* [PATCH 2/4] mfd: Add ROHM BD9571MWV-M MFD PMIC driver
[not found] <20170416180801.17828-1-marek.vasut+renesas@gmail.com>
@ 2017-04-16 18:07 ` Marek Vasut
2017-04-24 11:38 ` Lee Jones
2017-04-16 18:08 ` [PATCH 4/4] regulator: Add ROHM BD9571MWV-M PMIC regulator driver Marek Vasut
1 sibling, 1 reply; 6+ messages in thread
From: Marek Vasut @ 2017-04-16 18:07 UTC (permalink / raw)
To: linux-renesas-soc
Cc: Marek Vasut, linux-kernel, Geert Uytterhoeven, Lee Jones
Add the MFD part of the ROHM BD9571MWV-M PMIC driver and MAINTAINERS
entry. The MFD part only specifies the regmap bits for the PMIC and
binds the subdevs together.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: linux-kernel@vger.kernel.org
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Lee Jones <lee.jones@linaro.org>
---
MAINTAINERS | 11 ++
drivers/mfd/Kconfig | 13 +++
drivers/mfd/Makefile | 1 +
drivers/mfd/bd9571mwv.c | 226 ++++++++++++++++++++++++++++++++++++++++++
include/linux/mfd/bd9571mwv.h | 120 ++++++++++++++++++++++
5 files changed, 371 insertions(+)
create mode 100644 drivers/mfd/bd9571mwv.c
create mode 100644 include/linux/mfd/bd9571mwv.h
diff --git a/MAINTAINERS b/MAINTAINERS
index 892e958f6e50..90a96ee06ee4 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10868,6 +10868,17 @@ L: linux-serial@vger.kernel.org
S: Odd Fixes
F: drivers/tty/serial/rp2.*
+ROHM MULTIFUNCTION BD9571MWV-M PMIC DEVICE DRIVERS
+M: Marek Vasut <marek.vasut+renesas@gmail.com>
+L: linux-kernel@vger.kernel.org
+L: linux-renesas-soc@vger.kernel.org
+S: Supported
+F: drivers/mfd/bd9571mwv.c
+F: drivers/regulator/bd9571mwv-regulator.c
+F: drivers/gpio/gpio-bd9571mwv.c
+F: include/linux/mfd/bd9571mwv.h
+F: Documentation/devicetree/bindings/mfd/bd9571mwv.txt
+
ROSE NETWORK LAYER
M: Ralf Baechle <ralf@linux-mips.org>
L: linux-hams@vger.kernel.org
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index de68b5ba8741..fa1f41ef5332 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -133,6 +133,19 @@ config MFD_BCM590XX
help
Support for the BCM590xx PMUs from Broadcom
+config MFD_BD9571MWV
+ tristate "ROHM BD9571MWV PMIC"
+ select MFD_CORE
+ select REGMAP_I2C
+ depends on I2C
+ help
+ Support for the ROHM BD9571MWV PMIC, which contains single
+ voltage regulator, voltage sampling units, GPIO block and
+ watchdog block.
+
+ This driver can also be built as a module. If so, the module
+ will be called bd9571mwv.
+
config MFD_AC100
tristate "X-Powers AC100"
select MFD_CORE
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index fa86dbe65e52..e2c82d2b108d 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_MFD_ACT8945A) += act8945a.o
obj-$(CONFIG_MFD_SM501) += sm501.o
obj-$(CONFIG_MFD_ASIC3) += asic3.o tmio_core.o
obj-$(CONFIG_MFD_BCM590XX) += bcm590xx.o
+obj-$(CONFIG_MFD_BD9571MWV) += bd9571mwv.o
cros_ec_core-objs := cros_ec.o
cros_ec_core-$(CONFIG_ACPI) += cros_ec_acpi_gpe.o
obj-$(CONFIG_MFD_CROS_EC) += cros_ec_core.o
diff --git a/drivers/mfd/bd9571mwv.c b/drivers/mfd/bd9571mwv.c
new file mode 100644
index 000000000000..7382cdf308e8
--- /dev/null
+++ b/drivers/mfd/bd9571mwv.c
@@ -0,0 +1,226 @@
+/*
+ * ROHM BD9571MWV-M MFD driver
+ *
+ * Copyright (C) 2017 Marek Vasut <marek.vasut+renesas@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether expressed or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License version 2 for more details.
+ *
+ * Based on the TPS65086 driver
+ */
+
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/core.h>
+#include <linux/module.h>
+
+#include <linux/mfd/bd9571mwv.h>
+
+static const struct mfd_cell bd9571mwv_cells[] = {
+ { .name = "bd9571mwv-regulator", },
+ { .name = "bd9571mwv-gpio", },
+};
+
+static const struct regmap_range bd9571mwv_readable_yes_ranges[] = {
+ regmap_reg_range(BD9571MWV_VENDOR_CODE, BD9571MWV_PRODUCT_REVISION),
+ regmap_reg_range(BD9571MWV_AVS_SET_MONI, BD9571MWV_AVS_DVFS_VID3),
+ regmap_reg_range(BD9571MWV_VD18_VID, BD9571MWV_VD33_VID),
+ regmap_reg_range(BD9571MWV_DVFS_VINIT, BD9571MWV_DVFS_VINIT),
+ regmap_reg_range(BD9571MWV_DVFS_SETVMAX, BD9571MWV_DVFS_MONIVDAC),
+ regmap_reg_range(BD9571MWV_GPIO_IN, BD9571MWV_GPIO_IN),
+ regmap_reg_range(BD9571MWV_GPIO_INT, BD9571MWV_GPIO_INTMASK),
+ regmap_reg_range(BD9571MWV_INT_INTREQ, BD9571MWV_INT_INTMASK),
+};
+
+static const struct regmap_access_table bd9571mwv_readable_table = {
+ .yes_ranges = bd9571mwv_readable_yes_ranges,
+ .n_yes_ranges = ARRAY_SIZE(bd9571mwv_readable_yes_ranges),
+};
+
+static const struct regmap_range bd9571mwv_writable_yes_ranges[] = {
+ regmap_reg_range(BD9571MWV_DVFS_SETVID, BD9571MWV_DVFS_SETVID),
+ regmap_reg_range(BD9571MWV_GPIO_DIR, BD9571MWV_GPIO_OUT),
+ regmap_reg_range(BD9571MWV_GPIO_INT_SET, BD9571MWV_GPIO_INTMASK),
+ regmap_reg_range(BD9571MWV_INT_INTREQ, BD9571MWV_INT_INTMASK),
+};
+
+static const struct regmap_access_table bd9571mwv_writable_table = {
+ .yes_ranges = bd9571mwv_writable_yes_ranges,
+ .n_yes_ranges = ARRAY_SIZE(bd9571mwv_writable_yes_ranges),
+};
+
+static const struct regmap_range bd9571mwv_volatile_yes_ranges[] = {
