, "0x%x write err\n",
+					     pre_init_reg[i].addr);
 	}
 
 	ret = devm_mfd_add_devices(&client->dev, PLATFORM_DEVID_NONE,
 			      cells, nr_cells, NULL, 0,
 			      regmap_irq_get_domain(rk808->irq_data));
-	if (ret) {
-		dev_err(&client->dev, "failed to add MFD devices %d\n", ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(&client->dev, ret, "failed to add MFD devices\n");
 
 	if (of_property_read_bool(np, "rockchip,system-power-controller")) {
 		ret = devm_register_sys_off_handler(&client->dev,
-- 
2.35.1


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Re: [PATCHv2 02/13] mfd: rk808: use dev_err_probe

[Robin Murphy]

On 2022-09-08 01:30, Sebastian Reichel wrote:
> Use dev_err_probe instead of dev_err in probe function,
> which simplifies code a little bit and prints the error
> code.
> 
> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
> ---
>   drivers/mfd/rk808.c | 50 ++++++++++++++++-----------------------------
>   1 file changed, 18 insertions(+), 32 deletions(-)
> 
> diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
> index c17fea1d48ca..e793de9146f7 100644
> --- a/drivers/mfd/rk808.c
> +++ b/drivers/mfd/rk808.c
> @@ -650,18 +650,14 @@ static int rk808_probe(struct i2c_client *client,
>   
>   	/* Read chip variant */
>   	msb = i2c_smbus_read_byte_data(client, pmic_id_msb);
> -	if (msb < 0) {
> -		dev_err(&client->dev, "failed to read the chip id at 0x%x\n",
> -			RK808_ID_MSB);
> -		return msb;
> -	}
> +	if (msb < 0)
> +		return dev_err_probe(&client->dev, msb, "failed to read the chip id at 0x%x\n",
> +				     RK808_ID_MSB);
>   
>   	lsb = i2c_smbus_read_byte_data(client, pmic_id_lsb);
> -	if (lsb < 0) {
> -		dev_err(&client->dev, "failed to read the chip id at 0x%x\n",
> -			RK808_ID_LSB);
> -		return lsb;
> -	}
> +	if (lsb < 0)
> +		return dev_err_probe(&client->dev, lsb, "failed to read the chip id at 0x%x\n",
> +				     RK808_ID_LSB);

Hmm, refactoring these is probably a good opportunity to fix them as 
well - I'm not sure printing the register offset is really all that 
useful, but particularly not when it's hard-coded and may not correspond 
to the actual access that failed.

Robin.

>   
>   	rk808->variant = ((msb << 8) | lsb) & RK8XX_ID_MSK;
>   	dev_info(&client->dev, "chip id: 0x%x\n", (unsigned int)rk808->variant);
> @@ -710,44 +706,34 @@ static int rk808_probe(struct i2c_client *client,
>   	i2c_set_clientdata(client, rk808);
>   
>   	rk808->regmap = devm_regmap_init_i2c(client, rk808->regmap_cfg);
> -	if (IS_ERR(rk808->regmap)) {
> -		dev_err(&client->dev, "regmap initialization failed\n");
> -		return PTR_ERR(rk808->regmap);
> -	}
> +	if (IS_ERR(rk808->regmap))
> +		return dev_err_probe(&client->dev, PTR_ERR(rk808->regmap),
> +				     "regmap initialization failed\n");
>   
> -	if (!client->irq) {
> -		dev_err(&client->dev, "No interrupt support, no core IRQ\n");
> -		return -EINVAL;
> -	}
> +	if (!client->irq)
> +		return dev_err_probe(&client->dev, -EINVAL, "No interrupt support, no core IRQ\n");
>   
>   	ret = devm_regmap_add_irq_chip(&client->dev, rk808->regmap, client->irq,
>   				       IRQF_ONESHOT, -1,
>   				       rk808->regmap_irq_chip, &rk808->irq_data);
> -	if (ret) {
> -		dev_err(&client->dev, "Failed to add irq_chip %d\n", ret);
> -		return ret;
> -	}
> +	if (ret)
> +		return dev_err_probe(&client->dev, ret, "Failed to add irq_chip\n");
>   
>   	for (i = 0; i < nr_pre_init_regs; i++) {
>   		ret = regmap_update_bits(rk808->regmap,
>   					pre_init_reg[i].addr,
>   					pre_init_reg[i].mask,
>   					pre_init_reg[i].value);
> -		if (ret) {
> -			dev_err(&client->dev,
> -				"0x%x write err\n",
> -				pre_init_reg[i].addr);
> -			return ret;
> -		}
> +		if (ret)
> +			return dev_err_probe(&client->dev, ret, "0x%x write err\n",
> +					     pre_init_reg[i].addr);
>   	}
>   
>   	ret = devm_mfd_add_devices(&client->dev, PLATFORM_DEVID_NONE,
>   			      cells, nr_cells, NULL, 0,
>   			      regmap_irq_get_domain(rk808->irq_data));
> -	if (ret) {
> -		dev_err(&client->dev, "failed to add MFD devices %d\n", ret);
> -		return ret;
> -	}
> +	if (ret)
> +		return dev_err_probe(&client->dev, ret, "failed to add MFD devices\n");
>   
>   	if (of_property_read_bool(np, "rockchip,system-power-controller")) {
>   		ret = devm_register_sys_off_handler(&client->dev,

Re: [PATCHv2 02/13] mfd: rk808: use dev_err_probe

[Robin Murphy]

On 2022-09-08 01:30, Sebastian Reichel wrote:
> Use dev_err_probe instead of dev_err in probe function,
> which simplifies code a little bit and prints the error
> code.
> 
> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
> ---
>   drivers/mfd/rk808.c | 50 ++++++++++++++++-----------------------------
>   1 file changed, 18 insertions(+), 32 deletions(-)
> 
> diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
> index c17fea1d48ca..e793de9146f7 100644
> --- a/drivers/mfd/rk808.c
> +++ b/drivers/mfd/rk808.c
> @@ -650,18 +650,14 @@ static int rk808_probe(struct i2c_client *client,
>   
>   	/* Read chip variant */
>   	msb = i2c_smbus_read_byte_data(client, pmic_id_msb);
> -	if (msb < 0) {
> -		dev_err(&client->dev, "failed to read the chip id at 0x%x\n",
> -			RK808_ID_MSB);
> -		return msb;
> -	}
> +	if (msb < 0)
> +		return dev_err_probe(&client->dev, msb, "failed to read the chip id at 0x%x\n",
> +				     RK808_ID_MSB);
>   
>   	lsb = i2c_smbus_read_byte_data(client, pmic_id_lsb);
> -	if (lsb < 0) {
> -		dev_err(&client->dev, "failed to read the chip id at 0x%x\n",
> -			RK808_ID_LSB);
> -		return lsb;
> -	}
> +	if (lsb < 0)
> +		return dev_err_probe(&client->dev, lsb, "failed to read the chip id at 0x%x\n",
> +				     RK808_ID_LSB);

Hmm, refactoring these is probably a good opportunity to fix them as 
well - I'm not sure printing the register offset is really all that 
useful, but particularly not when it's hard-coded and may not correspond 
to the actual access that failed.

Robin.

>   
>   	rk808->variant = ((msb << 8) | lsb) & RK8XX_ID_MSK;
>   	dev_info(&client->dev, "chip id: 0x%x\n", (unsigned int)rk808->variant);
> @@ -710,44 +706,34 @@ static int rk808_probe(struct i2c_client *client,
>   	i2c_set_clientdata(client, rk808);
>   
>   	rk808->regmap = devm_regmap_init_i2c(client, rk808->regmap_cfg);
> -	if (IS_ERR(rk808->regmap)) {
> -		dev_err(&client->dev, "regmap initialization failed\n");
> -		return PTR_ERR(rk808->regmap);
> -	}
> +	if (IS_ERR(rk808->regmap))
> +		return dev_err_probe(&client->dev, PTR_ERR(rk808->regmap),
> +				     "regmap initialization failed\n");
>   
> -	if (!client->irq) {
> -		dev_err(&client->dev, "No interrupt support, no core IRQ\n");
> -		return -EINVAL;
> -	}
> +	if (!client->irq)
> +		return dev_err_probe(&client->dev, -EINVAL, "No interrupt support, no core IRQ\n");
>   
>   	ret = devm_regmap_add_irq_chip(&client->dev, rk808->regmap, client->irq,
>   				       IRQF_ONESHOT, -1,
>   				       rk808->regmap_irq_chip, &rk808->irq_data);
> -	if (ret) {
> -		dev_err(&client->dev, "Failed to add irq_chip %d\n", ret);
> -		return ret;
> -	}
> +	if (ret)
> +		return dev_err_probe(&client->dev, ret, "Failed to add irq_chip\n");
>   
>   	for (i = 0; i < nr_pre_init_regs; i++) {
>   		ret = regmap_update_bits(rk808->regmap,
>   					pre_init_reg[i].addr,
>   					pre_init_reg[i].mask,
>   					pre_init_reg[i].value);
> -		if (ret) {
> -			dev_err(&client->dev,
> -				"0x%x write err\n",
> -				pre_init_reg[i].addr);
> -			return ret;
> -		}
> +		if (ret)
> +			return dev_err_probe(&client->dev, ret, "0x%x write err\n",
> +					     pre_init_reg[i].addr);
>   	}
>   
>   	ret = devm_mfd_add_devices(&client->dev, PLATFORM_DEVID_NONE,
>   			      cells, nr_cells, NULL, 0,
>   			      regmap_irq_get_domain(rk808->irq_data));
> -	if (ret) {
> -		dev_err(&client->dev, "failed to add MFD devices %d\n", ret);
> -		return ret;
> -	}
> +	if (ret)
> +		return dev_err_probe(&client->dev, ret, "failed to add MFD devices\n");
>   
>   	if (of_property_read_bool(np, "rockchip,system-power-controller")) {
>   		ret = devm_register_sys_off_handler(&client->dev,

_______________________________________________
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http://lists.infradead.org/mailman/listinfo/linux-rockchip

[PATCHv2 03/13] clk: RK808: reduce 'struct rk808' usage

[Sebastian Reichel]

Reduce usage of 'struct rk808' (driver data of the parent MFD), so
that only the chip variant field is still being accessed directly.
This allows restructuring the MFD driver to support SPI based
PMICs.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/clk/clk-rk808.c | 34 ++++++++++++++++------------------
 1 file changed, 16 insertions(+), 18 deletions(-)

diff --git a/drivers/clk/clk-rk808.c b/drivers/clk/clk-rk808.c
index 32f833d732ed..f7412b137e5e 100644
--- a/drivers/clk/clk-rk808.c
+++ b/drivers/clk/clk-rk808.c
@@ -12,10 +12,9 @@
 #include <linux/slab.h>
 #include <linux/platform_device.h>
 #include <linux/mfd/rk808.h>
-#include <linux/i2c.h>
 
 struct rk808_clkout {
-	struct rk808 *rk808;
+	struct regmap		*regmap;
 	struct clk_hw		clkout1_hw;
 	struct clk_hw		clkout2_hw;
 };
@@ -31,9 +30,8 @@ static int rk808_clkout2_enable(struct clk_hw *hw, bool enable)
 	struct rk808_clkout *rk808_clkout = container_of(hw,
 							 struct rk808_clkout,
 							 clkout2_hw);
-	struct rk808 *rk808 = rk808_clkout->rk808;
 
-	return regmap_update_bits(rk808->regmap, RK808_CLK32OUT_REG,
+	return regmap_update_bits(rk808_clkout->regmap, RK808_CLK32OUT_REG,
 				  CLK32KOUT2_EN, enable ? CLK32KOUT2_EN : 0);
 }
 
@@ -52,10 +50,9 @@ static int rk808_clkout2_is_prepared(struct clk_hw *hw)
 	struct rk808_clkout *rk808_clkout = container_of(hw,
 							 struct rk808_clkout,
 							 clkout2_hw);
-	struct rk808 *rk808 = rk808_clkout->rk808;
 	uint32_t val;
 
-	int ret = regmap_read(rk808->regmap, RK808_CLK32OUT_REG, &val);
+	int ret = regmap_read(rk808_clkout->regmap, RK808_CLK32OUT_REG, &val);
 
 	if (ret < 0)
 		return ret;
@@ -93,9 +90,8 @@ static int rk817_clkout2_enable(struct clk_hw *hw, bool enable)
 	struct rk808_clkout *rk808_clkout = container_of(hw,
 							 struct rk808_clkout,
 							 clkout2_hw);
-	struct rk808 *rk808 = rk808_clkout->rk808;
 
-	return regmap_update_bits(rk808->regmap, RK817_SYS_CFG(1),
+	return regmap_update_bits(rk808_clkout->regmap, RK817_SYS_CFG(1),
 				  RK817_CLK32KOUT2_EN,
 				  enable ? RK817_CLK32KOUT2_EN : 0);
 }
@@ -115,10 +111,9 @@ static int rk817_clkout2_is_prepared(struct clk_hw *hw)
 	struct rk808_clkout *rk808_clkout = container_of(hw,
 							 struct rk808_clkout,
 							 clkout2_hw);
-	struct rk808 *rk808 = rk808_clkout->rk808;
 	unsigned int val;
 
-	int ret = regmap_read(rk808->regmap, RK817_SYS_CFG(1), &val);
+	int ret = regmap_read(rk808_clkout->regmap, RK817_SYS_CFG(1), &val);
 
 	if (ret < 0)
 		return 0;
@@ -153,18 +148,21 @@ static const struct clk_ops *rkpmic_get_ops(long variant)
 static int rk808_clkout_probe(struct platform_device *pdev)
 {
 	struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
-	struct i2c_client *client = rk808->i2c;
-	struct device_node *node = client->dev.of_node;
+	struct device *dev = &pdev->dev;
 	struct clk_init_data init = {};
 	struct rk808_clkout *rk808_clkout;
 	int ret;
 
-	rk808_clkout = devm_kzalloc(&client->dev,
+	dev->of_node = pdev->dev.parent->of_node;
+
+	rk808_clkout = devm_kzalloc(dev,
 				    sizeof(*rk808_clkout), GFP_KERNEL);
 	if (!rk808_clkout)
 		return -ENOMEM;
 
-	rk808_clkout->rk808 = rk808;
+	rk808_clkout->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+	if (!rk808_clkout->regmap)
+		return -ENODEV;
 
 	init.parent_names = NULL;
 	init.num_parents = 0;
@@ -173,10 +171,10 @@ static int rk808_clkout_probe(struct platform_device *pdev)
 	rk808_clkout->clkout1_hw.init = &init;
 
 	/* optional override of the clockname */
-	of_property_read_string_index(node, "clock-output-names",
+	of_property_read_string_index(dev->of_node, "clock-output-names",
 				      0, &init.name);
 
-	ret = devm_clk_hw_register(&client->dev, &rk808_clkout->clkout1_hw);
+	ret = devm_clk_hw_register(dev, &rk808_clkout->clkout1_hw);
 	if (ret)
 		return ret;
 
@@ -185,10 +183,10 @@ static int rk808_clkout_probe(struct platform_device *pdev)
 	rk808_clkout->clkout2_hw.init = &init;
 
 	/* optional override of the clockname */
-	of_property_read_string_index(node, "clock-output-names",
+	of_property_read_string_index(dev->of_node, "clock-output-names",
 				      1, &init.name);
 
-	ret = devm_clk_hw_register(&client->dev, &rk808_clkout->clkout2_hw);
+	ret = devm_clk_hw_register(dev, &rk808_clkout->clkout2_hw);
 	if (ret)
 		return ret;
 
-- 
2.35.1

[PATCHv2 03/13] clk: RK808: reduce 'struct rk808' usage

[Sebastian Reichel]

Reduce usage of 'struct rk808' (driver data of the parent MFD), so
that only the chip variant field is still being accessed directly.
This allows restructuring the MFD driver to support SPI based
PMICs.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/clk/clk-rk808.c | 34 ++++++++++++++++------------------
 1 file changed, 16 insertions(+), 18 deletions(-)

diff --git a/drivers/clk/clk-rk808.c b/drivers/clk/clk-rk808.c
index 32f833d732ed..f7412b137e5e 100644
--- a/drivers/clk/clk-rk808.c
+++ b/drivers/clk/clk-rk808.c
@@ -12,10 +12,9 @@
 #include <linux/slab.h>
 #include <linux/platform_device.h>
 #include <linux/mfd/rk808.h>
-#include <linux/i2c.h>
 
 struct rk808_clkout {
-	struct rk808 *rk808;
+	struct regmap		*regmap;
 	struct clk_hw		clkout1_hw;
 	struct clk_hw		clkout2_hw;
 };
@@ -31,9 +30,8 @@ static int rk808_clkout2_enable(struct clk_hw *hw, bool enable)
 	struct rk808_clkout *rk808_clkout = container_of(hw,
 							 struct rk808_clkout,
 							 clkout2_hw);
-	struct rk808 *rk808 = rk808_clkout->rk808;
 
-	return regmap_update_bits(rk808->regmap, RK808_CLK32OUT_REG,
+	return regmap_update_bits(rk808_clkout->regmap, RK808_CLK32OUT_REG,
 				  CLK32KOUT2_EN, enable ? CLK32KOUT2_EN : 0);
 }
 
@@ -52,10 +50,9 @@ static int rk808_clkout2_is_prepared(struct clk_hw *hw)
 	struct rk808_clkout *rk808_clkout = container_of(hw,
 							 struct rk808_clkout,
 							 clkout2_hw);
-	struct rk808 *rk808 = rk808_clkout->rk808;
 	uint32_t val;
 
-	int ret = regmap_read(rk808->regmap, RK808_CLK32OUT_REG, &val);
+	int ret = regmap_read(rk808_clkout->regmap, RK808_CLK32OUT_REG, &val);
 
 	if (ret < 0)
 		return ret;
@@ -93,9 +90,8 @@ static int rk817_clkout2_enable(struct clk_hw *hw, bool enable)
 	struct rk808_clkout *rk808_clkout = container_of(hw,
 							 struct rk808_clkout,
 							 clkout2_hw);
-	struct rk808 *rk808 = rk808_clkout->rk808;
 
-	return regmap_update_bits(rk808->regmap, RK817_SYS_CFG(1),
+	return regmap_update_bits(rk808_clkout->regmap, RK817_SYS_CFG(1),
 				  RK817_CLK32KOUT2_EN,
 				  enable ? RK817_CLK32KOUT2_EN : 0);
 }
@@ -115,10 +111,9 @@ static int rk817_clkout2_is_prepared(struct clk_hw *hw)
 	struct rk808_clkout *rk808_clkout = container_of(hw,
 							 struct rk808_clkout,
 							 clkout2_hw);
-	struct rk808 *rk808 = rk808_clkout->rk808;
 	unsigned int val;
 
-	int ret = regmap_read(rk808->regmap, RK817_SYS_CFG(1), &val);
+	int ret = regmap_read(rk808_clkout->regmap, RK817_SYS_CFG(1), &val);
 
 	if (ret < 0)
 		return 0;
@@ -153,18 +148,21 @@ static const struct clk_ops *rkpmic_get_ops(long variant)
 static int rk808_clkout_probe(struct platform_device *pdev)
 {
 	struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
-	struct i2c_client *client = rk808->i2c;
-	struct device_node *node = client->dev.of_node;
+	struct device *dev = &pdev->dev;
 	struct clk_init_data init = {};
 	struct rk808_clkout *rk808_clkout;
 	int ret;
 
-	rk808_clkout = devm_kzalloc(&client->dev,
+	dev->of_node = pdev->dev.parent->of_node;
+
+	rk808_clkout = devm_kzalloc(dev,
 				    sizeof(*rk808_clkout), GFP_KERNEL);
 	if (!rk808_clkout)
 		return -ENOMEM;
 
-	rk808_clkout->rk808 = rk808;
+	rk808_clkout->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+	if (!rk808_clkout->regmap)
+		return -ENODEV;
 
 	init.parent_names = NULL;
 	init.num_parents = 0;
@@ -173,10 +171,10 @@ static int rk808_clkout_probe(struct platform_device *pdev)
 	rk808_clkout->clkout1_hw.init = &init;
 
 	/* optional override of the clockname */
-	of_property_read_string_index(node, "clock-output-names",
+	of_property_read_string_index(dev->of_node, "clock-output-names",
 				      0, &init.name);
 
-	ret = devm_clk_hw_register(&client->dev, &rk808_clkout->clkout1_hw);
+	ret = devm_clk_hw_register(dev, &rk808_clkout->clkout1_hw);
 	if (ret)
 		return ret;
 
@@ -185,10 +183,10 @@ static int rk808_clkout_probe(struct platform_device *pdev)
 	rk808_clkout->clkout2_hw.init = &init;
 
 	/* optional override of the clockname */
-	of_property_read_string_index(node, "clock-output-names",
+	of_property_read_string_index(dev->of_node, "clock-output-names",
 				      1, &init.name);
 
-	ret = devm_clk_hw_register(&client->dev, &rk808_clkout->clkout2_hw);
+	ret = devm_clk_hw_register(dev, &rk808_clkout->clkout2_hw);
 	if (ret)
 		return ret;
 
-- 
2.35.1


_______________________________________________
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Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

[PATCHv2 04/13] regulator: rk808: reduce 'struct rk808' usage

[Sebastian Reichel]

Reduce usage of 'struct rk808' (driver data of the parent MFD), so
that only the chip variant field is still being accessed directly.
This allows restructuring the MFD driver to support SPI based
PMICs.

Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/regulator/rk808-regulator.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c
index 127dc2e2e690..ce9c64cadeba 100644
--- a/drivers/regulator/rk808-regulator.c
+++ b/drivers/regulator/rk808-regulator.c
@@ -14,7 +14,6 @@
 
 #include <linux/delay.h>
 #include <linux/gpio.h>
-#include <linux/i2c.h>
 #include <linux/module.h>
 #include <linux/of_device.h>
 #include <linux/of_gpio.h>
@@ -1286,19 +1285,23 @@ static int rk808_regulator_dt_parse_pdata(struct device *dev,
 static int rk808_regulator_probe(struct platform_device *pdev)
 {
 	struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
-	struct i2c_client *client = rk808->i2c;
 	struct regulator_config config = {};
 	struct regulator_dev *rk808_rdev;
 	struct rk808_regulator_data *pdata;
 	const struct regulator_desc *regulators;
+	struct regmap *regmap;
 	int ret, i, nregulators;
 
+	regmap = dev_get_regmap(pdev->dev.parent, NULL);
+	if (!regmap)
+		return -ENODEV;
+
 	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
 	if (!pdata)
 		return -ENOMEM;
 
-	ret = rk808_regulator_dt_parse_pdata(&pdev->dev, &client->dev,
-					     rk808->regmap, pdata);
+	ret = rk808_regulator_dt_parse_pdata(&pdev->dev, pdev->dev.parent,
+					     regmap, pdata);
 	if (ret < 0)
 		return ret;
 
@@ -1326,21 +1329,22 @@ static int rk808_regulator_probe(struct platform_device *pdev)
 		nregulators = RK818_NUM_REGULATORS;
 		break;
 	default:
-		dev_err(&client->dev, "unsupported RK8XX ID %lu\n",
+		dev_err(&pdev->dev, "unsupported RK8XX ID %lu\n",
 			rk808->variant);
 		return -EINVAL;
 	}
 
-	config.dev = &client->dev;
+	config.dev = &pdev->dev;
+	config.dev->of_node = pdev->dev.parent->of_node;
 	config.driver_data = pdata;
-	config.regmap = rk808->regmap;
+	config.regmap = regmap;
 
 	/* Instantiate the regulators */
 	for (i = 0; i < nregulators; i++) {
 		rk808_rdev = devm_regulator_register(&pdev->dev,
 						     &regulators[i], &config);
 		if (IS_ERR(rk808_rdev)) {
-			dev_err(&client->dev,
+			dev_err(&pdev->dev,
 				"failed to register %d regulator\n", i);
 			return PTR_ERR(rk808_rdev);
 		}
-- 
2.35.1

[PATCHv2 04/13] regulator: rk808: reduce 'struct rk808' usage

[Sebastian Reichel]

Reduce usage of 'struct rk808' (driver data of the parent MFD), so
that only the chip variant field is still being accessed directly.
This allows restructuring the MFD driver to support SPI based
PMICs.

Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/regulator/rk808-regulator.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c
index 127dc2e2e690..ce9c64cadeba 100644
--- a/drivers/regulator/rk808-regulator.c
+++ b/drivers/regulator/rk808-regulator.c
@@ -14,7 +14,6 @@
 
 #include <linux/delay.h>
 #include <linux/gpio.h>
-#include <linux/i2c.h>
 #include <linux/module.h>
 #include <linux/of_device.h>
 #include <linux/of_gpio.h>
@@ -1286,19 +1285,23 @@ static int rk808_regulator_dt_parse_pdata(struct device *dev,
 static int rk808_regulator_probe(struct platform_device *pdev)
 {
 	struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
-	struct i2c_client *client = rk808->i2c;
 	struct regulator_config config = {};
 	struct regulator_dev *rk808_rdev;
 	struct rk808_regulator_data *pdata;
 	const struct regulator_desc *regulators;
+	struct regmap *regmap;
 	int ret, i, nregulators;
 
+	regmap = dev_get_regmap(pdev->dev.parent, NULL);
+	if (!regmap)
+		return -ENODEV;
+
 	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
 	if (!pdata)
 		return -ENOMEM;
 
-	ret = rk808_regulator_dt_parse_pdata(&pdev->dev, &client->dev,
-					     rk808->regmap, pdata);
+	ret = rk808_regulator_dt_parse_pdata(&pdev->dev, pdev->dev.parent,
+					     regmap, pdata);
 	if (ret < 0)
 		return ret;
 
@@ -1326,21 +1329,22 @@ static int rk808_regulator_probe(struct platform_device *pdev)
 		nregulators = RK818_NUM_REGULATORS;
 		break;
 	default:
-		dev_err(&client->dev, "unsupported RK8XX ID %lu\n",
+		dev_err(&pdev->dev, "unsupported RK8XX ID %lu\n",
 			rk808->variant);
 		return -EINVAL;
 	}
 
-	config.dev = &client->dev;
+	config.dev = &pdev->dev;
+	config.dev->of_node = pdev->dev.parent->of_node;
 	config.driver_data = pdata;
-	config.regmap = rk808->regmap;
+	config.regmap = regmap;
 
 	/* Instantiate the regulators */
 	for (i = 0; i < nregulators; i++) {
 		rk808_rdev = devm_regulator_register(&pdev->dev,
 						     &regulators[i], &config);
 		if (IS_ERR(rk808_rdev)) {
-			dev_err(&client->dev,
+			dev_err(&pdev->dev,
 				"failed to register %d regulator\n", i);
 			return PTR_ERR(rk808_rdev);
 		}
-- 
2.35.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

[PATCHv2 05/13] rtc: rk808: reduce 'struct rk808' usage

[Sebastian Reichel]

Reduce usage of 'struct rk808' (driver data of the parent MFD), so
that only the chip variant field is still being accessed directly.
This allows restructuring the MFD driver to support SPI based
PMICs.

Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/rtc/rtc-rk808.c | 47 ++++++++++++++++++-----------------------
 1 file changed, 20 insertions(+), 27 deletions(-)

diff --git a/drivers/rtc/rtc-rk808.c b/drivers/rtc/rtc-rk808.c
index e920da8c08da..2d9bcb3ce1e3 100644
--- a/drivers/rtc/rtc-rk808.c
+++ b/drivers/rtc/rtc-rk808.c
@@ -14,7 +14,6 @@
 #include <linux/bcd.h>
 #include <linux/mfd/rk808.h>
 #include <linux/platform_device.h>
-#include <linux/i2c.h>
 
 /* RTC_CTRL_REG bitfields */
 #define BIT_RTC_CTRL_REG_STOP_RTC_M		BIT(0)
@@ -51,7 +50,7 @@ struct rk_rtc_compat_reg {
 };
 
 struct rk808_rtc {
-	struct rk808 *rk808;
+	struct regmap *regmap;
 	struct rtc_device *rtc;
 	struct rk_rtc_compat_reg *creg;
 	int irq;
@@ -97,12 +96,11 @@ static void gregorian_to_rockchip(struct rtc_time *tm)
 static int rk808_rtc_readtime(struct device *dev, struct rtc_time *tm)
 {
 	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
-	struct rk808 *rk808 = rk808_rtc->rk808;
 	u8 rtc_data[NUM_TIME_REGS];
 	int ret;
 
 	/* Force an update of the shadowed registers right now */
-	ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->ctrl_reg,
+	ret = regmap_update_bits(rk808_rtc->regmap, rk808_rtc->creg->ctrl_reg,
 				 BIT_RTC_CTRL_REG_RTC_GET_TIME,
 				 BIT_RTC_CTRL_REG_RTC_GET_TIME);
 	if (ret) {
@@ -116,7 +114,7 @@ static int rk808_rtc_readtime(struct device *dev, struct rtc_time *tm)
 	 * 32khz. If we clear the GET_TIME bit here, the time of i2c transfer
 	 * certainly more than 31.25us: 16 * 2.5us at 400kHz bus frequency.
 	 */
-	ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->ctrl_reg,
+	ret = regmap_update_bits(rk808_rtc->regmap, rk808_rtc->creg->ctrl_reg,
 				 BIT_RTC_CTRL_REG_RTC_GET_TIME,
 				 0);
 	if (ret) {
@@ -124,7 +122,7 @@ static int rk808_rtc_readtime(struct device *dev, struct rtc_time *tm)
 		return ret;
 	}
 
-	ret = regmap_bulk_read(rk808->regmap, rk808_rtc->creg->seconds_reg,
+	ret = regmap_bulk_read(rk808_rtc->regmap, rk808_rtc->creg->seconds_reg,
 			       rtc_data, NUM_TIME_REGS);
 	if (ret) {
 		dev_err(dev, "Failed to bulk read rtc_data: %d\n", ret);
@@ -148,7 +146,6 @@ static int rk808_rtc_readtime(struct device *dev, struct rtc_time *tm)
 static int rk808_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
 	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
-	struct rk808 *rk808 = rk808_rtc->rk808;
 	u8 rtc_data[NUM_TIME_REGS];
 	int ret;
 
@@ -163,7 +160,7 @@ static int rk808_rtc_set_time(struct device *dev, struct rtc_time *tm)
 	rtc_data[6] = bin2bcd(tm->tm_wday);
 
 	/* Stop RTC while updating the RTC registers */
-	ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->ctrl_reg,
+	ret = regmap_update_bits(rk808_rtc->regmap, rk808_rtc->creg->ctrl_reg,
 				 BIT_RTC_CTRL_REG_STOP_RTC_M,
 				 BIT_RTC_CTRL_REG_STOP_RTC_M);
 	if (ret) {
@@ -171,14 +168,14 @@ static int rk808_rtc_set_time(struct device *dev, struct rtc_time *tm)
 		return ret;
 	}
 
-	ret = regmap_bulk_write(rk808->regmap, rk808_rtc->creg->seconds_reg,
+	ret = regmap_bulk_write(rk808_rtc->regmap, rk808_rtc->creg->seconds_reg,
 				rtc_data, NUM_TIME_REGS);
 	if (ret) {
 		dev_err(dev, "Failed to bull write rtc_data: %d\n", ret);
 		return ret;
 	}
 	/* Start RTC again */
-	ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->ctrl_reg,
+	ret = regmap_update_bits(rk808_rtc->regmap, rk808_rtc->creg->ctrl_reg,
 				 BIT_RTC_CTRL_REG_STOP_RTC_M, 0);
 	if (ret) {
 		dev_err(dev, "Failed to update RTC control: %d\n", ret);
@@ -191,12 +188,11 @@ static int rk808_rtc_set_time(struct device *dev, struct rtc_time *tm)
 static int rk808_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
 	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
-	struct rk808 *rk808 = rk808_rtc->rk808;
 	u8 alrm_data[NUM_ALARM_REGS];
 	uint32_t int_reg;
 	int ret;
 
-	ret = regmap_bulk_read(rk808->regmap,
+	ret = regmap_bulk_read(rk808_rtc->regmap,
 			       rk808_rtc->creg->alarm_seconds_reg,
 			       alrm_data, NUM_ALARM_REGS);
 	if (ret) {
@@ -212,7 +208,7 @@ static int rk808_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm)
 	alrm->time.tm_year = (bcd2bin(alrm_data[5] & YEARS_REG_MSK)) + 100;
 	rockchip_to_gregorian(&alrm->time);
 
-	ret = regmap_read(rk808->regmap, rk808_rtc->creg->int_reg, &int_reg);
+	ret = regmap_read(rk808_rtc->regmap, rk808_rtc->creg->int_reg, &int_reg);
 	if (ret) {
 		dev_err(dev, "Failed to read RTC INT REG: %d\n", ret);
 		return ret;
@@ -228,10 +224,9 @@ static int rk808_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm)
 
 static int rk808_rtc_stop_alarm(struct rk808_rtc *rk808_rtc)
 {
-	struct rk808 *rk808 = rk808_rtc->rk808;
 	int ret;
 
-	ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->int_reg,
+	ret = regmap_update_bits(rk808_rtc->regmap, rk808_rtc->creg->int_reg,
 				 BIT_RTC_INTERRUPTS_REG_IT_ALARM_M, 0);
 
 	return ret;
@@ -239,10 +234,9 @@ static int rk808_rtc_stop_alarm(struct rk808_rtc *rk808_rtc)
 
 static int rk808_rtc_start_alarm(struct rk808_rtc *rk808_rtc)
 {
-	struct rk808 *rk808 = rk808_rtc->rk808;
 	int ret;
 
-	ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->int_reg,
+	ret = regmap_update_bits(rk808_rtc->regmap, rk808_rtc->creg->int_reg,
 				 BIT_RTC_INTERRUPTS_REG_IT_ALARM_M,
 				 BIT_RTC_INTERRUPTS_REG_IT_ALARM_M);
 
@@ -252,7 +246,6 @@ static int rk808_rtc_start_alarm(struct rk808_rtc *rk808_rtc)
 static int rk808_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
 	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
-	struct rk808 *rk808 = rk808_rtc->rk808;
 	u8 alrm_data[NUM_ALARM_REGS];
 	int ret;
 
@@ -272,7 +265,7 @@ static int rk808_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
 	alrm_data[4] = bin2bcd(alrm->time.tm_mon + 1);
 	alrm_data[5] = bin2bcd(alrm->time.tm_year - 100);
 
-	ret = regmap_bulk_write(rk808->regmap,
+	ret = regmap_bulk_write(rk808_rtc->regmap,
 				rk808_rtc->creg->alarm_seconds_reg,
 				alrm_data, NUM_ALARM_REGS);
 	if (ret) {
@@ -313,20 +306,18 @@ static int rk808_rtc_alarm_irq_enable(struct device *dev,
 static irqreturn_t rk808_alarm_irq(int irq, void *data)
 {
 	struct rk808_rtc *rk808_rtc = data;
-	struct rk808 *rk808 = rk808_rtc->rk808;
-	struct i2c_client *client = rk808->i2c;
 	int ret;
 
-	ret = regmap_write(rk808->regmap, rk808_rtc->creg->status_reg,
+	ret = regmap_write(rk808_rtc->regmap, rk808_rtc->creg->status_reg,
 			   RTC_STATUS_MASK);
 	if (ret) {
-		dev_err(&client->dev,
+		dev_err(&rk808_rtc->rtc->dev,
 			"%s:Failed to update RTC status: %d\n", __func__, ret);
 		return ret;
 	}
 
 	rtc_update_irq(rk808_rtc->rtc, 1, RTC_IRQF | RTC_AF);
-	dev_dbg(&client->dev,
+	dev_dbg(&rk808_rtc->rtc->dev,
 		 "%s:irq=%d\n", __func__, irq);
 	return IRQ_HANDLED;
 }
@@ -404,10 +395,12 @@ static int rk808_rtc_probe(struct platform_device *pdev)
 		break;
 	}
 	platform_set_drvdata(pdev, rk808_rtc);
-	rk808_rtc->rk808 = rk808;
+	rk808_rtc->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+	if (!rk808_rtc->regmap)
+		return -ENODEV;
 
 	/* start rtc running by default, and use shadowed timer. */
-	ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->ctrl_reg,
+	ret = regmap_update_bits(rk808_rtc->regmap, rk808_rtc->creg->ctrl_reg,
 				 BIT_RTC_CTRL_REG_STOP_RTC_M |
 				 BIT_RTC_CTRL_REG_RTC_READSEL_M,
 				 BIT_RTC_CTRL_REG_RTC_READSEL_M);
@@ -417,7 +410,7 @@ static int rk808_rtc_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	ret = regmap_write(rk808->regmap, rk808_rtc->creg->status_reg,
+	ret = regmap_write(rk808_rtc->regmap, rk808_rtc->creg->status_reg,
 			   RTC_STATUS_MASK);
 	if (ret) {
 		dev_err(&pdev->dev,
-- 
2.35.1

[PATCHv2 05/13] rtc: rk808: reduce 'struct rk808' usage

[Sebastian Reichel]

Reduce usage of 'struct rk808' (driver data of the parent MFD), so
that only the chip variant field is still being accessed directly.
This allows restructuring the MFD driver to support SPI based
PMICs.

Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/rtc/rtc-rk808.c | 47 ++++++++++++++++++-----------------------
 1 file changed, 20 insertions(+), 27 deletions(-)

diff --git a/drivers/rtc/rtc-rk808.c b/drivers/rtc/rtc-rk808.c
index e920da8c08da..2d9bcb3ce1e3 100644
--- a/drivers/rtc/rtc-rk808.c
+++ b/drivers/rtc/rtc-rk808.c
@@ -14,7 +14,6 @@
 #include <linux/bcd.h>
 #include <linux/mfd/rk808.h>
 #include <linux/platform_device.h>
-#include <linux/i2c.h>
 
 /* RTC_CTRL_REG bitfields */
 #define BIT_RTC_CTRL_REG_STOP_RTC_M		BIT(0)
@@ -51,7 +50,7 @@ struct rk_rtc_compat_reg {
 };
 
 struct rk808_rtc {
-	struct rk808 *rk808;
+	struct regmap *regmap;
 	struct rtc_device *rtc;
 	struct rk_rtc_compat_reg *creg;
 	int irq;
@@ -97,12 +96,11 @@ static void gregorian_to_rockchip(struct rtc_time *tm)
 static int rk808_rtc_readtime(struct device *dev, struct rtc_time *tm)
 {
 	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
-	struct rk808 *rk808 = rk808_rtc->rk808;
 	u8 rtc_data[NUM_TIME_REGS];
 	int ret;
 
 	/* Force an update of the shadowed registers right now */
-	ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->ctrl_reg,
+	ret = regmap_update_bits(rk808_rtc->regmap, rk808_rtc->creg->ctrl_reg,
 				 BIT_RTC_CTRL_REG_RTC_GET_TIME,
 				 BIT_RTC_CTRL_REG_RTC_GET_TIME);
 	if (ret) {
@@ -116,7 +114,7 @@ static int rk808_rtc_readtime(struct device *dev, struct rtc_time *tm)
 	 * 32khz. If we clear the GET_TIME bit here, the time of i2c transfer
 	 * certainly more than 31.25us: 16 * 2.5us at 400kHz bus frequency.
 	 */
-	ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->ctrl_reg,
+	ret = regmap_update_bits(rk808_rtc->regmap, rk808_rtc->creg->ctrl_reg,
 				 BIT_RTC_CTRL_REG_RTC_GET_TIME,
 				 0);
 	if (ret) {
@@ -124,7 +122,7 @@ static int rk808_rtc_readtime(struct device *dev, struct rtc_time *tm)
 		return ret;
 	}
 
-	ret = regmap_bulk_read(rk808->regmap, rk808_rtc->creg->seconds_reg,
+	ret = regmap_bulk_read(rk808_rtc->regmap, rk808_rtc->creg->seconds_reg,
 			       rtc_data, NUM_TIME_REGS);
 	if (ret) {
 		dev_err(dev, "Failed to bulk read rtc_data: %d\n", ret);
@@ -148,7 +146,6 @@ static int rk808_rtc_readtime(struct device *dev, struct rtc_time *tm)
 static int rk808_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
 	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
-	struct rk808 *rk808 = rk808_rtc->rk808;
 	u8 rtc_data[NUM_TIME_REGS];
 	int ret;
 
@@ -163,7 +160,7 @@ static int rk808_rtc_set_time(struct device *dev, struct rtc_time *tm)
 	rtc_data[6] = bin2bcd(tm->tm_wday);
 
 	/* Stop RTC while updating the RTC registers */
-	ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->ctrl_reg,
+	ret = regmap_update_bits(rk808_rtc->regmap, rk808_rtc->creg->ctrl_reg,
 				 BIT_RTC_CTRL_REG_STOP_RTC_M,
 				 BIT_RTC_CTRL_REG_STOP_RTC_M);
 	if (ret) {
@@ -171,14 +168,14 @@ static int rk808_rtc_set_time(struct device *dev, struct rtc_time *tm)
 		return ret;
 	}
 
-	ret = regmap_bulk_write(rk808->regmap, rk808_rtc->creg->seconds_reg,
+	ret = regmap_bulk_write(rk808_rtc->regmap, rk808_rtc->creg->seconds_reg,
 				rtc_data, NUM_TIME_REGS);
 	if (ret) {
 		dev_err(dev, "Failed to bull write rtc_data: %d\n", ret);
 		return ret;
 	}
 	/* Start RTC again */
-	ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->ctrl_reg,
+	ret = regmap_update_bits(rk808_rtc->regmap, rk808_rtc->creg->ctrl_reg,
 				 BIT_RTC_CTRL_REG_STOP_RTC_M, 0);
 	if (ret) {
 		dev_err(dev, "Failed to update RTC control: %d\n", ret);
@@ -191,12 +188,11 @@ static int rk808_rtc_set_time(struct device *dev, struct rtc_time *tm)
 static int rk808_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
 	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
-	struct rk808 *rk808 = rk808_rtc->rk808;
 	u8 alrm_data[NUM_ALARM_REGS];
 	uint32_t int_reg;
 	int ret;
 
-	ret = regmap_bulk_read(rk808->regmap,
+	ret = regmap_bulk_read(rk808_rtc->regmap,
 			       rk808_rtc->creg->alarm_seconds_reg,
 			       alrm_data, NUM_ALARM_REGS);
 	if (ret) {
@@ -212,7 +208,7 @@ static int rk808_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm)
 	alrm->time.tm_year = (bcd2bin(alrm_data[5] & YEARS_REG_MSK)) + 100;
 	rockchip_to_gregorian(&alrm->time);
 
-	ret = regmap_read(rk808->regmap, rk808_rtc->creg->int_reg, &int_reg);
+	ret = regmap_read(rk808_rtc->regmap, rk808_rtc->creg->int_reg, &int_reg);
 	if (ret) {
 		dev_err(dev, "Failed to read RTC INT REG: %d\n", ret);
 		return ret;
@@ -228,10 +224,9 @@ static int rk808_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm)
 
 static int rk808_rtc_stop_alarm(struct rk808_rtc *rk808_rtc)
 {
-	struct rk808 *rk808 = rk808_rtc->rk808;
 	int ret;
 
-	ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->int_reg,
+	ret = regmap_update_bits(rk808_rtc->regmap, rk808_rtc->creg->int_reg,
 				 BIT_RTC_INTERRUPTS_REG_IT_ALARM_M, 0);
 
 	return ret;
@@ -239,10 +234,9 @@ static int rk808_rtc_stop_alarm(struct rk808_rtc *rk808_rtc)
 
 static int rk808_rtc_start_alarm(struct rk808_rtc *rk808_rtc)
 {
-	struct rk808 *rk808 = rk808_rtc->rk808;
 	int ret;
 
-	ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->int_reg,
+	ret = regmap_update_bits(rk808_rtc->regmap, rk808_rtc->creg->int_reg,
 				 BIT_RTC_INTERRUPTS_REG_IT_ALARM_M,
 				 BIT_RTC_INTERRUPTS_REG_IT_ALARM_M);
 
@@ -252,7 +246,6 @@ static int rk808_rtc_start_alarm(struct rk808_rtc *rk808_rtc)
 static int rk808_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
 	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
-	struct rk808 *rk808 = rk808_rtc->rk808;
 	u8 alrm_data[NUM_ALARM_REGS];
 	int ret;
 
@@ -272,7 +265,7 @@ static int rk808_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
 	alrm_data[4] = bin2bcd(alrm->time.tm_mon + 1);
 	alrm_data[5] = bin2bcd(alrm->time.tm_year - 100);
 
-	ret = regmap_bulk_write(rk808->regmap,
+	ret = regmap_bulk_write(rk808_rtc->regmap,
 				rk808_rtc->creg->alarm_seconds_reg,
 				alrm_data, NUM_ALARM_REGS);
 	if (ret) {
@@ -313,20 +306,18 @@ static int rk808_rtc_alarm_irq_enable(struct device *dev,
 static irqreturn_t rk808_alarm_irq(int irq, void *data)
 {
 	struct rk808_rtc *rk808_rtc = data;
-	struct rk808 *rk808 = rk808_rtc->rk808;
-	struct i2c_client *client = rk808->i2c;
 	int ret;
 
-	ret = regmap_write(rk808->regmap, rk808_rtc->creg->status_reg,
+	ret = regmap_write(rk808_rtc->regmap, rk808_rtc->creg->status_reg,
 			   RTC_STATUS_MASK);
 	if (ret) {
-		dev_err(&client->dev,
+		dev_err(&rk808_rtc->rtc->dev,
 			"%s:Failed to update RTC status: %d\n", __func__, ret);
 		return ret;
 	}
 
 	rtc_update_irq(rk808_rtc->rtc, 1, RTC_IRQF | RTC_AF);
-	dev_dbg(&client->dev,
+	dev_dbg(&rk808_rtc->rtc->dev,
 		 "%s:irq=%d\n", __func__, irq);
 	return IRQ_HANDLED;
 }
@@ -404,10 +395,12 @@ static int rk808_rtc_probe(struct platform_device *pdev)
 		break;
 	}
 	platform_set_drvdata(pdev, rk808_rtc);
-	rk808_rtc->rk808 = rk808;
+	rk808_rtc->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+	if (!rk808_rtc->regmap)
+		return -ENODEV;
 
 	/* start rtc running by default, and use shadowed timer. */
-	ret = regmap_update_bits(rk808->regmap, rk808_rtc->creg->ctrl_reg,
+	ret = regmap_update_bits(rk808_rtc->regmap, rk808_rtc->creg->ctrl_reg,
 				 BIT_RTC_CTRL_REG_STOP_RTC_M |
 				 BIT_RTC_CTRL_REG_RTC_READSEL_M,
 				 BIT_RTC_CTRL_REG_RTC_READSEL_M);
@@ -417,7 +410,7 @@ static int rk808_rtc_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	ret = regmap_write(rk808->regmap, rk808_rtc->creg->status_reg,
+	ret = regmap_write(rk808_rtc->regmap, rk808_rtc->creg->status_reg,
 			   RTC_STATUS_MASK);
 	if (ret) {
 		dev_err(&pdev->dev,
-- 
2.35.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

[PATCHv2 06/13] mfd: rk808: replace 'struct i2c_client' with 'struct device'

[Sebastian Reichel]

Put 'struct device' pointer into the MFD platform_data instead
of the 'struct i2c_client' pointer. This simplifies the code
and prepares the MFD for SPI support.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/mfd/rk808.c       | 6 +++---
 include/linux/mfd/rk808.h | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
index e793de9146f7..7baa0e484ac0 100644
--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk808.c
@@ -556,7 +556,7 @@ static int rk808_power_off(struct sys_off_data *data)
 	}
 	ret = regmap_update_bits(rk808->regmap, reg, bit, bit);
 	if (ret)
-		dev_err(&rk808->i2c->dev, "Failed to shutdown device!\n");
+		dev_err(rk808->dev, "Failed to shutdown device!\n");
 
 	return NOTIFY_DONE;
 }
@@ -579,7 +579,7 @@ static int rk808_restart(struct sys_off_data *data)
 	}
 	ret = regmap_update_bits(rk808->regmap, reg, bit, bit);
 	if (ret)
-		dev_err(&rk808->i2c->dev, "Failed to restart device!\n");
+		dev_err(rk808->dev, "Failed to restart device!\n");
 
 	return NOTIFY_DONE;
 }
@@ -702,7 +702,7 @@ static int rk808_probe(struct i2c_client *client,
 		return -EINVAL;
 	}
 
-	rk808->i2c = client;
+	rk808->dev = &client->dev;
 	i2c_set_clientdata(client, rk808);
 
 	rk808->regmap = devm_regmap_init_i2c(client, rk808->regmap_cfg);
diff --git a/include/linux/mfd/rk808.h b/include/linux/mfd/rk808.h
index 58602032e642..9937b068fa82 100644
--- a/include/linux/mfd/rk808.h
+++ b/include/linux/mfd/rk808.h
@@ -696,7 +696,7 @@ enum {
 };
 
 struct rk808 {
-	struct i2c_client		*i2c;
+	struct device			*dev;
 	struct regmap_irq_chip_data	*irq_data;
 	struct regmap			*regmap;
 	long				variant;
-- 
2.35.1

[PATCHv2 06/13] mfd: rk808: replace 'struct i2c_client' with 'struct device'

[Sebastian Reichel]

Put 'struct device' pointer into the MFD platform_data instead
of the 'struct i2c_client' pointer. This simplifies the code
and prepares the MFD for SPI support.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/mfd/rk808.c       | 6 +++---
 include/linux/mfd/rk808.h | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
index e793de9146f7..7baa0e484ac0 100644
--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk808.c
@@ -556,7 +556,7 @@ static int rk808_power_off(struct sys_off_data *data)
 	}
 	ret = regmap_update_bits(rk808->regmap, reg, bit, bit);
 	if (ret)
-		dev_err(&rk808->i2c->dev, "Failed to shutdown device!\n");
+		dev_err(rk808->dev, "Failed to shutdown device!\n");
 
 	return NOTIFY_DONE;
 }
@@ -579,7 +579,7 @@ static int rk808_restart(struct sys_off_data *data)
 	}
 	ret = regmap_update_bits(rk808->regmap, reg, bit, bit);
 	if (ret)
-		dev_err(&rk808->i2c->dev, "Failed to restart device!\n");
+		dev_err(rk808->dev, "Failed to restart device!\n");
 
 	return NOTIFY_DONE;
 }
@@ -702,7 +702,7 @@ static int rk808_probe(struct i2c_client *client,
 		return -EINVAL;
 	}
 
-	rk808->i2c = client;
+	rk808->dev = &client->dev;
 	i2c_set_clientdata(client, rk808);
 
 	rk808->regmap = devm_regmap_init_i2c(client, rk808->regmap_cfg);
diff --git a/include/linux/mfd/rk808.h b/include/linux/mfd/rk808.h
index 58602032e642..9937b068fa82 100644
--- a/include/linux/mfd/rk808.h
+++ b/include/linux/mfd/rk808.h
@@ -696,7 +696,7 @@ enum {
 };
 
 struct rk808 {
-	struct i2c_client		*i2c;
+	struct device			*dev;
 	struct regmap_irq_chip_data	*irq_data;
 	struct regmap			*regmap;
 	long				variant;
-- 
2.35.1


_______________________________________________
Linux-rockchip mailing list
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http://lists.infradead.org/mailman/listinfo/linux-rockchip

[PATCHv2 07/13] mfd: rk808: split into core and i2c

[Sebastian Reichel]

Split rk808 into a core and an i2c part in preperation for
SPI support.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/mfd/Kconfig                   |   5 +
 drivers/mfd/Makefile                  |   3 +-
 drivers/mfd/{rk808.c => rk8xx-core.c} | 202 +++++--------------------
 drivers/mfd/rk8xx-i2c.c               | 205 ++++++++++++++++++++++++++
 include/linux/mfd/rk808.h             |   6 +
 5 files changed, 251 insertions(+), 170 deletions(-)
 rename drivers/mfd/{rk808.c => rk8xx-core.c} (75%)
 create mode 100644 drivers/mfd/rk8xx-i2c.c

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index abb58ab1a1a4..acb7133d6db6 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -1143,11 +1143,16 @@ config MFD_RC5T583
 	  different functionality of the device.
 
 config MFD_RK808
+	bool
+	select MFD_CORE
+
+config MFD_RK8XX_I2C
 	tristate "Rockchip RK805/RK808/RK809/RK817/RK818 Power Management Chip"
 	depends on I2C && OF
 	select MFD_CORE
 	select REGMAP_I2C
 	select REGMAP_IRQ
+	select MFD_RK808
 	help
 	  If you say yes here you get support for the RK805, RK808, RK809,
 	  RK817 and RK818 Power Management chips.
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 858cacf659d6..25ac617a5e6b 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -215,7 +215,8 @@ obj-$(CONFIG_MFD_PALMAS)	+= palmas.o
 obj-$(CONFIG_MFD_VIPERBOARD)    += viperboard.o
 obj-$(CONFIG_MFD_NTXEC)		+= ntxec.o
 obj-$(CONFIG_MFD_RC5T583)	+= rc5t583.o rc5t583-irq.o
-obj-$(CONFIG_MFD_RK808)		+= rk808.o
+obj-$(CONFIG_MFD_RK808)		+= rk8xx-core.o
+obj-$(CONFIG_MFD_RK8XX_I2C)	+= rk8xx-i2c.o
 obj-$(CONFIG_MFD_RN5T618)	+= rn5t618.o
 obj-$(CONFIG_MFD_SEC_CORE)	+= sec-core.o sec-irq.o
 obj-$(CONFIG_MFD_SYSCON)	+= syscon.o
diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk8xx-core.c
similarity index 75%
rename from drivers/mfd/rk808.c
rename to drivers/mfd/rk8xx-core.c
index 7baa0e484ac0..d0ce17d98fdc 100644
--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk8xx-core.c
@@ -12,7 +12,6 @@
  * Author: Wadim Egorov <w.egorov@phytec.de>
  */
 
-#include <linux/i2c.h>
 #include <linux/interrupt.h>
 #include <linux/mfd/rk808.h>
 #include <linux/mfd/core.h>
@@ -27,88 +26,6 @@ struct rk808_reg_data {
 	int value;
 };
 
-static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg)
-{
-	/*
-	 * Notes:
-	 * - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but
-	 *   we don't use that feature.  It's better to cache.
-	 * - It's unlikely we care that RK808_DEVCTRL_REG is volatile since
-	 *   bits are cleared in case when we shutoff anyway, but better safe.
-	 */
-
-	switch (reg) {
-	case RK808_SECONDS_REG ... RK808_WEEKS_REG:
-	case RK808_RTC_STATUS_REG:
-	case RK808_VB_MON_REG:
-	case RK808_THERMAL_REG:
-	case RK808_DCDC_UV_STS_REG:
-	case RK808_LDO_UV_STS_REG:
-	case RK808_DCDC_PG_REG:
-	case RK808_LDO_PG_REG:
-	case RK808_DEVCTRL_REG:
-	case RK808_INT_STS_REG1:
-	case RK808_INT_STS_REG2:
-		return true;
-	}
-
-	return false;
-}
-
-static bool rk817_is_volatile_reg(struct device *dev, unsigned int reg)
-{
-	/*
-	 * Notes:
-	 * - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but
-	 *   we don't use that feature.  It's better to cache.
-	 */
-
-	switch (reg) {
-	case RK817_SECONDS_REG ... RK817_WEEKS_REG:
-	case RK817_RTC_STATUS_REG:
-	case RK817_CODEC_DTOP_LPT_SRST:
-	case RK817_INT_STS_REG0:
-	case RK817_INT_STS_REG1:
-	case RK817_INT_STS_REG2:
-	case RK817_SYS_STS:
-		return true;
-	}
-
-	return true;
-}
-
-static const struct regmap_config rk818_regmap_config = {
-	.reg_bits = 8,
-	.val_bits = 8,
-	.max_register = RK818_USB_CTRL_REG,
-	.cache_type = REGCACHE_RBTREE,
-	.volatile_reg = rk808_is_volatile_reg,
-};
-
-static const struct regmap_config rk805_regmap_config = {
-	.reg_bits = 8,
-	.val_bits = 8,
-	.max_register = RK805_OFF_SOURCE_REG,
-	.cache_type = REGCACHE_RBTREE,
-	.volatile_reg = rk808_is_volatile_reg,
-};
-
-static const struct regmap_config rk808_regmap_config = {
-	.reg_bits = 8,
-	.val_bits = 8,
-	.max_register = RK808_IO_POL_REG,
-	.cache_type = REGCACHE_RBTREE,
-	.volatile_reg = rk808_is_volatile_reg,
-};
-
-static const struct regmap_config rk817_regmap_config = {
-	.reg_bits = 8,
-	.val_bits = 8,
-	.max_register = RK817_GPIO_INT_CFG,
-	.cache_type = REGCACHE_NONE,
-	.volatile_reg = rk817_is_volatile_reg,
-};
-
 static const struct resource rtc_resources[] = {
 	DEFINE_RES_IRQ(RK808_IRQ_RTC_ALARM),
 };
@@ -584,9 +501,9 @@ static int rk808_restart(struct sys_off_data *data)
 	return NOTIFY_DONE;
 }
 
-static void rk8xx_shutdown(struct i2c_client *client)
+void rk8xx_shutdown(struct device *dev)
 {
-	struct rk808 *rk808 = i2c_get_clientdata(client);
+	struct rk808 *rk808 = dev_get_drvdata(dev);
 	int ret;
 
 	switch (rk808->variant) {
@@ -607,64 +524,31 @@ static void rk8xx_shutdown(struct i2c_client *client)
 		return;
 	}
 	if (ret)
-		dev_warn(&client->dev,
+		dev_warn(dev,
 			 "Cannot switch to power down function\n");
 }
+EXPORT_SYMBOL_GPL(rk8xx_shutdown);
 
-static const struct of_device_id rk808_of_match[] = {
-	{ .compatible = "rockchip,rk805" },
-	{ .compatible = "rockchip,rk808" },
-	{ .compatible = "rockchip,rk809" },
-	{ .compatible = "rockchip,rk817" },
-	{ .compatible = "rockchip,rk818" },
-	{ },
-};
-MODULE_DEVICE_TABLE(of, rk808_of_match);
-
-static int rk808_probe(struct i2c_client *client,
-		       const struct i2c_device_id *id)
+int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap *regmap)
 {
-	struct device_node *np = client->dev.of_node;
 	struct rk808 *rk808;
 	const struct rk808_reg_data *pre_init_reg;
 	const struct mfd_cell *cells;
 	int nr_pre_init_regs;
 	int nr_cells;
-	int msb, lsb;
-	unsigned char pmic_id_msb, pmic_id_lsb;
 	int ret;
 	int i;
 
-	rk808 = devm_kzalloc(&client->dev, sizeof(*rk808), GFP_KERNEL);
+	rk808 = devm_kzalloc(dev, sizeof(*rk808), GFP_KERNEL);
 	if (!rk808)
 		return -ENOMEM;
-
-	if (of_device_is_compatible(np, "rockchip,rk817") ||
-	    of_device_is_compatible(np, "rockchip,rk809")) {
-		pmic_id_msb = RK817_ID_MSB;
-		pmic_id_lsb = RK817_ID_LSB;
-	} else {
-		pmic_id_msb = RK808_ID_MSB;
-		pmic_id_lsb = RK808_ID_LSB;
-	}
-
-	/* Read chip variant */
-	msb = i2c_smbus_read_byte_data(client, pmic_id_msb);
-	if (msb < 0)
-		return dev_err_probe(&client->dev, msb, "failed to read the chip id at 0x%x\n",
-				     RK808_ID_MSB);
-
-	lsb = i2c_smbus_read_byte_data(client, pmic_id_lsb);
-	if (lsb < 0)
-		return dev_err_probe(&client->dev, lsb, "failed to read the chip id at 0x%x\n",
-				     RK808_ID_LSB);
-
-	rk808->variant = ((msb << 8) | lsb) & RK8XX_ID_MSK;
-	dev_info(&client->dev, "chip id: 0x%x\n", (unsigned int)rk808->variant);
+	rk808->dev = dev;
+	rk808->variant = variant;
+	rk808->regmap = regmap;
+	dev_set_drvdata(dev, rk808);
 
 	switch (rk808->variant) {
 	case RK805_ID:
-		rk808->regmap_cfg = &rk805_regmap_config;
 		rk808->regmap_irq_chip = &rk805_irq_chip;
 		pre_init_reg = rk805_pre_init_reg;
 		nr_pre_init_regs = ARRAY_SIZE(rk805_pre_init_reg);
@@ -672,7 +556,6 @@ static int rk808_probe(struct i2c_client *client,
 		nr_cells = ARRAY_SIZE(rk805s);
 		break;
 	case RK808_ID:
-		rk808->regmap_cfg = &rk808_regmap_config;
 		rk808->regmap_irq_chip = &rk808_irq_chip;
 		pre_init_reg = rk808_pre_init_reg;
 		nr_pre_init_regs = ARRAY_SIZE(rk808_pre_init_reg);
@@ -680,7 +563,6 @@ static int rk808_probe(struct i2c_client *client,
 		nr_cells = ARRAY_SIZE(rk808s);
 		break;
 	case RK818_ID:
-		rk808->regmap_cfg = &rk818_regmap_config;
 		rk808->regmap_irq_chip = &rk818_irq_chip;
 		pre_init_reg = rk818_pre_init_reg;
 		nr_pre_init_regs = ARRAY_SIZE(rk818_pre_init_reg);
@@ -689,7 +571,6 @@ static int rk808_probe(struct i2c_client *client,
 		break;
 	case RK809_ID:
 	case RK817_ID:
-		rk808->regmap_cfg = &rk817_regmap_config;
 		rk808->regmap_irq_chip = &rk817_irq_chip;
 		pre_init_reg = rk817_pre_init_reg;
 		nr_pre_init_regs = ARRAY_SIZE(rk817_pre_init_reg);
@@ -697,27 +578,20 @@ static int rk808_probe(struct i2c_client *client,
 		nr_cells = ARRAY_SIZE(rk817s);
 		break;
 	default:
-		dev_err(&client->dev, "Unsupported RK8XX ID %lu\n",
-			rk808->variant);
+		dev_err(dev, "Unsupported RK8XX ID %lu\n", rk808->variant);
 		return -EINVAL;
 	}
 
-	rk808->dev = &client->dev;
-	i2c_set_clientdata(client, rk808);
+	dev_info(dev, "chip id: 0x%x\n", (unsigned int)rk808->variant);
 
-	rk808->regmap = devm_regmap_init_i2c(client, rk808->regmap_cfg);
-	if (IS_ERR(rk808->regmap))
-		return dev_err_probe(&client->dev, PTR_ERR(rk808->regmap),
-				     "regmap initialization failed\n");
+	if (!irq)
+		return dev_err_probe(dev, -EINVAL, "No interrupt support, no core IRQ\n");
 
-	if (!client->irq)
-		return dev_err_probe(&client->dev, -EINVAL, "No interrupt support, no core IRQ\n");
-
-	ret = devm_regmap_add_irq_chip(&client->dev, rk808->regmap, client->irq,
+	ret = devm_regmap_add_irq_chip(dev, rk808->regmap, irq,
 				       IRQF_ONESHOT, -1,
 				       rk808->regmap_irq_chip, &rk808->irq_data);
 	if (ret)
-		return dev_err_probe(&client->dev, ret, "Failed to add irq_chip\n");
+		return dev_err_probe(dev, ret, "Failed to add irq_chip\n");
 
 	for (i = 0; i < nr_pre_init_regs; i++) {
 		ret = regmap_update_bits(rk808->regmap,
@@ -725,45 +599,46 @@ static int rk808_probe(struct i2c_client *client,
 					pre_init_reg[i].mask,
 					pre_init_reg[i].value);
 		if (ret)
-			return dev_err_probe(&client->dev, ret, "0x%x write err\n",
+			return dev_err_probe(dev, ret, "0x%x write err\n",
 					     pre_init_reg[i].addr);
 	}
 
-	ret = devm_mfd_add_devices(&client->dev, PLATFORM_DEVID_NONE,
+	ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE,
 			      cells, nr_cells, NULL, 0,
 			      regmap_irq_get_domain(rk808->irq_data));
 	if (ret)
-		return dev_err_probe(&client->dev, ret, "failed to add MFD devices\n");
+		return dev_err_probe(dev, ret, "failed to add MFD devices\n");
 
-	if (of_property_read_bool(np, "rockchip,system-power-controller")) {
-		ret = devm_register_sys_off_handler(&client->dev,
+	if (device_property_read_bool(dev, "rockchip,system-power-controller")) {
+		ret = devm_register_sys_off_handler(dev,
 				    SYS_OFF_MODE_POWER_OFF_PREPARE, SYS_OFF_PRIO_HIGH,
 				    &rk808_power_off, rk808);
 		if (ret)
-			return dev_err_probe(&client->dev, ret,
+			return dev_err_probe(dev, ret,
 					     "failed to register poweroff handler\n");
 
 		switch (rk808->variant) {
 		case RK809_ID:
 		case RK817_ID:
-			ret = devm_register_sys_off_handler(&client->dev,
+			ret = devm_register_sys_off_handler(dev,
 							    SYS_OFF_MODE_RESTART, SYS_OFF_PRIO_HIGH,
 							    &rk808_restart, rk808);
 			if (ret)
-				dev_warn(&client->dev, "failed to register rst handler, %d\n", ret);
+				dev_warn(dev, "failed to register rst handler, %d\n", ret);
 			break;
 		default:
-			dev_dbg(&client->dev, "pmic controlled board reset not supported\n");
+			dev_dbg(dev, "pmic controlled board reset not supported\n");
 			break;
 		}
 	}
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(rk8xx_probe);
 
-static int __maybe_unused rk8xx_suspend(struct device *dev)
+int rk8xx_suspend(struct device *dev)
 {
-	struct rk808 *rk808 = i2c_get_clientdata(to_i2c_client(dev));
+	struct rk808 *rk808 = dev_get_drvdata(dev);
 	int ret = 0;
 
 	switch (rk808->variant) {
@@ -786,10 +661,11 @@ static int __maybe_unused rk8xx_suspend(struct device *dev)
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(rk8xx_suspend);
 
-static int __maybe_unused rk8xx_resume(struct device *dev)
+int rk8xx_resume(struct device *dev)
 {
-	struct rk808 *rk808 = i2c_get_clientdata(to_i2c_client(dev));
+	struct rk808 *rk808 = dev_get_drvdata(dev);
 	int ret = 0;
 
 	switch (rk808->variant) {
@@ -806,22 +682,10 @@ static int __maybe_unused rk8xx_resume(struct device *dev)
 
 	return ret;
 }
-static SIMPLE_DEV_PM_OPS(rk8xx_pm_ops, rk8xx_suspend, rk8xx_resume);
-
-static struct i2c_driver rk808_i2c_driver = {
-	.driver = {
-		.name = "rk808",
-		.of_match_table = rk808_of_match,
-		.pm = &rk8xx_pm_ops,
-	},
-	.probe    = rk808_probe,
-	.shutdown = rk8xx_shutdown,
-};
-
-module_i2c_driver(rk808_i2c_driver);
+EXPORT_SYMBOL_GPL(rk8xx_resume);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
 MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>");
 MODULE_AUTHOR("Wadim Egorov <w.egorov@phytec.de>");
-MODULE_DESCRIPTION("RK808/RK818 PMIC driver");
+MODULE_DESCRIPTION("RK8xx PMIC core");
diff --git a/drivers/mfd/rk8xx-i2c.c b/drivers/mfd/rk8xx-i2c.c
new file mode 100644
index 000000000000..aeb27afaad88
--- /dev/null
+++ b/drivers/mfd/rk8xx-i2c.c
@@ -0,0 +1,205 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * MFD i2c driver for Rockchip RK808/RK818
+ *
+ * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
+ *
+ * Author: Chris Zhong <zyw@rock-chips.com>
+ * Author: Zhang Qing <zhangqing@rock-chips.com>
+ *
+ * Copyright (C) 2016 PHYTEC Messtechnik GmbH
+ *
+ * Author: Wadim Egorov <w.egorov@phytec.de>
+ */
+
+#include <linux/i2c.h>
+#include <linux/mfd/rk808.h>
+
+static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+	/*
+	 * Notes:
+	 * - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but
+	 *   we don't use that feature.  It's better to cache.
+	 * - It's unlikely we care that RK808_DEVCTRL_REG is volatile since
+	 *   bits are cleared in case when we shutoff anyway, but better safe.
+	 */
+
+	switch (reg) {
+	case RK808_SECONDS_REG ... RK808_WEEKS_REG:
+	case RK808_RTC_STATUS_REG:
+	case RK808_VB_MON_REG:
+	case RK808_THERMAL_REG:
+	case RK808_DCDC_UV_STS_REG:
+	case RK808_LDO_UV_STS_REG:
+	case RK808_DCDC_PG_REG:
+	case RK808_LDO_PG_REG:
+	case RK808_DEVCTRL_REG:
+	case RK808_INT_STS_REG1:
+	case RK808_INT_STS_REG2:
+		return true;
+	}
+
+	return false;
+}
+
+static bool rk817_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+	/*
+	 * Notes:
+	 * - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but
+	 *   we don't use that feature.  It's better to cache.
+	 */
+
+	switch (reg) {
+	case RK817_SECONDS_REG ... RK817_WEEKS_REG:
+	case RK817_RTC_STATUS_REG:
+	case RK817_CODEC_DTOP_LPT_SRST:
+	case RK817_INT_STS_REG0:
+	case RK817_INT_STS_REG1:
+	case RK817_INT_STS_REG2:
+	case RK817_SYS_STS:
+		return true;
+	}
+
+	return true;
+}
+
+static const struct regmap_config rk818_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = RK818_USB_CTRL_REG,
+	.cache_type = REGCACHE_RBTREE,
+	.volatile_reg = rk808_is_volatile_reg,
+};
+
+static const struct regmap_config rk805_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = RK805_OFF_SOURCE_REG,
+	.cache_type = REGCACHE_RBTREE,
+	.volatile_reg = rk808_is_volatile_reg,
+};
+
+static const struct regmap_config rk808_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = RK808_IO_POL_REG,
+	.cache_type = REGCACHE_RBTREE,
+	.volatile_reg = rk808_is_volatile_reg,
+};
+
+static const struct regmap_config rk817_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = RK817_GPIO_INT_CFG,
+	.cache_type = REGCACHE_NONE,
+	.volatile_reg = rk817_is_volatile_reg,
+};
+
+static int rk8xx_i2c_get_variant(struct i2c_client *client)
+{
+	u8 pmic_id_msb, pmic_id_lsb;
+	int msb, lsb;
+
+	if (of_device_is_compatible(client->dev.of_node, "rockchip,rk817") ||
+	    of_device_is_compatible(client->dev.of_node, "rockchip,rk809")) {
+		pmic_id_msb = RK817_ID_MSB;
+		pmic_id_lsb = RK817_ID_LSB;
+	} else {
+		pmic_id_msb = RK808_ID_MSB;
+		pmic_id_lsb = RK808_ID_LSB;
+	}
+
+	/* Read chip variant */
+	msb = i2c_smbus_read_byte_data(client, pmic_id_msb);
+	if (msb < 0)
+		return dev_err_probe(&client->dev, msb, "failed to read the chip id at 0x%x\n",
+				     pmic_id_msb);
+
+	lsb = i2c_smbus_read_byte_data(client, pmic_id_lsb);
+	if (lsb < 0)
+		return dev_err_probe(&client->dev, lsb, "failed to read the chip id at 0x%x\n",
+				     pmic_id_lsb);
+
+	return ((msb << 8) | lsb) & RK8XX_ID_MSK;
+}
+
+static int rk8xx_i2c_probe(struct i2c_client *client)
+{
+	const struct regmap_config *regmap_cfg;
+	struct regmap *regmap;
+	int variant;
+
+	variant = rk8xx_i2c_get_variant(client);
+	if (variant < 0)
+		return variant;
+
+	switch (variant) {
+	case RK805_ID:
+		regmap_cfg = &rk805_regmap_config;
+		break;
+	case RK808_ID:
+		regmap_cfg = &rk808_regmap_config;
+		break;
+	case RK818_ID:
+		regmap_cfg = &rk818_regmap_config;
+		break;
+	case RK809_ID:
+	case RK817_ID:
+		regmap_cfg = &rk817_regmap_config;
+		break;
+	default:
+		return dev_err_probe(&client->dev, -EINVAL, "Unsupported RK8XX ID %x\n", variant);
+	}
+
+	regmap = devm_regmap_init_i2c(client, regmap_cfg);
+	if (IS_ERR(regmap))
+		return dev_err_probe(&client->dev, PTR_ERR(regmap),
+				     "regmap initialization failed\n");
+
+	return rk8xx_probe(&client->dev, variant, client->irq, regmap);
+}
+
+static void rk8xx_i2c_shutdown(struct i2c_client *client)
+{
+	rk8xx_shutdown(&client->dev);
+}
+
+static int __maybe_unused rk8xx_i2c_suspend(struct device *dev)
+{
+	return rk8xx_suspend(dev);
+}
+
+static int __maybe_unused rk8xx_i2c_resume(struct device *dev)
+{
+	return rk8xx_resume(dev);
+}
+static SIMPLE_DEV_PM_OPS(rk8xx_i2c_pm_ops, rk8xx_i2c_suspend, rk8xx_i2c_resume);
+
+static const struct of_device_id rk8xx_i2c_of_match[] = {
+	{ .compatible = "rockchip,rk805" },
+	{ .compatible = "rockchip,rk808" },
+	{ .compatible = "rockchip,rk809" },
+	{ .compatible = "rockchip,rk817" },
+	{ .compatible = "rockchip,rk818" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, rk8xx_i2c_of_match);
+
+static struct i2c_driver rk8xx_i2c_driver = {
+	.driver = {
+		.name = "rk8xx-i2c",
+		.of_match_table = rk8xx_i2c_of_match,
+		.pm = &rk8xx_i2c_pm_ops,
+	},
+	.probe_new = rk8xx_i2c_probe,
+	.shutdown  = rk8xx_i2c_shutdown,
+};
+module_i2c_driver(rk8xx_i2c_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
+MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>");
+MODULE_AUTHOR("Wadim Egorov <w.egorov@phytec.de>");
+MODULE_DESCRIPTION("RK8xx I2C PMIC driver");
diff --git a/include/linux/mfd/rk808.h b/include/linux/mfd/rk808.h
index 9937b068fa82..c5ddfb0e5353 100644
--- a/include/linux/mfd/rk808.h
+++ b/include/linux/mfd/rk808.h
@@ -703,4 +703,10 @@ struct rk808 {
 	const struct regmap_config	*regmap_cfg;
 	const struct regmap_irq_chip	*regmap_irq_chip;
 };
+
+void rk8xx_shutdown(struct device *dev);
+int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap *regmap);
+int rk8xx_suspend(struct device *dev);
+int rk8xx_resume(struct device *dev);
+
 #endif /* __LINUX_REGULATOR_RK808_H */
-- 
2.35.1

