[PATCH v2 0/3] regulator: max77686/802: Cleanup

[PATCH v2 0/3] regulator: max77686/802: Cleanup

[Krzysztof Kozlowski]

Hi,


Changes since v1
================
1. Rebase on next-20141105, now it should apply cleanly to regulator
   tree.
2. Remove first 3 patches, applied by Mark.


Description
===========
Previously this patchset was part of adding GPIO to max77686
regulator driver [1]. I split it but the goal is the same:
cleanup and simplify the regulator drivers by removing obsolete
board file support so adding new features would be easier.

The patchset removes board file support from regulator drivers
incrementally and in a bisect-friendly way. Thus MFD driver is
updated at the end.

Everything should be pulled at once (preferrably regulator tree).
Rebased on next-20141105.

The changes on max77802 were not tested.
I am kindly asking for testing it because I don't have the board
with Maxim 77802.


[1] [PATCH v3 00/14] regulator: max77686: Add GPIO control
    https://lkml.org/lkml/2014/10/30/270


Best regards,
Krzysztof Kozlowski


Krzysztof Kozlowski (3):
  regulator: max77802: Remove support for board files
  regulator: max77686: Remove support for board files
  mfd: max77686/802: Remove support for board files

 drivers/mfd/Kconfig                  |  1 +
 drivers/mfd/max77686.c               | 23 ---------
 drivers/regulator/max77686.c         | 91 ++++++++---------------------------
 drivers/regulator/max77802.c         | 92 ++++++++----------------------------
 include/linux/mfd/max77686-private.h |  1 -
 include/linux/mfd/max77686.h         | 28 -----------
 6 files changed, 39 insertions(+), 197 deletions(-)

-- 
1.9.1

[PATCH v2 1/3] regulator: max77802: Remove support for board files

[Krzysztof Kozlowski]

The driver is used only on Exynos based boards with DTS support.
Simplify the driver and remove dead (unused) entries in platform_data
structure.

Convert the driver to DTS-only version. Parse all regulators at once,
not one-by-one. Remove dependency on data provided by max77686 MFD
driver. Use new DT style parsing method for regulators init data.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
 drivers/regulator/max77802.c | 92 +++++++++-----------------------------------
 1 file changed, 19 insertions(+), 73 deletions(-)

diff --git a/drivers/regulator/max77802.c b/drivers/regulator/max77802.c
index 8168dbfc532f..9b4d127387b9 100644
--- a/drivers/regulator/max77802.c
+++ b/drivers/regulator/max77802.c
@@ -70,6 +70,7 @@ static unsigned int ramp_table_77802_4bit[] = {
 };
 
 struct max77802_regulator_prv {
+	/* Array indexed by regulator id */
 	unsigned int opmode[MAX77802_REG_MAX];
 };
 
@@ -362,6 +363,8 @@ static struct regulator_ops max77802_buck_dvs_ops = {
 /* LDOs 3-7, 9-14, 18-26, 28, 29, 32-34 */
 #define regulator_77802_desc_p_ldo(num, supply, log)	{		\
 	.name		= "LDO"#num,					\
+	.of_match	= of_match_ptr("LDO"#num),			\
+	.regulators_node	= of_match_ptr("regulators"),		\
 	.id		= MAX77802_LDO##num,				\
 	.supply_name	= "inl"#supply,					\
 	.ops		= &max77802_ldo_ops_logic##log,			\
@@ -380,6 +383,8 @@ static struct regulator_ops max77802_buck_dvs_ops = {
 /* LDOs 1, 2, 8, 15, 17, 27, 30, 35 */
 #define regulator_77802_desc_n_ldo(num, supply, log)   {		\
 	.name		= "LDO"#num,					\
+	.of_match	= of_match_ptr("LDO"#num),			\
+	.regulators_node	= of_match_ptr("regulators"),		\
 	.id		= MAX77802_LDO##num,				\
 	.supply_name	= "inl"#supply,					\
 	.ops		= &max77802_ldo_ops_logic##log,			\
@@ -398,6 +403,8 @@ static struct regulator_ops max77802_buck_dvs_ops = {
 /* BUCKs 1, 6 */
 #define regulator_77802_desc_16_buck(num)	{		\
 	.name		= "BUCK"#num,					\
+	.of_match	= of_match_ptr("BUCK"#num),			\
+	.regulators_node	= of_match_ptr("regulators"),		\
 	.id		= MAX77802_BUCK##num,				\
 	.supply_name	= "inb"#num,					\
 	.ops		= &max77802_buck_16_dvs_ops,			\
@@ -416,6 +423,8 @@ static struct regulator_ops max77802_buck_dvs_ops = {
 /* BUCKS 2-4 */
 #define regulator_77802_desc_234_buck(num)	{		\
 	.name		= "BUCK"#num,					\
+	.of_match	= of_match_ptr("BUCK"#num),			\
+	.regulators_node	= of_match_ptr("regulators"),		\
 	.id		= MAX77802_BUCK##num,				\
 	.supply_name	= "inb"#num,					\
 	.ops		= &max77802_buck_234_ops,			\
@@ -435,6 +444,8 @@ static struct regulator_ops max77802_buck_dvs_ops = {
 /* BUCK 5 */
 #define regulator_77802_desc_buck5(num)		{		\
 	.name		= "BUCK"#num,					\
+	.of_match	= of_match_ptr("BUCK"#num),			\
+	.regulators_node	= of_match_ptr("regulators"),		\
 	.id		= MAX77802_BUCK##num,				\
 	.supply_name	= "inb"#num,					\
 	.ops		= &max77802_buck_dvs_ops,			\
@@ -453,6 +464,8 @@ static struct regulator_ops max77802_buck_dvs_ops = {
 /* BUCKs 7-10 */
 #define regulator_77802_desc_buck7_10(num)	{		\
 	.name		= "BUCK"#num,					\
+	.of_match	= of_match_ptr("BUCK"#num),			\
+	.regulators_node	= of_match_ptr("regulators"),		\
 	.id		= MAX77802_BUCK##num,				\
 	.supply_name	= "inb"#num,					\
 	.ops		= &max77802_buck_dvs_ops,			\
@@ -513,85 +526,19 @@ static const struct regulator_desc regulators[] = {
 	regulator_77802_desc_n_ldo(35, 2, 1),
 };
 