+ regmap_reg_range(BD9571MWV_GPIO_IN, BD9571MWV_GPIO_IN),
+ regmap_reg_range(BD9571MWV_GPIO_INT, BD9571MWV_GPIO_INT),
+ regmap_reg_range(BD9571MWV_INT_INTREQ, BD9571MWV_INT_INTREQ),
+};
+
+static const struct regmap_access_table bd9571mwv_volatile_table = {
+ .yes_ranges = bd9571mwv_volatile_yes_ranges,
+ .n_yes_ranges = ARRAY_SIZE(bd9571mwv_volatile_yes_ranges),
+};
+
+static const struct regmap_config bd9571mwv_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .cache_type = REGCACHE_RBTREE,
+ .rd_table = &bd9571mwv_readable_table,
+ .wr_table = &bd9571mwv_writable_table,
+ .volatile_table = &bd9571mwv_volatile_table,
+ .max_register = 0xff,
+};
+
+static const struct regmap_irq bd9571mwv_irqs[] = {
+ REGMAP_IRQ_REG(BD9571MWV_IRQ_MD1, 0,
+ BD9571MWV_INT_INTREQ_MD1_INT),
+ REGMAP_IRQ_REG(BD9571MWV_IRQ_MD2_E1, 0,
+ BD9571MWV_INT_INTREQ_MD2_E1_INT),
+ REGMAP_IRQ_REG(BD9571MWV_IRQ_MD2_E2, 0,
+ BD9571MWV_INT_INTREQ_MD2_E2_INT),
+ REGMAP_IRQ_REG(BD9571MWV_IRQ_PROT_ERR, 0,
+ BD9571MWV_INT_INTREQ_PROT_ERR_INT),
+ REGMAP_IRQ_REG(BD9571MWV_IRQ_GP, 0,
+ BD9571MWV_INT_INTREQ_GP_INT),
+ REGMAP_IRQ_REG(BD9571MWV_IRQ_128H_OF, 0,
+ BD9571MWV_INT_INTREQ_128H_OF_INT),
+ REGMAP_IRQ_REG(BD9571MWV_IRQ_WDT_OF, 0,
+ BD9571MWV_INT_INTREQ_WDT_OF_INT),
+ REGMAP_IRQ_REG(BD9571MWV_IRQ_BKUP_TRG, 0,
+ BD9571MWV_INT_INTREQ_BKUP_TRG_INT),
+};
+
+static struct regmap_irq_chip bd9571mwv_irq_chip = {
+ .name = "bd9571mwv",
+ .status_base = BD9571MWV_INT_INTREQ,
+ .mask_base = BD9571MWV_INT_INTMASK,
+ .ack_base = BD9571MWV_INT_INTREQ,
+ .init_ack_masked = true,
+ .num_regs = 1,
+ .irqs = bd9571mwv_irqs,
+ .num_irqs = ARRAY_SIZE(bd9571mwv_irqs),
+};
+
+static int bd9571mwv_identify(struct bd9571mwv *bd)
+{
+ struct device *dev = bd->dev;
+ unsigned int value;
+ int ret;
+
+ ret = regmap_read(bd->regmap, BD9571MWV_VENDOR_CODE, &value);
+ if (ret) {
+ dev_err(dev, "Failed to read vendor code register\n");
+ return ret;
+ }
+
+ if (value != BD9571MWV_VENDOR_CODE_VAL) {
+ dev_err(dev, "Invalid vendor code ID %02x (expected %02x)\n",
+ value, BD9571MWV_VENDOR_CODE_VAL);
+ return -EINVAL;
+ }
+
+ ret = regmap_read(bd->regmap, BD9571MWV_PRODUCT_CODE, &value);
+ if (ret) {
+ dev_err(dev, "Failed to read product code register\n");
+ return ret;
+ }
+
+ if (value != BD9571MWV_PRODUCT_CODE_VAL) {
+ dev_err(dev, "Invalid product code ID %02x (expected %02x)\n",
+ value, BD9571MWV_PRODUCT_CODE_VAL);
+ return -EINVAL;
+ }
+
+ ret = regmap_read(bd->regmap, BD9571MWV_PRODUCT_REVISION, &value);
+ if (ret) {
+ dev_err(dev, "Failed to read revision register\n");
+ return ret;
+ }
+
+ dev_info(dev, "Device: BD9571MWV rev. %d\n", value & 0xff);
+
+ return 0;
+}
+
+static int bd9571mwv_probe(struct i2c_client *client,
+ const struct i2c_device_id *ids)
+{
+ struct bd9571mwv *bd;
+ int ret;
+
+ bd = devm_kzalloc(&client->dev, sizeof(*bd), GFP_KERNEL);
+ if (!bd)
+ return -ENOMEM;
+
+ i2c_set_clientdata(client, bd);
+ bd->dev = &client->dev;
+ bd->irq = client->irq;
+
+ bd->regmap = devm_regmap_init_i2c(client, &bd9571mwv_regmap_config);
+ if (IS_ERR(bd->regmap)) {
+ dev_err(bd->dev, "Failed to initialize register map\n");
+ return PTR_ERR(bd->regmap);
+ }
+
+ ret = bd9571mwv_identify(bd);
+ if (ret)
+ return ret;
+
+ ret = regmap_add_irq_chip(bd->regmap, bd->irq, IRQF_ONESHOT, 0,
+ &bd9571mwv_irq_chip, &bd->irq_data);
+ if (ret) {
+ dev_err(bd->dev, "Failed to register IRQ chip\n");
+ return ret;
+ }
+
+ ret = mfd_add_devices(bd->dev, PLATFORM_DEVID_AUTO, bd9571mwv_cells,
+ ARRAY_SIZE(bd9571mwv_cells), NULL, 0,
+ regmap_irq_get_domain(bd->irq_data));
+ if (ret) {
+ regmap_del_irq_chip(bd->irq, bd->irq_data);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int bd9571mwv_remove(struct i2c_client *client)
+{
+ struct bd9571mwv *bd = i2c_get_clientdata(client);
+
+ regmap_del_irq_chip(bd->irq, bd->irq_data);
+
+ return 0;
+}
+
+static const struct of_device_id bd9571mwv_of_match_table[] = {
+ { .compatible = "rohm,bd9571mwv", },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, bd9571mwv_of_match_table);
+
+static const struct i2c_device_id bd9571mwv_id_table[] = {
+ { "bd9571mwv", 0 },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(i2c, bd9571mwv_id_table);
+
+static struct i2c_driver bd9571mwv_driver = {
+ .driver = {
+ .name = "bd9571mwv",
+ .of_match_table = bd9571mwv_of_match_table,
+ },
+ .probe = bd9571mwv_probe,
+ .remove = bd9571mwv_remove,
+ .id_table = bd9571mwv_id_table,
+};
+module_i2c_driver(bd9571mwv_driver);
+
+MODULE_AUTHOR("Marek Vasut <marek.vasut+renesas@gmail.com>");
+MODULE_DESCRIPTION("BD9571MWV PMIC Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/mfd/bd9571mwv.h b/include/linux/mfd/bd9571mwv.h
new file mode 100644
index 000000000000..f04f5cccbb1d
--- /dev/null
+++ b/include/linux/mfd/bd9571mwv.h
@@ -0,0 +1,120 @@
+/*
+ * ROHM BD9571MWV-M driver
+ *
+ * Copyright (C) 2017 Marek Vasut <marek.vasut+renesas@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether expressed or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License version 2 for more details.