[PATCHv2 07/13] mfd: rk808: split into core and i2c

[Sebastian Reichel]

Split rk808 into a core and an i2c part in preperation for
SPI support.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/mfd/Kconfig                   |   5 +
 drivers/mfd/Makefile                  |   3 +-
 drivers/mfd/{rk808.c => rk8xx-core.c} | 202 +++++--------------------
 drivers/mfd/rk8xx-i2c.c               | 205 ++++++++++++++++++++++++++
 include/linux/mfd/rk808.h             |   6 +
 5 files changed, 251 insertions(+), 170 deletions(-)
 rename drivers/mfd/{rk808.c => rk8xx-core.c} (75%)
 create mode 100644 drivers/mfd/rk8xx-i2c.c

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index abb58ab1a1a4..acb7133d6db6 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -1143,11 +1143,16 @@ config MFD_RC5T583
 	  different functionality of the device.
 
 config MFD_RK808
+	bool
+	select MFD_CORE
+
+config MFD_RK8XX_I2C
 	tristate "Rockchip RK805/RK808/RK809/RK817/RK818 Power Management Chip"
 	depends on I2C && OF
 	select MFD_CORE
 	select REGMAP_I2C
 	select REGMAP_IRQ
+	select MFD_RK808
 	help
 	  If you say yes here you get support for the RK805, RK808, RK809,
 	  RK817 and RK818 Power Management chips.
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 858cacf659d6..25ac617a5e6b 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -215,7 +215,8 @@ obj-$(CONFIG_MFD_PALMAS)	+= palmas.o
 obj-$(CONFIG_MFD_VIPERBOARD)    += viperboard.o
 obj-$(CONFIG_MFD_NTXEC)		+= ntxec.o
 obj-$(CONFIG_MFD_RC5T583)	+= rc5t583.o rc5t583-irq.o
-obj-$(CONFIG_MFD_RK808)		+= rk808.o
+obj-$(CONFIG_MFD_RK808)		+= rk8xx-core.o
+obj-$(CONFIG_MFD_RK8XX_I2C)	+= rk8xx-i2c.o
 obj-$(CONFIG_MFD_RN5T618)	+= rn5t618.o
 obj-$(CONFIG_MFD_SEC_CORE)	+= sec-core.o sec-irq.o
 obj-$(CONFIG_MFD_SYSCON)	+= syscon.o
diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk8xx-core.c
similarity index 75%
rename from drivers/mfd/rk808.c
rename to drivers/mfd/rk8xx-core.c
index 7baa0e484ac0..d0ce17d98fdc 100644
--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk8xx-core.c
@@ -12,7 +12,6 @@
  * Author: Wadim Egorov <w.egorov@phytec.de>
  */
 
-#include <linux/i2c.h>
 #include <linux/interrupt.h>
 #include <linux/mfd/rk808.h>
 #include <linux/mfd/core.h>
@@ -27,88 +26,6 @@ struct rk808_reg_data {
 	int value;
 };
 
-static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg)
-{
-	/*
-	 * Notes:
-	 * - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but
-	 *   we don't use that feature.  It's better to cache.
-	 * - It's unlikely we care that RK808_DEVCTRL_REG is volatile since
-	 *   bits are cleared in case when we shutoff anyway, but better safe.
-	 */
-
-	switch (reg) {
-	case RK808_SECONDS_REG ... RK808_WEEKS_REG:
-	case RK808_RTC_STATUS_REG:
-	case RK808_VB_MON_REG:
-	case RK808_THERMAL_REG:
-	case RK808_DCDC_UV_STS_REG:
-	case RK808_LDO_UV_STS_REG:
-	case RK808_DCDC_PG_REG:
-	case RK808_LDO_PG_REG:
-	case RK808_DEVCTRL_REG:
-	case RK808_INT_STS_REG1:
-	case RK808_INT_STS_REG2:
-		return true;
-	}
-
-	return false;
-}
-
-static bool rk817_is_volatile_reg(struct device *dev, unsigned int reg)
-{
-	/*
-	 * Notes:
-	 * - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but
-	 *   we don't use that feature.  It's better to cache.
-	 */
-
-	switch (reg) {
-	case RK817_SECONDS_REG ... RK817_WEEKS_REG:
-	case RK817_RTC_STATUS_REG:
-	case RK817_CODEC_DTOP_LPT_SRST:
-	case RK817_INT_STS_REG0:
-	case RK817_INT_STS_REG1:
-	case RK817_INT_STS_REG2:
-	case RK817_SYS_STS:
-		return true;
-	}
-
-	return true;
-}
-
-static const struct regmap_config rk818_regmap_config = {
-	.reg_bits = 8,
-	.val_bits = 8,
-	.max_register = RK818_USB_CTRL_REG,
-	.cache_type = REGCACHE_RBTREE,
-	.volatile_reg = rk808_is_volatile_reg,
-};
-
-static const struct regmap_config rk805_regmap_config = {
-	.reg_bits = 8,
-	.val_bits = 8,
-	.max_register = RK805_OFF_SOURCE_REG,
-	.cache_type = REGCACHE_RBTREE,
-	.volatile_reg = rk808_is_volatile_reg,
-};
-
-static const struct regmap_config rk808_regmap_config = {
-	.reg_bits = 8,
-	.val_bits = 8,
-	.max_register = RK808_IO_POL_REG,
-	.cache_type = REGCACHE_RBTREE,
-	.volatile_reg = rk808_is_volatile_reg,
-};
-
-static const struct regmap_config rk817_regmap_config = {
-	.reg_bits = 8,
-	.val_bits = 8,
-	.max_register = RK817_GPIO_INT_CFG,
-	.cache_type = REGCACHE_NONE,
-	.volatile_reg = rk817_is_volatile_reg,
-};
-
 static const struct resource rtc_resources[] = {
 	DEFINE_RES_IRQ(RK808_IRQ_RTC_ALARM),
 };
@@ -584,9 +501,9 @@ static int rk808_restart(struct sys_off_data *data)
 	return NOTIFY_DONE;
 }
 
-static void rk8xx_shutdown(struct i2c_client *client)
+void rk8xx_shutdown(struct device *dev)
 {
-	struct rk808 *rk808 = i2c_get_clientdata(client);
+	struct rk808 *rk808 = dev_get_drvdata(dev);
 	int ret;
 
 	switch (rk808->variant) {
@@ -607,64 +524,31 @@ static void rk8xx_shutdown(struct i2c_client *client)
 		return;
 	}
 	if (ret)
-		dev_warn(&client->dev,
+		dev_warn(dev,
 			 "Cannot switch to power down function\n");
 }
+EXPORT_SYMBOL_GPL(rk8xx_shutdown);
 
-static const struct of_device_id rk808_of_match[] = {
-	{ .compatible = "rockchip,rk805" },
-	{ .compatible = "rockchip,rk808" },
-	{ .compatible = "rockchip,rk809" },
-	{ .compatible = "rockchip,rk817" },
-	{ .compatible = "rockchip,rk818" },
-	{ },
-};
-MODULE_DEVICE_TABLE(of, rk808_of_match);
-
-static int rk808_probe(struct i2c_client *client,
-		       const struct i2c_device_id *id)
+int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap *regmap)
 {
-	struct device_node *np = client->dev.of_node;
 	struct rk808 *rk808;
 	const struct rk808_reg_data *pre_init_reg;
 	const struct mfd_cell *cells;
 	int nr_pre_init_regs;
 	int nr_cells;
-	int msb, lsb;
-	unsigned char pmic_id_msb, pmic_id_lsb;
 	int ret;
 	int i;
 
-	rk808 = devm_kzalloc(&client->dev, sizeof(*rk808), GFP_KERNEL);
+	rk808 = devm_kzalloc(dev, sizeof(*rk808), GFP_KERNEL);
 	if (!rk808)
 		return -ENOMEM;
-
-	if (of_device_is_compatible(np, "rockchip,rk817") ||
-	    of_device_is_compatible(np, "rockchip,rk809")) {
-		pmic_id_msb = RK817_ID_MSB;
-		pmic_id_lsb = RK817_ID_LSB;
-	} else {
-		pmic_id_msb = RK808_ID_MSB;
-		pmic_id_lsb = RK808_ID_LSB;
-	}
-
-	/* Read chip variant */
-	msb = i2c_smbus_read_byte_data(client, pmic_id_msb);
-	if (msb < 0)
-		return dev_err_probe(&client->dev, msb, "failed to read the chip id at 0x%x\n",
-				     RK808_ID_MSB);
-
-	lsb = i2c_smbus_read_byte_data(client, pmic_id_lsb);
-	if (lsb < 0)
-		return dev_err_probe(&client->dev, lsb, "failed to read the chip id at 0x%x\n",
-				     RK808_ID_LSB);
-
-	rk808->variant = ((msb << 8) | lsb) & RK8XX_ID_MSK;
-	dev_info(&client->dev, "chip id: 0x%x\n", (unsigned int)rk808->variant);
+	rk808->dev = dev;
+	rk808->variant = variant;
+	rk808->regmap = regmap;
+	dev_set_drvdata(dev, rk808);
 
 	switch (rk808->variant) {
 	case RK805_ID:
-		rk808->regmap_cfg = &rk805_regmap_config;
 		rk808->regmap_irq_chip = &rk805_irq_chip;
 		pre_init_reg = rk805_pre_init_reg;
 		nr_pre_init_regs = ARRAY_SIZE(rk805_pre_init_reg);
@@ -672,7 +556,6 @@ static int rk808_probe(struct i2c_client *client,
 		nr_cells = ARRAY_SIZE(rk805s);
 		break;
 	case RK808_ID:
-		rk808->regmap_cfg = &rk808_regmap_config;
 		rk808->regmap_irq_chip = &rk808_irq_chip;
 		pre_init_reg = rk808_pre_init_reg;
 		nr_pre_init_regs = ARRAY_SIZE(rk808_pre_init_reg);
@@ -680,7 +563,6 @@ static int rk808_probe(struct i2c_client *client,
 		nr_cells = ARRAY_SIZE(rk808s);
 		break;
 	case RK818_ID:
-		rk808->regmap_cfg = &rk818_regmap_config;
 		rk808->regmap_irq_chip = &rk818_irq_chip;
 		pre_init_reg = rk818_pre_init_reg;
 		nr_pre_init_regs = ARRAY_SIZE(rk818_pre_init_reg);
@@ -689,7 +571,6 @@ static int rk808_probe(struct i2c_client *client,
 		break;
 	case RK809_ID:
 	case RK817_ID:
-		rk808->regmap_cfg = &rk817_regmap_config;
 		rk808->regmap_irq_chip = &rk817_irq_chip;
 		pre_init_reg = rk817_pre_init_reg;
 		nr_pre_init_regs = ARRAY_SIZE(rk817_pre_init_reg);
@@ -697,27 +578,20 @@ static int rk808_probe(struct i2c_client *client,
 		nr_cells = ARRAY_SIZE(rk817s);
 		break;
 	default:
-		dev_err(&client->dev, "Unsupported RK8XX ID %lu\n",
-			rk808->variant);
+		dev_err(dev, "Unsupported RK8XX ID %lu\n", rk808->variant);
 		return -EINVAL;
 	}
 
-	rk808->dev = &client->dev;
-	i2c_set_clientdata(client, rk808);
+	dev_info(dev, "chip id: 0x%x\n", (unsigned int)rk808->variant);
 
-	rk808->regmap = devm_regmap_init_i2c(client, rk808->regmap_cfg);
-	if (IS_ERR(rk808->regmap))
-		return dev_err_probe(&client->dev, PTR_ERR(rk808->regmap),
-				     "regmap initialization failed\n");
+	if (!irq)
+		return dev_err_probe(dev, -EINVAL, "No interrupt support, no core IRQ\n");
 
-	if (!client->irq)
-		return dev_err_probe(&client->dev, -EINVAL, "No interrupt support, no core IRQ\n");
-
-	ret = devm_regmap_add_irq_chip(&client->dev, rk808->regmap, client->irq,
+	ret = devm_regmap_add_irq_chip(dev, rk808->regmap, irq,
 				       IRQF_ONESHOT, -1,
 				       rk808->regmap_irq_chip, &rk808->irq_data);
 	if (ret)
-		return dev_err_probe(&client->dev, ret, "Failed to add irq_chip\n");
+		return dev_err_probe(dev, ret, "Failed to add irq_chip\n");
 
 	for (i = 0; i < nr_pre_init_regs; i++) {
 		ret = regmap_update_bits(rk808->regmap,
@@ -725,45 +599,46 @@ static int rk808_probe(struct i2c_client *client,
 					pre_init_reg[i].mask,
 					pre_init_reg[i].value);
 		if (ret)
-			return dev_err_probe(&client->dev, ret, "0x%x write err\n",
+			return dev_err_probe(dev, ret, "0x%x write err\n",
 					     pre_init_reg[i].addr);
 	}
 
-	ret = devm_mfd_add_devices(&client->dev, PLATFORM_DEVID_NONE,
+	ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE,
 			      cells, nr_cells, NULL, 0,
 			      regmap_irq_get_domain(rk808->irq_data));
 	if (ret)
-		return dev_err_probe(&client->dev, ret, "failed to add MFD devices\n");
+		return dev_err_probe(dev, ret, "failed to add MFD devices\n");
 
-	if (of_property_read_bool(np, "rockchip,system-power-controller")) {
-		ret = devm_register_sys_off_handler(&client->dev,
+	if (device_property_read_bool(dev, "rockchip,system-power-controller")) {
+		ret = devm_register_sys_off_handler(dev,
 				    SYS_OFF_MODE_POWER_OFF_PREPARE, SYS_OFF_PRIO_HIGH,
 				    &rk808_power_off, rk808);
 		if (ret)
-			return dev_err_probe(&client->dev, ret,
+			return dev_err_probe(dev, ret,
 					     "failed to register poweroff handler\n");
 
 		switch (rk808->variant) {
 		case RK809_ID:
 		case RK817_ID:
-			ret = devm_register_sys_off_handler(&client->dev,
+			ret = devm_register_sys_off_handler(dev,
 							    SYS_OFF_MODE_RESTART, SYS_OFF_PRIO_HIGH,
 							    &rk808_restart, rk808);
 			if (ret)
-				dev_warn(&client->dev, "failed to register rst handler, %d\n", ret);
+				dev_warn(dev, "failed to register rst handler, %d\n", ret);
 			break;
 		default:
-			dev_dbg(&client->dev, "pmic controlled board reset not supported\n");
+			dev_dbg(dev, "pmic controlled board reset not supported\n");
 			break;
 		}
 	}
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(rk8xx_probe);
 
-static int __maybe_unused rk8xx_suspend(struct device *dev)
+int rk8xx_suspend(struct device *dev)
 {
-	struct rk808 *rk808 = i2c_get_clientdata(to_i2c_client(dev));
+	struct rk808 *rk808 = dev_get_drvdata(dev);
 	int ret = 0;
 
 	switch (rk808->variant) {
@@ -786,10 +661,11 @@ static int __maybe_unused rk8xx_suspend(struct device *dev)
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(rk8xx_suspend);
 
-static int __maybe_unused rk8xx_resume(struct device *dev)
+int rk8xx_resume(struct device *dev)
 {
-	struct rk808 *rk808 = i2c_get_clientdata(to_i2c_client(dev));
+	struct rk808 *rk808 = dev_get_drvdata(dev);
 	int ret = 0;
 
 	switch (rk808->variant) {
@@ -806,22 +682,10 @@ static int __maybe_unused rk8xx_resume(struct device *dev)
 
 	return ret;
 }
-static SIMPLE_DEV_PM_OPS(rk8xx_pm_ops, rk8xx_suspend, rk8xx_resume);
-
-static struct i2c_driver rk808_i2c_driver = {
-	.driver = {
-		.name = "rk808",
-		.of_match_table = rk808_of_match,
-		.pm = &rk8xx_pm_ops,
-	},
-	.probe    = rk808_probe,
-	.shutdown = rk8xx_shutdown,
-};
-
-module_i2c_driver(rk808_i2c_driver);
+EXPORT_SYMBOL_GPL(rk8xx_resume);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
 MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>");
 MODULE_AUTHOR("Wadim Egorov <w.egorov@phytec.de>");
-MODULE_DESCRIPTION("RK808/RK818 PMIC driver");
+MODULE_DESCRIPTION("RK8xx PMIC core");
diff --git a/drivers/mfd/rk8xx-i2c.c b/drivers/mfd/rk8xx-i2c.c
new file mode 100644
index 000000000000..aeb27afaad88
--- /dev/null
+++ b/drivers/mfd/rk8xx-i2c.c
@@ -0,0 +1,205 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * MFD i2c driver for Rockchip RK808/RK818
+ *
+ * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
+ *
+ * Author: Chris Zhong <zyw@rock-chips.com>
+ * Author: Zhang Qing <zhangqing@rock-chips.com>
+ *
+ * Copyright (C) 2016 PHYTEC Messtechnik GmbH
+ *
+ * Author: Wadim Egorov <w.egorov@phytec.de>
+ */
+
+#include <linux/i2c.h>
+#include <linux/mfd/rk808.h>
+
+static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+	/*
+	 * Notes:
+	 * - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but
+	 *   we don't use that feature.  It's better to cache.
+	 * - It's unlikely we care that RK808_DEVCTRL_REG is volatile since
+	 *   bits are cleared in case when we shutoff anyway, but better safe.
+	 */
+
+	switch (reg) {
+	case RK808_SECONDS_REG ... RK808_WEEKS_REG:
+	case RK808_RTC_STATUS_REG:
+	case RK808_VB_MON_REG:
+	case RK808_THERMAL_REG:
+	case RK808_DCDC_UV_STS_REG:
+	case RK808_LDO_UV_STS_REG:
+	case RK808_DCDC_PG_REG:
+	case RK808_LDO_PG_REG:
+	case RK808_DEVCTRL_REG:
+	case RK808_INT_STS_REG1:
+	case RK808_INT_STS_REG2:
+		return true;
+	}
+
+	return false;
+}
+
+static bool rk817_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+	/*
+	 * Notes:
+	 * - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but
+	 *   we don't use that feature.  It's better to cache.
+	 */
+
+	switch (reg) {
+	case RK817_SECONDS_REG ... RK817_WEEKS_REG:
+	case RK817_RTC_STATUS_REG:
+	case RK817_CODEC_DTOP_LPT_SRST:
+	case RK817_INT_STS_REG0:
+	case RK817_INT_STS_REG1:
+	case RK817_INT_STS_REG2:
+	case RK817_SYS_STS:
+		return true;
+	}
+
+	return true;
+}
+
+static const struct regmap_config rk818_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = RK818_USB_CTRL_REG,
+	.cache_type = REGCACHE_RBTREE,
+	.volatile_reg = rk808_is_volatile_reg,
+};
+
+static const struct regmap_config rk805_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = RK805_OFF_SOURCE_REG,
+	.cache_type = REGCACHE_RBTREE,
+	.volatile_reg = rk808_is_volatile_reg,
+};
+
+static const struct regmap_config rk808_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = RK808_IO_POL_REG,
+	.cache_type = REGCACHE_RBTREE,
+	.volatile_reg = rk808_is_volatile_reg,
+};
+
+static const struct regmap_config rk817_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = RK817_GPIO_INT_CFG,
+	.cache_type = REGCACHE_NONE,
+	.volatile_reg = rk817_is_volatile_reg,
+};
+
+static int rk8xx_i2c_get_variant(struct i2c_client *client)
+{
+	u8 pmic_id_msb, pmic_id_lsb;
+	int msb, lsb;
+
+	if (of_device_is_compatible(client->dev.of_node, "rockchip,rk817") ||
+	    of_device_is_compatible(client->dev.of_node, "rockchip,rk809")) {
+		pmic_id_msb = RK817_ID_MSB;
+		pmic_id_lsb = RK817_ID_LSB;
+	} else {
+		pmic_id_msb = RK808_ID_MSB;
+		pmic_id_lsb = RK808_ID_LSB;
+	}
+
+	/* Read chip variant */
+	msb = i2c_smbus_read_byte_data(client, pmic_id_msb);
+	if (msb < 0)
+		return dev_err_probe(&client->dev, msb, "failed to read the chip id at 0x%x\n",
+				     pmic_id_msb);
+
+	lsb = i2c_smbus_read_byte_data(client, pmic_id_lsb);
+	if (lsb < 0)
+		return dev_err_probe(&client->dev, lsb, "failed to read the chip id at 0x%x\n",
+				     pmic_id_lsb);
+
+	return ((msb << 8) | lsb) & RK8XX_ID_MSK;
+}
+
+static int rk8xx_i2c_probe(struct i2c_client *client)
+{
+	const struct regmap_config *regmap_cfg;
+	struct regmap *regmap;
+	int variant;
+
+	variant = rk8xx_i2c_get_variant(client);
+	if (variant < 0)
+		return variant;
+
+	switch (variant) {
+	case RK805_ID:
+		regmap_cfg = &rk805_regmap_config;
+		break;
+	case RK808_ID:
+		regmap_cfg = &rk808_regmap_config;
+		break;
+	case RK818_ID:
+		regmap_cfg = &rk818_regmap_config;
+		break;
+	case RK809_ID:
+	case RK817_ID:
+		regmap_cfg = &rk817_regmap_config;
+		break;
+	default:
+		return dev_err_probe(&client->dev, -EINVAL, "Unsupported RK8XX ID %x\n", variant);
+	}
+
+	regmap = devm_regmap_init_i2c(client, regmap_cfg);
+	if (IS_ERR(regmap))
+		return dev_err_probe(&client->dev, PTR_ERR(regmap),
+				     "regmap initialization failed\n");
+
+	return rk8xx_probe(&client->dev, variant, client->irq, regmap);
+}
+
+static void rk8xx_i2c_shutdown(struct i2c_client *client)
+{
+	rk8xx_shutdown(&client->dev);
+}
+
+static int __maybe_unused rk8xx_i2c_suspend(struct device *dev)
+{
+	return rk8xx_suspend(dev);
+}
+
+static int __maybe_unused rk8xx_i2c_resume(struct device *dev)
+{
+	return rk8xx_resume(dev);
+}
+static SIMPLE_DEV_PM_OPS(rk8xx_i2c_pm_ops, rk8xx_i2c_suspend, rk8xx_i2c_resume);
+
+static const struct of_device_id rk8xx_i2c_of_match[] = {
+	{ .compatible = "rockchip,rk805" },
+	{ .compatible = "rockchip,rk808" },
+	{ .compatible = "rockchip,rk809" },
+	{ .compatible = "rockchip,rk817" },
+	{ .compatible = "rockchip,rk818" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, rk8xx_i2c_of_match);
+
+static struct i2c_driver rk8xx_i2c_driver = {
+	.driver = {
+		.name = "rk8xx-i2c",
+		.of_match_table = rk8xx_i2c_of_match,
+		.pm = &rk8xx_i2c_pm_ops,
+	},
+	.probe_new = rk8xx_i2c_probe,
+	.shutdown  = rk8xx_i2c_shutdown,
+};
+module_i2c_driver(rk8xx_i2c_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
+MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>");
+MODULE_AUTHOR("Wadim Egorov <w.egorov@phytec.de>");
+MODULE_DESCRIPTION("RK8xx I2C PMIC driver");
diff --git a/include/linux/mfd/rk808.h b/include/linux/mfd/rk808.h
index 9937b068fa82..c5ddfb0e5353 100644
--- a/include/linux/mfd/rk808.h
+++ b/include/linux/mfd/rk808.h
@@ -703,4 +703,10 @@ struct rk808 {
 	const struct regmap_config	*regmap_cfg;
 	const struct regmap_irq_chip	*regmap_irq_chip;
 };
+
+void rk8xx_shutdown(struct device *dev);
+int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap *regmap);
+int rk8xx_suspend(struct device *dev);
+int rk8xx_resume(struct device *dev);
+
 #endif /* __LINUX_REGULATOR_RK808_H */
-- 
2.35.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

[PATCHv2 08/13] dt-bindings: mfd: add rk806 binding

[Sebastian Reichel]

Add DT binding document for Rockchip's RK806 PMIC.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 .../bindings/mfd/rockchip,rk806.yaml          | 388 ++++++++++++++++++
 1 file changed, 388 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/rockchip,rk806.yaml

diff --git a/Documentation/devicetree/bindings/mfd/rockchip,rk806.yaml b/Documentation/devicetree/bindings/mfd/rockchip,rk806.yaml
new file mode 100644
index 000000000000..80216440bd9f
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/rockchip,rk806.yaml
@@ -0,0 +1,388 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/rockchip,rk806.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: RK806 Power Management Integrated Circuit
+
+maintainers:
+  - Sebastian Reichel <sebastian.reichel@collabora.com>
+
+description: |
+  Rockchip RK806 series PMIC. This device consists of an spi or
+  i2c controlled MFD that includes multiple switchable regulators.
+
+properties:
+  compatible:
+    enum:
+      - rockchip,rk806
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  gpio-controller: true
+
+  '#gpio-cells':
+    const: 2
+
+  vcc1-supply:
+    description:
+      The input supply for dcdc-reg1.
+
+  vcc2-supply:
+    description:
+      The input supply for dcdc-reg2.
+
+  vcc3-supply:
+    description:
+      The input supply for dcdc-reg3.
+
+  vcc4-supply:
+    description:
+      The input supply for dcdc-reg4.
+
+  vcc5-supply:
+    description:
+      The input supply for dcdc-reg5.
+
+  vcc6-supply:
+    description:
+      The input supply for dcdc-reg6.
+
+  vcc7-supply:
+    description:
+      The input supply for dcdc-reg7.
+
+  vcc8-supply:
+    description:
+      The input supply for dcdc-reg8.
+
+  vcc9-supply:
+    description:
+      The input supply for dcdc-reg9.
+
+  vcc10-supply:
+    description:
+      The input supply for dcdc-reg10.
+
+  vcc11-supply:
+    description:
+      The input supply for pldo-reg1, pldo-reg2 and pldo-reg3.
+
+  vcc12-supply:
+    description:
+      The input supply for pldo-reg4 and pldo-reg5.
+
+  vcc13-supply:
+    description:
+      The input supply for nldo-reg1, nldo-reg2 and nldo-reg3.
+
+  vcc14-supply:
+    description:
+      The input supply for nldo-reg4 and nldo-reg5.
+
+  vcca-supply:
+    description:
+      The input supply for pldo-reg6.
+
+  regulators:
+    type: object
+    patternProperties:
+      "^(dcdc-reg([1-9]|10)|[pn]ldo_reg[1-6])$":
+        type: object
+        $ref: /schemas/regulator/regulator.yaml#
+    unevaluatedProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/pinctrl/rockchip.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/gpio/gpio.h>
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        pmic@0 {
+            compatible = "rockchip,rk806";
+            reg = <0x0>;
+
+            interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
+
+            vcc1-supply = <&vcc5v0_sys>;
+            vcc2-supply = <&vcc5v0_sys>;
+            vcc3-supply = <&vcc5v0_sys>;
+            vcc4-supply = <&vcc5v0_sys>;
+            vcc5-supply = <&vcc5v0_sys>;
+            vcc6-supply = <&vcc5v0_sys>;
+            vcc7-supply = <&vcc5v0_sys>;
+            vcc8-supply = <&vcc5v0_sys>;
+            vcc9-supply = <&vcc5v0_sys>;
+            vcc10-supply = <&vcc5v0_sys>;
+            vcc11-supply = <&vcc_2v0_pldo_s3>;
+            vcc12-supply = <&vcc5v0_sys>;
+            vcc13-supply = <&vcc5v0_sys>;
+            vcc14-supply = <&vcc_1v1_nldo_s3>;
+            vcca-supply = <&vcc5v0_sys>;
+
+            regulators {
+                vdd_gpu_s0: dcdc-reg1 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <550000>;
+                    regulator-max-microvolt = <950000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vdd_gpu_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                vdd_npu_s0: dcdc-reg2 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <550000>;
+                    regulator-max-microvolt = <950000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vdd_npu_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                vdd_log_s0: dcdc-reg3 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <750000>;
+                    regulator-max-microvolt = <750000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vdd_log_s0";
+                    regulator-state-mem {
+                        regulator-on-in-suspend;
+                        regulator-suspend-microvolt = <750000>;
+                    };
+                };
+
+                vdd_vdenc_s0: dcdc-reg4 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <550000>;
+                    regulator-max-microvolt = <950000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vdd_vdenc_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                vdd_gpu_mem_s0: dcdc-reg5 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <675000>;
+                    regulator-max-microvolt = <950000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vdd_gpu_mem_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                vdd_npu_mem_s0: dcdc-reg6 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <675000>;
+                    regulator-max-microvolt = <950000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vdd_npu_mem_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                vcc_2v0_pldo_s3: dcdc-reg7 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <2000000>;
+                    regulator-max-microvolt = <2000000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vdd_2v0_pldo_s3";
+                    regulator-state-mem {
+                        regulator-on-in-suspend;
+                        regulator-suspend-microvolt = <2000000>;
+                    };
+                };
+
+                vdd_vdenc_mem_s0: dcdc-reg8 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <675000>;
+                    regulator-max-microvolt = <950000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vdd_vdenc_mem_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                vdd2_ddr_s3: dcdc-reg9 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-name = "vdd2_ddr_s3";
+                    regulator-state-mem {
+                        regulator-on-in-suspend;
+                    };
+                };
+
+                vcc_1v1_nldo_s3: dcdc-reg10 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <1100000>;
+                    regulator-max-microvolt = <1100000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vcc_1v1_nldo_s3";
+                    regulator-state-mem {
+                        regulator-on-in-suspend;
+                        regulator-suspend-microvolt = <1100000>;
+                    };
+                };
+
+                avcc_1v8_s0: pldo-reg1 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <1800000>;
+                    regulator-max-microvolt = <1800000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "avcc_1v8_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                vdd1_1v8_ddr_s3: pldo-reg2 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <1800000>;
+                    regulator-max-microvolt = <1800000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vdd1_1v8_ddr_s3";
+                    regulator-state-mem {
+                        regulator-on-in-suspend;
+                        regulator-suspend-microvolt = <1800000>;
+                    };
+                };
+
+                vcc_1v8_s3: pldo-reg3 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <1800000>;
+                    regulator-max-microvolt = <1800000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vcc_1v8_s3";
+                    regulator-state-mem {
+                        regulator-on-in-suspend;
+                        regulator-suspend-microvolt = <1800000>;
+                    };
+                };
+
+                vcc_3v3_s0: pldo-reg4 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <3300000>;
+                    regulator-max-microvolt = <3300000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vcc_3v3_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                vccio_sd_s0: pldo-reg5 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <1800000>;
+                    regulator-max-microvolt = <3300000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vccio_sd_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                master_pldo6_s3: pldo-reg6 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <1800000>;
+                    regulator-max-microvolt = <1800000>;
+                    regulator-name = "master_pldo6_s3";
+                    regulator-state-mem {
+                        regulator-on-in-suspend;
+                        regulator-suspend-microvolt = <1800000>;
+                    };
+                };
+
+                vdd_0v75_s3: nldo-reg1 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <750000>;
+                    regulator-max-microvolt = <750000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vdd_0v75_s3";
+                    regulator-state-mem {
+                        regulator-on-in-suspend;
+                        regulator-suspend-microvolt = <750000>;
+                    };
+                };
+
+                vdd2l_0v9_ddr_s3: nldo-reg2 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <900000>;
+                    regulator-max-microvolt = <900000>;
+                    regulator-name = "vdd2l_0v9_ddr_s3";
+                    regulator-state-mem {
+                        regulator-on-in-suspend;
+                        regulator-suspend-microvolt = <900000>;
+                    };
+                };
+
+                master_nldo3: nldo-reg3 {
+                    regulator-name = "master_nldo3";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                avdd_0v75_s0: nldo-reg4 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <750000>;
+                    regulator-max-microvolt = <750000>;
+                    regulator-name = "avdd_0v75_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                vdd_0v85_s0: nldo-reg5 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <850000>;
+                    regulator-max-microvolt = <850000>;
+                    regulator-name = "vdd_0v85_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+            };
+        };
+    };
-- 
2.35.1