+ *
+ * Based on the TPS65086 driver
+ */
+
+#ifndef __LINUX_MFD_BD9571MWV_H
+#define __LINUX_MFD_BD9571MWV_H
+
+#include <linux/device.h>
+#include <linux/regmap.h>
+
+/* List of registers for BD9571MWV */
+#define BD9571MWV_VENDOR_CODE 0x00
+#define BD9571MWV_VENDOR_CODE_VAL 0xdb
+#define BD9571MWV_PRODUCT_CODE 0x01
+#define BD9571MWV_PRODUCT_CODE_VAL 0x60
+#define BD9571MWV_PRODUCT_REVISION 0x02
+
+#define BD9571MWV_I2C_FUSA_MODE 0x10
+#define BD9571MWV_I2C_MD2_E1_BIT_1 0x11
+#define BD9571MWV_I2C_MD2_E1_BIT_2 0x12
+
+#define BD9571MWV_BKUP_MODE_CNT 0x20
+#define BD9571MWV_BKUP_MODE_STATUS 0x21
+#define BD9571MWV_BKUP_RECOVERY_CNT 0x22
+#define BD9571MWV_BKUP_CTRL_TIM_CNT 0x23
+#define BD9571MWV_WAITBKUP_WDT_CNT 0x24
+#define BD9571MWV_128H_TIM_CNT 0x26
+#define BD9571MWV_QLLM_CNT 0x27
+
+#define BD9571MWV_AVS_SET_MONI 0x31
+#define BD9571MWV_AVS_VD09_VID0 0x32
+#define BD9571MWV_AVS_VD09_VID1 0x33
+#define BD9571MWV_AVS_VD09_VID2 0x34
+#define BD9571MWV_AVS_VD09_VID3 0x35
+#define BD9571MWV_AVS_DVFS_VID0 0x36
+#define BD9571MWV_AVS_DVFS_VID1 0x37
+#define BD9571MWV_AVS_DVFS_VID2 0x38
+#define BD9571MWV_AVS_DVFS_VID3 0x39
+
+#define BD9571MWV_VD18_VID 0x42
+#define BD9571MWV_VD25_VID 0x43
+#define BD9571MWV_VD33_VID 0x44
+
+#define BD9571MWV_DVFS_VINIT 0x50
+#define BD9571MWV_DVFS_SETVMAX 0x52
+#define BD9571MWV_DVFS_BOOSTVID 0x53
+#define BD9571MWV_DVFS_SETVID 0x54
+#define BD9571MWV_DVFS_MONIVDAC 0x55
+#define BD9571MWV_DVFS_PGD_CNT 0x56
+
+#define BD9571MWV_GPIO_DIR 0x60
+#define BD9571MWV_GPIO_OUT 0x61
+#define BD9571MWV_GPIO_IN 0x62
+#define BD9571MWV_GPIO_DEB 0x63
+#define BD9571MWV_GPIO_INT_SET 0x64
+#define BD9571MWV_GPIO_INT 0x65
+#define BD9571MWV_GPIO_INTMASK 0x66
+
+#define BD9571MWV_REG_KEEP(n) (0x70 + (n))
+
+#define BD9571MWV_PMIC_INTERNAL_STATUS 0x80
+#define BD9571MWV_PROT_ERROR_STATUS0 0x81
+#define BD9571MWV_PROT_ERROR_STATUS1 0x82
+#define BD9571MWV_PROT_ERROR_STATUS2 0x83
+#define BD9571MWV_PROT_ERROR_STATUS3 0x84
+#define BD9571MWV_PROT_ERROR_STATUS4 0x85
+
+#define BD9571MWV_INT_INTREQ 0x90
+#define BD9571MWV_INT_INTREQ_MD1_INT BIT(0)
+#define BD9571MWV_INT_INTREQ_MD2_E1_INT BIT(1)
+#define BD9571MWV_INT_INTREQ_MD2_E2_INT BIT(2)
+#define BD9571MWV_INT_INTREQ_PROT_ERR_INT BIT(3)
+#define BD9571MWV_INT_INTREQ_GP_INT BIT(4)
+#define BD9571MWV_INT_INTREQ_128H_OF_INT BIT(5)
+#define BD9571MWV_INT_INTREQ_WDT_OF_INT BIT(6)
+#define BD9571MWV_INT_INTREQ_BKUP_TRG_INT BIT(7)
+#define BD9571MWV_INT_INTMASK 0x91
+
+#define BD9571MWV_ACCESS_KEY 0xff
+
+/* Define the BD9571MWV IRQ numbers */
+enum bd9571mwv_irqs {
+ BD9571MWV_IRQ_MD1,
+ BD9571MWV_IRQ_MD2_E1,
+ BD9571MWV_IRQ_MD2_E2,
+ BD9571MWV_IRQ_PROT_ERR,
+ BD9571MWV_IRQ_GP,
+ BD9571MWV_IRQ_128H_OF,
+ BD9571MWV_IRQ_WDT_OF,
+ BD9571MWV_IRQ_BKUP_TRG,
+};
+
+/**
+ * struct bd9571mwv - state holder for the bd9571mwv driver
+ *
+ * Device data may be used to access the BD9571MWV chip
+ */
+struct bd9571mwv {
+ struct device *dev;
+ struct regmap *regmap;
+
+ /* IRQ Data */
+ int irq;
+ struct regmap_irq_chip_data *irq_data;
+};
+
+#endif /* __LINUX_MFD_BD9571MWV_H */
--
2.11.0
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 4/4] regulator: Add ROHM BD9571MWV-M PMIC regulator driver
[not found] <20170416180801.17828-1-marek.vasut+renesas@gmail.com>
2017-04-16 18:07 ` [PATCH 2/4] mfd: Add ROHM BD9571MWV-M MFD PMIC driver Marek Vasut
@ 2017-04-16 18:08 ` Marek Vasut
2017-04-18 17:57 ` Mark Brown
1 sibling, 1 reply; 6+ messages in thread
From: Marek Vasut @ 2017-04-16 18:08 UTC (permalink / raw)
To: linux-renesas-soc
Cc: Marek Vasut, linux-kernel, Liam Girdwood, Mark Brown, Geert Uytterhoeven
Add driver for the regulator block in the ROHM BD9571MWV-W MFD PMIC.