[PATCHv2 08/13] dt-bindings: mfd: add rk806 binding

[Sebastian Reichel]

Add DT binding document for Rockchip's RK806 PMIC.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 .../bindings/mfd/rockchip,rk806.yaml          | 388 ++++++++++++++++++
 1 file changed, 388 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/rockchip,rk806.yaml

diff --git a/Documentation/devicetree/bindings/mfd/rockchip,rk806.yaml b/Documentation/devicetree/bindings/mfd/rockchip,rk806.yaml
new file mode 100644
index 000000000000..80216440bd9f
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/rockchip,rk806.yaml
@@ -0,0 +1,388 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/rockchip,rk806.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: RK806 Power Management Integrated Circuit
+
+maintainers:
+  - Sebastian Reichel <sebastian.reichel@collabora.com>
+
+description: |
+  Rockchip RK806 series PMIC. This device consists of an spi or
+  i2c controlled MFD that includes multiple switchable regulators.
+
+properties:
+  compatible:
+    enum:
+      - rockchip,rk806
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  gpio-controller: true
+
+  '#gpio-cells':
+    const: 2
+
+  vcc1-supply:
+    description:
+      The input supply for dcdc-reg1.
+
+  vcc2-supply:
+    description:
+      The input supply for dcdc-reg2.
+
+  vcc3-supply:
+    description:
+      The input supply for dcdc-reg3.
+
+  vcc4-supply:
+    description:
+      The input supply for dcdc-reg4.
+
+  vcc5-supply:
+    description:
+      The input supply for dcdc-reg5.
+
+  vcc6-supply:
+    description:
+      The input supply for dcdc-reg6.
+
+  vcc7-supply:
+    description:
+      The input supply for dcdc-reg7.
+
+  vcc8-supply:
+    description:
+      The input supply for dcdc-reg8.
+
+  vcc9-supply:
+    description:
+      The input supply for dcdc-reg9.
+
+  vcc10-supply:
+    description:
+      The input supply for dcdc-reg10.
+
+  vcc11-supply:
+    description:
+      The input supply for pldo-reg1, pldo-reg2 and pldo-reg3.
+
+  vcc12-supply:
+    description:
+      The input supply for pldo-reg4 and pldo-reg5.
+
+  vcc13-supply:
+    description:
+      The input supply for nldo-reg1, nldo-reg2 and nldo-reg3.
+
+  vcc14-supply:
+    description:
+      The input supply for nldo-reg4 and nldo-reg5.
+
+  vcca-supply:
+    description:
+      The input supply for pldo-reg6.
+
+  regulators:
+    type: object
+    patternProperties:
+      "^(dcdc-reg([1-9]|10)|[pn]ldo_reg[1-6])$":
+        type: object
+        $ref: /schemas/regulator/regulator.yaml#
+    unevaluatedProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/pinctrl/rockchip.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/gpio/gpio.h>
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        pmic@0 {
+            compatible = "rockchip,rk806";
+            reg = <0x0>;
+
+            interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
+
+            vcc1-supply = <&vcc5v0_sys>;
+            vcc2-supply = <&vcc5v0_sys>;
+            vcc3-supply = <&vcc5v0_sys>;
+            vcc4-supply = <&vcc5v0_sys>;
+            vcc5-supply = <&vcc5v0_sys>;
+            vcc6-supply = <&vcc5v0_sys>;
+            vcc7-supply = <&vcc5v0_sys>;
+            vcc8-supply = <&vcc5v0_sys>;
+            vcc9-supply = <&vcc5v0_sys>;
+            vcc10-supply = <&vcc5v0_sys>;
+            vcc11-supply = <&vcc_2v0_pldo_s3>;
+            vcc12-supply = <&vcc5v0_sys>;
+            vcc13-supply = <&vcc5v0_sys>;
+            vcc14-supply = <&vcc_1v1_nldo_s3>;
+            vcca-supply = <&vcc5v0_sys>;
+
+            regulators {
+                vdd_gpu_s0: dcdc-reg1 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <550000>;
+                    regulator-max-microvolt = <950000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vdd_gpu_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                vdd_npu_s0: dcdc-reg2 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <550000>;
+                    regulator-max-microvolt = <950000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vdd_npu_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                vdd_log_s0: dcdc-reg3 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <750000>;
+                    regulator-max-microvolt = <750000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vdd_log_s0";
+                    regulator-state-mem {
+                        regulator-on-in-suspend;
+                        regulator-suspend-microvolt = <750000>;
+                    };
+                };
+
+                vdd_vdenc_s0: dcdc-reg4 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <550000>;
+                    regulator-max-microvolt = <950000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vdd_vdenc_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                vdd_gpu_mem_s0: dcdc-reg5 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <675000>;
+                    regulator-max-microvolt = <950000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vdd_gpu_mem_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                vdd_npu_mem_s0: dcdc-reg6 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <675000>;
+                    regulator-max-microvolt = <950000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vdd_npu_mem_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                vcc_2v0_pldo_s3: dcdc-reg7 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <2000000>;
+                    regulator-max-microvolt = <2000000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vdd_2v0_pldo_s3";
+                    regulator-state-mem {
+                        regulator-on-in-suspend;
+                        regulator-suspend-microvolt = <2000000>;
+                    };
+                };
+
+                vdd_vdenc_mem_s0: dcdc-reg8 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <675000>;
+                    regulator-max-microvolt = <950000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vdd_vdenc_mem_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                vdd2_ddr_s3: dcdc-reg9 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-name = "vdd2_ddr_s3";
+                    regulator-state-mem {
+                        regulator-on-in-suspend;
+                    };
+                };
+
+                vcc_1v1_nldo_s3: dcdc-reg10 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <1100000>;
+                    regulator-max-microvolt = <1100000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vcc_1v1_nldo_s3";
+                    regulator-state-mem {
+                        regulator-on-in-suspend;
+                        regulator-suspend-microvolt = <1100000>;
+                    };
+                };
+
+                avcc_1v8_s0: pldo-reg1 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <1800000>;
+                    regulator-max-microvolt = <1800000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "avcc_1v8_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                vdd1_1v8_ddr_s3: pldo-reg2 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <1800000>;
+                    regulator-max-microvolt = <1800000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vdd1_1v8_ddr_s3";
+                    regulator-state-mem {
+                        regulator-on-in-suspend;
+                        regulator-suspend-microvolt = <1800000>;
+                    };
+                };
+
+                vcc_1v8_s3: pldo-reg3 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <1800000>;
+                    regulator-max-microvolt = <1800000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vcc_1v8_s3";
+                    regulator-state-mem {
+                        regulator-on-in-suspend;
+                        regulator-suspend-microvolt = <1800000>;
+                    };
+                };
+
+                vcc_3v3_s0: pldo-reg4 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <3300000>;
+                    regulator-max-microvolt = <3300000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vcc_3v3_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                vccio_sd_s0: pldo-reg5 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <1800000>;
+                    regulator-max-microvolt = <3300000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vccio_sd_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                master_pldo6_s3: pldo-reg6 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <1800000>;
+                    regulator-max-microvolt = <1800000>;
+                    regulator-name = "master_pldo6_s3";
+                    regulator-state-mem {
+                        regulator-on-in-suspend;
+                        regulator-suspend-microvolt = <1800000>;
+                    };
+                };
+
+                vdd_0v75_s3: nldo-reg1 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <750000>;
+                    regulator-max-microvolt = <750000>;
+                    regulator-ramp-delay = <12500>;
+                    regulator-name = "vdd_0v75_s3";
+                    regulator-state-mem {
+                        regulator-on-in-suspend;
+                        regulator-suspend-microvolt = <750000>;
+                    };
+                };
+
+                vdd2l_0v9_ddr_s3: nldo-reg2 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <900000>;
+                    regulator-max-microvolt = <900000>;
+                    regulator-name = "vdd2l_0v9_ddr_s3";
+                    regulator-state-mem {
+                        regulator-on-in-suspend;
+                        regulator-suspend-microvolt = <900000>;
+                    };
+                };
+
+                master_nldo3: nldo-reg3 {
+                    regulator-name = "master_nldo3";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                avdd_0v75_s0: nldo-reg4 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <750000>;
+                    regulator-max-microvolt = <750000>;
+                    regulator-name = "avdd_0v75_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+
+                vdd_0v85_s0: nldo-reg5 {
+                    regulator-always-on;
+                    regulator-boot-on;
+                    regulator-min-microvolt = <850000>;
+                    regulator-max-microvolt = <850000>;
+                    regulator-name = "vdd_0v85_s0";
+                    regulator-state-mem {
+                        regulator-off-in-suspend;
+                    };
+                };
+            };
+        };
+    };
-- 
2.35.1


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Re: [PATCHv2 08/13] dt-bindings: mfd: add rk806 binding

[Krzysztof Kozlowski]

On 08/09/2022 02:31, Sebastian Reichel wrote:
> Add DT binding document for Rockchip's RK806 PMIC.
> 
> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
> ---

Thank you for your patch. There is something to discuss/improve.

> +  vcca-supply:
> +    description:
> +      The input supply for pldo-reg6.
> +
> +  regulators:
> +    type: object
> +    patternProperties:
> +      "^(dcdc-reg([1-9]|10)|[pn]ldo_reg[1-6])$":

You still have underscore in the pattern. This should pop-up during
test: please run `make dt_binding_check` (see
Documentation/devicetree/bindings/writing-schema.rst for instructions).


Best regards,
Krzysztof

Re: [PATCHv2 08/13] dt-bindings: mfd: add rk806 binding

[Krzysztof Kozlowski]

On 08/09/2022 02:31, Sebastian Reichel wrote:
> Add DT binding document for Rockchip's RK806 PMIC.
> 
> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
> ---

Thank you for your patch. There is something to discuss/improve.

> +  vcca-supply:
> +    description:
> +      The input supply for pldo-reg6.
> +
> +  regulators:
> +    type: object
> +    patternProperties:
> +      "^(dcdc-reg([1-9]|10)|[pn]ldo_reg[1-6])$":

You still have underscore in the pattern. This should pop-up during
test: please run `make dt_binding_check` (see
Documentation/devicetree/bindings/writing-schema.rst for instructions).


Best regards,
Krzysztof

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Re: [PATCHv2 08/13] dt-bindings: mfd: add rk806 binding

[Rob Herring]

On Thu, 08 Sep 2022 02:31:02 +0200, Sebastian Reichel wrote:
> Add DT binding document for Rockchip's RK806 PMIC.
> 
> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
> ---
>  .../bindings/mfd/rockchip,rk806.yaml          | 388 ++++++++++++++++++
>  1 file changed, 388 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/rockchip,rk806.yaml
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/mfd/rockchip,rk806.example.dtb: pmic@0: regulators: Unevaluated properties are not allowed ('nldo-reg1', 'nldo-reg2', 'nldo-reg3', 'nldo-reg4', 'nldo-reg5', 'pldo-reg1', 'pldo-reg2', 'pldo-reg3', 'pldo-reg4', 'pldo-reg5', 'pldo-reg6' were unexpected)
	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/mfd/rockchip,rk806.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/patch/

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit.

Re: [PATCHv2 08/13] dt-bindings: mfd: add rk806 binding

[Rob Herring]

On Thu, 08 Sep 2022 02:31:02 +0200, Sebastian Reichel wrote:
> Add DT binding document for Rockchip's RK806 PMIC.
> 
> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
> ---
>  .../bindings/mfd/rockchip,rk806.yaml          | 388 ++++++++++++++++++
>  1 file changed, 388 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/rockchip,rk806.yaml
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/mfd/rockchip,rk806.example.dtb: pmic@0: regulators: Unevaluated properties are not allowed ('nldo-reg1', 'nldo-reg2', 'nldo-reg3', 'nldo-reg4', 'nldo-reg5', 'pldo-reg1', 'pldo-reg2', 'pldo-reg3', 'pldo-reg4', 'pldo-reg5', 'pldo-reg6' were unexpected)
	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/mfd/rockchip,rk806.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/patch/

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit.


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[PATCHv2 09/13] mfd: rk8xx: add rk806 support

[Sebastian Reichel]

Add support for SPI connected rk806, which is used by the RK3588
evaluation boards. The PMIC is advertised to support I2C and SPI,
but the evaluation boards all use SPI. Thus only SPI support is
added here.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/mfd/Kconfig       |  14 ++
 drivers/mfd/Makefile      |   1 +
 drivers/mfd/rk8xx-core.c  |  67 ++++++-
 drivers/mfd/rk8xx-spi.c   | 128 ++++++++++++
 include/linux/mfd/rk808.h | 409 ++++++++++++++++++++++++++++++++++++++
 5 files changed, 617 insertions(+), 2 deletions(-)
 create mode 100644 drivers/mfd/rk8xx-spi.c

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index acb7133d6db6..e300727b4006 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -1160,6 +1160,20 @@ config MFD_RK8XX_I2C
 	  through I2C interface. The device supports multiple sub-devices
 	  including interrupts, RTC, LDO & DCDC regulators, and onkey.
 
+config MFD_RK8XX_SPI
+	tristate "Rockchip RK806 Power Management Chip"
+	depends on SPI && OF
+	select MFD_CORE
+	select REGMAP_SPI
+	select REGMAP_IRQ
+	select MFD_RK808
+	help
+	  If you say yes here you get support for the RK806 Power Management
+	  chips.
+	  This driver provides common support for accessing the device
+	  through SPI interface. The device supports multiple sub-devices
+	  including interrupts, LDO & DCDC regulators, and onkey.
+
 config MFD_RN5T618
 	tristate "Ricoh RN5T567/618 PMIC"
 	depends on I2C
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 25ac617a5e6b..e67d8d36d8a0 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -217,6 +217,7 @@ obj-$(CONFIG_MFD_NTXEC)		+= ntxec.o
 obj-$(CONFIG_MFD_RC5T583)	+= rc5t583.o rc5t583-irq.o
 obj-$(CONFIG_MFD_RK808)		+= rk8xx-core.o
 obj-$(CONFIG_MFD_RK8XX_I2C)	+= rk8xx-i2c.o
+obj-$(CONFIG_MFD_RK8XX_SPI)	+= rk8xx-spi.o
 obj-$(CONFIG_MFD_RN5T618)	+= rn5t618.o
 obj-$(CONFIG_MFD_SEC_CORE)	+= sec-core.o sec-irq.o
 obj-$(CONFIG_MFD_SYSCON)	+= syscon.o
diff --git a/drivers/mfd/rk8xx-core.c b/drivers/mfd/rk8xx-core.c
index d0ce17d98fdc..8ba2416178a9 100644
--- a/drivers/mfd/rk8xx-core.c
+++ b/drivers/mfd/rk8xx-core.c
@@ -39,6 +39,11 @@ static const struct resource rk805_key_resources[] = {
 	DEFINE_RES_IRQ(RK805_IRQ_PWRON_FALL),
 };
 
+static struct resource rk806_pwrkey_resources[] = {
+	DEFINE_RES_IRQ(RK806_IRQ_PWRON_FALL),
+	DEFINE_RES_IRQ(RK806_IRQ_PWRON_RISE),
+};
+
 static const struct resource rk817_pwrkey_resources[] = {
 	DEFINE_RES_IRQ(RK817_IRQ_PWRON_RISE),
 	DEFINE_RES_IRQ(RK817_IRQ_PWRON_FALL),
@@ -59,6 +64,16 @@ static const struct mfd_cell rk805s[] = {
 	},
 };
 
+static const struct mfd_cell rk806s[] = {
+	{ .name = "rk805-pinctrl", },
+	{
+		.name = "rk805-pwrkey",
+		.num_resources = ARRAY_SIZE(rk806_pwrkey_resources),
+		.resources = &rk806_pwrkey_resources[0],
+	},
+	{ .name = "rk808-regulator", },
+};
+
 static const struct mfd_cell rk808s[] = {
 	{ .name = "rk808-clkout", },
 	{ .name = "rk808-regulator", },
@@ -108,6 +123,12 @@ static const struct rk808_reg_data rk805_pre_init_reg[] = {
 	{RK805_THERMAL_REG, TEMP_HOTDIE_MSK, TEMP115C},
 };
 
+static const struct rk808_reg_data rk806_pre_init_reg[] = {
+	{RK806_GPIO_INT_CONFIG, RK806_INT_POL_MSK, RK806_INT_POL_L},
+	{RK806_SYS_CFG3, RK806_SLAVE_RESTART_FUN_MSK, RK806_SLAVE_RESTART_FUN_EN},
+	{RK806_SYS_OPTION, RK806_SYS_ENB2_2M_MSK, RK806_SYS_ENB2_2M_EN},
+};
+
 static const struct rk808_reg_data rk808_pre_init_reg[] = {
 	{ RK808_BUCK3_CONFIG_REG, BUCK_ILMIN_MASK,  BUCK_ILMIN_150MA },
 	{ RK808_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK,  BUCK_ILMIN_200MA },
@@ -258,6 +279,27 @@ static const struct regmap_irq rk805_irqs[] = {
 	},
 };
 
+static const struct regmap_irq rk806_irqs[] = {
+	/* INT_STS0 IRQs */
+	REGMAP_IRQ_REG(RK806_IRQ_PWRON_FALL, 0, RK806_INT_STS_PWRON_FALL),
+	REGMAP_IRQ_REG(RK806_IRQ_PWRON_RISE, 0, RK806_INT_STS_PWRON_RISE),
+	REGMAP_IRQ_REG(RK806_IRQ_PWRON, 0, RK806_INT_STS_PWRON),
+	REGMAP_IRQ_REG(RK806_IRQ_PWRON_LP, 0, RK806_INT_STS_PWRON_LP),
+	REGMAP_IRQ_REG(RK806_IRQ_HOTDIE, 0, RK806_INT_STS_HOTDIE),
+	REGMAP_IRQ_REG(RK806_IRQ_VDC_RISE, 0, RK806_INT_STS_VDC_RISE),
+	REGMAP_IRQ_REG(RK806_IRQ_VDC_FALL, 0, RK806_INT_STS_VDC_FALL),
+	REGMAP_IRQ_REG(RK806_IRQ_VB_LO, 0, RK806_INT_STS_VB_LO),
+	/* INT_STS1 IRQs */
+	REGMAP_IRQ_REG(RK806_IRQ_REV0, 1, RK806_INT_STS_REV0),
+	REGMAP_IRQ_REG(RK806_IRQ_REV1, 1, RK806_INT_STS_REV1),
+	REGMAP_IRQ_REG(RK806_IRQ_REV2, 1, RK806_INT_STS_REV2),
+	REGMAP_IRQ_REG(RK806_IRQ_CRC_ERROR, 1, RK806_INT_STS_CRC_ERROR),
+	REGMAP_IRQ_REG(RK806_IRQ_SLP3_GPIO, 1, RK806_INT_STS_SLP3_GPIO),
+	REGMAP_IRQ_REG(RK806_IRQ_SLP2_GPIO, 1, RK806_INT_STS_SLP2_GPIO),
+	REGMAP_IRQ_REG(RK806_IRQ_SLP1_GPIO, 1, RK806_INT_STS_SLP1_GPIO),
+	REGMAP_IRQ_REG(RK806_IRQ_WDT, 1, RK806_INT_STS_WDT),
+};
+
 static const struct regmap_irq rk808_irqs[] = {
 	/* INT_STS */
 	[RK808_IRQ_VOUT_LO] = {
@@ -408,6 +450,18 @@ static struct regmap_irq_chip rk805_irq_chip = {
 	.init_ack_masked = true,
 };
 
+static struct regmap_irq_chip rk806_irq_chip = {
+	.name = "rk806",
+	.irqs = rk806_irqs,
+	.num_irqs = ARRAY_SIZE(rk806_irqs),
+	.num_regs = 2,
+	.irq_reg_stride = 2,
+	.mask_base = RK806_INT_MSK0,
+	.status_base = RK806_INT_STS0,
+	.ack_base = RK806_INT_STS0,
+	.init_ack_masked = true,
+};
+
 static const struct regmap_irq_chip rk808_irq_chip = {
 	.name = "rk808",
 	.irqs = rk808_irqs,
@@ -534,6 +588,7 @@ int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap
 	struct rk808 *rk808;
 	const struct rk808_reg_data *pre_init_reg;
 	const struct mfd_cell *cells;
+	bool dual_support = false;
 	int nr_pre_init_regs;
 	int nr_cells;
 	int ret;
@@ -555,6 +610,14 @@ int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap
 		cells = rk805s;
 		nr_cells = ARRAY_SIZE(rk805s);
 		break;
+	case RK806_ID:
+		rk808->regmap_irq_chip = &rk806_irq_chip;
+		pre_init_reg = rk806_pre_init_reg;
+		nr_pre_init_regs = ARRAY_SIZE(rk806_pre_init_reg);
+		cells = rk806s;
+		nr_cells = ARRAY_SIZE(rk806s);
+		dual_support = true;
+		break;
 	case RK808_ID:
 		rk808->regmap_irq_chip = &rk808_irq_chip;
 		pre_init_reg = rk808_pre_init_reg;
@@ -588,7 +651,7 @@ int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap
 		return dev_err_probe(dev, -EINVAL, "No interrupt support, no core IRQ\n");
 
 	ret = devm_regmap_add_irq_chip(dev, rk808->regmap, irq,
-				       IRQF_ONESHOT, -1,
+				       IRQF_ONESHOT | (dual_support ? IRQF_SHARED : 0), -1,
 				       rk808->regmap_irq_chip, &rk808->irq_data);
 	if (ret)
 		return dev_err_probe(dev, ret, "Failed to add irq_chip\n");
@@ -603,7 +666,7 @@ int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap
 					     pre_init_reg[i].addr);
 	}
 
-	ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE,
+	ret = devm_mfd_add_devices(dev, dual_support ? PLATFORM_DEVID_AUTO : PLATFORM_DEVID_NONE,
 			      cells, nr_cells, NULL, 0,
 			      regmap_irq_get_domain(rk808->irq_data));
 	if (ret)
diff --git a/drivers/mfd/rk8xx-spi.c b/drivers/mfd/rk8xx-spi.c
new file mode 100644
index 000000000000..82f150afb9fe
--- /dev/null
+++ b/drivers/mfd/rk8xx-spi.c
@@ -0,0 +1,128 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * MFD spi driver for Rockchip RK806
+ *
+ * Copyright (c) 2021 Rockchip Electronics Co., Ltd.
+ *
+ * Author: Xu Shengfei <xsf@rock-chips.com>
+ */
+
+#include <linux/interrupt.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/rk808.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/spi/spi.h>
+
+static const struct regmap_range rk806_volatile_ranges[] = {
+	/* regmap_reg_range(RK806_INT_STS0, RK806_GPIO_INT_CONFIG), */
+	regmap_reg_range(RK806_POWER_EN0, RK806_POWER_EN5),
+	regmap_reg_range(0x70, 0x7a),
+};
+
+static const struct regmap_access_table rk806_volatile_table = {
+	.yes_ranges = rk806_volatile_ranges,
+	.n_yes_ranges = ARRAY_SIZE(rk806_volatile_ranges),
+};
+
+static const struct regmap_config rk806_regmap_config_spi = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.cache_type = REGCACHE_RBTREE,
+	.volatile_table = &rk806_volatile_table,
+};
+
+static int rk806_spi_bus_write(void *context, const void *data, size_t count)
+{
+	struct device *dev = context;
+	struct spi_device *spi = to_spi_device(dev);
+	const char *val = ((const char*) data) + 1;
+	char addr;
+	char buffer[4] = { 0 };
+
+	// TODO: support writing multiple values at once
+	if (count != 2) {
+		dev_err(&spi->dev, "regmap write err!\n");
+		return -EINVAL;
+	}
+
+	/* Copy address to read from into first element of SPI buffer. */
+	memcpy(&addr, data, sizeof(char));
+
+	buffer[0] = RK806_CMD_WRITE | (count - 2);
+	buffer[1] = addr;
+	buffer[2] = RK806_REG_H;
+	buffer[3] = val[0];
+
+	return spi_write(spi, &buffer, sizeof(buffer));
+}
+
+static int rk806_spi_bus_read(void *context,
+			      const void *reg,
+			      size_t reg_size,
+			      void *val,
+			      size_t val_size)
+{
+	struct device *dev = context;
+	struct spi_device *spi = to_spi_device(dev);
+	char addr;
+	char txbuf[3] = { 0 };
+
+	if (reg_size != sizeof(char) || val_size < 1)
+		return -EINVAL;
+
+	/* Copy address to read from into first element of SPI buffer. */
+	memcpy(&addr, reg, sizeof(char));
+
+	txbuf[0] = RK806_CMD_READ | (val_size - 1);
+	txbuf[1] = addr;
+	txbuf[2] = RK806_REG_H;
+
+	return spi_write_then_read(spi, txbuf, 3, val, val_size);
+}
+
+static const struct regmap_bus rk806_regmap_bus_spi = {
+	.write = rk806_spi_bus_write,
+	.read = rk806_spi_bus_read,
+	.reg_format_endian_default = REGMAP_ENDIAN_NATIVE,
+	.val_format_endian_default = REGMAP_ENDIAN_NATIVE,
+};
+
+static int rk8xx_spi_probe(struct spi_device *spi)
+{
+	struct regmap *regmap;
+
+	regmap = devm_regmap_init(&spi->dev, &rk806_regmap_bus_spi,
+				  &spi->dev, &rk806_regmap_config_spi);
+	if (IS_ERR(regmap))
+		return dev_err_probe(&spi->dev, PTR_ERR(regmap),
+				     "Failed to initialize register map\n");
+
+	return rk8xx_probe(&spi->dev, RK806_ID, spi->irq, regmap);
+}
+
+static const struct of_device_id rk8xx_spi_of_match[] = {
+	{ .compatible = "rockchip,rk806", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, rk8xx_spi_of_match);
+
+static const struct spi_device_id rk8xx_spi_id_table[] = {
+	{ "rk806", 0 },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(spi, rk8xx_spi_id_table);
+
+static struct spi_driver rk8xx_spi_driver = {
+	.driver		= {
+		.name	= "rk8xx-spi",
+		.of_match_table = rk8xx_spi_of_match,
+	},
+	.probe		= rk8xx_spi_probe,
+	.id_table	= rk8xx_spi_id_table,
+};
+module_spi_driver(rk8xx_spi_driver);
+
+MODULE_AUTHOR("Xu Shengfei <xsf@rock-chips.com>");
+MODULE_DESCRIPTION("RK8xx SPI PMIC driver");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/mfd/rk808.h b/include/linux/mfd/rk808.h
index c5ddfb0e5353..70f2ca745244 100644
--- a/include/linux/mfd/rk808.h
+++ b/include/linux/mfd/rk808.h
@@ -289,6 +289,414 @@ enum rk805_reg {
 #define RK805_INT_ALARM_EN		(1 << 3)
 #define RK805_INT_TIMER_EN		(1 << 2)
 