This block supports three voltage monitors, VD18, VD25, VD33 for the
1V8, 2V5, 3V3 voltage rails and a single voltage regulator for the
DVFS rail.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: linux-kernel@vger.kernel.org
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
---
drivers/regulator/Kconfig | 11 +++
drivers/regulator/Makefile | 1 +
drivers/regulator/bd9571mwv-regulator.c | 132 ++++++++++++++++++++++++++++++++
3 files changed, 144 insertions(+)
create mode 100644 drivers/regulator/bd9571mwv-regulator.c
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 290eeb88832c..b6e512df6df4 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -163,6 +163,17 @@ config REGULATOR_BCM590XX
BCM590xx PMUs. This will enable support for the software
controllable LDO/Switching regulators.
+config REGULATOR_BD9571MWV
+ tristate "ROHM BD9571MWV Regulators"
+ depends on MFD_BD9571MWV
+ help
+ This driver provides support for the voltage regulators on the
+ ROHM BD9571MWV PMIC. This will enable support for the software
+ controllable regulator and voltage sampling units.
+
+ This driver can also be built as a module. If so, the module
+ will be called bd9571mwv-regulator.
+
config REGULATOR_CPCAP
tristate "Motorola CPCAP regulator"
depends on MFD_CPCAP
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index bf5ed7a9df99..c777c8493bf7 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -24,6 +24,7 @@ obj-$(CONFIG_REGULATOR_AS3711) += as3711-regulator.o
obj-$(CONFIG_REGULATOR_AS3722) += as3722-regulator.o
obj-$(CONFIG_REGULATOR_AXP20X) += axp20x-regulator.o
obj-$(CONFIG_REGULATOR_BCM590XX) += bcm590xx-regulator.o
+obj-$(CONFIG_REGULATOR_BD9571MWV) += bd9571mwv-regulator.o
obj-$(CONFIG_REGULATOR_DA903X) += da903x.o
obj-$(CONFIG_REGULATOR_DA9052) += da9052-regulator.o
obj-$(CONFIG_REGULATOR_DA9055) += da9055-regulator.o
diff --git a/drivers/regulator/bd9571mwv-regulator.c b/drivers/regulator/bd9571mwv-regulator.c
new file mode 100644
index 000000000000..7df369ad0b13
--- /dev/null
+++ b/drivers/regulator/bd9571mwv-regulator.c
@@ -0,0 +1,132 @@
+/*
+ * ROHM BD9571MWV-M regulator driver
+ *
+ * Copyright (C) 2017 Marek Vasut <marek.vasut+renesas@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether expressed or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License version 2 for more details.
+ *
+ * Based on the TPS65086 driver
+ *
+ * NOTE: VD09 is missing
+ */
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+
+#include <linux/mfd/bd9571mwv.h>
+
+enum bd9571mwv_regulators { VD18, VD25, VD33, DVFS };
+
+#define BD9571MWV_REG(_name, _of, _id, _ops, _vr, _vm, _nv, _min, _step, _lmin)\
+ { \
+ .name = _name, \
+ .of_match = of_match_ptr(_of), \
+ .regulators_node = "regulators", \
+ .id = _id, \
+ .ops = &_ops, \
+ .n_voltages = _nv, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ .vsel_reg = _vr, \
+ .vsel_mask = _vm, \
+ .min_uV = _min, \
+ .uV_step = _step, \
+ .linear_min_sel = _lmin, \
+ }
+
+static int bd9571mwv_regulator_is_enabled(struct regulator_dev *reg)
+{
+ /* Always enabled. */
+ return 1;
+}
+
+int bd9571mwv_set_voltage_sel_regmap(struct regulator_dev *rdev,
+ unsigned int sel)
+{
+ return regmap_write_bits(rdev->regmap, BD9571MWV_DVFS_SETVID,
+ rdev->desc->vsel_mask, sel);
+}
+
+/* Operations permitted on voltage regulators */
+static struct regulator_ops reg_ops = {
+ .is_enabled = bd9571mwv_regulator_is_enabled,
+ .set_voltage_sel = bd9571mwv_set_voltage_sel_regmap,
+ .map_voltage = regulator_map_voltage_linear,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .list_voltage = regulator_list_voltage_linear,
+};
+
+/* Operations permitted on voltage monitors */
+static struct regulator_ops vid_ops = {
+ .is_enabled = bd9571mwv_regulator_is_enabled,
+ .map_voltage = regulator_map_voltage_linear,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .list_voltage = regulator_list_voltage_linear,
+};
+
+static struct regulator_desc regulators[] = {
+ BD9571MWV_REG("VD18", "vd18", VD18, vid_ops, BD9571MWV_VD18_VID, 0xf,
+ 16, 1625000, 25000, 0),
+ BD9571MWV_REG("VD25", "vd25", VD25, vid_ops, BD9571MWV_VD25_VID, 0xf,
+ 16, 2150000, 50000, 0),
+ BD9571MWV_REG("VD33", "vd33", VD33, vid_ops, BD9571MWV_VD33_VID, 0xf,
+ 11, 2800000, 100000, 0),
+ BD9571MWV_REG("DVFS", "dvfs", DVFS, reg_ops,
+ BD9571MWV_DVFS_MONIVDAC, 0x7f,
+ 0x80, 600000, 10000, 0x3c),
+};
+
+static int bd9571mwv_regulator_probe(struct platform_device *pdev)
+{
+ struct bd9571mwv *bd = dev_get_drvdata(pdev->dev.parent);
+ struct regulator_config config = { };
+ struct regulator_dev *rdev;
+ int i;
+
+ platform_set_drvdata(pdev, bd);
+
+ config.dev = &pdev->dev;
+ config.dev->of_node = bd->dev->of_node;
+ config.driver_data = bd;
+ config.regmap = bd->regmap;
+
+ for (i = 0; i < ARRAY_SIZE(regulators); i++) {
+ rdev = devm_regulator_register(&pdev->dev, ®ulators[i],
+ &config);
+ if (IS_ERR(rdev)) {
+ dev_err(bd->dev, "failed to register %s regulator\n",
+ pdev->name);
+ return PTR_ERR(rdev);
+ }
+ }
+
+ return 0;
+}
+
+static const struct platform_device_id bd9571mwv_regulator_id_table[] = {
+ { "bd9571mwv-regulator", },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(platform, bd9571mwv_regulator_id_table);
+
+static struct platform_driver bd9571mwv_regulator_driver = {
+ .driver = {
+ .name = "bd9571mwv-regulator",
+ },
+ .probe = bd9571mwv_regulator_probe,
+ .id_table = bd9571mwv_regulator_id_table,
+};
+module_platform_driver(bd9571mwv_regulator_driver);
+
+MODULE_AUTHOR("Marek Vasut <marek.vasut+renesas@gmail.com>");
+MODULE_DESCRIPTION("BD9571MWV Regulator driver");
+MODULE_LICENSE("GPL v2");
--
2.11.0
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH 4/4] regulator: Add ROHM BD9571MWV-M PMIC regulator driver
2017-04-16 18:08 ` [PATCH 4/4] regulator: Add ROHM BD9571MWV-M PMIC regulator driver Marek Vasut
@ 2017-04-18 17:57 ` Mark Brown
2017-04-18 18:39 ` Marek Vasut
0 siblings, 1 reply; 6+ messages in thread
From: Mark Brown @ 2017-04-18 17:57 UTC (permalink / raw)
To: Marek Vasut
Cc: linux-renesas-soc, Marek Vasut, linux-kernel, Liam Girdwood,
Geert Uytterhoeven
[-- Attachment #1: Type: text/plain, Size: 553 bytes --]
On Sun, Apr 16, 2017 at 08:08:01PM +0200, Marek Vasut wrote:
This looks good, a couple of minor things though:
> +static int bd9571mwv_regulator_is_enabled(struct regulator_dev *reg)
> +{
> + /* Always enabled. */
> + return 1;
> +}
This should be the default implementation, no need to open code it.
> +int bd9571mwv_set_voltage_sel_regmap(struct regulator_dev *rdev,
> + unsigned int sel)
> +{
> + return regmap_write_bits(rdev->regmap, BD9571MWV_DVFS_SETVID,
> + rdev->desc->vsel_mask, sel);
> +}
regulator_set_voltage_sel_regmap().
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 4/4] regulator: Add ROHM BD9571MWV-M PMIC regulator driver
2017-04-18 17:57 ` Mark Brown
@ 2017-04-18 18:39 ` Marek Vasut
0 siblings, 0 replies; 6+ messages in thread
From: Marek Vasut @ 2017-04-18 18:39 UTC (permalink / raw)
To: Mark Brown
Cc: linux-renesas-soc, Marek Vasut, linux-kernel, Liam Girdwood,
Geert Uytterhoeven
On 04/18/2017 07:57 PM, Mark Brown wrote:
> On Sun, Apr 16, 2017 at 08:08:01PM +0200, Marek Vasut wrote:
>
> This looks good, a couple of minor things though:
>
>> +static int bd9571mwv_regulator_is_enabled(struct regulator_dev *reg)
>> +{
>> + /* Always enabled. */
>> + return 1;
>> +}
>
> This should be the default implementation, no need to open code it.
Fixed.
>> +int bd9571mwv_set_voltage_sel_regmap(struct regulator_dev *rdev,
>> + unsigned int sel)
>> +{
>> + return regmap_write_bits(rdev->regmap, BD9571MWV_DVFS_SETVID,
>> + rdev->desc->vsel_mask, sel);
>> +}
>
> regulator_set_voltage_sel_regmap().
I'm using different register for reading and setting the voltage, so
this doesn't work in this case. Plus these two registers have different
format to make it more fun.
--
Best regards,
Marek Vasut
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 2/4] mfd: Add ROHM BD9571MWV-M MFD PMIC driver
2017-04-16 18:07 ` [PATCH 2/4] mfd: Add ROHM BD9571MWV-M MFD PMIC driver Marek Vasut
@ 2017-04-24 11:38 ` Lee Jones
2017-04-24 15:03 ` Marek Vasut
0 siblings, 1 reply; 6+ messages in thread
From: Lee Jones @ 2017-04-24 11:38 UTC (permalink / raw)
To: Marek Vasut
Cc: linux-renesas-soc, Marek Vasut, linux-kernel, Geert Uytterhoeven
On Sun, 16 Apr 2017, Marek Vasut wrote:
> Add the MFD part of the ROHM BD9571MWV-M PMIC driver and MAINTAINERS
> entry. The MFD part only specifies the regmap bits for the PMIC and
> binds the subdevs together.
>
> Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
> Cc: linux-kernel@vger.kernel.org
> Cc: Geert Uytterhoeven <geert+renesas@glider.be>
> Cc: Lee Jones <lee.jones@linaro.org>
> ---
> MAINTAINERS | 11 ++
> drivers/mfd/Kconfig | 13 +++
> drivers/mfd/Makefile | 1 +
> drivers/mfd/bd9571mwv.c | 226 ++++++++++++++++++++++++++++++++++++++++++
> include/linux/mfd/bd9571mwv.h | 120 ++++++++++++++++++++++
> 5 files changed, 371 insertions(+)
> create mode 100644 drivers/mfd/bd9571mwv.c
> create mode 100644 include/linux/mfd/bd9571mwv.h
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 892e958f6e50..90a96ee06ee4 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -10868,6 +10868,17 @@ L: linux-serial@vger.kernel.org
> S: Odd Fixes
> F: drivers/tty/serial/rp2.*
>
> +ROHM MULTIFUNCTION BD9571MWV-M PMIC DEVICE DRIVERS
> +M: Marek Vasut <marek.vasut+renesas@gmail.com>
> +L: linux-kernel@vger.kernel.org
> +L: linux-renesas-soc@vger.kernel.org
> +S: Supported
> +F: drivers/mfd/bd9571mwv.c
> +F: drivers/regulator/bd9571mwv-regulator.c
> +F: drivers/gpio/gpio-bd9571mwv.c
> +F: include/linux/mfd/bd9571mwv.h
> +F: Documentation/devicetree/bindings/mfd/bd9571mwv.txt
> +
> ROSE NETWORK LAYER
> M: Ralf Baechle <ralf@linux-mips.org>
> L: linux-hams@vger.kernel.org
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index de68b5ba8741..fa1f41ef5332 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -133,6 +133,19 @@ config MFD_BCM590XX
> help
> Support for the BCM590xx PMUs from Broadcom
>
> +config MFD_BD9571MWV
> + tristate "ROHM BD9571MWV PMIC"
> + select MFD_CORE
> + select REGMAP_I2C
> + depends on I2C
> + help
> + Support for the ROHM BD9571MWV PMIC, which contains single
> + voltage regulator, voltage sampling units, GPIO block and
> + watchdog block.
> +
> + This driver can also be built as a module. If so, the module
> + will be called bd9571mwv.