+/* RK806 */
+#define RK806_POWER_EN0			0x0
+#define RK806_POWER_EN1			0x1
+#define RK806_POWER_EN2			0x2
+#define RK806_POWER_EN3			0x3
+#define RK806_POWER_EN4			0x4
+#define RK806_POWER_EN5			0x5
+#define RK806_POWER_SLP_EN0		0x6
+#define RK806_POWER_SLP_EN1		0x7
+#define RK806_POWER_SLP_EN2		0x8
+#define RK806_POWER_DISCHRG_EN0		0x9
+#define RK806_POWER_DISCHRG_EN1		0xA
+#define RK806_POWER_DISCHRG_EN2		0xB
+#define RK806_BUCK_FB_CONFIG		0xC
+#define RK806_SLP_LP_CONFIG		0xD
+#define RK806_POWER_FPWM_EN0		0xE
+#define RK806_POWER_FPWM_EN1		0xF
+#define RK806_BUCK1_CONFIG		0x10
+#define RK806_BUCK2_CONFIG		0x11
+#define RK806_BUCK3_CONFIG		0x12
+#define RK806_BUCK4_CONFIG		0x13
+#define RK806_BUCK5_CONFIG		0x14
+#define RK806_BUCK6_CONFIG		0x15
+#define RK806_BUCK7_CONFIG		0x16
+#define RK806_BUCK8_CONFIG		0x17
+#define RK806_BUCK9_CONFIG		0x18
+#define RK806_BUCK10_CONFIG		0x19
+#define RK806_BUCK1_ON_VSEL		0x1A
+#define RK806_BUCK2_ON_VSEL		0x1B
+#define RK806_BUCK3_ON_VSEL		0x1C
+#define RK806_BUCK4_ON_VSEL		0x1D
+#define RK806_BUCK5_ON_VSEL		0x1E
+#define RK806_BUCK6_ON_VSEL		0x1F
+#define RK806_BUCK7_ON_VSEL		0x20
+#define RK806_BUCK8_ON_VSEL		0x21
+#define RK806_BUCK9_ON_VSEL		0x22
+#define RK806_BUCK10_ON_VSEL		0x23
+#define RK806_BUCK1_SLP_VSEL		0x24
+#define RK806_BUCK2_SLP_VSEL		0x25
+#define RK806_BUCK3_SLP_VSEL		0x26
+#define RK806_BUCK4_SLP_VSEL		0x27
+#define RK806_BUCK5_SLP_VSEL		0x28
+#define RK806_BUCK6_SLP_VSEL		0x29
+#define RK806_BUCK7_SLP_VSEL		0x2A
+#define RK806_BUCK8_SLP_VSEL		0x2B
+#define RK806_BUCK9_SLP_VSEL		0x2D
+#define RK806_BUCK10_SLP_VSEL		0x2E
+#define RK806_BUCK_DEBUG1		0x30
+#define RK806_BUCK_DEBUG2		0x31
+#define RK806_BUCK_DEBUG3		0x32
+#define RK806_BUCK_DEBUG4		0x33
+#define RK806_BUCK_DEBUG5		0x34
+#define RK806_BUCK_DEBUG6		0x35
+#define RK806_BUCK_DEBUG7		0x36
+#define RK806_BUCK_DEBUG8		0x37
+#define RK806_BUCK_DEBUG9		0x38
+#define RK806_BUCK_DEBUG10		0x39
+#define RK806_BUCK_DEBUG11		0x3A
+#define RK806_BUCK_DEBUG12		0x3B
+#define RK806_BUCK_DEBUG13		0x3C
+#define RK806_BUCK_DEBUG14		0x3D
+#define RK806_BUCK_DEBUG15		0x3E
+#define RK806_BUCK_DEBUG16		0x3F
+#define RK806_BUCK_DEBUG17		0x40
+#define RK806_BUCK_DEBUG18		0x41
+#define RK806_NLDO_IMAX			0x42
+#define RK806_NLDO1_ON_VSEL		0x43
+#define RK806_NLDO2_ON_VSEL		0x44
+#define RK806_NLDO3_ON_VSEL		0x45
+#define RK806_NLDO4_ON_VSEL		0x46
+#define RK806_NLDO5_ON_VSEL		0x47
+#define RK806_NLDO1_SLP_VSEL		0x48
+#define RK806_NLDO2_SLP_VSEL		0x49
+#define RK806_NLDO3_SLP_VSEL		0x4A
+#define RK806_NLDO4_SLP_VSEL		0x4B
+#define RK806_NLDO5_SLP_VSEL		0x4C
+#define RK806_PLDO_IMAX			0x4D
+#define RK806_PLDO1_ON_VSEL		0x4E
+#define RK806_PLDO2_ON_VSEL		0x4F
+#define RK806_PLDO3_ON_VSEL		0x50
+#define RK806_PLDO4_ON_VSEL		0x51
+#define RK806_PLDO5_ON_VSEL		0x52
+#define RK806_PLDO6_ON_VSEL		0x53
+#define RK806_PLDO1_SLP_VSEL		0x54
+#define RK806_PLDO2_SLP_VSEL		0x55
+#define RK806_PLDO3_SLP_VSEL		0x56
+#define RK806_PLDO4_SLP_VSEL		0x57
+#define RK806_PLDO5_SLP_VSEL		0x58
+#define RK806_PLDO6_SLP_VSEL		0x59
+#define RK806_CHIP_NAME			0x5A
+#define RK806_CHIP_VER			0x5B
+#define RK806_OTP_VER			0x5C
+#define RK806_SYS_STS			0x5D
+#define RK806_SYS_CFG0			0x5E
+#define RK806_SYS_CFG1			0x5F
+#define RK806_SYS_OPTION		0x61
+#define RK806_SLEEP_CONFIG0		0x62
+#define RK806_SLEEP_CONFIG1		0x63
+#define RK806_SLEEP_CTR_SEL0		0x64
+#define RK806_SLEEP_CTR_SEL1		0x65
+#define RK806_SLEEP_CTR_SEL2		0x66
+#define RK806_SLEEP_CTR_SEL3		0x67
+#define RK806_SLEEP_CTR_SEL4		0x68
+#define RK806_SLEEP_CTR_SEL5		0x69
+#define RK806_DVS_CTRL_SEL0		0x6A
+#define RK806_DVS_CTRL_SEL1		0x6B
+#define RK806_DVS_CTRL_SEL2		0x6C
+#define RK806_DVS_CTRL_SEL3		0x6D
+#define RK806_DVS_CTRL_SEL4		0x6E
+#define RK806_DVS_CTRL_SEL5		0x6F
+#define RK806_DVS_START_CTRL		0x70
+#define RK806_SLEEP_GPIO		0x71
+#define RK806_SYS_CFG3			0x72
+#define RK806_ON_SOURCE			0x74
+#define RK806_OFF_SOURCE		0x75
+#define RK806_PWRON_KEY			0x76
+#define RK806_INT_STS0			0x77
+#define RK806_INT_MSK0			0x78
+#define RK806_INT_STS1			0x79
+#define RK806_INT_MSK1			0x7A
+#define RK806_GPIO_INT_CONFIG		0x7B
+#define RK806_DATA_REG0			0x7C
+#define RK806_DATA_REG1			0x7D
+#define RK806_DATA_REG2			0x7E
+#define RK806_DATA_REG3			0x7F
+#define RK806_DATA_REG4			0x80
+#define RK806_DATA_REG5			0x81
+#define RK806_DATA_REG6			0x82
+#define RK806_DATA_REG7			0x83
+#define RK806_DATA_REG8			0x84
+#define RK806_DATA_REG9			0x85
+#define RK806_DATA_REG10		0x86
+#define RK806_DATA_REG11		0x87
+#define RK806_DATA_REG12		0x88
+#define RK806_DATA_REG13		0x89
+#define RK806_DATA_REG14		0x8A
+#define RK806_DATA_REG15		0x8B
+#define RK806_TM_REG			0x8C
+#define RK806_OTP_EN_REG		0x8D
+#define RK806_FUNC_OTP_EN_REG		0x8E
+#define RK806_TEST_REG1			0x8F
+#define RK806_TEST_REG2			0x90
+#define RK806_TEST_REG3			0x91
+#define RK806_TEST_REG4			0x92
+#define RK806_TEST_REG5			0x93
+#define RK806_BUCK_VSEL_OTP_REG0	0x94
+#define RK806_BUCK_VSEL_OTP_REG1	0x95
+#define RK806_BUCK_VSEL_OTP_REG2	0x96
+#define RK806_BUCK_VSEL_OTP_REG3	0x97
+#define RK806_BUCK_VSEL_OTP_REG4	0x98
+#define RK806_BUCK_VSEL_OTP_REG5	0x99
+#define RK806_BUCK_VSEL_OTP_REG6	0x9A
+#define RK806_BUCK_VSEL_OTP_REG7	0x9B
+#define RK806_BUCK_VSEL_OTP_REG8	0x9C
+#define RK806_BUCK_VSEL_OTP_REG9	0x9D
+#define RK806_NLDO1_VSEL_OTP_REG0	0x9E
+#define RK806_NLDO1_VSEL_OTP_REG1	0x9F
+#define RK806_NLDO1_VSEL_OTP_REG2	0xA0
+#define RK806_NLDO1_VSEL_OTP_REG3	0xA1
+#define RK806_NLDO1_VSEL_OTP_REG4	0xA2
+#define RK806_PLDO_VSEL_OTP_REG0	0xA3
+#define RK806_PLDO_VSEL_OTP_REG1	0xA4
+#define RK806_PLDO_VSEL_OTP_REG2	0xA5
+#define RK806_PLDO_VSEL_OTP_REG3	0xA6
+#define RK806_PLDO_VSEL_OTP_REG4	0xA7
+#define RK806_PLDO_VSEL_OTP_REG5	0xA8
+#define RK806_BUCK_EN_OTP_REG1		0xA9
+#define RK806_NLDO_EN_OTP_REG1		0xAA
+#define RK806_PLDO_EN_OTP_REG1		0xAB
+#define RK806_BUCK_FB_RES_OTP_REG1	0xAC
+#define RK806_OTP_RESEV_REG0		0xAD
+#define RK806_OTP_RESEV_REG1		0xAE
+#define RK806_OTP_RESEV_REG2		0xAF
+#define RK806_OTP_RESEV_REG3		0xB0
+#define RK806_OTP_RESEV_REG4		0xB1
+#define RK806_BUCK_SEQ_REG0		0xB2
+#define RK806_BUCK_SEQ_REG1		0xB3
+#define RK806_BUCK_SEQ_REG2		0xB4
+#define RK806_BUCK_SEQ_REG3		0xB5
+#define RK806_BUCK_SEQ_REG4		0xB6
+#define RK806_BUCK_SEQ_REG5		0xB7
+#define RK806_BUCK_SEQ_REG6		0xB8
+#define RK806_BUCK_SEQ_REG7		0xB9
+#define RK806_BUCK_SEQ_REG8		0xBA
+#define RK806_BUCK_SEQ_REG9		0xBB
+#define RK806_BUCK_SEQ_REG10		0xBC
+#define RK806_BUCK_SEQ_REG11		0xBD
+#define RK806_BUCK_SEQ_REG12		0xBE
+#define RK806_BUCK_SEQ_REG13		0xBF
+#define RK806_BUCK_SEQ_REG14		0xC0
+#define RK806_BUCK_SEQ_REG15		0xC1
+#define RK806_BUCK_SEQ_REG16		0xC2
+#define RK806_BUCK_SEQ_REG17		0xC3
+#define RK806_HK_TRIM_REG1		0xC4
+#define RK806_HK_TRIM_REG2		0xC5
+#define RK806_BUCK_REF_TRIM_REG1	0xC6
+#define RK806_BUCK_REF_TRIM_REG2	0xC7
+#define RK806_BUCK_REF_TRIM_REG3	0xC8
+#define RK806_BUCK_REF_TRIM_REG4	0xC9
+#define RK806_BUCK_REF_TRIM_REG5	0xCA
+#define RK806_BUCK_OSC_TRIM_REG1	0xCB
+#define RK806_BUCK_OSC_TRIM_REG2	0xCC
+#define RK806_BUCK_OSC_TRIM_REG3	0xCD
+#define RK806_BUCK_OSC_TRIM_REG4	0xCE
+#define RK806_BUCK_OSC_TRIM_REG5	0xCF
+#define RK806_BUCK_TRIM_ZCDIOS_REG1	0xD0
+#define RK806_BUCK_TRIM_ZCDIOS_REG2	0xD1
+#define RK806_NLDO_TRIM_REG1		0xD2
+#define RK806_NLDO_TRIM_REG2		0xD3
+#define RK806_NLDO_TRIM_REG3		0xD4
+#define RK806_PLDO_TRIM_REG1		0xD5
+#define RK806_PLDO_TRIM_REG2		0xD6
+#define RK806_PLDO_TRIM_REG3		0xD7
+#define RK806_TRIM_ICOMP_REG1		0xD8
+#define RK806_TRIM_ICOMP_REG2		0xD9
+#define RK806_EFUSE_CONTROL_REGH	0xDA
+#define RK806_FUSE_PROG_REG		0xDB
+#define RK806_MAIN_FSM_STS_REG		0xDD
+#define RK806_FSM_REG			0xDE
+#define RK806_TOP_RESEV_OFFR		0xEC
+#define RK806_TOP_RESEV_POR		0xED
+#define RK806_BUCK_VRSN_REG1		0xEE
+#define RK806_BUCK_VRSN_REG2		0xEF
+#define RK806_NLDO_RLOAD_SEL_REG1	0xF0
+#define RK806_PLDO_RLOAD_SEL_REG1	0xF1
+#define RK806_PLDO_RLOAD_SEL_REG2	0xF2
+#define RK806_BUCK_CMIN_MX_REG1		0xF3
+#define RK806_BUCK_CMIN_MX_REG2		0xF4
+#define RK806_BUCK_FREQ_SET_REG1	0xF5
+#define RK806_BUCK_FREQ_SET_REG2	0xF6
+#define RK806_BUCK_RS_MEABS_REG1	0xF7
+#define RK806_BUCK_RS_MEABS_REG2	0xF8
+#define RK806_BUCK_RS_ZDLEB_REG1	0xF9
+#define RK806_BUCK_RS_ZDLEB_REG2	0xFA
+#define RK806_BUCK_RSERVE_REG1		0xFB
+#define RK806_BUCK_RSERVE_REG2		0xFC
+#define RK806_BUCK_RSERVE_REG3		0xFD
+#define RK806_BUCK_RSERVE_REG4		0xFE
+#define RK806_BUCK_RSERVE_REG5		0xFF
+
+/* INT_STS Register field definitions */
+#define RK806_INT_STS_PWRON_FALL	BIT(0)
+#define RK806_INT_STS_PWRON_RISE	BIT(1)
+#define RK806_INT_STS_PWRON		BIT(2)
+#define RK806_INT_STS_PWRON_LP		BIT(3)
+#define RK806_INT_STS_HOTDIE		BIT(4)
+#define RK806_INT_STS_VDC_RISE		BIT(5)
+#define RK806_INT_STS_VDC_FALL		BIT(6)
+#define RK806_INT_STS_VB_LO		BIT(7)
+#define RK806_INT_STS_REV0		BIT(0)
+#define RK806_INT_STS_REV1		BIT(1)
+#define RK806_INT_STS_REV2		BIT(2)
+#define RK806_INT_STS_CRC_ERROR		BIT(3)
+#define RK806_INT_STS_SLP3_GPIO		BIT(4)
+#define RK806_INT_STS_SLP2_GPIO		BIT(5)
+#define RK806_INT_STS_SLP1_GPIO		BIT(6)
+#define RK806_INT_STS_WDT		BIT(7)
+
+/* spi command */
+#define RK806_CMD_READ			0
+#define RK806_CMD_WRITE			BIT(7)
+#define RK806_CMD_CRC_EN		BIT(6)
+#define RK806_CMD_CRC_DIS		0
+#define RK806_CMD_LEN_MSK		0x0f
+#define RK806_REG_H			0x00
+
+#define VERSION_AB		0x01
+
+enum rk806_reg_id {
+	RK806_ID_DCDC1 = 0,
+	RK806_ID_DCDC2,
+	RK806_ID_DCDC3,
+	RK806_ID_DCDC4,
+	RK806_ID_DCDC5,
+	RK806_ID_DCDC6,
+	RK806_ID_DCDC7,
+	RK806_ID_DCDC8,
+	RK806_ID_DCDC9,
+	RK806_ID_DCDC10,
+
+	RK806_ID_NLDO1,
+	RK806_ID_NLDO2,
+	RK806_ID_NLDO3,
+	RK806_ID_NLDO4,
+	RK806_ID_NLDO5,
+
+	RK806_ID_PLDO1,
+	RK806_ID_PLDO2,
+	RK806_ID_PLDO3,
+	RK806_ID_PLDO4,
+	RK806_ID_PLDO5,
+	RK806_ID_PLDO6,
+	RK806_ID_END,
+};
+
+/* Define the rk806 IRQ numbers */
+enum rk806_irqs {
+	/* INT_STS0 registers */
+	RK806_IRQ_PWRON_FALL,
+	RK806_IRQ_PWRON_RISE,
+	RK806_IRQ_PWRON,
+	RK806_IRQ_PWRON_LP,
+	RK806_IRQ_HOTDIE,
+	RK806_IRQ_VDC_RISE,
+	RK806_IRQ_VDC_FALL,
+	RK806_IRQ_VB_LO,
+
+	/* INT_STS0 registers */
+	RK806_IRQ_REV0,
+	RK806_IRQ_REV1,
+	RK806_IRQ_REV2,
+	RK806_IRQ_CRC_ERROR,
+	RK806_IRQ_SLP3_GPIO,
+	RK806_IRQ_SLP2_GPIO,
+	RK806_IRQ_SLP1_GPIO,
+	RK806_IRQ_WDT,
+};
+
+/* VCC1 low voltage threshold */
+enum rk806_lv_sel {
+	VB_LO_SEL_2800,
+	VB_LO_SEL_2900,
+	VB_LO_SEL_3000,
+	VB_LO_SEL_3100,
+	VB_LO_SEL_3200,
+	VB_LO_SEL_3300,
+	VB_LO_SEL_3400,
+	VB_LO_SEL_3500,
+};
+
+/* system shut down voltage select */
+enum rk806_uv_sel {
+	VB_UV_SEL_2700,
+	VB_UV_SEL_2800,
+	VB_UV_SEL_2900,
+	VB_UV_SEL_3000,
+	VB_UV_SEL_3100,
+	VB_UV_SEL_3200,
+	VB_UV_SEL_3300,
+	VB_UV_SEL_3400,
+};
+
+/* pin function */
+enum rk806_pwrctrl_fun {
+	PWRCTRL_NULL_FUN,
+	PWRCTRL_SLP_FUN,
+	PWRCTRL_POWOFF_FUN,
+	PWRCTRL_RST_FUN,
+	PWRCTRL_DVS_FUN,
+	PWRCTRL_GPIO_FUN,
+};
+
+/* pin pol */
+enum rk806_pin_level {
+	POL_LOW,
+	POL_HIGH,
+};
+
+enum rk806_vsel_ctr_sel {
+	CTR_BY_NO_EFFECT,
+	CTR_BY_PWRCTRL1,
+	CTR_BY_PWRCTRL2,
+	CTR_BY_PWRCTRL3,
+};
+
+enum rk806_dvs_ctr_sel {
+	CTR_SEL_NO_EFFECT,
+	CTR_SEL_DVS_START1,
+	CTR_SEL_DVS_START2,
+	CTR_SEL_DVS_START3,
+};
+
+enum rk806_pin_dr_sel {
+	RK806_PIN_INPUT,
+	RK806_PIN_OUTPUT,
+};
+
+#define RK806_INT_POL_MSK		BIT(1)
+#define RK806_INT_POL_H			BIT(1)
+#define RK806_INT_POL_L			0
+
+#define RK806_SLAVE_RESTART_FUN_MSK	BIT(1)
+#define RK806_SLAVE_RESTART_FUN_EN	BIT(1)
+#define RK806_SLAVE_RESTART_FUN_OFF	0
+
+#define RK806_SYS_ENB2_2M_MSK		BIT(1)
+#define RK806_SYS_ENB2_2M_EN		BIT(1)
+#define RK806_SYS_ENB2_2M_OFF		0
+
+enum rk806_int_fun {
+	RK806_INT_ONLY,
+	RK806_INT_ADN_WKUP,
+};
+
+enum rk806_dvs_mode {
+	RK806_DVS_NOT_SUPPORT,
+	RK806_DVS_START1,
+	RK806_DVS_START2,
+	RK806_DVS_START3,
+	RK806_DVS_PWRCTRL1,
+	RK806_DVS_PWRCTRL2,
+	RK806_DVS_PWRCTRL3,
+	RK806_DVS_START_PWRCTR1,
+	RK806_DVS_START_PWRCTR2,
+	RK806_DVS_START_PWRCTR3,
+	RK806_DVS_END,
+};
+
 /* RK808 IRQ Definitions */
 #define RK808_IRQ_VOUT_LO	0
 #define RK808_IRQ_VB_LO		1
@@ -689,6 +1097,7 @@ enum {
 
 enum {
 	RK805_ID = 0x8050,
+	RK806_ID = 0x8060,
 	RK808_ID = 0x0000,
 	RK809_ID = 0x8090,
 	RK817_ID = 0x8170,
-- 
2.35.1

[PATCHv2 09/13] mfd: rk8xx: add rk806 support

[Sebastian Reichel]

Add support for SPI connected rk806, which is used by the RK3588
evaluation boards. The PMIC is advertised to support I2C and SPI,
but the evaluation boards all use SPI. Thus only SPI support is
added here.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/mfd/Kconfig       |  14 ++
 drivers/mfd/Makefile      |   1 +
 drivers/mfd/rk8xx-core.c  |  67 ++++++-
 drivers/mfd/rk8xx-spi.c   | 128 ++++++++++++
 include/linux/mfd/rk808.h | 409 ++++++++++++++++++++++++++++++++++++++
 5 files changed, 617 insertions(+), 2 deletions(-)
 create mode 100644 drivers/mfd/rk8xx-spi.c

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index acb7133d6db6..e300727b4006 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -1160,6 +1160,20 @@ config MFD_RK8XX_I2C
 	  through I2C interface. The device supports multiple sub-devices
 	  including interrupts, RTC, LDO & DCDC regulators, and onkey.
 
+config MFD_RK8XX_SPI
+	tristate "Rockchip RK806 Power Management Chip"
+	depends on SPI && OF
+	select MFD_CORE
+	select REGMAP_SPI
+	select REGMAP_IRQ
+	select MFD_RK808
+	help
+	  If you say yes here you get support for the RK806 Power Management
+	  chips.
+	  This driver provides common support for accessing the device
+	  through SPI interface. The device supports multiple sub-devices
+	  including interrupts, LDO & DCDC regulators, and onkey.
+
 config MFD_RN5T618
 	tristate "Ricoh RN5T567/618 PMIC"
 	depends on I2C
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 25ac617a5e6b..e67d8d36d8a0 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -217,6 +217,7 @@ obj-$(CONFIG_MFD_NTXEC)		+= ntxec.o
 obj-$(CONFIG_MFD_RC5T583)	+= rc5t583.o rc5t583-irq.o
 obj-$(CONFIG_MFD_RK808)		+= rk8xx-core.o
 obj-$(CONFIG_MFD_RK8XX_I2C)	+= rk8xx-i2c.o
+obj-$(CONFIG_MFD_RK8XX_SPI)	+= rk8xx-spi.o
 obj-$(CONFIG_MFD_RN5T618)	+= rn5t618.o
 obj-$(CONFIG_MFD_SEC_CORE)	+= sec-core.o sec-irq.o
 obj-$(CONFIG_MFD_SYSCON)	+= syscon.o
diff --git a/drivers/mfd/rk8xx-core.c b/drivers/mfd/rk8xx-core.c
index d0ce17d98fdc..8ba2416178a9 100644
--- a/drivers/mfd/rk8xx-core.c
+++ b/drivers/mfd/rk8xx-core.c
@@ -39,6 +39,11 @@ static const struct resource rk805_key_resources[] = {
 	DEFINE_RES_IRQ(RK805_IRQ_PWRON_FALL),
 };
 
+static struct resource rk806_pwrkey_resources[] = {
+	DEFINE_RES_IRQ(RK806_IRQ_PWRON_FALL),
+	DEFINE_RES_IRQ(RK806_IRQ_PWRON_RISE),
+};
+
 static const struct resource rk817_pwrkey_resources[] = {
 	DEFINE_RES_IRQ(RK817_IRQ_PWRON_RISE),
 	DEFINE_RES_IRQ(RK817_IRQ_PWRON_FALL),
@@ -59,6 +64,16 @@ static const struct mfd_cell rk805s[] = {
 	},
 };
 
+static const struct mfd_cell rk806s[] = {
+	{ .name = "rk805-pinctrl", },
+	{
+		.name = "rk805-pwrkey",
+		.num_resources = ARRAY_SIZE(rk806_pwrkey_resources),
+		.resources = &rk806_pwrkey_resources[0],
+	},
+	{ .name = "rk808-regulator", },
+};
+
 static const struct mfd_cell rk808s[] = {
 	{ .name = "rk808-clkout", },
 	{ .name = "rk808-regulator", },
@@ -108,6 +123,12 @@ static const struct rk808_reg_data rk805_pre_init_reg[] = {
 	{RK805_THERMAL_REG, TEMP_HOTDIE_MSK, TEMP115C},
 };
 
+static const struct rk808_reg_data rk806_pre_init_reg[] = {
+	{RK806_GPIO_INT_CONFIG, RK806_INT_POL_MSK, RK806_INT_POL_L},
+	{RK806_SYS_CFG3, RK806_SLAVE_RESTART_FUN_MSK, RK806_SLAVE_RESTART_FUN_EN},
+	{RK806_SYS_OPTION, RK806_SYS_ENB2_2M_MSK, RK806_SYS_ENB2_2M_EN},
+};
+
 static const struct rk808_reg_data rk808_pre_init_reg[] = {
 	{ RK808_BUCK3_CONFIG_REG, BUCK_ILMIN_MASK,  BUCK_ILMIN_150MA },
 	{ RK808_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK,  BUCK_ILMIN_200MA },
@@ -258,6 +279,27 @@ static const struct regmap_irq rk805_irqs[] = {
 	},
 };
 
+static const struct regmap_irq rk806_irqs[] = {
+	/* INT_STS0 IRQs */
+	REGMAP_IRQ_REG(RK806_IRQ_PWRON_FALL, 0, RK806_INT_STS_PWRON_FALL),
+	REGMAP_IRQ_REG(RK806_IRQ_PWRON_RISE, 0, RK806_INT_STS_PWRON_RISE),
+	REGMAP_IRQ_REG(RK806_IRQ_PWRON, 0, RK806_INT_STS_PWRON),
+	REGMAP_IRQ_REG(RK806_IRQ_PWRON_LP, 0, RK806_INT_STS_PWRON_LP),
+	REGMAP_IRQ_REG(RK806_IRQ_HOTDIE, 0, RK806_INT_STS_HOTDIE),
+	REGMAP_IRQ_REG(RK806_IRQ_VDC_RISE, 0, RK806_INT_STS_VDC_RISE),
+	REGMAP_IRQ_REG(RK806_IRQ_VDC_FALL, 0, RK806_INT_STS_VDC_FALL),
+	REGMAP_IRQ_REG(RK806_IRQ_VB_LO, 0, RK806_INT_STS_VB_LO),
+	/* INT_STS1 IRQs */
+	REGMAP_IRQ_REG(RK806_IRQ_REV0, 1, RK806_INT_STS_REV0),
+	REGMAP_IRQ_REG(RK806_IRQ_REV1, 1, RK806_INT_STS_REV1),
+	REGMAP_IRQ_REG(RK806_IRQ_REV2, 1, RK806_INT_STS_REV2),
+	REGMAP_IRQ_REG(RK806_IRQ_CRC_ERROR, 1, RK806_INT_STS_CRC_ERROR),
+	REGMAP_IRQ_REG(RK806_IRQ_SLP3_GPIO, 1, RK806_INT_STS_SLP3_GPIO),
+	REGMAP_IRQ_REG(RK806_IRQ_SLP2_GPIO, 1, RK806_INT_STS_SLP2_GPIO),
+	REGMAP_IRQ_REG(RK806_IRQ_SLP1_GPIO, 1, RK806_INT_STS_SLP1_GPIO),
+	REGMAP_IRQ_REG(RK806_IRQ_WDT, 1, RK806_INT_STS_WDT),
+};
+
 static const struct regmap_irq rk808_irqs[] = {
 	/* INT_STS */
 	[RK808_IRQ_VOUT_LO] = {
@@ -408,6 +450,18 @@ static struct regmap_irq_chip rk805_irq_chip = {
 	.init_ack_masked = true,
 };
 
+static struct regmap_irq_chip rk806_irq_chip = {
+	.name = "rk806",
+	.irqs = rk806_irqs,
+	.num_irqs = ARRAY_SIZE(rk806_irqs),
+	.num_regs = 2,
+	.irq_reg_stride = 2,
+	.mask_base = RK806_INT_MSK0,
+	.status_base = RK806_INT_STS0,
+	.ack_base = RK806_INT_STS0,
+	.init_ack_masked = true,
+};
+
 static const struct regmap_irq_chip rk808_irq_chip = {
 	.name = "rk808",
 	.irqs = rk808_irqs,
@@ -534,6 +588,7 @@ int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap
 	struct rk808 *rk808;
 	const struct rk808_reg_data *pre_init_reg;
 	const struct mfd_cell *cells;
+	bool dual_support = false;
 	int nr_pre_init_regs;
 	int nr_cells;
 	int ret;
@@ -555,6 +610,14 @@ int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap
 		cells = rk805s;
 		nr_cells = ARRAY_SIZE(rk805s);
 		break;
+	case RK806_ID:
+		rk808->regmap_irq_chip = &rk806_irq_chip;
+		pre_init_reg = rk806_pre_init_reg;
+		nr_pre_init_regs = ARRAY_SIZE(rk806_pre_init_reg);
+		cells = rk806s;
+		nr_cells = ARRAY_SIZE(rk806s);
+		dual_support = true;
+		break;
 	case RK808_ID:
 		rk808->regmap_irq_chip = &rk808_irq_chip;
 		pre_init_reg = rk808_pre_init_reg;
@@ -588,7 +651,7 @@ int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap
 		return dev_err_probe(dev, -EINVAL, "No interrupt support, no core IRQ\n");
 
 	ret = devm_regmap_add_irq_chip(dev, rk808->regmap, irq,
-				       IRQF_ONESHOT, -1,
+				       IRQF_ONESHOT | (dual_support ? IRQF_SHARED : 0), -1,
 				       rk808->regmap_irq_chip, &rk808->irq_data);
 	if (ret)
 		return dev_err_probe(dev, ret, "Failed to add irq_chip\n");
@@ -603,7 +666,7 @@ int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap
 					     pre_init_reg[i].addr);
 	}
 
-	ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE,
+	ret = devm_mfd_add_devices(dev, dual_support ? PLATFORM_DEVID_AUTO : PLATFORM_DEVID_NONE,
 			      cells, nr_cells, NULL, 0,
 			      regmap_irq_get_domain(rk808->irq_data));
 	if (ret)
diff --git a/drivers/mfd/rk8xx-spi.c b/drivers/mfd/rk8xx-spi.c
new file mode 100644
index 000000000000..82f150afb9fe
--- /dev/null
+++ b/drivers/mfd/rk8xx-spi.c
@@ -0,0 +1,128 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * MFD spi driver for Rockchip RK806
+ *
+ * Copyright (c) 2021 Rockchip Electronics Co., Ltd.
+ *
+ * Author: Xu Shengfei <xsf@rock-chips.com>
+ */
+
+#include <linux/interrupt.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/rk808.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/spi/spi.h>
+
+static const struct regmap_range rk806_volatile_ranges[] = {
+	/* regmap_reg_range(RK806_INT_STS0, RK806_GPIO_INT_CONFIG), */
+	regmap_reg_range(RK806_POWER_EN0, RK806_POWER_EN5),
+	regmap_reg_range(0x70, 0x7a),
+};
+
+static const struct regmap_access_table rk806_volatile_table = {
+	.yes_ranges = rk806_volatile_ranges,
+	.n_yes_ranges = ARRAY_SIZE(rk806_volatile_ranges),
+};
+
+static const struct regmap_config rk806_regmap_config_spi = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.cache_type = REGCACHE_RBTREE,
+	.volatile_table = &rk806_volatile_table,
+};
+
+static int rk806_spi_bus_write(void *context, const void *data, size_t count)
+{
+	struct device *dev = context;
+	struct spi_device *spi = to_spi_device(dev);
+	const char *val = ((const char*) data) + 1;
+	char addr;
+	char buffer[4] = { 0 };
+
+	// TODO: support writing multiple values at once
+	if (count != 2) {
+		dev_err(&spi->dev, "regmap write err!\n");
+		return -EINVAL;
+	}
+
+	/* Copy address to read from into first element of SPI buffer. */
+	memcpy(&addr, data, sizeof(char));
+
+	buffer[0] = RK806_CMD_WRITE | (count - 2);
+	buffer[1] = addr;
+	buffer[2] = RK806_REG_H;
+	buffer[3] = val[0];
+
+	return spi_write(spi, &buffer, sizeof(buffer));
+}
+
+static int rk806_spi_bus_read(void *context,
+			      const void *reg,
+			      size_t reg_size,
+			      void *val,
+			      size_t val_size)
+{
+	struct device *dev = context;
+	struct spi_device *spi = to_spi_device(dev);
+	char addr;
+	char txbuf[3] = { 0 };
+
+	if (reg_size != sizeof(char) || val_size < 1)
+		return -EINVAL;
+
+	/* Copy address to read from into first element of SPI buffer. */
+	memcpy(&addr, reg, sizeof(char));
+
+	txbuf[0] = RK806_CMD_READ | (val_size - 1);
+	txbuf[1] = addr;
+	txbuf[2] = RK806_REG_H;
+
+	return spi_write_then_read(spi, txbuf, 3, val, val_size);
+}
+
+static const struct regmap_bus rk806_regmap_bus_spi = {
+	.write = rk806_spi_bus_write,
+	.read = rk806_spi_bus_read,
+	.reg_format_endian_default = REGMAP_ENDIAN_NATIVE,
+	.val_format_endian_default = REGMAP_ENDIAN_NATIVE,
+};
+
+static int rk8xx_spi_probe(struct spi_device *spi)
+{
+	struct regmap *regmap;
+
+	regmap = devm_regmap_init(&spi->dev, &rk806_regmap_bus_spi,
+				  &spi->dev, &rk806_regmap_config_spi);
+	if (IS_ERR(regmap))
+		return dev_err_probe(&spi->dev, PTR_ERR(regmap),
+				     "Failed to initialize register map\n");
+
+	return rk8xx_probe(&spi->dev, RK806_ID, spi->irq, regmap);
+}
+
+static const struct of_device_id rk8xx_spi_of_match[] = {
+	{ .compatible = "rockchip,rk806", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, rk8xx_spi_of_match);
+
+static const struct spi_device_id rk8xx_spi_id_table[] = {
+	{ "rk806", 0 },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(spi, rk8xx_spi_id_table);
+
+static struct spi_driver rk8xx_spi_driver = {
+	.driver		= {
+		.name	= "rk8xx-spi",
+		.of_match_table = rk8xx_spi_of_match,
+	},
+	.probe		= rk8xx_spi_probe,
+	.id_table	= rk8xx_spi_id_table,
+};
+module_spi_driver(rk8xx_spi_driver);
+
+MODULE_AUTHOR("Xu Shengfei <xsf@rock-chips.com>");
+MODULE_DESCRIPTION("RK8xx SPI PMIC driver");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/mfd/rk808.h b/include/linux/mfd/rk808.h
index c5ddfb0e5353..70f2ca745244 100644
--- a/include/linux/mfd/rk808.h
+++ b/include/linux/mfd/rk808.h
@@ -289,6 +289,414 @@ enum rk805_reg {
 #define RK805_INT_ALARM_EN		(1 << 3)
 #define RK805_INT_TIMER_EN		(1 << 2)
 
+/* RK806 */
+#define RK806_POWER_EN0			0x0
+#define RK806_POWER_EN1			0x1
+#define RK806_POWER_EN2			0x2
+#define RK806_POWER_EN3			0x3
+#define RK806_POWER_EN4			0x4
+#define RK806_POWER_EN5			0x5
+#define RK806_POWER_SLP_EN0		0x6
+#define RK806_POWER_SLP_EN1		0x7
+#define RK806_POWER_SLP_EN2		0x8
+#define RK806_POWER_DISCHRG_EN0		0x9
+#define RK806_POWER_DISCHRG_EN1		0xA
+#define RK806_POWER_DISCHRG_EN2		0xB
+#define RK806_BUCK_FB_CONFIG		0xC
+#define RK806_SLP_LP_CONFIG		0xD
+#define RK806_POWER_FPWM_EN0		0xE
+#define RK806_POWER_FPWM_EN1		0xF
+#define RK806_BUCK1_CONFIG		0x10
+#define RK806_BUCK2_CONFIG		0x11
+#define RK806_BUCK3_CONFIG		0x12
+#define RK806_BUCK4_CONFIG		0x13
+#define RK806_BUCK5_CONFIG		0x14
+#define RK806_BUCK6_CONFIG		0x15
+#define RK806_BUCK7_CONFIG		0x16
+#define RK806_BUCK8_CONFIG		0x17
+#define RK806_BUCK9_CONFIG		0x18
+#define RK806_BUCK10_CONFIG		0x19
+#define RK806_BUCK1_ON_VSEL		0x1A
+#define RK806_BUCK2_ON_VSEL		0x1B
+#define RK806_BUCK3_ON_VSEL		0x1C
+#define RK806_BUCK4_ON_VSEL		0x1D
+#define RK806_BUCK5_ON_VSEL		0x1E
+#define RK806_BUCK6_ON_VSEL		0x1F
+#define RK806_BUCK7_ON_VSEL		0x20
+#define RK806_BUCK8_ON_VSEL		0x21
+#define RK806_BUCK9_ON_VSEL		0x22
+#define RK806_BUCK10_ON_VSEL		0x23
+#define RK806_BUCK1_SLP_VSEL		0x24
+#define RK806_BUCK2_SLP_VSEL		0x25
+#define RK806_BUCK3_SLP_VSEL		0x26
+#define RK806_BUCK4_SLP_VSEL		0x27
+#define RK806_BUCK5_SLP_VSEL		0x28
+#define RK806_BUCK6_SLP_VSEL		0x29
+#define RK806_BUCK7_SLP_VSEL		0x2A
+#define RK806_BUCK8_SLP_VSEL		0x2B
+#define RK806_BUCK9_SLP_VSEL		0x2D
+#define RK806_BUCK10_SLP_VSEL		0x2E
+#define RK806_BUCK_DEBUG1		0x30
+#define RK806_BUCK_DEBUG2		0x31
+#define RK806_BUCK_DEBUG3		0x32
+#define RK806_BUCK_DEBUG4		0x33
+#define RK806_BUCK_DEBUG5		0x34
+#define RK806_BUCK_DEBUG6		0x35
+#define RK806_BUCK_DEBUG7		0x36
+#define RK806_BUCK_DEBUG8		0x37
+#define RK806_BUCK_DEBUG9		0x38
+#define RK806_BUCK_DEBUG10		0x39
+#define RK806_BUCK_DEBUG11		0x3A
+#define RK806_BUCK_DEBUG12		0x3B
+#define RK806_BUCK_DEBUG13		0x3C
+#define RK806_BUCK_DEBUG14		0x3D
+#define RK806_BUCK_DEBUG15		0x3E
+#define RK806_BUCK_DEBUG16		0x3F
+#define RK806_BUCK_DEBUG17		0x40
+#define RK806_BUCK_DEBUG18		0x41
+#define RK806_NLDO_IMAX			0x42
+#define RK806_NLDO1_ON_VSEL		0x43
+#define RK806_NLDO2_ON_VSEL		0x44
+#define RK806_NLDO3_ON_VSEL		0x45
+#define RK806_NLDO4_ON_VSEL		0x46
+#define RK806_NLDO5_ON_VSEL		0x47
+#define RK806_NLDO1_SLP_VSEL		0x48
+#define RK806_NLDO2_SLP_VSEL		0x49
+#define RK806_NLDO3_SLP_VSEL		0x4A
+#define RK806_NLDO4_SLP_VSEL		0x4B
+#define RK806_NLDO5_SLP_VSEL		0x4C
+#define RK806_PLDO_IMAX			0x4D
+#define RK806_PLDO1_ON_VSEL		0x4E
+#define RK806_PLDO2_ON_VSEL		0x4F
+#define RK806_PLDO3_ON_VSEL		0x50
+#define RK806_PLDO4_ON_VSEL		0x51
+#define RK806_PLDO5_ON_VSEL		0x52
+#define RK806_PLDO6_ON_VSEL		0x53
+#define RK806_PLDO1_SLP_VSEL		0x54
+#define RK806_PLDO2_SLP_VSEL		0x55
+#define RK806_PLDO3_SLP_VSEL		0x56
+#define RK806_PLDO4_SLP_VSEL		0x57
+#define RK806_PLDO5_SLP_VSEL		0x58
+#define RK806_PLDO6_SLP_VSEL		0x59
+#define RK806_CHIP_NAME			0x5A
+#define RK806_CHIP_VER			0x5B
+#define RK806_OTP_VER			0x5C
+#define RK806_SYS_STS			0x5D
+#define RK806_SYS_CFG0			0x5E
+#define RK806_SYS_CFG1			0x5F
+#define RK806_SYS_OPTION		0x61
+#define RK806_SLEEP_CONFIG0		0x62
+#define RK806_SLEEP_CONFIG1		0x63
+#define RK806_SLEEP_CTR_SEL0		0x64
+#define RK806_SLEEP_CTR_SEL1		0x65
+#define RK806_SLEEP_CTR_SEL2		0x66
+#define RK806_SLEEP_CTR_SEL3		0x67
+#define RK806_SLEEP_CTR_SEL4		0x68
+#define RK806_SLEEP_CTR_SEL5		0x69
+#define RK806_DVS_CTRL_SEL0		0x6A
+#define RK806_DVS_CTRL_SEL1		0x6B
+#define RK806_DVS_CTRL_SEL2		0x6C
+#define RK806_DVS_CTRL_SEL3		0x6D
+#define RK806_DVS_CTRL_SEL4		0x6E
+#define RK806_DVS_CTRL_SEL5		0x6F
+#define RK806_DVS_START_CTRL		0x70
+#define RK806_SLEEP_GPIO		0x71
+#define RK806_SYS_CFG3			0x72
+#define RK806_ON_SOURCE			0x74
+#define RK806_OFF_SOURCE		0x75
+#define RK806_PWRON_KEY			0x76
+#define RK806_INT_STS0			0x77
+#define RK806_INT_MSK0			0x78
+#define RK806_INT_STS1			0x79
+#define RK806_INT_MSK1			0x7A
+#define RK806_GPIO_INT_CONFIG		0x7B
+#define RK806_DATA_REG0			0x7C
+#define RK806_DATA_REG1			0x7D
+#define RK806_DATA_REG2			0x7E
+#define RK806_DATA_REG3			0x7F
+#define RK806_DATA_REG4			0x80
+#define RK806_DATA_REG5			0x81
+#define RK806_DATA_REG6			0x82
+#define RK806_DATA_REG7			0x83
+#define RK806_DATA_REG8			0x84
+#define RK806_DATA_REG9			0x85
+#define RK806_DATA_REG10		0x86
+#define RK806_DATA_REG11		0x87
+#define RK806_DATA_REG12		0x88
+#define RK806_DATA_REG13		0x89
+#define RK806_DATA_REG14		0x8A
+#define RK806_DATA_REG15		0x8B
+#define RK806_TM_REG			0x8C
+#define RK806_OTP_EN_REG		0x8D
+#define RK806_FUNC_OTP_EN_REG		0x8E
+#define RK806_TEST_REG1			0x8F
+#define RK806_TEST_REG2			0x90
+#define RK806_TEST_REG3			0x91
+#define RK806_TEST_REG4			0x92
+#define RK806_TEST_REG5			0x93
+#define RK806_BUCK_VSEL_OTP_REG0	0x94
+#define RK806_BUCK_VSEL_OTP_REG1	0x95
+#define RK806_BUCK_VSEL_OTP_REG2	0x96
+#define RK806_BUCK_VSEL_OTP_REG3	0x97
+#define RK806_BUCK_VSEL_OTP_REG4	0x98
+#define RK806_BUCK_VSEL_OTP_REG5	0x99
+#define RK806_BUCK_VSEL_OTP_REG6	0x9A
+#define RK806_BUCK_VSEL_OTP_REG7	0x9B
+#define RK806_BUCK_VSEL_OTP_REG8	0x9C
+#define RK806_BUCK_VSEL_OTP_REG9	0x9D
+#define RK806_NLDO1_VSEL_OTP_REG0	0x9E
+#define RK806_NLDO1_VSEL_OTP_REG1	0x9F
+#define RK806_NLDO1_VSEL_OTP_REG2	0xA0
+#define RK806_NLDO1_VSEL_OTP_REG3	0xA1
+#define RK806_NLDO1_VSEL_OTP_REG4	0xA2
+#define RK806_PLDO_VSEL_OTP_REG0	0xA3
+#define RK806_PLDO_VSEL_OTP_REG1	0xA4
+#define RK806_PLDO_VSEL_OTP_REG2	0xA5
+#define RK806_PLDO_VSEL_OTP_REG3	0xA6
+#define RK806_PLDO_VSEL_OTP_REG4	0xA7
+#define RK806_PLDO_VSEL_OTP_REG5	0xA8
+#define RK806_BUCK_EN_OTP_REG1		0xA9
+#define RK806_NLDO_EN_OTP_REG1		0xAA
+#define RK806_PLDO_EN_OTP_REG1		0xAB
+#define RK806_BUCK_FB_RES_OTP_REG1	0xAC
+#define RK806_OTP_RESEV_REG0		0xAD
+#define RK806_OTP_RESEV_REG1		0xAE
+#define RK806_OTP_RESEV_REG2		0xAF
+#define RK806_OTP_RESEV_REG3		0xB0
+#define RK806_OTP_RESEV_REG4		0xB1
+#define RK806_BUCK_SEQ_REG0		0xB2
+#define RK806_BUCK_SEQ_REG1		0xB3
+#define RK806_BUCK_SEQ_REG2		0xB4
+#define RK806_BUCK_SEQ_REG3		0xB5
+#define RK806_BUCK_SEQ_REG4		0xB6
+#define RK806_BUCK_SEQ_REG5		0xB7
+#define RK806_BUCK_SEQ_REG6		0xB8
+#define RK806_BUCK_SEQ_REG7		0xB9
+#define RK806_BUCK_SEQ_REG8		0xBA
+#define RK806_BUCK_SEQ_REG9		0xBB
+#define RK806_BUCK_SEQ_REG10		0xBC
+#define RK806_BUCK_SEQ_REG11		0xBD
+#define RK806_BUCK_SEQ_REG12		0xBE
+#define RK806_BUCK_SEQ_REG13		0xBF
+#define RK806_BUCK_SEQ_REG14		0xC0
+#define RK806_BUCK_SEQ_REG15		0xC1
+#define RK806_BUCK_SEQ_REG16		0xC2
+#define RK806_BUCK_SEQ_REG17		0xC3
+#define RK806_HK_TRIM_REG1		0xC4
+#define RK806_HK_TRIM_REG2		0xC5
+#define RK806_BUCK_REF_TRIM_REG1	0xC6
+#define RK806_BUCK_REF_TRIM_REG2	0xC7
+#define RK806_BUCK_REF_TRIM_REG3	0xC8
+#define RK806_BUCK_REF_TRIM_REG4	0xC9
+#define RK806_BUCK_REF_TRIM_REG5	0xCA
+#define RK806_BUCK_OSC_TRIM_REG1	0xCB
+#define RK806_BUCK_OSC_TRIM_REG2	0xCC
+#define RK806_BUCK_OSC_TRIM_REG3	0xCD
+#define RK806_BUCK_OSC_TRIM_REG4	0xCE
+#define RK806_BUCK_OSC_TRIM_REG5	0xCF
+#define RK806_BUCK_TRIM_ZCDIOS_REG1	0xD0
+#define RK806_BUCK_TRIM_ZCDIOS_REG2	0xD1
+#define RK806_NLDO_TRIM_REG1		0xD2
+#define RK806_NLDO_TRIM_REG2		0xD3
+#define RK806_NLDO_TRIM_REG3		0xD4
+#define RK806_PLDO_TRIM_REG1		0xD5
+#define RK806_PLDO_TRIM_REG2		0xD6
+#define RK806_PLDO_TRIM_REG3		0xD7
+#define RK806_TRIM_ICOMP_REG1		0xD8
+#define RK806_TRIM_ICOMP_REG2		0xD9
+#define RK806_EFUSE_CONTROL_REGH	0xDA
+#define RK806_FUSE_PROG_REG		0xDB
+#define RK806_MAIN_FSM_STS_REG		0xDD
+#define RK806_FSM_REG			0xDE
+#define RK806_TOP_RESEV_OFFR		0xEC
+#define RK806_TOP_RESEV_POR		0xED
+#define RK806_BUCK_VRSN_REG1		0xEE
+#define RK806_BUCK_VRSN_REG2		0xEF
+#define RK806_NLDO_RLOAD_SEL_REG1	0xF0
+#define RK806_PLDO_RLOAD_SEL_REG1	0xF1
+#define RK806_PLDO_RLOAD_SEL_REG2	0xF2
+#define RK806_BUCK_CMIN_MX_REG1		0xF3
+#define RK806_BUCK_CMIN_MX_REG2		0xF4
+#define RK806_BUCK_FREQ_SET_REG1	0xF5
+#define RK806_BUCK_FREQ_SET_REG2	0xF6
+#define RK806_BUCK_RS_MEABS_REG1	0xF7
+#define RK806_BUCK_RS_MEABS_REG2	0xF8
+#define RK806_BUCK_RS_ZDLEB_REG1	0xF9
+#define RK806_BUCK_RS_ZDLEB_REG2	0xFA
+#define RK806_BUCK_RSERVE_REG1		0xFB
+#define RK806_BUCK_RSERVE_REG2		0xFC
+#define RK806_BUCK_RSERVE_REG3		0xFD
+#define RK806_BUCK_RSERVE_REG4		0xFE
+#define RK806_BUCK_RSERVE_REG5		0xFF
+
+/* INT_STS Register field definitions */
+#define RK806_INT_STS_PWRON_FALL	BIT(0)
+#define RK806_INT_STS_PWRON_RISE	BIT(1)
+#define RK806_INT_STS_PWRON		BIT(2)
+#define RK806_INT_STS_PWRON_LP		BIT(3)
+#define RK806_INT_STS_HOTDIE		BIT(4)
+#define RK806_INT_STS_VDC_RISE		BIT(5)
+#define RK806_INT_STS_VDC_FALL		BIT(6)
+#define RK806_INT_STS_VB_LO		BIT(7)
+#define RK806_INT_STS_REV0		BIT(0)
+#define RK806_INT_STS_REV1		BIT(1)
+#define RK806_INT_STS_REV2		BIT(2)
+#define RK806_INT_STS_CRC_ERROR		BIT(3)
+#define RK806_INT_STS_SLP3_GPIO		BIT(4)
+#define RK806_INT_STS_SLP2_GPIO		BIT(5)
+#define RK806_INT_STS_SLP1_GPIO		BIT(6)
+#define RK806_INT_STS_WDT		BIT(7)
+
+/* spi command */
+#define RK806_CMD_READ			0
+#define RK806_CMD_WRITE			BIT(7)
+#define RK806_CMD_CRC_EN		BIT(6)
+#define RK806_CMD_CRC_DIS		0
+#define RK806_CMD_LEN_MSK		0x0f
+#define RK806_REG_H			0x00
+
+#define VERSION_AB		0x01
+
+enum rk806_reg_id {
+	RK806_ID_DCDC1 = 0,
+	RK806_ID_DCDC2,
+	RK806_ID_DCDC3,
+	RK806_ID_DCDC4,
+	RK806_ID_DCDC5,
+	RK806_ID_DCDC6,
+	RK806_ID_DCDC7,
+	RK806_ID_DCDC8,
+	RK806_ID_DCDC9,
+	RK806_ID_DCDC10,
+
+	RK806_ID_NLDO1,
+	RK806_ID_NLDO2,
+	RK806_ID_NLDO3,
+	RK806_ID_NLDO4,
+	RK806_ID_NLDO5,
+
+	RK806_ID_PLDO1,
+	RK806_ID_PLDO2,
+	RK806_ID_PLDO3,
+	RK806_ID_PLDO4,
+	RK806_ID_PLDO5,
+	RK806_ID_PLDO6,
+	RK806_ID_END,
+};
+
+/* Define the rk806 IRQ numbers */
+enum rk806_irqs {
+	/* INT_STS0 registers */
+	RK806_IRQ_PWRON_FALL,
+	RK806_IRQ_PWRON_RISE,
+	RK806_IRQ_PWRON,
+	RK806_IRQ_PWRON_LP,
+	RK806_IRQ_HOTDIE,
+	RK806_IRQ_VDC_RISE,
+	RK806_IRQ_VDC_FALL,
+	RK806_IRQ_VB_LO,
+
+	/* INT_STS0 registers */
+	RK806_IRQ_REV0,
+	RK806_IRQ_REV1,
+	RK806_IRQ_REV2,
+	RK806_IRQ_CRC_ERROR,
+	RK806_IRQ_SLP3_GPIO,
+	RK806_IRQ_SLP2_GPIO,
+	RK806_IRQ_SLP1_GPIO,
+	RK806_IRQ_WDT,
+};
+
+/* VCC1 low voltage threshold */
+enum rk806_lv_sel {
+	VB_LO_SEL_2800,
+	VB_LO_SEL_2900,
+	VB_LO_SEL_3000,
+	VB_LO_SEL_3100,
+	VB_LO_SEL_3200,
+	VB_LO_SEL_3300,
+	VB_LO_SEL_3400,
+	VB_LO_SEL_3500,
+};
+
+/* system shut down voltage select */
+enum rk806_uv_sel {
+	VB_UV_SEL_2700,
+	VB_UV_SEL_2800,
+	VB_UV_SEL_2900,
+	VB_UV_SEL_3000,
+	VB_UV_SEL_3100,
+	VB_UV_SEL_3200,
+	VB_UV_SEL_3300,
+	VB_UV_SEL_3400,
+};
+
+/* pin function */
+enum rk806_pwrctrl_fun {
+	PWRCTRL_NULL_FUN,
+	PWRCTRL_SLP_FUN,
+	PWRCTRL_POWOFF_FUN,
+	PWRCTRL_RST_FUN,
+	PWRCTRL_DVS_FUN,
+	PWRCTRL_GPIO_FUN,
+};
+
+/* pin pol */
+enum rk806_pin_level {
+	POL_LOW,
+	POL_HIGH,
+};
+
+enum rk806_vsel_ctr_sel {
+	CTR_BY_NO_EFFECT,
+	CTR_BY_PWRCTRL1,
+	CTR_BY_PWRCTRL2,
+	CTR_BY_PWRCTRL3,
+};
+
+enum rk806_dvs_ctr_sel {
+	CTR_SEL_NO_EFFECT,
+	CTR_SEL_DVS_START1,
+	CTR_SEL_DVS_START2,
+	CTR_SEL_DVS_START3,
+};
+
+enum rk806_pin_dr_sel {
+	RK806_PIN_INPUT,
+	RK806_PIN_OUTPUT,
+};
+
+#define RK806_INT_POL_MSK		BIT(1)
+#define RK806_INT_POL_H			BIT(1)
+#define RK806_INT_POL_L			0
+
+#define RK806_SLAVE_RESTART_FUN_MSK	BIT(1)
+#define RK806_SLAVE_RESTART_FUN_EN	BIT(1)
+#define RK806_SLAVE_RESTART_FUN_OFF	0
+
+#define RK806_SYS_ENB2_2M_MSK		BIT(1)
+#define RK806_SYS_ENB2_2M_EN		BIT(1)
+#define RK806_SYS_ENB2_2M_OFF		0
+
+enum rk806_int_fun {
+	RK806_INT_ONLY,
+	RK806_INT_ADN_WKUP,
+};
+
+enum rk806_dvs_mode {
+	RK806_DVS_NOT_SUPPORT,
+	RK806_DVS_START1,
+	RK806_DVS_START2,
+	RK806_DVS_START3,
+	RK806_DVS_PWRCTRL1,
+	RK806_DVS_PWRCTRL2,
+	RK806_DVS_PWRCTRL3,
+	RK806_DVS_START_PWRCTR1,
+	RK806_DVS_START_PWRCTR2,
+	RK806_DVS_START_PWRCTR3,
+	RK806_DVS_END,
+};
+
 /* RK808 IRQ Definitions */
 #define RK808_IRQ_VOUT_LO	0
 #define RK808_IRQ_VB_LO		1
@@ -689,6 +1097,7 @@ enum {
 
 enum {
 	RK805_ID = 0x8050,
+	RK806_ID = 0x8060,
 	RK808_ID = 0x0000,
 	RK809_ID = 0x8090,
 	RK817_ID = 0x8170,
-- 
2.35.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

[PATCHv2 10/13] pinctrl: rk805: add rk806 pinctrl support

[Sebastian Reichel]

Add support for rk806 dvs pinctrl to the existing rk805
driver.

This has been implemented using shengfei Xu's rk806
specific driver from the vendor tree as reference.

Co-Developed-by: shengfei Xu <xsf@rock-chips.com>
Signed-off-by: shengfei Xu <xsf@rock-chips.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/pinctrl/pinctrl-rk805.c | 189 ++++++++++++++++++++++++++++----
 1 file changed, 168 insertions(+), 21 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-rk805.c b/drivers/pinctrl/pinctrl-rk805.c
index 7c1f7408fb9a..2639a9ee82cd 100644
--- a/drivers/pinctrl/pinctrl-rk805.c
+++ b/drivers/pinctrl/pinctrl-rk805.c
@@ -1,10 +1,12 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
- * Pinctrl driver for Rockchip RK805 PMIC
+ * Pinctrl driver for Rockchip RK805/RK806 PMIC
  *
  * Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd
+ * Copyright (c) 2021 Rockchip Electronics Co., Ltd.
  *
  * Author: Joseph Chen <chenjh@rock-chips.com>
+ * Author: Xu Shengfei <xsf@rock-chips.com>
  *
  * Based on the pinctrl-as3722 driver
  */
@@ -44,6 +46,7 @@ struct rk805_pin_group {
 
 /*
  * @reg: gpio setting register;
+ * @fun_reg: functions select register;
  * @fun_mask: functions select mask value, when set is gpio;
  * @dir_mask: input or output mask value, when set is output, otherwise input;
  * @val_mask: gpio set value, when set is level high, otherwise low;
@@ -56,6 +59,7 @@ struct rk805_pin_group {
  */
 struct rk805_pin_config {
 	u8 reg;
+	u8 fun_reg;
 	u8 fun_msk;
 	u8 dir_msk;
 	u8 val_msk;
@@ -80,22 +84,50 @@ enum rk805_pinmux_option {
 	RK805_PINMUX_GPIO,
 };
 
+enum rk806_pinmux_option {
+	RK806_PINMUX_FUN0 = 0,
+	RK806_PINMUX_FUN1,
+	RK806_PINMUX_FUN2,
+	RK806_PINMUX_FUN3,
+	RK806_PINMUX_FUN4,
+	RK806_PINMUX_FUN5,
+};
+
 enum {
 	RK805_GPIO0,
 	RK805_GPIO1,
 };
 
+enum {
+	RK806_GPIO_DVS1,
+	RK806_GPIO_DVS2,
+	RK806_GPIO_DVS3
+};
+
 static const char *const rk805_gpio_groups[] = {
 	"gpio0",
 	"gpio1",
 };
 
+static const char *const rk806_gpio_groups[] = {
+	"gpio_pwrctrl1",
+	"gpio_pwrctrl2",
+	"gpio_pwrctrl3",
+};
+
 /* RK805: 2 output only GPIOs */
 static const struct pinctrl_pin_desc rk805_pins_desc[] = {
 	PINCTRL_PIN(RK805_GPIO0, "gpio0"),
 	PINCTRL_PIN(RK805_GPIO1, "gpio1"),
 };
 
+/* RK806 */
+static const struct pinctrl_pin_desc rk806_pins_desc[] = {
+	PINCTRL_PIN(RK806_GPIO_DVS1, "gpio_pwrctrl1"),
+	PINCTRL_PIN(RK806_GPIO_DVS2, "gpio_pwrctrl2"),
+	PINCTRL_PIN(RK806_GPIO_DVS3, "gpio_pwrctrl3"),
+};
+
 static const struct rk805_pin_function rk805_pin_functions[] = {
 	{
 		.name = "gpio",
@@ -105,6 +137,45 @@ static const struct rk805_pin_function rk805_pin_functions[] = {
 	},
 };
 
+static const struct rk805_pin_function rk806_pin_functions[] = {
+	{
+		.name = "pin_fun0",
+		.groups = rk806_gpio_groups,
+		.ngroups = ARRAY_SIZE(rk806_gpio_groups),
+		.mux_option = RK806_PINMUX_FUN0,
+	},
+	{
+		.name = "pin_fun1",
+		.groups = rk806_gpio_groups,
+		.ngroups = ARRAY_SIZE(rk806_gpio_groups),
+		.mux_option = RK806_PINMUX_FUN1,
+	},
+	{
+		.name = "pin_fun2",
+		.groups = rk806_gpio_groups,
+		.ngroups = ARRAY_SIZE(rk806_gpio_groups),
+		.mux_option = RK806_PINMUX_FUN2,
+	},
+	{
+		.name = "pin_fun3",
+		.groups = rk806_gpio_groups,
+		.ngroups = ARRAY_SIZE(rk806_gpio_groups),
+		.mux_option = RK806_PINMUX_FUN3,
+	},
+	{
+		.name = "pin_fun4",
+		.groups = rk806_gpio_groups,
+		.ngroups = ARRAY_SIZE(rk806_gpio_groups),
+		.mux_option = RK806_PINMUX_FUN4,
+	},
+	{
+		.name = "pin_fun5",
+		.groups = rk806_gpio_groups,
+		.ngroups = ARRAY_SIZE(rk806_gpio_groups),
+		.mux_option = RK806_PINMUX_FUN5,
+	},
+};
+
 static const struct rk805_pin_group rk805_pin_groups[] = {
 	{
 		.name = "gpio0",
@@ -118,6 +189,24 @@ static const struct rk805_pin_group rk805_pin_groups[] = {
 	},
 };
 
+static const struct rk805_pin_group rk806_pin_groups[] = {
+	{
+		.name = "gpio_pwrctrl1",
+		.pins = { RK806_GPIO_DVS1 },
+		.npins = 1,
+	},
+	{
+		.name = "gpio_pwrctrl2",
+		.pins = { RK806_GPIO_DVS2 },
+		.npins = 1,
+	},
+	{
+		.name = "gpio_pwrctrl3",
+		.pins = { RK806_GPIO_DVS3 },
+		.npins = 1,
+	}
+};
+
 #define RK805_GPIO0_VAL_MSK	BIT(0)
 #define RK805_GPIO1_VAL_MSK	BIT(1)
 
@@ -132,6 +221,40 @@ static const struct rk805_pin_config rk805_gpio_cfgs[] = {
 	},
 };
 
+#define RK806_PWRCTRL1_DR	BIT(0)
+#define RK806_PWRCTRL2_DR	BIT(1)
+#define RK806_PWRCTRL3_DR	BIT(2)
+#define RK806_PWRCTRL1_DATA	BIT(4)
+#define RK806_PWRCTRL2_DATA	BIT(5)
+#define RK806_PWRCTRL3_DATA	BIT(6)
+#define RK806_PWRCTRL1_FUN	GENMASK(2, 0)
+#define RK806_PWRCTRL2_FUN	GENMASK(6, 4)
+#define RK806_PWRCTRL3_FUN	GENMASK(2, 0)
+
+static struct rk805_pin_config rk806_gpio_cfgs[] = {
+	{
+		.fun_reg = RK806_SLEEP_CONFIG0,
+		.fun_msk = RK806_PWRCTRL1_FUN,
+		.reg = RK806_SLEEP_GPIO,
+		.val_msk = RK806_PWRCTRL1_DATA,
+		.dir_msk = RK806_PWRCTRL1_DR,
+	},
+	{
+		.fun_reg = RK806_SLEEP_CONFIG0,
+		.fun_msk = RK806_PWRCTRL2_FUN,
+		.reg = RK806_SLEEP_GPIO,
+		.val_msk = RK806_PWRCTRL2_DATA,
+		.dir_msk = RK806_PWRCTRL2_DR,
+	},
+	{
+		.fun_reg = RK806_SLEEP_CONFIG1,
+		.fun_msk = RK806_PWRCTRL3_FUN,
+		.reg = RK806_SLEEP_GPIO,
+		.val_msk = RK806_PWRCTRL3_DATA,
+		.dir_msk = RK806_PWRCTRL3_DR,
+	}
+};
+
 /* generic gpio chip */
 static int rk805_gpio_get(struct gpio_chip *chip, unsigned int offset)
 {
@@ -289,19 +412,13 @@ static int _rk805_pinctrl_set_mux(struct pinctrl_dev *pctldev,
 	if (!pci->pin_cfg[offset].fun_msk)
 		return 0;
 
-	if (mux == RK805_PINMUX_GPIO) {
-		ret = regmap_update_bits(pci->rk808->regmap,
-					 pci->pin_cfg[offset].reg,
-					 pci->pin_cfg[offset].fun_msk,
-					 pci->pin_cfg[offset].fun_msk);
-		if (ret) {
-			dev_err(pci->dev, "set gpio%d GPIO failed\n", offset);
-			return ret;
-		}
-	} else {
-		dev_err(pci->dev, "Couldn't find function mux %d\n", mux);
-		return -EINVAL;
-	}
+	mux <<= ffs(pci->pin_cfg[offset].fun_msk) - 1;
+	ret = regmap_update_bits(pci->rk808->regmap,
+				 pci->pin_cfg[offset].fun_reg,
+				 pci->pin_cfg[offset].fun_msk, mux);
+
+	if (ret)
+		dev_err(pci->dev, "set gpio%d func%d failed\n", offset, mux);
 
 	return 0;
 }
@@ -317,6 +434,22 @@ static int rk805_pinctrl_set_mux(struct pinctrl_dev *pctldev,
 	return _rk805_pinctrl_set_mux(pctldev, offset, mux);
 }
 
+static int rk805_pinctrl_gpio_request_enable(struct pinctrl_dev *pctldev,
+					     struct pinctrl_gpio_range *range,
+					     unsigned int offset)
+{
+	struct rk805_pctrl_info *pci = pinctrl_dev_get_drvdata(pctldev);
+
+	switch (pci->rk808->variant) {
+	case RK805_ID:
+		return _rk805_pinctrl_set_mux(pctldev, offset, RK805_PINMUX_GPIO);
+	case RK806_ID:
+		return _rk805_pinctrl_set_mux(pctldev, offset, RK806_PINMUX_FUN5);
+	}
+
+	return -ENOTSUPP;
+}
+
 static int rk805_pmx_gpio_set_direction(struct pinctrl_dev *pctldev,
 					struct pinctrl_gpio_range *range,
 					unsigned int offset, bool input)
@@ -324,13 +457,6 @@ static int rk805_pmx_gpio_set_direction(struct pinctrl_dev *pctldev,
 	struct rk805_pctrl_info *pci = pinctrl_dev_get_drvdata(pctldev);
 	int ret;
 
-	/* switch to gpio function */
-	ret = _rk805_pinctrl_set_mux(pctldev, offset, RK805_PINMUX_GPIO);
-	if (ret) {
-		dev_err(pci->dev, "set gpio%d mux failed\n", offset);
-		return ret;
-	}
-
 	/* set direction */
 	if (!pci->pin_cfg[offset].dir_msk)
 		return 0;
@@ -352,6 +478,7 @@ static const struct pinmux_ops rk805_pinmux_ops = {
 	.get_function_name	= rk805_pinctrl_get_func_name,
 	.get_function_groups	= rk805_pinctrl_get_func_groups,
 	.set_mux		= rk805_pinctrl_set_mux,
+	.gpio_request_enable	= rk805_pinctrl_gpio_request_enable,
 	.gpio_set_direction	= rk805_pmx_gpio_set_direction,
 };
 
@@ -364,6 +491,7 @@ static int rk805_pinconf_get(struct pinctrl_dev *pctldev,
 
 	switch (param) {
 	case PIN_CONFIG_OUTPUT:
+	case PIN_CONFIG_INPUT_ENABLE:
 		arg = rk805_gpio_get(&pci->gpio_chip, pin);
 		break;
 	default:
@@ -393,6 +521,12 @@ static int rk805_pinconf_set(struct pinctrl_dev *pctldev,
 			rk805_gpio_set(&pci->gpio_chip, pin, arg);
 			rk805_pmx_gpio_set_direction(pctldev, NULL, pin, false);
 			break;
+		case PIN_CONFIG_INPUT_ENABLE:
+			if (pci->rk808->variant != RK805_ID && arg) {
+				rk805_pmx_gpio_set_direction(pctldev, NULL, pin, true);
+				break;
+			}
+			fallthrough;
 		default:
 			dev_err(pci->dev, "Properties not supported\n");
 			return -ENOTSUPP;
@@ -448,6 +582,18 @@ static int rk805_pinctrl_probe(struct platform_device *pdev)
 		pci->pin_cfg = rk805_gpio_cfgs;
 		pci->gpio_chip.ngpio = ARRAY_SIZE(rk805_gpio_cfgs);
 		break;
+	case RK806_ID:
+		pci->pins = rk806_pins_desc;
+		pci->num_pins = ARRAY_SIZE(rk806_pins_desc);
+		pci->functions = rk806_pin_functions;
+		pci->num_functions = ARRAY_SIZE(rk806_pin_functions);
+		pci->groups = rk806_pin_groups;
+		pci->num_pin_groups = ARRAY_SIZE(rk806_pin_groups);
+		pci->pinctrl_desc.pins = rk806_pins_desc;
+		pci->pinctrl_desc.npins = ARRAY_SIZE(rk806_pins_desc);
+		pci->pin_cfg = rk806_gpio_cfgs;
+		pci->gpio_chip.ngpio = ARRAY_SIZE(rk806_gpio_cfgs);
+		break;
 	default:
 		dev_err(&pdev->dev, "unsupported RK805 ID %lu\n",
 			pci->rk808->variant);
@@ -488,5 +634,6 @@ static struct platform_driver rk805_pinctrl_driver = {
 module_platform_driver(rk805_pinctrl_driver);
 
 MODULE_DESCRIPTION("RK805 pin control and GPIO driver");
+MODULE_AUTHOR("Xu Shengfei <xsf@rock-chips.com>");
 MODULE_AUTHOR("Joseph Chen <chenjh@rock-chips.com>");
 MODULE_LICENSE("GPL v2");
-- 
2.35.1

[PATCHv2 10/13] pinctrl: rk805: add rk806 pinctrl support

[Sebastian Reichel]

Add support for rk806 dvs pinctrl to the existing rk805
driver.

This has been implemented using shengfei Xu's rk806
specific driver from the vendor tree as reference.

Co-Developed-by: shengfei Xu <xsf@rock-chips.com>
Signed-off-by: shengfei Xu <xsf@rock-chips.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/pinctrl/pinctrl-rk805.c | 189 ++++++++++++++++++++++++++++----
 1 file changed, 168 insertions(+), 21 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-rk805.c b/drivers/pinctrl/pinctrl-rk805.c
index 7c1f7408fb9a..2639a9ee82cd 100644
--- a/drivers/pinctrl/pinctrl-rk805.c
+++ b/drivers/pinctrl/pinctrl-rk805.c
@@ -1,10 +1,12 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
- * Pinctrl driver for Rockchip RK805 PMIC
+ * Pinctrl driver for Rockchip RK805/RK806 PMIC
  *
  * Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd
+ * Copyright (c) 2021 Rockchip Electronics Co., Ltd.
  *
  * Author: Joseph Chen <chenjh@rock-chips.com>
+ * Author: Xu Shengfei <xsf@rock-chips.com>
  *
  * Based on the pinctrl-as3722 driver
  */
@@ -44,6 +46,7 @@ struct rk805_pin_group {
 
 /*
  * @reg: gpio setting register;
+ * @fun_reg: functions select register;
  * @fun_mask: functions select mask value, when set is gpio;
  * @dir_mask: input or output mask value, when set is output, otherwise input;
  * @val_mask: gpio set value, when set is level high, otherwise low;
@@ -56,6 +59,7 @@ struct rk805_pin_group {
  */
 struct rk805_pin_config {
 	u8 reg;
+	u8 fun_reg;
 	u8 fun_msk;
 	u8 dir_msk;
 	u8 val_msk;
@@ -80,22 +84,50 @@ enum rk805_pinmux_option {
 	RK805_PINMUX_GPIO,
 };
 
+enum rk806_pinmux_option {
+	RK806_PINMUX_FUN0 = 0,
+	RK806_PINMUX_FUN1,
+	RK806_PINMUX_FUN2,
+	RK806_PINMUX_FUN3,
+	RK806_PINMUX_FUN4,
+	RK806_PINMUX_FUN5,
+};
+
 enum {
 	RK805_GPIO0,
 	RK805_GPIO1,
 };
 
+enum {
+	RK806_GPIO_DVS1,
+	RK806_GPIO_DVS2,
+	RK806_GPIO_DVS3
+};
+
 static const char *const rk805_gpio_groups[] = {
 	"gpio0",
 	"gpio1",
 };
 
+static const char *const rk806_gpio_groups[] = {
+	"gpio_pwrctrl1",
+	"gpio_pwrctrl2",
+	"gpio_pwrctrl3",
+};
+
 /* RK805: 2 output only GPIOs */
 static const struct pinctrl_pin_desc rk805_pins_desc[] = {
 	PINCTRL_PIN(RK805_GPIO0, "gpio0"),
 	PINCTRL_PIN(RK805_GPIO1, "gpio1"),
 };
 
+/* RK806 */
+static const struct pinctrl_pin_desc rk806_pins_desc[] = {
+	PINCTRL_PIN(RK806_GPIO_DVS1, "gpio_pwrctrl1"),
+	PINCTRL_PIN(RK806_GPIO_DVS2, "gpio_pwrctrl2"),
+	PINCTRL_PIN(RK806_GPIO_DVS3, "gpio_pwrctrl3"),
+};
+
 static const struct rk805_pin_function rk805_pin_functions[] = {
 	{
 		.name = "gpio",
@@ -105,6 +137,45 @@ static const struct rk805_pin_function rk805_pin_functions[] = {
 	},
 };
 
+static const struct rk805_pin_function rk806_pin_functions[] = {
+	{
+		.name = "pin_fun0",
+		.groups = rk806_gpio_groups,
+		.ngroups = ARRAY_SIZE(rk806_gpio_groups),
+		.mux_option = RK806_PINMUX_FUN0,
+	},
+	{
+		.name = "pin_fun1",
+		.groups = rk806_gpio_groups,
+		.ngroups = ARRAY_SIZE(rk806_gpio_groups),
+		.mux_option = RK806_PINMUX_FUN1,
+	},
+	{
+		.name = "pin_fun2",
+		.groups = rk806_gpio_groups,
+		.ngroups = ARRAY_SIZE(rk806_gpio_groups),
+		.mux_option = RK806_PINMUX_FUN2,
+	},
+	{
+		.name = "pin_fun3",
+		.groups = rk806_gpio_groups,
+		.ngroups = ARRAY_SIZE(rk806_gpio_groups),
+		.mux_option = RK806_PINMUX_FUN3,
+	},
+	{
+		.name = "pin_fun4",
+		.groups = rk806_gpio_groups,
+		.ngroups = ARRAY_SIZE(rk806_gpio_groups),
+		.mux_option = RK806_PINMUX_FUN4,
+	},
+	{
+		.name = "pin_fun5",
+		.groups = rk806_gpio_groups,
+		.ngroups = ARRAY_SIZE(rk806_gpio_groups),
+		.mux_option = RK806_PINMUX_FUN5,
+	},
+};
+
 static const struct rk805_pin_group rk805_pin_groups[] = {
 	{
 		.name = "gpio0",
@@ -118,6 +189,24 @@ static const struct rk805_pin_group rk805_pin_groups[] = {
 	},
 };
 
+static const struct rk805_pin_group rk806_pin_groups[] = {
+	{
+		.name = "gpio_pwrctrl1",
+		.pins = { RK806_GPIO_DVS1 },
+		.npins = 1,
+	},
+	{
+		.name = "gpio_pwrctrl2",
+		.pins = { RK806_GPIO_DVS2 },
+		.npins = 1,
+	},
+	{
+		.name = "gpio_pwrctrl3",
+		.pins = { RK806_GPIO_DVS3 },
+		.npins = 1,
+	}
+};
+
 #define RK805_GPIO0_VAL_MSK	BIT(0)
 #define RK805_GPIO1_VAL_MSK	BIT(1)
 
@@ -132,6 +221,40 @@ static const struct rk805_pin_config rk805_gpio_cfgs[] = {
 	},
 };
 
+#define RK806_PWRCTRL1_DR	BIT(0)
+#define RK806_PWRCTRL2_DR	BIT(1)
+#define RK806_PWRCTRL3_DR	BIT(2)
+#define RK806_PWRCTRL1_DATA	BIT(4)
+#define RK806_PWRCTRL2_DATA	BIT(5)
+#define RK806_PWRCTRL3_DATA	BIT(6)
+#define RK806_PWRCTRL1_FUN	GENMASK(2, 0)
+#define RK806_PWRCTRL2_FUN	GENMASK(6, 4)
+#define RK806_PWRCTRL3_FUN	GENMASK(2, 0)
+
+static struct rk805_pin_config rk806_gpio_cfgs[] = {
+	{
+		.fun_reg = RK806_SLEEP_CONFIG0,
+		.fun_msk = RK806_PWRCTRL1_FUN,
+		.reg = RK806_SLEEP_GPIO,
+		.val_msk = RK806_PWRCTRL1_DATA,
+		.dir_msk = RK806_PWRCTRL1_DR,
+	},
+	{
+		.fun_reg = RK806_SLEEP_CONFIG0,
+		.fun_msk = RK806_PWRCTRL2_FUN,
+		.reg = RK806_SLEEP_GPIO,
+		.val_msk = RK806_PWRCTRL2_DATA,
+		.dir_msk = RK806_PWRCTRL2_DR,
+	},
+	{
+		.fun_reg = RK806_SLEEP_CONFIG1,
+		.fun_msk = RK806_PWRCTRL3_FUN,
+		.reg = RK806_SLEEP_GPIO,
+		.val_msk = RK806_PWRCTRL3_DATA,
+		.dir_msk = RK806_PWRCTRL3_DR,
+	}
+};
+
 /* generic gpio chip */
 static int rk805_gpio_get(struct gpio_chip *chip, unsigned int offset)
 {
@@ -289,19 +412,13 @@ static int _rk805_pinctrl_set_mux(struct pinctrl_dev *pctldev,
 	if (!pci->pin_cfg[offset].fun_msk)
 		return 0;
 
-	if (mux == RK805_PINMUX_GPIO) {
-		ret = regmap_update_bits(pci->rk808->regmap,
-					 pci->pin_cfg[offset].reg,
-					 pci->pin_cfg[offset].fun_msk,
-					 pci->pin_cfg[offset].fun_msk);
-		if (ret) {
-			dev_err(pci->dev, "set gpio%d GPIO failed\n", offset);
-			return ret;
-		}
-	} else {
-		dev_err(pci->dev, "Couldn't find function mux %d\n", mux);
-		return -EINVAL;
-	}
+	mux <<= ffs(pci->pin_cfg[offset].fun_msk) - 1;
+	ret = regmap_update_bits(pci->rk808->regmap,
+				 pci->pin_cfg[offset].fun_reg,
+				 pci->pin_cfg[offset].fun_msk, mux);
+
+	if (ret)
+		dev_err(pci->dev, "set gpio%d func%d failed\n", offset, mux);
 
 	return 0;
 }
@@ -317,6 +434,22 @@ static int rk805_pinctrl_set_mux(struct pinctrl_dev *pctldev,
 	return _rk805_pinctrl_set_mux(pctldev, offset, mux);
 }
 