> +
> config MFD_AC100
> tristate "X-Powers AC100"
> select MFD_CORE
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index fa86dbe65e52..e2c82d2b108d 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -10,6 +10,7 @@ obj-$(CONFIG_MFD_ACT8945A) += act8945a.o
> obj-$(CONFIG_MFD_SM501) += sm501.o
> obj-$(CONFIG_MFD_ASIC3) += asic3.o tmio_core.o
> obj-$(CONFIG_MFD_BCM590XX) += bcm590xx.o
> +obj-$(CONFIG_MFD_BD9571MWV) += bd9571mwv.o
> cros_ec_core-objs := cros_ec.o
> cros_ec_core-$(CONFIG_ACPI) += cros_ec_acpi_gpe.o
> obj-$(CONFIG_MFD_CROS_EC) += cros_ec_core.o
> diff --git a/drivers/mfd/bd9571mwv.c b/drivers/mfd/bd9571mwv.c
> new file mode 100644
> index 000000000000..7382cdf308e8
> --- /dev/null
> +++ b/drivers/mfd/bd9571mwv.c
> @@ -0,0 +1,226 @@
> +/*
> + * ROHM BD9571MWV-M MFD driver
> + *
> + * Copyright (C) 2017 Marek Vasut <marek.vasut+renesas@gmail.com>
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + *
> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any
> + * kind, whether expressed or implied; without even the implied warranty
> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License version 2 for more details.
> + *
> + * Based on the TPS65086 driver
> + */
> +
> +#include <linux/i2c.h>
> +#include <linux/interrupt.h>
> +#include <linux/mfd/core.h>
> +#include <linux/module.h>
> +
> +#include <linux/mfd/bd9571mwv.h>
> +
> +static const struct mfd_cell bd9571mwv_cells[] = {
> + { .name = "bd9571mwv-regulator", },
> + { .name = "bd9571mwv-gpio", },
> +};
> +
> +static const struct regmap_range bd9571mwv_readable_yes_ranges[] = {
> + regmap_reg_range(BD9571MWV_VENDOR_CODE, BD9571MWV_PRODUCT_REVISION),
> + regmap_reg_range(BD9571MWV_AVS_SET_MONI, BD9571MWV_AVS_DVFS_VID3),
> + regmap_reg_range(BD9571MWV_VD18_VID, BD9571MWV_VD33_VID),
> + regmap_reg_range(BD9571MWV_DVFS_VINIT, BD9571MWV_DVFS_VINIT),
> + regmap_reg_range(BD9571MWV_DVFS_SETVMAX, BD9571MWV_DVFS_MONIVDAC),
> + regmap_reg_range(BD9571MWV_GPIO_IN, BD9571MWV_GPIO_IN),
> + regmap_reg_range(BD9571MWV_GPIO_INT, BD9571MWV_GPIO_INTMASK),
> + regmap_reg_range(BD9571MWV_INT_INTREQ, BD9571MWV_INT_INTMASK),
> +};
> +
> +static const struct regmap_access_table bd9571mwv_readable_table = {
> + .yes_ranges = bd9571mwv_readable_yes_ranges,
> + .n_yes_ranges = ARRAY_SIZE(bd9571mwv_readable_yes_ranges),
> +};
> +
> +static const struct regmap_range bd9571mwv_writable_yes_ranges[] = {
> + regmap_reg_range(BD9571MWV_DVFS_SETVID, BD9571MWV_DVFS_SETVID),
> + regmap_reg_range(BD9571MWV_GPIO_DIR, BD9571MWV_GPIO_OUT),
> + regmap_reg_range(BD9571MWV_GPIO_INT_SET, BD9571MWV_GPIO_INTMASK),
> + regmap_reg_range(BD9571MWV_INT_INTREQ, BD9571MWV_INT_INTMASK),
> +};
> +
> +static const struct regmap_access_table bd9571mwv_writable_table = {
> + .yes_ranges = bd9571mwv_writable_yes_ranges,
> + .n_yes_ranges = ARRAY_SIZE(bd9571mwv_writable_yes_ranges),
> +};
> +
> +static const struct regmap_range bd9571mwv_volatile_yes_ranges[] = {
> + regmap_reg_range(BD9571MWV_GPIO_IN, BD9571MWV_GPIO_IN),
> + regmap_reg_range(BD9571MWV_GPIO_INT, BD9571MWV_GPIO_INT),
> + regmap_reg_range(BD9571MWV_INT_INTREQ, BD9571MWV_INT_INTREQ),
> +};
> +
> +static const struct regmap_access_table bd9571mwv_volatile_table = {
> + .yes_ranges = bd9571mwv_volatile_yes_ranges,
> + .n_yes_ranges = ARRAY_SIZE(bd9571mwv_volatile_yes_ranges),
> +};
> +
> +static const struct regmap_config bd9571mwv_regmap_config = {
> + .reg_bits = 8,
> + .val_bits = 8,
> + .cache_type = REGCACHE_RBTREE,
> + .rd_table = &bd9571mwv_readable_table,
> + .wr_table = &bd9571mwv_writable_table,
> + .volatile_table = &bd9571mwv_volatile_table,
> + .max_register = 0xff,
> +};
> +
> +static const struct regmap_irq bd9571mwv_irqs[] = {
> + REGMAP_IRQ_REG(BD9571MWV_IRQ_MD1, 0,
> + BD9571MWV_INT_INTREQ_MD1_INT),
> + REGMAP_IRQ_REG(BD9571MWV_IRQ_MD2_E1, 0,
> + BD9571MWV_INT_INTREQ_MD2_E1_INT),
> + REGMAP_IRQ_REG(BD9571MWV_IRQ_MD2_E2, 0,
> + BD9571MWV_INT_INTREQ_MD2_E2_INT),
> + REGMAP_IRQ_REG(BD9571MWV_IRQ_PROT_ERR, 0,
> + BD9571MWV_INT_INTREQ_PROT_ERR_INT),
> + REGMAP_IRQ_REG(BD9571MWV_IRQ_GP, 0,
> + BD9571MWV_INT_INTREQ_GP_INT),
> + REGMAP_IRQ_REG(BD9571MWV_IRQ_128H_OF, 0,
> + BD9571MWV_INT_INTREQ_128H_OF_INT),
> + REGMAP_IRQ_REG(BD9571MWV_IRQ_WDT_OF, 0,
> + BD9571MWV_INT_INTREQ_WDT_OF_INT),
> + REGMAP_IRQ_REG(BD9571MWV_IRQ_BKUP_TRG, 0,
> + BD9571MWV_INT_INTREQ_BKUP_TRG_INT),
> +};
> +
> +static struct regmap_irq_chip bd9571mwv_irq_chip = {
> + .name = "bd9571mwv",
> + .status_base = BD9571MWV_INT_INTREQ,
> + .mask_base = BD9571MWV_INT_INTMASK,
> + .ack_base = BD9571MWV_INT_INTREQ,
> + .init_ack_masked = true,
> + .num_regs = 1,
> + .irqs = bd9571mwv_irqs,
> + .num_irqs = ARRAY_SIZE(bd9571mwv_irqs),
> +};
> +
> +static int bd9571mwv_identify(struct bd9571mwv *bd)
> +{
> + struct device *dev = bd->dev;
> + unsigned int value;
> + int ret;
> +
> + ret = regmap_read(bd->regmap, BD9571MWV_VENDOR_CODE, &value);
> + if (ret) {
> + dev_err(dev, "Failed to read vendor code register\n");
Nit: Don't you care what the return value is?