+static int rk805_pinctrl_gpio_request_enable(struct pinctrl_dev *pctldev,
+					     struct pinctrl_gpio_range *range,
+					     unsigned int offset)
+{
+	struct rk805_pctrl_info *pci = pinctrl_dev_get_drvdata(pctldev);
+
+	switch (pci->rk808->variant) {
+	case RK805_ID:
+		return _rk805_pinctrl_set_mux(pctldev, offset, RK805_PINMUX_GPIO);
+	case RK806_ID:
+		return _rk805_pinctrl_set_mux(pctldev, offset, RK806_PINMUX_FUN5);
+	}
+
+	return -ENOTSUPP;
+}
+
 static int rk805_pmx_gpio_set_direction(struct pinctrl_dev *pctldev,
 					struct pinctrl_gpio_range *range,
 					unsigned int offset, bool input)
@@ -324,13 +457,6 @@ static int rk805_pmx_gpio_set_direction(struct pinctrl_dev *pctldev,
 	struct rk805_pctrl_info *pci = pinctrl_dev_get_drvdata(pctldev);
 	int ret;
 
-	/* switch to gpio function */
-	ret = _rk805_pinctrl_set_mux(pctldev, offset, RK805_PINMUX_GPIO);
-	if (ret) {
-		dev_err(pci->dev, "set gpio%d mux failed\n", offset);
-		return ret;
-	}
-
 	/* set direction */
 	if (!pci->pin_cfg[offset].dir_msk)
 		return 0;
@@ -352,6 +478,7 @@ static const struct pinmux_ops rk805_pinmux_ops = {
 	.get_function_name	= rk805_pinctrl_get_func_name,
 	.get_function_groups	= rk805_pinctrl_get_func_groups,
 	.set_mux		= rk805_pinctrl_set_mux,
+	.gpio_request_enable	= rk805_pinctrl_gpio_request_enable,
 	.gpio_set_direction	= rk805_pmx_gpio_set_direction,
 };
 
@@ -364,6 +491,7 @@ static int rk805_pinconf_get(struct pinctrl_dev *pctldev,
 
 	switch (param) {
 	case PIN_CONFIG_OUTPUT:
+	case PIN_CONFIG_INPUT_ENABLE:
 		arg = rk805_gpio_get(&pci->gpio_chip, pin);
 		break;
 	default:
@@ -393,6 +521,12 @@ static int rk805_pinconf_set(struct pinctrl_dev *pctldev,
 			rk805_gpio_set(&pci->gpio_chip, pin, arg);
 			rk805_pmx_gpio_set_direction(pctldev, NULL, pin, false);
 			break;
+		case PIN_CONFIG_INPUT_ENABLE:
+			if (pci->rk808->variant != RK805_ID && arg) {
+				rk805_pmx_gpio_set_direction(pctldev, NULL, pin, true);
+				break;
+			}
+			fallthrough;
 		default:
 			dev_err(pci->dev, "Properties not supported\n");
 			return -ENOTSUPP;
@@ -448,6 +582,18 @@ static int rk805_pinctrl_probe(struct platform_device *pdev)
 		pci->pin_cfg = rk805_gpio_cfgs;
 		pci->gpio_chip.ngpio = ARRAY_SIZE(rk805_gpio_cfgs);
 		break;
+	case RK806_ID:
+		pci->pins = rk806_pins_desc;
+		pci->num_pins = ARRAY_SIZE(rk806_pins_desc);
+		pci->functions = rk806_pin_functions;
+		pci->num_functions = ARRAY_SIZE(rk806_pin_functions);
+		pci->groups = rk806_pin_groups;
+		pci->num_pin_groups = ARRAY_SIZE(rk806_pin_groups);
+		pci->pinctrl_desc.pins = rk806_pins_desc;
+		pci->pinctrl_desc.npins = ARRAY_SIZE(rk806_pins_desc);
+		pci->pin_cfg = rk806_gpio_cfgs;
+		pci->gpio_chip.ngpio = ARRAY_SIZE(rk806_gpio_cfgs);
+		break;
 	default:
 		dev_err(&pdev->dev, "unsupported RK805 ID %lu\n",
 			pci->rk808->variant);
@@ -488,5 +634,6 @@ static struct platform_driver rk805_pinctrl_driver = {
 module_platform_driver(rk805_pinctrl_driver);
 
 MODULE_DESCRIPTION("RK805 pin control and GPIO driver");
+MODULE_AUTHOR("Xu Shengfei <xsf@rock-chips.com>");
 MODULE_AUTHOR("Joseph Chen <chenjh@rock-chips.com>");
 MODULE_LICENSE("GPL v2");
-- 
2.35.1


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[PATCHv2 11/13] regulator: rk808: Use dev_err_probe

[Sebastian Reichel]

Print error message for potential EPROBE_DEFER error using
dev_err_probe, which captures the reason in
/sys/kernel/debug/devices_deferred and otherwise silences
the message.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/regulator/rk808-regulator.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c
index ce9c64cadeba..fa9fc1aa1ae3 100644
--- a/drivers/regulator/rk808-regulator.c
+++ b/drivers/regulator/rk808-regulator.c
@@ -1343,11 +1343,9 @@ static int rk808_regulator_probe(struct platform_device *pdev)
 	for (i = 0; i < nregulators; i++) {
 		rk808_rdev = devm_regulator_register(&pdev->dev,
 						     &regulators[i], &config);
-		if (IS_ERR(rk808_rdev)) {
-			dev_err(&pdev->dev,
-				"failed to register %d regulator\n", i);
-			return PTR_ERR(rk808_rdev);
-		}
+		if (IS_ERR(rk808_rdev))
+			return dev_err_probe(&pdev->dev, PTR_ERR(rk808_rdev),
+					     "failed to register %d regulator\n", i);
 	}
 
 	return 0;
-- 
2.35.1

[PATCHv2 11/13] regulator: rk808: Use dev_err_probe

[Sebastian Reichel]

Print error message for potential EPROBE_DEFER error using
dev_err_probe, which captures the reason in
/sys/kernel/debug/devices_deferred and otherwise silences
the message.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/regulator/rk808-regulator.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c
index ce9c64cadeba..fa9fc1aa1ae3 100644
--- a/drivers/regulator/rk808-regulator.c
+++ b/drivers/regulator/rk808-regulator.c
@@ -1343,11 +1343,9 @@ static int rk808_regulator_probe(struct platform_device *pdev)
 	for (i = 0; i < nregulators; i++) {
 		rk808_rdev = devm_regulator_register(&pdev->dev,
 						     &regulators[i], &config);
-		if (IS_ERR(rk808_rdev)) {
-			dev_err(&pdev->dev,
-				"failed to register %d regulator\n", i);
-			return PTR_ERR(rk808_rdev);
-		}
+		if (IS_ERR(rk808_rdev))
+			return dev_err_probe(&pdev->dev, PTR_ERR(rk808_rdev),
+					     "failed to register %d regulator\n", i);
 	}
 
 	return 0;
-- 
2.35.1


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[PATCHv2 12/13] regulator: rk808: add rk806 support

[Sebastian Reichel]

Add rk806 support to the existing rk808 regulator
driver.

This has been implemented using shengfei Xu's rk806
specific driver from the vendor tree as reference.

Co-Developed-by: shengfei Xu <xsf@rock-chips.com>
Signed-off-by: shengfei Xu <xsf@rock-chips.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/regulator/rk808-regulator.c | 482 ++++++++++++++++++++++++++++
 1 file changed, 482 insertions(+)

diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c
index fa9fc1aa1ae3..cd1a2cff4a37 100644
--- a/drivers/regulator/rk808-regulator.c
+++ b/drivers/regulator/rk808-regulator.c
@@ -3,9 +3,11 @@
  * Regulator driver for Rockchip RK805/RK808/RK818
  *
  * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
+ * Copyright (c) 2021 Rockchip Electronics Co., Ltd.
  *
  * Author: Chris Zhong <zyw@rock-chips.com>
  * Author: Zhang Qing <zhangqing@rock-chips.com>
+ * Author: Xu Shengfei <xsf@rock-chips.com>
  *
  * Copyright (C) 2016 PHYTEC Messtechnik GmbH
  *
@@ -39,6 +41,23 @@
 #define RK818_LDO3_ON_VSEL_MASK		0xf
 #define RK818_BOOST_ON_VSEL_MASK	0xe0
 
+#define RK806_DCDC_SLP_REG_OFFSET	0x0A
+#define RK806_NLDO_SLP_REG_OFFSET	0x05
+#define RK806_PLDO_SLP_REG_OFFSET	0x06
+
+#define RK806_BUCK_SEL_CNT		0xff
+#define RK806_LDO_SEL_CNT		0xff
+
+#define RK806_RAMP_RATE_4LSB_PER_1CLK	0x00/* LDO 100mV/uS buck 50mV/us */
+#define RK806_RAMP_RATE_2LSB_PER_1CLK	0x01/* LDO 50mV/uS buck 25mV/us */
+#define RK806_RAMP_RATE_1LSB_PER_1CLK	0x02/* LDO 25mV/uS buck 12.5mV/us */
+#define RK806_RAMP_RATE_1LSB_PER_2CLK	0x03/* LDO 12.5mV/uS buck 6.25mV/us */
+
+#define RK806_RAMP_RATE_1LSB_PER_4CLK	0x04/* LDO 6.28/2mV/uS buck 3.125mV/us */
+#define RK806_RAMP_RATE_1LSB_PER_8CLK	0x05/* LDO 3.12mV/uS buck 1.56mV/us */
+#define RK806_RAMP_RATE_1LSB_PER_13CLK	0x06/* LDO 1.9mV/uS buck 961mV/us */
+#define RK806_RAMP_RATE_1LSB_PER_32CLK	0x07/* LDO 0.78mV/uS buck 0.39mV/us */
+
 /* Ramp rate definitions for buck1 / buck2 only */
 #define RK808_RAMP_RATE_OFFSET		3
 #define RK808_RAMP_RATE_MASK		(3 << RK808_RAMP_RATE_OFFSET)
@@ -117,6 +136,31 @@
 	RK8XX_DESC_COM(_id, _match, _supply, _min, _max, _step, _vreg,	\
 	_vmask, _ereg, _emask, 0, 0, _etime, &rk805_reg_ops)
 
+#define RK806_REGULATOR(_name, _supply_name, _id, _ops,\
+			_n_voltages, _vr, _er, _lr, ctrl_bit, _rr, _rm)\
+[_id] = {\
+		.name = _name,\
+		.supply_name = _supply_name,\
+		.of_match = of_match_ptr(_name),\
+		.regulators_node = of_match_ptr("regulators"),\
+		.id = _id,\
+		.ops = &_ops,\
+		.type = REGULATOR_VOLTAGE,\
+		.n_voltages = _n_voltages,\
+		.linear_ranges = _lr,\
+		.n_linear_ranges = ARRAY_SIZE(_lr),\
+		.vsel_reg = _vr,\
+		.vsel_mask = 0xff,\
+		.enable_reg = _er,\
+		.enable_mask = ENABLE_MASK(ctrl_bit),\
+		.enable_val = ENABLE_MASK(ctrl_bit),\
+		.disable_val = DISABLE_VAL(ctrl_bit),\
+		.of_map_mode = rk8xx_regulator_of_map_mode,\
+		.ramp_reg = _rr,\
+		.ramp_mask = _rm,\
+		.owner = THIS_MODULE,\
+	}
+
 #define RK8XX_DESC(_id, _match, _supply, _min, _max, _step, _vreg,	\
 	_vmask, _ereg, _emask, _etime)					\
 	RK8XX_DESC_COM(_id, _match, _supply, _min, _max, _step, _vreg,	\
@@ -153,6 +197,17 @@
 	RKXX_DESC_SWITCH_COM(_id, _match, _supply, _ereg, _emask,	\
 	0, 0, &rk808_switch_ops)
 
+struct rk8xx_register_bit {
+	u8 reg;
+	u8 bit;
+};
+
+#define RK8XX_REG_BIT(_reg, _bit)					\
+	{								\
+		.reg = _reg,						\
+		.bit = BIT(_bit),						\
+	}
+
 struct rk808_regulator_data {
 	struct gpio_desc *dvs_gpio[2];
 };
@@ -216,6 +271,223 @@ static const unsigned int rk817_buck1_4_ramp_table[] = {
 	3000, 6300, 12500, 25000
 };
 
+static int rk806_get_voltage_sel_regmap(struct regulator_dev *rdev)
+{
+	unsigned int val;
+	int vsel_reg, ret;
+
+	vsel_reg = rdev->desc->vsel_reg;
+
+	ret = regmap_read(rdev->regmap, vsel_reg, &val);
+	if (ret != 0)
+		return ret;
+
+	val &= rdev->desc->vsel_mask;
+	val >>= ffs(rdev->desc->vsel_mask) - 1;
+
+	return val;
+}
+
+static int rk806_set_voltage(struct regulator_dev *rdev,
+			     int req_min_uV, int req_max_uV,
+			     unsigned int *selector)
+{
+	int vsel_reg, ret, sel;
+
+	ret = regulator_map_voltage_linear_range(rdev, req_min_uV, req_max_uV);
+	if (ret >= 0) {
+		*selector = ret;
+		sel = ret;
+	} else {
+		return -EINVAL;
+	}
+
+	vsel_reg = rdev->desc->vsel_reg;
+
+	sel <<= ffs(rdev->desc->vsel_mask) - 1;
+
+	ret = regmap_update_bits(rdev->regmap, vsel_reg,
+				 rdev->desc->vsel_mask, sel);
+
+	return ret;
+}
+
+static int rk806_set_mode_dcdc(struct regulator_dev *rdev, unsigned int mode)
+{
+	int rid = rdev_get_id(rdev);
+	int ctr_bit, reg;
+
+	reg = RK806_POWER_FPWM_EN0 + rid / 8;
+	ctr_bit = rid % 8;
+
+	switch (mode) {
+	case REGULATOR_MODE_FAST:
+		return regmap_update_bits(rdev->regmap, reg,
+					  PWM_MODE_MSK << ctr_bit,
+					  FPWM_MODE << ctr_bit);
+	case REGULATOR_MODE_NORMAL:
+		return regmap_update_bits(rdev->regmap, reg,
+					  PWM_MODE_MSK << ctr_bit,
+					  AUTO_PWM_MODE << ctr_bit);
+	default:
+		dev_err(rdev_get_dev(rdev), "mode unsupported: %u\n", mode);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static unsigned int rk806_get_mode_dcdc(struct regulator_dev *rdev)
+{
+	int rid = rdev_get_id(rdev);
+	int ctr_bit, reg;
+	unsigned int val;
+	int err;
+
+	reg = RK806_POWER_FPWM_EN0 + rid / 8;
+	ctr_bit = rid % 8;
+
+	err = regmap_read(rdev->regmap, reg, &val);
+	if (err)
+		return err;
+
+	if ((val >> ctr_bit) & FPWM_MODE)
+		return REGULATOR_MODE_FAST;
+	else
+		return REGULATOR_MODE_NORMAL;
+}
+
+static const struct rk8xx_register_bit rk806_dcdc_rate2[] = {
+	RK8XX_REG_BIT(0xEB, 0),
+	RK8XX_REG_BIT(0xEB, 1),
+	RK8XX_REG_BIT(0xEB, 2),
+	RK8XX_REG_BIT(0xEB, 3),
+	RK8XX_REG_BIT(0xEB, 4),
+	RK8XX_REG_BIT(0xEB, 5),
+	RK8XX_REG_BIT(0xEB, 6),
+	RK8XX_REG_BIT(0xEB, 7),
+	RK8XX_REG_BIT(0xEA, 0),
+	RK8XX_REG_BIT(0xEA, 1),
+};
+
+static int rk806_set_ramp_delay_dcdc(struct regulator_dev *rdev, int ramp_delay)
+{
+	unsigned int ramp_value = RK806_RAMP_RATE_2LSB_PER_1CLK;
+	int rid = rdev_get_id(rdev);
+	int regval, ret;
+
+	switch (ramp_delay) {
+	case 1 ... 390:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_32CLK;
+		break;
+	case 391 ... 961:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_13CLK;
+		break;
+	case 962 ... 1560:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_8CLK;
+		break;
+	case 1561 ... 3125:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_4CLK;
+		break;
+	case 3126 ... 6250:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_2CLK;
+		break;
+	case 6251 ... 12500:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_1CLK;
+		break;
+	case 12501 ... 25000:
+		ramp_value = RK806_RAMP_RATE_2LSB_PER_1CLK;
+		break;
+	case 25001 ... 50000: /* 50mV/us */
+		ramp_value = RK806_RAMP_RATE_4LSB_PER_1CLK;
+		break;
+	default:
+		dev_warn(rdev_get_dev(rdev),
+			 "%s ramp_delay: %d not supported, setting 10000\n",
+			 rdev->desc->name, ramp_delay);
+	}
+
+	regval = ramp_value << (ffs(rdev->desc->ramp_mask) - 1);
+	ret = regmap_update_bits(rdev->regmap, rdev->desc->ramp_reg,
+				 rdev->desc->ramp_mask, regval);
+	if (ret)
+		return ret;
+
+	regval = (ramp_value >> 2) & 0x1 ? rk806_dcdc_rate2[rid].bit : 0;
+	return regmap_update_bits(rdev->regmap, rk806_dcdc_rate2[rid].reg,
+				  rk806_dcdc_rate2[rid].bit,
+				  regval);
+}
+
+
+static int rk806_set_ramp_delay_ldo(struct regulator_dev *rdev, int ramp_delay)
+{
+	unsigned int ramp_value = RK806_RAMP_RATE_2LSB_PER_1CLK;
+	int regval;
+
+	switch (ramp_delay) {
+	case 1 ... 780:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_32CLK;
+		break;
+	case 781 ... 1900:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_13CLK;
+		break;
+	case 1901 ... 3120:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_8CLK;
+		break;
+	case 3121 ... 6280:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_4CLK;
+		break;
+	case 6281 ... 12500:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_2CLK;
+		break;
+	case 12501 ... 25000:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_1CLK;
+		break;
+	case 25001 ... 50000:
+		ramp_value = RK806_RAMP_RATE_2LSB_PER_1CLK;
+		break;
+	case 50001 ... 100000:
+		ramp_value = RK806_RAMP_RATE_4LSB_PER_1CLK;
+		break;
+	default:
+		pr_warn("%s ramp_delay: %d not supported, setting 10000\n",
+			rdev->desc->name, ramp_delay);
+	}
+
+	regval = ramp_value << (ffs(rdev->desc->ramp_mask) - 1);
+	return regmap_update_bits(rdev->regmap, rdev->desc->ramp_reg,
+				  rdev->desc->ramp_mask, regval);
+}
+
+static int rk806_set_suspend_voltage_range(struct regulator_dev *rdev, int reg_offset, int uv)
+{
+	int sel = regulator_map_voltage_linear_range(rdev, uv, uv);
+	unsigned int reg;
+
+	if (sel < 0)
+		return -EINVAL;
+
+	reg = rdev->desc->vsel_reg + reg_offset;
+
+	return regmap_update_bits(rdev->regmap, reg, rdev->desc->vsel_mask, sel);
+}
+
+static int rk806_set_suspend_voltage_range_dcdc(struct regulator_dev *rdev, int uv)
+{
+	return rk806_set_suspend_voltage_range(rdev, RK806_DCDC_SLP_REG_OFFSET, uv);
+}
+
+static int rk806_set_suspend_voltage_range_nldo(struct regulator_dev *rdev, int uv)
+{
+	return rk806_set_suspend_voltage_range(rdev, RK806_NLDO_SLP_REG_OFFSET, uv);
+}
+
+static int rk806_set_suspend_voltage_range_pldo(struct regulator_dev *rdev, int uv)
+{
+	return rk806_set_suspend_voltage_range(rdev, RK806_PLDO_SLP_REG_OFFSET, uv);
+}
+
 static int rk808_buck1_2_get_voltage_sel_regmap(struct regulator_dev *rdev)
 {
 	struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev);
@@ -393,6 +665,45 @@ static int rk805_set_suspend_disable(struct regulator_dev *rdev)
 				  0);
 }
 
+static const struct rk8xx_register_bit rk806_suspend_bits[] = {
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 0),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 1),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 2),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 3),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 4),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 5),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 6),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 7),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 6),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 7),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 0),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 1),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 2),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 3),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 4),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN2, 1),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN2, 2),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN2, 3),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN2, 4),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN2, 5),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN2, 0),
+};
+
+static int rk806_set_suspend_enable(struct regulator_dev *rdev)
+{
+	int rid = rdev_get_id(rdev);
+	return regmap_update_bits(rdev->regmap, rk806_suspend_bits[rid].reg,
+				  rk806_suspend_bits[rid].bit,
+				  rk806_suspend_bits[rid].bit);
+}
+
+static int rk806_set_suspend_disable(struct regulator_dev *rdev)
+{
+	int rid = rdev_get_id(rdev);
+	return regmap_update_bits(rdev->regmap, rk806_suspend_bits[rid].reg,
+				  rk806_suspend_bits[rid].bit, 0);
+}
+
 static int rk808_set_suspend_enable(struct regulator_dev *rdev)
 {
 	unsigned int reg;
@@ -561,6 +872,66 @@ static const struct regulator_ops rk805_switch_ops = {
 	.set_suspend_disable    = rk805_set_suspend_disable,
 };
 
+static const struct regulator_ops rk806_ops_dcdc = {
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+
+	.get_voltage_sel	= rk806_get_voltage_sel_regmap,
+	.set_voltage		= rk806_set_voltage,
+	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
+	.set_mode		= rk806_set_mode_dcdc,
+	.get_mode		= rk806_get_mode_dcdc,
+
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.is_enabled		= regulator_is_enabled_regmap,
+
+	.set_suspend_mode	= rk806_set_mode_dcdc,
+	.set_ramp_delay		= rk806_set_ramp_delay_dcdc,
+
+	.set_suspend_voltage	= rk806_set_suspend_voltage_range_dcdc,
+	.set_suspend_enable	= rk806_set_suspend_enable,
+	.set_suspend_disable	= rk806_set_suspend_disable,
+};
+
+static const struct regulator_ops rk806_ops_nldo = {
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+
+	.get_voltage_sel	= rk806_get_voltage_sel_regmap,
+	.set_voltage		= rk806_set_voltage,
+	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
+
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.is_enabled		= regulator_is_enabled_regmap,
+
+	.set_ramp_delay		= rk806_set_ramp_delay_ldo,
+
+	.set_suspend_voltage	= rk806_set_suspend_voltage_range_nldo,
+	.set_suspend_enable	= rk806_set_suspend_enable,
+	.set_suspend_disable	= rk806_set_suspend_disable,
+};
+
+static const struct regulator_ops rk806_ops_pldo = {
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+
+	.get_voltage_sel	= rk806_get_voltage_sel_regmap,
+	.set_voltage		= rk806_set_voltage,
+	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
+
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.is_enabled		= regulator_is_enabled_regmap,
+
+	.set_ramp_delay		= rk806_set_ramp_delay_ldo,
+
+	.set_suspend_voltage	= rk806_set_suspend_voltage_range_pldo,
+	.set_suspend_enable	= rk806_set_suspend_enable,
+	.set_suspend_disable	= rk806_set_suspend_disable,
+};
+
 static const struct regulator_ops rk808_buck1_2_ops = {
 	.list_voltage		= regulator_list_voltage_linear,
 	.map_voltage		= regulator_map_voltage_linear,
@@ -743,6 +1114,112 @@ static const struct regulator_desc rk805_reg[] = {
 		BIT(2), 400),
 };
 
+static const struct linear_range rk806_buck_voltage_ranges[] = {
+	REGULATOR_LINEAR_RANGE(500000, 0, 160, 6250), /* 500mV ~ 1500mV */
+	REGULATOR_LINEAR_RANGE(1500000, 161, 237, 25000), /* 1500mV ~ 3400mV */
+	REGULATOR_LINEAR_RANGE(3400000, 238, 255, 0),
+};
+
+static const struct linear_range rk806_ldo_voltage_ranges[] = {
+	REGULATOR_LINEAR_RANGE(500000, 0, 232, 12500), /* 500mV ~ 3400mV */
+	REGULATOR_LINEAR_RANGE(3400000, 233, 255, 0), /* 500mV ~ 3400mV */
+};
+
+static const struct regulator_desc rk806_reg[] = {
+	RK806_REGULATOR("dcdc-reg1", "vcc1", RK806_ID_DCDC1, rk806_ops_dcdc,
+			RK806_BUCK_SEL_CNT, RK806_BUCK1_ON_VSEL,
+			RK806_POWER_EN0, rk806_buck_voltage_ranges, 0,
+			RK806_BUCK1_CONFIG, 0xc0),
+	RK806_REGULATOR("dcdc-reg2", "vcc2", RK806_ID_DCDC2, rk806_ops_dcdc,
+			RK806_BUCK_SEL_CNT, RK806_BUCK2_ON_VSEL,
+			RK806_POWER_EN0, rk806_buck_voltage_ranges, 1,
+			RK806_BUCK2_CONFIG, 0xc0),
+	RK806_REGULATOR("dcdc-reg3", "vcc3", RK806_ID_DCDC3, rk806_ops_dcdc,
+			RK806_BUCK_SEL_CNT, RK806_BUCK3_ON_VSEL,
+			RK806_POWER_EN0, rk806_buck_voltage_ranges, 2,
+			RK806_BUCK3_CONFIG, 0xc0),
+	RK806_REGULATOR("dcdc-reg4", "vcc4", RK806_ID_DCDC4, rk806_ops_dcdc,
+			RK806_BUCK_SEL_CNT, RK806_BUCK4_ON_VSEL,
+			RK806_POWER_EN0, rk806_buck_voltage_ranges, 3,
+			RK806_BUCK4_CONFIG, 0xc0),
+
+	RK806_REGULATOR("dcdc-reg5", "vcc5", RK806_ID_DCDC5, rk806_ops_dcdc,
+			RK806_BUCK_SEL_CNT, RK806_BUCK5_ON_VSEL,
+			RK806_POWER_EN1, rk806_buck_voltage_ranges, 0,
+			RK806_BUCK5_CONFIG, 0xc0),
+	RK806_REGULATOR("dcdc-reg6", "vcc6", RK806_ID_DCDC6, rk806_ops_dcdc,
+			RK806_BUCK_SEL_CNT, RK806_BUCK6_ON_VSEL,
+			RK806_POWER_EN1, rk806_buck_voltage_ranges, 1,
+			RK806_BUCK6_CONFIG, 0xc0),
+	RK806_REGULATOR("dcdc-reg7", "vcc7", RK806_ID_DCDC7, rk806_ops_dcdc,
+			RK806_BUCK_SEL_CNT, RK806_BUCK7_ON_VSEL,
+			RK806_POWER_EN1, rk806_buck_voltage_ranges, 2,
+			RK806_BUCK7_CONFIG, 0xc0),
+	RK806_REGULATOR("dcdc-reg8", "vcc8", RK806_ID_DCDC8, rk806_ops_dcdc,
+			RK806_BUCK_SEL_CNT, RK806_BUCK8_ON_VSEL,
+			RK806_POWER_EN1, rk806_buck_voltage_ranges, 3,
+			RK806_BUCK8_CONFIG, 0xc0),
+
+	RK806_REGULATOR("dcdc-reg9", "vcc9", RK806_ID_DCDC9, rk806_ops_dcdc,
+			RK806_BUCK_SEL_CNT, RK806_BUCK9_ON_VSEL,
+			RK806_POWER_EN2, rk806_buck_voltage_ranges, 0,
+			RK806_BUCK9_CONFIG, 0xc0),
+	RK806_REGULATOR("dcdc-reg10", "vcc10", RK806_ID_DCDC10, rk806_ops_dcdc,
+			RK806_BUCK_SEL_CNT, RK806_BUCK10_ON_VSEL,
+			RK806_POWER_EN2, rk806_buck_voltage_ranges, 1,
+			RK806_BUCK10_CONFIG, 0xc0),
+
+	RK806_REGULATOR("nldo-reg1", "vcc13", RK806_ID_NLDO1, rk806_ops_nldo,
+			RK806_LDO_SEL_CNT, RK806_NLDO1_ON_VSEL,
+			RK806_POWER_EN3, rk806_ldo_voltage_ranges, 0,
+			0xEA, 0x38),
+	RK806_REGULATOR("nldo-reg2", "vcc13", RK806_ID_NLDO2, rk806_ops_nldo,
+			RK806_LDO_SEL_CNT, RK806_NLDO2_ON_VSEL,
+			RK806_POWER_EN3, rk806_ldo_voltage_ranges, 1,
+			0xEA, 0x38),
+	RK806_REGULATOR("nldo-reg3", "vcc13", RK806_ID_NLDO3, rk806_ops_nldo,
+			RK806_LDO_SEL_CNT, RK806_NLDO3_ON_VSEL,
+			RK806_POWER_EN3, rk806_ldo_voltage_ranges, 2,
+			0xEA, 0x38),
+	RK806_REGULATOR("nldo-reg4", "vcc14", RK806_ID_NLDO4, rk806_ops_nldo,
+			RK806_LDO_SEL_CNT, RK806_NLDO4_ON_VSEL,
+			RK806_POWER_EN3, rk806_ldo_voltage_ranges, 3,
+			0xEA, 0x38),
+
+	RK806_REGULATOR("nldo-reg5", "vcc14", RK806_ID_NLDO5, rk806_ops_nldo,
+			RK806_LDO_SEL_CNT, RK806_NLDO5_ON_VSEL,
+			RK806_POWER_EN5, rk806_ldo_voltage_ranges, 2,
+			0xEA, 0x38),
+
+	RK806_REGULATOR("pldo-reg1", "vcc11", RK806_ID_PLDO1, rk806_ops_pldo,
+			RK806_LDO_SEL_CNT, RK806_PLDO1_ON_VSEL,
+			RK806_POWER_EN4, rk806_ldo_voltage_ranges, 1,
+			0xEA, 0x38),
+	RK806_REGULATOR("pldo-reg2", "vcc11", RK806_ID_PLDO2, rk806_ops_pldo,
+			RK806_LDO_SEL_CNT, RK806_PLDO2_ON_VSEL,
+			RK806_POWER_EN4, rk806_ldo_voltage_ranges, 2,
+			0xEA, 0x38),
+	RK806_REGULATOR("pldo-reg3", "vcc11", RK806_ID_PLDO3, rk806_ops_pldo,
+			RK806_LDO_SEL_CNT, RK806_PLDO3_ON_VSEL,
+			RK806_POWER_EN4, rk806_ldo_voltage_ranges, 3,
+			0xEA, 0x38),
+
+	RK806_REGULATOR("pldo-reg4", "vcc12", RK806_ID_PLDO4, rk806_ops_pldo,
+			RK806_LDO_SEL_CNT, RK806_PLDO4_ON_VSEL,
+			RK806_POWER_EN5, rk806_ldo_voltage_ranges, 0,
+			0xEA, 0x38),
+	RK806_REGULATOR("pldo-reg5", "vcc12", RK806_ID_PLDO5, rk806_ops_pldo,
+			RK806_LDO_SEL_CNT, RK806_PLDO5_ON_VSEL,
+			RK806_POWER_EN5, rk806_ldo_voltage_ranges, 1,
+			0xEA, 0x38),
+
+	RK806_REGULATOR("pldo-reg6", "vcca", RK806_ID_PLDO6, rk806_ops_pldo,
+			RK806_LDO_SEL_CNT, RK806_PLDO6_ON_VSEL,
+			RK806_POWER_EN4, rk806_ldo_voltage_ranges, 0,
+			0xEA, 0x38),
+};
+
+
 static const struct regulator_desc rk808_reg[] = {
 	{
 		.name = "DCDC_REG1",
@@ -1312,6 +1789,10 @@ static int rk808_regulator_probe(struct platform_device *pdev)
 		regulators = rk805_reg;
 		nregulators = RK805_NUM_REGULATORS;
 		break;
+	case RK806_ID:
+		regulators = rk806_reg;
+		nregulators = ARRAY_SIZE(rk806_reg);
+		break;
 	case RK808_ID:
 		regulators = rk808_reg;
 		nregulators = RK808_NUM_REGULATORS;
@@ -1365,5 +1846,6 @@ MODULE_AUTHOR("Tony xie <tony.xie@rock-chips.com>");
 MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
 MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>");
 MODULE_AUTHOR("Wadim Egorov <w.egorov@phytec.de>");
+MODULE_AUTHOR("Xu Shengfei <xsf@rock-chips.com>");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:rk808-regulator");
-- 
2.35.1

[PATCHv2 12/13] regulator: rk808: add rk806 support

[Sebastian Reichel]

Add rk806 support to the existing rk808 regulator
driver.

This has been implemented using shengfei Xu's rk806
specific driver from the vendor tree as reference.

Co-Developed-by: shengfei Xu <xsf@rock-chips.com>
Signed-off-by: shengfei Xu <xsf@rock-chips.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/regulator/rk808-regulator.c | 482 ++++++++++++++++++++++++++++
 1 file changed, 482 insertions(+)

diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c
index fa9fc1aa1ae3..cd1a2cff4a37 100644
--- a/drivers/regulator/rk808-regulator.c
+++ b/drivers/regulator/rk808-regulator.c
@@ -3,9 +3,11 @@
  * Regulator driver for Rockchip RK805/RK808/RK818
  *
  * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
+ * Copyright (c) 2021 Rockchip Electronics Co., Ltd.
  *
  * Author: Chris Zhong <zyw@rock-chips.com>
  * Author: Zhang Qing <zhangqing@rock-chips.com>
+ * Author: Xu Shengfei <xsf@rock-chips.com>
  *
  * Copyright (C) 2016 PHYTEC Messtechnik GmbH
  *
@@ -39,6 +41,23 @@
 #define RK818_LDO3_ON_VSEL_MASK		0xf
 #define RK818_BOOST_ON_VSEL_MASK	0xe0
 
+#define RK806_DCDC_SLP_REG_OFFSET	0x0A
+#define RK806_NLDO_SLP_REG_OFFSET	0x05
+#define RK806_PLDO_SLP_REG_OFFSET	0x06
+
+#define RK806_BUCK_SEL_CNT		0xff
+#define RK806_LDO_SEL_CNT		0xff
+
+#define RK806_RAMP_RATE_4LSB_PER_1CLK	0x00/* LDO 100mV/uS buck 50mV/us */
+#define RK806_RAMP_RATE_2LSB_PER_1CLK	0x01/* LDO 50mV/uS buck 25mV/us */
+#define RK806_RAMP_RATE_1LSB_PER_1CLK	0x02/* LDO 25mV/uS buck 12.5mV/us */
+#define RK806_RAMP_RATE_1LSB_PER_2CLK	0x03/* LDO 12.5mV/uS buck 6.25mV/us */
+
+#define RK806_RAMP_RATE_1LSB_PER_4CLK	0x04/* LDO 6.28/2mV/uS buck 3.125mV/us */
+#define RK806_RAMP_RATE_1LSB_PER_8CLK	0x05/* LDO 3.12mV/uS buck 1.56mV/us */
+#define RK806_RAMP_RATE_1LSB_PER_13CLK	0x06/* LDO 1.9mV/uS buck 961mV/us */
+#define RK806_RAMP_RATE_1LSB_PER_32CLK	0x07/* LDO 0.78mV/uS buck 0.39mV/us */
+
 /* Ramp rate definitions for buck1 / buck2 only */
 #define RK808_RAMP_RATE_OFFSET		3
 #define RK808_RAMP_RATE_MASK		(3 << RK808_RAMP_RATE_OFFSET)
@@ -117,6 +136,31 @@
 	RK8XX_DESC_COM(_id, _match, _supply, _min, _max, _step, _vreg,	\
 	_vmask, _ereg, _emask, 0, 0, _etime, &rk805_reg_ops)
 
+#define RK806_REGULATOR(_name, _supply_name, _id, _ops,\
+			_n_voltages, _vr, _er, _lr, ctrl_bit, _rr, _rm)\
+[_id] = {\
+		.name = _name,\
+		.supply_name = _supply_name,\
+		.of_match = of_match_ptr(_name),\
+		.regulators_node = of_match_ptr("regulators"),\
+		.id = _id,\
+		.ops = &_ops,\
+		.type = REGULATOR_VOLTAGE,\
+		.n_voltages = _n_voltages,\
+		.linear_ranges = _lr,\
+		.n_linear_ranges = ARRAY_SIZE(_lr),\
+		.vsel_reg = _vr,\
+		.vsel_mask = 0xff,\
+		.enable_reg = _er,\
+		.enable_mask = ENABLE_MASK(ctrl_bit),\
+		.enable_val = ENABLE_MASK(ctrl_bit),\
+		.disable_val = DISABLE_VAL(ctrl_bit),\
+		.of_map_mode = rk8xx_regulator_of_map_mode,\
+		.ramp_reg = _rr,\
+		.ramp_mask = _rm,\
+		.owner = THIS_MODULE,\
+	}
+
 #define RK8XX_DESC(_id, _match, _supply, _min, _max, _step, _vreg,	\
 	_vmask, _ereg, _emask, _etime)					\
 	RK8XX_DESC_COM(_id, _match, _supply, _min, _max, _step, _vreg,	\
@@ -153,6 +197,17 @@
 	RKXX_DESC_SWITCH_COM(_id, _match, _supply, _ereg, _emask,	\
 	0, 0, &rk808_switch_ops)
 
+struct rk8xx_register_bit {
+	u8 reg;
+	u8 bit;
+};
+
+#define RK8XX_REG_BIT(_reg, _bit)					\
+	{								\
+		.reg = _reg,						\
+		.bit = BIT(_bit),						\
+	}
+
 struct rk808_regulator_data {
 	struct gpio_desc *dvs_gpio[2];
 };
@@ -216,6 +271,223 @@ static const unsigned int rk817_buck1_4_ramp_table[] = {
 	3000, 6300, 12500, 25000
 };
 
+static int rk806_get_voltage_sel_regmap(struct regulator_dev *rdev)
+{
+	unsigned int val;
+	int vsel_reg, ret;
+
+	vsel_reg = rdev->desc->vsel_reg;
+
+	ret = regmap_read(rdev->regmap, vsel_reg, &val);
+	if (ret != 0)
+		return ret;
+
+	val &= rdev->desc->vsel_mask;
+	val >>= ffs(rdev->desc->vsel_mask) - 1;
+
+	return val;
+}
+
+static int rk806_set_voltage(struct regulator_dev *rdev,
+			     int req_min_uV, int req_max_uV,
+			     unsigned int *selector)
+{
+	int vsel_reg, ret, sel;
+
+	ret = regulator_map_voltage_linear_range(rdev, req_min_uV, req_max_uV);
+	if (ret >= 0) {
+		*selector = ret;
+		sel = ret;
+	} else {
+		return -EINVAL;
+	}
+
+	vsel_reg = rdev->desc->vsel_reg;
+
+	sel <<= ffs(rdev->desc->vsel_mask) - 1;
+
+	ret = regmap_update_bits(rdev->regmap, vsel_reg,
+				 rdev->desc->vsel_mask, sel);
+
+	return ret;
+}
+
+static int rk806_set_mode_dcdc(struct regulator_dev *rdev, unsigned int mode)
+{
+	int rid = rdev_get_id(rdev);
+	int ctr_bit, reg;
+
+	reg = RK806_POWER_FPWM_EN0 + rid / 8;
+	ctr_bit = rid % 8;
+
+	switch (mode) {
+	case REGULATOR_MODE_FAST:
+		return regmap_update_bits(rdev->regmap, reg,
+					  PWM_MODE_MSK << ctr_bit,
+					  FPWM_MODE << ctr_bit);
+	case REGULATOR_MODE_NORMAL:
+		return regmap_update_bits(rdev->regmap, reg,
+					  PWM_MODE_MSK << ctr_bit,
+					  AUTO_PWM_MODE << ctr_bit);
+	default:
+		dev_err(rdev_get_dev(rdev), "mode unsupported: %u\n", mode);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static unsigned int rk806_get_mode_dcdc(struct regulator_dev *rdev)
+{
+	int rid = rdev_get_id(rdev);
+	int ctr_bit, reg;
+	unsigned int val;
+	int err;
+
+	reg = RK806_POWER_FPWM_EN0 + rid / 8;
+	ctr_bit = rid % 8;
+
+	err = regmap_read(rdev->regmap, reg, &val);
+	if (err)
+		return err;
+
+	if ((val >> ctr_bit) & FPWM_MODE)
+		return REGULATOR_MODE_FAST;
+	else
+		return REGULATOR_MODE_NORMAL;
+}
+
+static const struct rk8xx_register_bit rk806_dcdc_rate2[] = {
+	RK8XX_REG_BIT(0xEB, 0),
+	RK8XX_REG_BIT(0xEB, 1),
+	RK8XX_REG_BIT(0xEB, 2),
+	RK8XX_REG_BIT(0xEB, 3),
+	RK8XX_REG_BIT(0xEB, 4),
+	RK8XX_REG_BIT(0xEB, 5),
+	RK8XX_REG_BIT(0xEB, 6),
+	RK8XX_REG_BIT(0xEB, 7),
+	RK8XX_REG_BIT(0xEA, 0),
+	RK8XX_REG_BIT(0xEA, 1),
+};
+
+static int rk806_set_ramp_delay_dcdc(struct regulator_dev *rdev, int ramp_delay)
+{
+	unsigned int ramp_value = RK806_RAMP_RATE_2LSB_PER_1CLK;
+	int rid = rdev_get_id(rdev);
+	int regval, ret;
+
+	switch (ramp_delay) {
+	case 1 ... 390:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_32CLK;
+		break;
+	case 391 ... 961:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_13CLK;
+		break;
+	case 962 ... 1560:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_8CLK;
+		break;
+	case 1561 ... 3125:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_4CLK;
+		break;
+	case 3126 ... 6250:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_2CLK;
+		break;
+	case 6251 ... 12500:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_1CLK;
+		break;
+	case 12501 ... 25000:
+		ramp_value = RK806_RAMP_RATE_2LSB_PER_1CLK;
+		break;
+	case 25001 ... 50000: /* 50mV/us */
+		ramp_value = RK806_RAMP_RATE_4LSB_PER_1CLK;
+		break;
+	default:
+		dev_warn(rdev_get_dev(rdev),
+			 "%s ramp_delay: %d not supported, setting 10000\n",
+			 rdev->desc->name, ramp_delay);
+	}
+
+	regval = ramp_value << (ffs(rdev->desc->ramp_mask) - 1);
+	ret = regmap_update_bits(rdev->regmap, rdev->desc->ramp_reg,
+				 rdev->desc->ramp_mask, regval);
+	if (ret)
+		return ret;
+
+	regval = (ramp_value >> 2) & 0x1 ? rk806_dcdc_rate2[rid].bit : 0;
+	return regmap_update_bits(rdev->regmap, rk806_dcdc_rate2[rid].reg,
+				  rk806_dcdc_rate2[rid].bit,
+				  regval);
+}
+
+
+static int rk806_set_ramp_delay_ldo(struct regulator_dev *rdev, int ramp_delay)
+{
+	unsigned int ramp_value = RK806_RAMP_RATE_2LSB_PER_1CLK;
+	int regval;
+
+	switch (ramp_delay) {
+	case 1 ... 780:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_32CLK;
+		break;
+	case 781 ... 1900:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_13CLK;
+		break;
+	case 1901 ... 3120:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_8CLK;
+		break;
+	case 3121 ... 6280:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_4CLK;
+		break;
+	case 6281 ... 12500:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_2CLK;
+		break;
+	case 12501 ... 25000:
+		ramp_value = RK806_RAMP_RATE_1LSB_PER_1CLK;
+		break;
+	case 25001 ... 50000:
+		ramp_value = RK806_RAMP_RATE_2LSB_PER_1CLK;
+		break;
+	case 50001 ... 100000:
+		ramp_value = RK806_RAMP_RATE_4LSB_PER_1CLK;
+		break;
+	default:
+		pr_warn("%s ramp_delay: %d not supported, setting 10000\n",
+			rdev->desc->name, ramp_delay);
+	}
+
+	regval = ramp_value << (ffs(rdev->desc->ramp_mask) - 1);
+	return regmap_update_bits(rdev->regmap, rdev->desc->ramp_reg,
+				  rdev->desc->ramp_mask, regval);
+}
+
+static int rk806_set_suspend_voltage_range(struct regulator_dev *rdev, int reg_offset, int uv)
+{
+	int sel = regulator_map_voltage_linear_range(rdev, uv, uv);
+	unsigned int reg;
+
+	if (sel < 0)
+		return -EINVAL;
+
+	reg = rdev->desc->vsel_reg + reg_offset;
+
+	return regmap_update_bits(rdev->regmap, reg, rdev->desc->vsel_mask, sel);
+}
+
+static int rk806_set_suspend_voltage_range_dcdc(struct regulator_dev *rdev, int uv)
+{
+	return rk806_set_suspend_voltage_range(rdev, RK806_DCDC_SLP_REG_OFFSET, uv);
+}
+
+static int rk806_set_suspend_voltage_range_nldo(struct regulator_dev *rdev, int uv)
+{
+	return rk806_set_suspend_voltage_range(rdev, RK806_NLDO_SLP_REG_OFFSET, uv);
+}
+
+static int rk806_set_suspend_voltage_range_pldo(struct regulator_dev *rdev, int uv)
+{
+	return rk806_set_suspend_voltage_range(rdev, RK806_PLDO_SLP_REG_OFFSET, uv);
+}
+
 static int rk808_buck1_2_get_voltage_sel_regmap(struct regulator_dev *rdev)
 {
 	struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev);
@@ -393,6 +665,45 @@ static int rk805_set_suspend_disable(struct regulator_dev *rdev)
 				  0);
 }
 
+static const struct rk8xx_register_bit rk806_suspend_bits[] = {
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 0),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 1),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 2),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 3),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 4),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 5),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 6),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 7),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 6),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 7),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 0),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 1),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 2),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 3),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 4),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN2, 1),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN2, 2),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN2, 3),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN2, 4),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN2, 5),
+	RK8XX_REG_BIT(RK806_POWER_SLP_EN2, 0),
+};
+
+static int rk806_set_suspend_enable(struct regulator_dev *rdev)
+{
+	int rid = rdev_get_id(rdev);
+	return regmap_update_bits(rdev->regmap, rk806_suspend_bits[rid].reg,
+				  rk806_suspend_bits[rid].bit,
+				  rk806_suspend_bits[rid].bit);
+}
+
+static int rk806_set_suspend_disable(struct regulator_dev *rdev)
+{
+	int rid = rdev_get_id(rdev);
+	return regmap_update_bits(rdev->regmap, rk806_suspend_bits[rid].reg,
+				  rk806_suspend_bits[rid].bit, 0);
+}
+
 static int rk808_set_suspend_enable(struct regulator_dev *rdev)
 {
 	unsigned int reg;
@@ -561,6 +872,66 @@ static const struct regulator_ops rk805_switch_ops = {
 	.set_suspend_disable    = rk805_set_suspend_disable,
 };
 
+static const struct regulator_ops rk806_ops_dcdc = {
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+
+	.get_voltage_sel	= rk806_get_voltage_sel_regmap,
+	.set_voltage		= rk806_set_voltage,
+	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
+	.set_mode		= rk806_set_mode_dcdc,
+	.get_mode		= rk806_get_mode_dcdc,
+
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.is_enabled		= regulator_is_enabled_regmap,
+
+	.set_suspend_mode	= rk806_set_mode_dcdc,
+	.set_ramp_delay		= rk806_set_ramp_delay_dcdc,
+
+	.set_suspend_voltage	= rk806_set_suspend_voltage_range_dcdc,
+	.set_suspend_enable	= rk806_set_suspend_enable,
+	.set_suspend_disable	= rk806_set_suspend_disable,
+};
+
+static const struct regulator_ops rk806_ops_nldo = {
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+
+	.get_voltage_sel	= rk806_get_voltage_sel_regmap,
+	.set_voltage		= rk806_set_voltage,
+	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
+
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.is_enabled		= regulator_is_enabled_regmap,
+
+	.set_ramp_delay		= rk806_set_ramp_delay_ldo,
+
+	.set_suspend_voltage	= rk806_set_suspend_voltage_range_nldo,
+	.set_suspend_enable	= rk806_set_suspend_enable,
+	.set_suspend_disable	= rk806_set_suspend_disable,
+};
+
+static const struct regulator_ops rk806_ops_pldo = {
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+
+	.get_voltage_sel	= rk806_get_voltage_sel_regmap,
+	.set_voltage		= rk806_set_voltage,
+	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
+
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.is_enabled		= regulator_is_enabled_regmap,
+
+	.set_ramp_delay		= rk806_set_ramp_delay_ldo,
+
+	.set_suspend_voltage	= rk806_set_suspend_voltage_range_pldo,
+	.set_suspend_enable	= rk806_set_suspend_enable,
+	.set_suspend_disable	= rk806_set_suspend_disable,
+};
+
 static const struct regulator_ops rk808_buck1_2_ops = {
 	.list_voltage		= regulator_list_voltage_linear,
 	.map_voltage		= regulator_map_voltage_linear,
@@ -743,6 +1114,112 @@ static const struct regulator_desc rk805_reg[] = {
 		BIT(2), 400),
 };
 
+static const struct linear_range rk806_buck_voltage_ranges[] = {
+	REGULATOR_LINEAR_RANGE(500000, 0, 160, 6250), /* 500mV ~ 1500mV */
+	REGULATOR_LINEAR_RANGE(1500000, 161, 237, 25000), /* 1500mV ~ 3400mV */
+	REGULATOR_LINEAR_RANGE(3400000, 238, 255, 0),
+};
+
+static const struct linear_range rk806_ldo_voltage_ranges[] = {
+	REGULATOR_LINEAR_RANGE(500000, 0, 232, 12500), /* 500mV ~ 3400mV */
+	REGULATOR_LINEAR_RANGE(3400000, 233, 255, 0), /* 500mV ~ 3400mV */
+};
+
+static const struct regulator_desc rk806_reg[] = {
+	RK806_REGULATOR("dcdc-reg1", "vcc1", RK806_ID_DCDC1, rk806_ops_dcdc,
+			RK806_BUCK_SEL_CNT, RK806_BUCK1_ON_VSEL,
+			RK806_POWER_EN0, rk806_buck_voltage_ranges, 0,
+			RK806_BUCK1_CONFIG, 0xc0),
+	RK806_REGULATOR("dcdc-reg2", "vcc2", RK806_ID_DCDC2, rk806_ops_dcdc,
+			RK806_BUCK_SEL_CNT, RK806_BUCK2_ON_VSEL,
+			RK806_POWER_EN0, rk806_buck_voltage_ranges, 1,
+			RK806_BUCK2_CONFIG, 0xc0),
+	RK806_REGULATOR("dcdc-reg3", "vcc3", RK806_ID_DCDC3, rk806_ops_dcdc,
+			RK806_BUCK_SEL_CNT, RK806_BUCK3_ON_VSEL,
+			RK806_POWER_EN0, rk806_buck_voltage_ranges, 2,
+			RK806_BUCK3_CONFIG, 0xc0),
+	RK806_REGULATOR("dcdc-reg4", "vcc4", RK806_ID_DCDC4, rk806_ops_dcdc,
+			RK806_BUCK_SEL_CNT, RK806_BUCK4_ON_VSEL,
+			RK806_POWER_EN0, rk806_buck_voltage_ranges, 3,
+			RK806_BUCK4_CONFIG, 0xc0),
+
+	RK806_REGULATOR("dcdc-reg5", "vcc5", RK806_ID_DCDC5, rk806_ops_dcdc,
+			RK806_BUCK_SEL_CNT, RK806_BUCK5_ON_VSEL,
+			RK806_POWER_EN1, rk806_buck_voltage_ranges, 0,
+			RK806_BUCK5_CONFIG, 0xc0),
+	RK806_REGULATOR("dcdc-reg6", "vcc6", RK806_ID_DCDC6, rk806_ops_dcdc,
+			RK806_BUCK_SEL_CNT, RK806_BUCK6_ON_VSEL,
+			RK806_POWER_EN1, rk806_buck_voltage_ranges, 1,
+			RK806_BUCK6_CONFIG, 0xc0),
+	RK806_REGULATOR("dcdc-reg7", "vcc7", RK806_ID_DCDC7, rk806_ops_dcdc,
+			RK806_BUCK_SEL_CNT, RK806_BUCK7_ON_VSEL,
+			RK806_POWER_EN1, rk806_buck_voltage_ranges, 2,
+			RK806_BUCK7_CONFIG, 0xc0),
+	RK806_REGULATOR("dcdc-reg8", "vcc8", RK806_ID_DCDC8, rk806_ops_dcdc,
+			RK806_BUCK_SEL_CNT, RK806_BUCK8_ON_VSEL,
+			RK806_POWER_EN1, rk806_buck_voltage_ranges, 3,
+			RK806_BUCK8_CONFIG, 0xc0),
+
+	RK806_REGULATOR("dcdc-reg9", "vcc9", RK806_ID_DCDC9, rk806_ops_dcdc,
+			RK806_BUCK_SEL_CNT, RK806_BUCK9_ON_VSEL,
+			RK806_POWER_EN2, rk806_buck_voltage_ranges, 0,
+			RK806_BUCK9_CONFIG, 0xc0),
+	RK806_REGULATOR("dcdc-reg10", "vcc10", RK806_ID_DCDC10, rk806_ops_dcdc,
+			RK806_BUCK_SEL_CNT, RK806_BUCK10_ON_VSEL,
+			RK806_POWER_EN2, rk806_buck_voltage_ranges, 1,
+			RK806_BUCK10_CONFIG, 0xc0),
+
+	RK806_REGULATOR("nldo-reg1", "vcc13", RK806_ID_NLDO1, rk806_ops_nldo,
+			RK806_LDO_SEL_CNT, RK806_NLDO1_ON_VSEL,
+			RK806_POWER_EN3, rk806_ldo_voltage_ranges, 0,
+			0xEA, 0x38),
+	RK806_REGULATOR("nldo-reg2", "vcc13", RK806_ID_NLDO2, rk806_ops_nldo,
+			RK806_LDO_SEL_CNT, RK806_NLDO2_ON_VSEL,
+			RK806_POWER_EN3, rk806_ldo_voltage_ranges, 1,
+			0xEA, 0x38),
+	RK806_REGULATOR("nldo-reg3", "vcc13", RK806_ID_NLDO3, rk806_ops_nldo,
+			RK806_LDO_SEL_CNT, RK806_NLDO3_ON_VSEL,
+			RK806_POWER_EN3, rk806_ldo_voltage_ranges, 2,
+			0xEA, 0x38),
+	RK806_REGULATOR("nldo-reg4", "vcc14", RK806_ID_NLDO4, rk806_ops_nldo,
+			RK806_LDO_SEL_CNT, RK806_NLDO4_ON_VSEL,
+			RK806_POWER_EN3, rk806_ldo_voltage_ranges, 3,
+			0xEA, 0x38),
+
+	RK806_REGULATOR("nldo-reg5", "vcc14", RK806_ID_NLDO5, rk806_ops_nldo,
+			RK806_LDO_SEL_CNT, RK806_NLDO5_ON_VSEL,
+			RK806_POWER_EN5, rk806_ldo_voltage_ranges, 2,
+			0xEA, 0x38),
+
+	RK806_REGULATOR("pldo-reg1", "vcc11", RK806_ID_PLDO1, rk806_ops_pldo,
+			RK806_LDO_SEL_CNT, RK806_PLDO1_ON_VSEL,
+			RK806_POWER_EN4, rk806_ldo_voltage_ranges, 1,
+			0xEA, 0x38),
+	RK806_REGULATOR("pldo-reg2", "vcc11", RK806_ID_PLDO2, rk806_ops_pldo,
+			RK806_LDO_SEL_CNT, RK806_PLDO2_ON_VSEL,
+			RK806_POWER_EN4, rk806_ldo_voltage_ranges, 2,
+			0xEA, 0x38),
+	RK806_REGULATOR("pldo-reg3", "vcc11", RK806_ID_PLDO3, rk806_ops_pldo,
+			RK806_LDO_SEL_CNT, RK806_PLDO3_ON_VSEL,
+			RK806_POWER_EN4, rk806_ldo_voltage_ranges, 3,
+			0xEA, 0x38),
+
+	RK806_REGULATOR("pldo-reg4", "vcc12", RK806_ID_PLDO4, rk806_ops_pldo,
+			RK806_LDO_SEL_CNT, RK806_PLDO4_ON_VSEL,
+			RK806_POWER_EN5, rk806_ldo_voltage_ranges, 0,
+			0xEA, 0x38),
+	RK806_REGULATOR("pldo-reg5", "vcc12", RK806_ID_PLDO5, rk806_ops_pldo,
+			RK806_LDO_SEL_CNT, RK806_PLDO5_ON_VSEL,
+			RK806_POWER_EN5, rk806_ldo_voltage_ranges, 1,
+			0xEA, 0x38),
+
+	RK806_REGULATOR("pldo-reg6", "vcca", RK806_ID_PLDO6, rk806_ops_pldo,
+			RK806_LDO_SEL_CNT, RK806_PLDO6_ON_VSEL,
+			RK806_POWER_EN4, rk806_ldo_voltage_ranges, 0,
+			0xEA, 0x38),
+};
+
+
 static const struct regulator_desc rk808_reg[] = {
 	{
 		.name = "DCDC_REG1",
@@ -1312,6 +1789,10 @@ static int rk808_regulator_probe(struct platform_device *pdev)
 		regulators = rk805_reg;
 		nregulators = RK805_NUM_REGULATORS;
 		break;
+	case RK806_ID:
+		regulators = rk806_reg;
+		nregulators = ARRAY_SIZE(rk806_reg);
+		break;
 	case RK808_ID:
 		regulators = rk808_reg;
 		nregulators = RK808_NUM_REGULATORS;
@@ -1365,5 +1846,6 @@ MODULE_AUTHOR("Tony xie <tony.xie@rock-chips.com>");
 MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
 MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>");
 MODULE_AUTHOR("Wadim Egorov <w.egorov@phytec.de>");
+MODULE_AUTHOR("Xu Shengfei <xsf@rock-chips.com>");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:rk808-regulator");
-- 
2.35.1


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Re: [PATCHv2 12/13] regulator: rk808: add rk806 support

[Matti Vaittinen]

On 9/8/22 03:31, Sebastian Reichel wrote:
> Add rk806 support to the existing rk808 regulator
> driver.
> 
> This has been implemented using shengfei Xu's rk806
> specific driver from the vendor tree as reference.
> 
> Co-Developed-by: shengfei Xu <xsf@rock-chips.com>
> Signed-off-by: shengfei Xu <xsf@rock-chips.com>
> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
> ---
>   drivers/regulator/rk808-regulator.c | 482 ++++++++++++++++++++++++++++
>   1 file changed, 482 insertions(+)
> 
> diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c
> index fa9fc1aa1ae3..cd1a2cff4a37 100644
> --- a/drivers/regulator/rk808-regulator.c
> +++ b/drivers/regulator/rk808-regulator.c

Thanks for upstreaming the downstream stuff! :)
I wonder if we could drop some code by using the existing helpers? Or 
maybe I am missreading some code. Wouldn't be the first (and probably 
not the last) time...

//snip

>   struct rk808_regulator_data {
>   	struct gpio_desc *dvs_gpio[2];
>   };
> @@ -216,6 +271,223 @@ static const unsigned int rk817_buck1_4_ramp_table[] = {
>   	3000, 6300, 12500, 25000
>   };
>   
> +static int rk806_get_voltage_sel_regmap(struct regulator_dev *rdev)
> +{
> +	unsigned int val;
> +	int vsel_reg, ret;
> +
> +	vsel_reg = rdev->desc->vsel_reg;
> +
> +	ret = regmap_read(rdev->regmap, vsel_reg, &val);
> +	if (ret != 0)
> +		return ret;
> +
> +	val &= rdev->desc->vsel_mask;
> +	val >>= ffs(rdev->desc->vsel_mask) - 1;
> +
> +	return val;
> +}

Could we just use the regulator_get_voltage_sel_regmap()?

> +
> +static int rk806_set_voltage(struct regulator_dev *rdev,
> +			     int req_min_uV, int req_max_uV,
> +			     unsigned int *selector)
> +{
> +	int vsel_reg, ret, sel;
> +
> +	ret = regulator_map_voltage_linear_range(rdev, req_min_uV, req_max_uV);
> +	if (ret >= 0) {
> +		*selector = ret;
> +		sel = ret;
> +	} else {
> +		return -EINVAL;
> +	}
> +
> +	vsel_reg = rdev->desc->vsel_reg;
> +
> +	sel <<= ffs(rdev->desc->vsel_mask) - 1;
> +
> +	ret = regmap_update_bits(rdev->regmap, vsel_reg,
> +				 rdev->desc->vsel_mask, sel);
> +
> +	return ret;
> +}

Hmm. Maybe this is not necessary? I wonder if we could get away just 
with the .map and .set_voltage_sel (regulator_get_voltage_sel_regmap() 
and regulator_map_voltage_linear_range()).

// snip
> +
> +static int rk806_set_ramp_delay_ldo(struct regulator_dev *rdev, int ramp_delay)
> +{
> +	unsigned int ramp_value = RK806_RAMP_RATE_2LSB_PER_1CLK;
> +	int regval;
> +
> +	switch (ramp_delay) {
> +	case 1 ... 780:
> +		ramp_value = RK806_RAMP_RATE_1LSB_PER_32CLK;
> +		break;
> +	case 781 ... 1900:
> +		ramp_value = RK806_RAMP_RATE_1LSB_PER_13CLK;
> +		break;
> +	case 1901 ... 3120:
> +		ramp_value = RK806_RAMP_RATE_1LSB_PER_8CLK;
> +		break;
> +	case 3121 ... 6280:
> +		ramp_value = RK806_RAMP_RATE_1LSB_PER_4CLK;
> +		break;
> +	case 6281 ... 12500:
> +		ramp_value = RK806_RAMP_RATE_1LSB_PER_2CLK;
> +		break;
> +	case 12501 ... 25000:
> +		ramp_value = RK806_RAMP_RATE_1LSB_PER_1CLK;
> +		break;
> +	case 25001 ... 50000:
> +		ramp_value = RK806_RAMP_RATE_2LSB_PER_1CLK;
> +		break;
> +	case 50001 ... 100000:
> +		ramp_value = RK806_RAMP_RATE_4LSB_PER_1CLK;
> +		break;
> +	default:
> +		pr_warn("%s ramp_delay: %d not supported, setting 10000\n",
> +			rdev->desc->name, ramp_delay);
> +	}
> +
> +	regval = ramp_value << (ffs(rdev->desc->ramp_mask) - 1);
> +	return regmap_update_bits(rdev->regmap, rdev->desc->ramp_reg,
> +				  rdev->desc->ramp_mask, regval);
> +}

Do you think we could get rid of this function by populating a 
ramp-delay table and using regulator_set_ramp_delay_regmap()?

Best Regards
	-- Matti

-- 
Matti Vaittinen
Linux kernel developer at ROHM Semiconductors
Oulu Finland

~~ When things go utterly wrong vim users can always type :help! ~~

Re: [PATCHv2 12/13] regulator: rk808: add rk806 support

[Matti Vaittinen]

On 9/8/22 03:31, Sebastian Reichel wrote:
> Add rk806 support to the existing rk808 regulator
> driver.
> 
> This has been implemented using shengfei Xu's rk806
> specific driver from the vendor tree as reference.
> 
> Co-Developed-by: shengfei Xu <xsf@rock-chips.com>
> Signed-off-by: shengfei Xu <xsf@rock-chips.com>
> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
> ---
>   drivers/regulator/rk808-regulator.c | 482 ++++++++++++++++++++++++++++
>   1 file changed, 482 insertions(+)
> 
> diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c
> index fa9fc1aa1ae3..cd1a2cff4a37 100644
> --- a/drivers/regulator/rk808-regulator.c
> +++ b/drivers/regulator/rk808-regulator.c

Thanks for upstreaming the downstream stuff! :)
I wonder if we could drop some code by using the existing helpers? Or 
maybe I am missreading some code. Wouldn't be the first (and probably 
not the last) time...

//snip

>   struct rk808_regulator_data {
>   	struct gpio_desc *dvs_gpio[2];
>   };
> @@ -216,6 +271,223 @@ static const unsigned int rk817_buck1_4_ramp_table[] = {
>   	3000, 6300, 12500, 25000
>   };
>   
> +static int rk806_get_voltage_sel_regmap(struct regulator_dev *rdev)
> +{
> +	unsigned int val;
> +	int vsel_reg, ret;
> +
> +	vsel_reg = rdev->desc->vsel_reg;
> +
> +	ret = regmap_read(rdev->regmap, vsel_reg, &val);
> +	if (ret != 0)
> +		return ret;
> +
> +	val &= rdev->desc->vsel_mask;
> +	val >>= ffs(rdev->desc->vsel_mask) - 1;
> +
> +	return val;
> +}

Could we just use the regulator_get_voltage_sel_regmap()?

> +
> +static int rk806_set_voltage(struct regulator_dev *rdev,
> +			     int req_min_uV, int req_max_uV,
> +			     unsigned int *selector)
> +{
> +	int vsel_reg, ret, sel;
> +
> +	ret = regulator_map_voltage_linear_range(rdev, req_min_uV, req_max_uV);
> +	if (ret >= 0) {
> +		*selector = ret;
> +		sel = ret;
> +	} else {
> +		return -EINVAL;
> +	}
> +
> +	vsel_reg = rdev->desc->vsel_reg;
> +
> +	sel <<= ffs(rdev->desc->vsel_mask) - 1;
> +
> +	ret = regmap_update_bits(rdev->regmap, vsel_reg,
> +				 rdev->desc->vsel_mask, sel);
> +
> +	return ret;
> +}

Hmm. Maybe this is not necessary? I wonder if we could get away just 
with the .map and .set_voltage_sel (regulator_get_voltage_sel_regmap() 
and regulator_map_voltage_linear_range()).

// snip
> +
> +static int rk806_set_ramp_delay_ldo(struct regulator_dev *rdev, int ramp_delay)
> +{
> +	unsigned int ramp_value = RK806_RAMP_RATE_2LSB_PER_1CLK;
> +	int regval;
> +
> +	switch (ramp_delay) {
> +	case 1 ... 780:
> +		ramp_value = RK806_RAMP_RATE_1LSB_PER_32CLK;
> +		break;
> +	case 781 ... 1900:
> +		ramp_value = RK806_RAMP_RATE_1LSB_PER_13CLK;
> +		break;
> +	case 1901 ... 3120:
> +		ramp_value = RK806_RAMP_RATE_1LSB_PER_8CLK;
> +		break;
> +	case 3121 ... 6280:
> +		ramp_value = RK806_RAMP_RATE_1LSB_PER_4CLK;
> +		break;
> +	case 6281 ... 12500:
> +		ramp_value = RK806_RAMP_RATE_1LSB_PER_2CLK;
> +		break;
> +	case 12501 ... 25000:
> +		ramp_value = RK806_RAMP_RATE_1LSB_PER_1CLK;
> +		break;
> +	case 25001 ... 50000:
> +		ramp_value = RK806_RAMP_RATE_2LSB_PER_1CLK;
> +		break;
> +	case 50001 ... 100000:
> +		ramp_value = RK806_RAMP_RATE_4LSB_PER_1CLK;
> +		break;
> +	default:
> +		pr_warn("%s ramp_delay: %d not supported, setting 10000\n",
> +			rdev->desc->name, ramp_delay);
> +	}
> +
> +	regval = ramp_value << (ffs(rdev->desc->ramp_mask) - 1);
> +	return regmap_update_bits(rdev->regmap, rdev->desc->ramp_reg,
> +				  rdev->desc->ramp_mask, regval);
> +}

Do you think we could get rid of this function by populating a 
ramp-delay table and using regulator_set_ramp_delay_regmap()?

Best Regards
	-- Matti

-- 
Matti Vaittinen
Linux kernel developer at ROHM Semiconductors
Oulu Finland

~~ When things go utterly wrong vim users can always type :help! ~~

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Re: [PATCHv2 12/13] regulator: rk808: add rk806 support

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 662 bytes --]

On Thu, Sep 08, 2022 at 10:45:40AM +0300, Matti Vaittinen wrote:
> On 9/8/22 03:31, Sebastian Reichel wrote:

> > +static int rk806_set_voltage(struct regulator_dev *rdev,
> > +			     int req_min_uV, int req_max_uV,
> > +			     unsigned int *selector)

> Hmm. Maybe this is not necessary? I wonder if we could get away just with
> the .map and .set_voltage_sel (regulator_get_voltage_sel_regmap() and
> regulator_map_voltage_linear_range()).

Not just can, should.  Drivers should not mix and match voltage based
and selector based operations, and they should always try to implement
selector based operations unless there's a specific reason to do
otherwise.

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Re: [PATCHv2 12/13] regulator: rk808: add rk806 support

[Mark Brown]

[-- Attachment #1.1: Type: text/plain, Size: 662 bytes --]

On Thu, Sep 08, 2022 at 10:45:40AM +0300, Matti Vaittinen wrote:
> On 9/8/22 03:31, Sebastian Reichel wrote:

> > +static int rk806_set_voltage(struct regulator_dev *rdev,
> > +			     int req_min_uV, int req_max_uV,
> > +			     unsigned int *selector)

> Hmm. Maybe this is not necessary? I wonder if we could get away just with
> the .map and .set_voltage_sel (regulator_get_voltage_sel_regmap() and
> regulator_map_voltage_linear_range()).

Not just can, should.  Drivers should not mix and match voltage based
and selector based operations, and they should always try to implement
selector based operations unless there's a specific reason to do
otherwise.

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[PATCHv2 13/13] ASoC: rk817: Remove 'select REGMAP_I2C'

[Sebastian Reichel]

With the changed rk808 driver (it now can be used with either SPI
or I2C) a configuration without I2C is possible in theory. In that
case selecting REGMAP_I2C is not ok. Since the audio codec driver
does not really care about the regmap binding just drop the select.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 sound/soc/codecs/Kconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index d16b4efb88a7..646494973cfd 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -1192,7 +1192,6 @@ config SND_SOC_RK3328
 config SND_SOC_RK817
 	tristate "Rockchip RK817 audio CODEC"
 	depends on MFD_RK808
-	select REGMAP_I2C
 
 config SND_SOC_RL6231
 	tristate
-- 
2.35.1

[PATCHv2 13/13] ASoC: rk817: Remove 'select REGMAP_I2C'

[Sebastian Reichel]

With the changed rk808 driver (it now can be used with either SPI
or I2C) a configuration without I2C is possible in theory. In that
case selecting REGMAP_I2C is not ok. Since the audio codec driver
does not really care about the regmap binding just drop the select.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 sound/soc/codecs/Kconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index d16b4efb88a7..646494973cfd 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -1192,7 +1192,6 @@ config SND_SOC_RK3328
 config SND_SOC_RK817
 	tristate "Rockchip RK817 audio CODEC"
 	depends on MFD_RK808
-	select REGMAP_I2C
 
 config SND_SOC_RL6231
 	tristate
-- 
2.35.1


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