> + return ret;
> + }
> +
> + if (value != BD9571MWV_VENDOR_CODE_VAL) {
> + dev_err(dev, "Invalid vendor code ID %02x (expected %02x)\n",
> + value, BD9571MWV_VENDOR_CODE_VAL);
> + return -EINVAL;
> + }
> +
> + ret = regmap_read(bd->regmap, BD9571MWV_PRODUCT_CODE, &value);
> + if (ret) {
> + dev_err(dev, "Failed to read product code register\n");
Same.
> + return ret;
> + }
> +
> + if (value != BD9571MWV_PRODUCT_CODE_VAL) {
> + dev_err(dev, "Invalid product code ID %02x (expected %02x)\n",
> + value, BD9571MWV_PRODUCT_CODE_VAL);
> + return -EINVAL;
> + }
> +
> + ret = regmap_read(bd->regmap, BD9571MWV_PRODUCT_REVISION, &value);
> + if (ret) {
> + dev_err(dev, "Failed to read revision register\n");
Same.
> + return ret;
> + }
> +
> + dev_info(dev, "Device: BD9571MWV rev. %d\n", value & 0xff);
> +
> + return 0;
> +}
> +
> +static int bd9571mwv_probe(struct i2c_client *client,
> + const struct i2c_device_id *ids)
> +{
> + struct bd9571mwv *bd;
> + int ret;
> +
> + bd = devm_kzalloc(&client->dev, sizeof(*bd), GFP_KERNEL);
> + if (!bd)
> + return -ENOMEM;
> +
> + i2c_set_clientdata(client, bd);
> + bd->dev = &client->dev;
> + bd->irq = client->irq;
> +
> + bd->regmap = devm_regmap_init_i2c(client, &bd9571mwv_regmap_config);
> + if (IS_ERR(bd->regmap)) {
> + dev_err(bd->dev, "Failed to initialize register map\n");
> + return PTR_ERR(bd->regmap);
> + }
> +
> + ret = bd9571mwv_identify(bd);
> + if (ret)
> + return ret;
> +
> + ret = regmap_add_irq_chip(bd->regmap, bd->irq, IRQF_ONESHOT, 0,
> + &bd9571mwv_irq_chip, &bd->irq_data);
> + if (ret) {
> + dev_err(bd->dev, "Failed to register IRQ chip\n");
> + return ret;
> + }
> +
> + ret = mfd_add_devices(bd->dev, PLATFORM_DEVID_AUTO, bd9571mwv_cells,
> + ARRAY_SIZE(bd9571mwv_cells), NULL, 0,
> + regmap_irq_get_domain(bd->irq_data));
> + if (ret) {
> + regmap_del_irq_chip(bd->irq, bd->irq_data);
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> +static int bd9571mwv_remove(struct i2c_client *client)
> +{
> + struct bd9571mwv *bd = i2c_get_clientdata(client);
> +
> + regmap_del_irq_chip(bd->irq, bd->irq_data);
> +
> + return 0;
> +}
> +
> +static const struct of_device_id bd9571mwv_of_match_table[] = {
> + { .compatible = "rohm,bd9571mwv", },
> + { /* sentinel */ }
> +};
> +MODULE_DEVICE_TABLE(of, bd9571mwv_of_match_table);
> +
> +static const struct i2c_device_id bd9571mwv_id_table[] = {
> + { "bd9571mwv", 0 },
> + { /* sentinel */ }
> +};
> +MODULE_DEVICE_TABLE(i2c, bd9571mwv_id_table);
> +
> +static struct i2c_driver bd9571mwv_driver = {
> + .driver = {
> + .name = "bd9571mwv",
> + .of_match_table = bd9571mwv_of_match_table,
> + },
> + .probe = bd9571mwv_probe,
> + .remove = bd9571mwv_remove,
> + .id_table = bd9571mwv_id_table,
> +};
> +module_i2c_driver(bd9571mwv_driver);
> +
> +MODULE_AUTHOR("Marek Vasut <marek.vasut+renesas@gmail.com>");
> +MODULE_DESCRIPTION("BD9571MWV PMIC Driver");
> +MODULE_LICENSE("GPL v2");
> diff --git a/include/linux/mfd/bd9571mwv.h b/include/linux/mfd/bd9571mwv.h
> new file mode 100644
> index 000000000000..f04f5cccbb1d
> --- /dev/null
> +++ b/include/linux/mfd/bd9571mwv.h
> @@ -0,0 +1,120 @@
> +/*
> + * ROHM BD9571MWV-M driver
> + *
> + * Copyright (C) 2017 Marek Vasut <marek.vasut+renesas@gmail.com>
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + *
> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any
> + * kind, whether expressed or implied; without even the implied warranty
> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License version 2 for more details.
> + *
> + * Based on the TPS65086 driver
> + */
> +
> +#ifndef __LINUX_MFD_BD9571MWV_H
> +#define __LINUX_MFD_BD9571MWV_H
> +
> +#include <linux/device.h>
> +#include <linux/regmap.h>
> +
> +/* List of registers for BD9571MWV */
> +#define BD9571MWV_VENDOR_CODE 0x00
> +#define BD9571MWV_VENDOR_CODE_VAL 0xdb
> +#define BD9571MWV_PRODUCT_CODE 0x01
> +#define BD9571MWV_PRODUCT_CODE_VAL 0x60
> +#define BD9571MWV_PRODUCT_REVISION 0x02
> +
> +#define BD9571MWV_I2C_FUSA_MODE 0x10
> +#define BD9571MWV_I2C_MD2_E1_BIT_1 0x11
> +#define BD9571MWV_I2C_MD2_E1_BIT_2 0x12
> +
> +#define BD9571MWV_BKUP_MODE_CNT 0x20
> +#define BD9571MWV_BKUP_MODE_STATUS 0x21
> +#define BD9571MWV_BKUP_RECOVERY_CNT 0x22
> +#define BD9571MWV_BKUP_CTRL_TIM_CNT 0x23
> +#define BD9571MWV_WAITBKUP_WDT_CNT 0x24
> +#define BD9571MWV_128H_TIM_CNT 0x26
> +#define BD9571MWV_QLLM_CNT 0x27
> +
> +#define BD9571MWV_AVS_SET_MONI 0x31
> +#define BD9571MWV_AVS_VD09_VID0 0x32
> +#define BD9571MWV_AVS_VD09_VID1 0x33
> +#define BD9571MWV_AVS_VD09_VID2 0x34
> +#define BD9571MWV_AVS_VD09_VID3 0x35
> +#define BD9571MWV_AVS_DVFS_VID0 0x36
> +#define BD9571MWV_AVS_DVFS_VID1 0x37
> +#define BD9571MWV_AVS_DVFS_VID2 0x38
> +#define BD9571MWV_AVS_DVFS_VID3 0x39
> +
> +#define BD9571MWV_VD18_VID 0x42
> +#define BD9571MWV_VD25_VID 0x43
> +#define BD9571MWV_VD33_VID 0x44
> +
> +#define BD9571MWV_DVFS_VINIT 0x50
> +#define BD9571MWV_DVFS_SETVMAX 0x52
> +#define BD9571MWV_DVFS_BOOSTVID 0x53
> +#define BD9571MWV_DVFS_SETVID 0x54
> +#define BD9571MWV_DVFS_MONIVDAC 0x55
> +#define BD9571MWV_DVFS_PGD_CNT 0x56
> +
> +#define BD9571MWV_GPIO_DIR 0x60
> +#define BD9571MWV_GPIO_OUT 0x61
> +#define BD9571MWV_GPIO_IN 0x62
> +#define BD9571MWV_GPIO_DEB 0x63
> +#define BD9571MWV_GPIO_INT_SET 0x64
> +#define BD9571MWV_GPIO_INT 0x65
> +#define BD9571MWV_GPIO_INTMASK 0x66
> +
> +#define BD9571MWV_REG_KEEP(n) (0x70 + (n))
> +
> +#define BD9571MWV_PMIC_INTERNAL_STATUS 0x80
> +#define BD9571MWV_PROT_ERROR_STATUS0 0x81
> +#define BD9571MWV_PROT_ERROR_STATUS1 0x82
> +#define BD9571MWV_PROT_ERROR_STATUS2 0x83
> +#define BD9571MWV_PROT_ERROR_STATUS3 0x84
> +#define BD9571MWV_PROT_ERROR_STATUS4 0x85
> +
> +#define BD9571MWV_INT_INTREQ 0x90
> +#define BD9571MWV_INT_INTREQ_MD1_INT BIT(0)
> +#define BD9571MWV_INT_INTREQ_MD2_E1_INT BIT(1)
> +#define BD9571MWV_INT_INTREQ_MD2_E2_INT BIT(2)
> +#define BD9571MWV_INT_INTREQ_PROT_ERR_INT BIT(3)
> +#define BD9571MWV_INT_INTREQ_GP_INT BIT(4)
> +#define BD9571MWV_INT_INTREQ_128H_OF_INT BIT(5)
> +#define BD9571MWV_INT_INTREQ_WDT_OF_INT BIT(6)
> +#define BD9571MWV_INT_INTREQ_BKUP_TRG_INT BIT(7)
> +#define BD9571MWV_INT_INTMASK 0x91
> +
> +#define BD9571MWV_ACCESS_KEY 0xff
> +
> +/* Define the BD9571MWV IRQ numbers */
> +enum bd9571mwv_irqs {
> + BD9571MWV_IRQ_MD1,
> + BD9571MWV_IRQ_MD2_E1,
> + BD9571MWV_IRQ_MD2_E2,
> + BD9571MWV_IRQ_PROT_ERR,
> + BD9571MWV_IRQ_GP,
> + BD9571MWV_IRQ_128H_OF,
> + BD9571MWV_IRQ_WDT_OF,
> + BD9571MWV_IRQ_BKUP_TRG,
> +};
> +
> +/**
> + * struct bd9571mwv - state holder for the bd9571mwv driver
> + *
> + * Device data may be used to access the BD9571MWV chip
> + */
> +struct bd9571mwv {
> + struct device *dev;
> + struct regmap *regmap;
> +
> + /* IRQ Data */
> + int irq;
> + struct regmap_irq_chip_data *irq_data;
> +};
> +
> +#endif /* __LINUX_MFD_BD9571MWV_H */
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 2/4] mfd: Add ROHM BD9571MWV-M MFD PMIC driver
2017-04-24 11:38 ` Lee Jones
@ 2017-04-24 15:03 ` Marek Vasut
0 siblings, 0 replies; 6+ messages in thread
From: Marek Vasut @ 2017-04-24 15:03 UTC (permalink / raw)
To: Lee Jones
Cc: linux-renesas-soc, Marek Vasut, linux-kernel, Geert Uytterhoeven
On 04/24/2017 01:38 PM, Lee Jones wrote:
> On Sun, 16 Apr 2017, Marek Vasut wrote:
[...]
>> +static int bd9571mwv_identify(struct bd9571mwv *bd)
>> +{
>> + struct device *dev = bd->dev;
>> + unsigned int value;
>> + int ret;
>> +
>> + ret = regmap_read(bd->regmap, BD9571MWV_VENDOR_CODE, &value);
>> + if (ret) {
>> + dev_err(dev, "Failed to read vendor code register\n");
>
> Nit: Don't you care what the return value is?
Not really, but I added the reporting. I wonder whether it shouldn't be
the regmap which reports those kinds of failures, just like ie. when
k*alloc() fails.
>> + return ret;
>> + }
>> +
>> + if (value != BD9571MWV_VENDOR_CODE_VAL) {
>> + dev_err(dev, "Invalid vendor code ID %02x (expected %02x)\n",
>> + value, BD9571MWV_VENDOR_CODE_VAL);
>> + return -EINVAL;
>> + }
>> +
>> + ret = regmap_read(bd->regmap, BD9571MWV_PRODUCT_CODE, &value);
>> + if (ret) {
>> + dev_err(dev, "Failed to read product code register\n");
>
> Same.
And fixed globally ...
--
Best regards,
Marek Vasut
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2017-04-24 15:08 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2017-04-16 18:07 ` [PATCH 2/4] mfd: Add ROHM BD9571MWV-M MFD PMIC driver Marek Vasut
2017-04-24 11:38 ` Lee Jones
2017-04-24 15:03 ` Marek Vasut
2017-04-16 18:08 ` [PATCH 4/4] regulator: Add ROHM BD9571MWV-M PMIC regulator driver Marek Vasut
2017-04-18 17:57 ` Mark Brown
2017-04-18 18:39 ` Marek Vasut
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