-#ifdef CONFIG_OF
-static int max77802_pmic_dt_parse_pdata(struct platform_device *pdev,
-					struct max77686_platform_data *pdata)
-{
-	struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent);
-	struct device_node *pmic_np, *regulators_np;
-	struct max77686_regulator_data *rdata;
-	struct of_regulator_match rmatch = { };
-	unsigned int i;
-
-	pmic_np = iodev->dev->of_node;
-	regulators_np = of_get_child_by_name(pmic_np, "regulators");
-	if (!regulators_np) {
-		dev_err(&pdev->dev, "could not find regulators sub-node\n");
-		return -EINVAL;
-	}
-
-	pdata->num_regulators = ARRAY_SIZE(regulators);
-	rdata = devm_kzalloc(&pdev->dev, sizeof(*rdata) *
-			     pdata->num_regulators, GFP_KERNEL);
-	if (!rdata) {
-		of_node_put(regulators_np);
-		return -ENOMEM;
-	}
-
-	for (i = 0; i < pdata->num_regulators; i++) {
-		rmatch.name = regulators[i].name;
-		rmatch.init_data = NULL;
-		rmatch.of_node = NULL;
-		if (of_regulator_match(&pdev->dev, regulators_np, &rmatch,
-				       1) != 1) {
-			dev_warn(&pdev->dev, "No matching regulator for '%s'\n",
-				 rmatch.name);
-			continue;
-		}
-		rdata[i].initdata = rmatch.init_data;
-		rdata[i].of_node = rmatch.of_node;
-		rdata[i].id = regulators[i].id;
-	}
-
-	pdata->regulators = rdata;
-	of_node_put(regulators_np);
-
-	return 0;
-}
-#else
-static int max77802_pmic_dt_parse_pdata(struct platform_device *pdev,
-					struct max77686_platform_data *pdata)
-{
-	return 0;
-}
-#endif /* CONFIG_OF */
-
 static int max77802_pmic_probe(struct platform_device *pdev)
 {
 	struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent);
-	struct max77686_platform_data *pdata = dev_get_platdata(iodev->dev);
 	struct max77802_regulator_prv *max77802;
-	int i, ret = 0, val;
+	int i, val;
 	struct regulator_config config = { };
 
-	/* This is allocated by the MFD driver */
-	if (!pdata) {
-		dev_err(&pdev->dev, "no platform data found for regulator\n");
-		return -ENODEV;
-	}
-
 	max77802 = devm_kzalloc(&pdev->dev,
 				sizeof(struct max77802_regulator_prv),
 				GFP_KERNEL);
 	if (!max77802)
 		return -ENOMEM;
 
-	if (iodev->dev->of_node) {
-		ret = max77802_pmic_dt_parse_pdata(pdev, pdata);
-		if (ret)
-			return ret;
-	}
-
 	config.dev = iodev->dev;
 	config.regmap = iodev->regmap;
 	config.driver_data = max77802;
@@ -599,11 +546,9 @@ static int max77802_pmic_probe(struct platform_device *pdev)
 
 	for (i = 0; i < MAX77802_REG_MAX; i++) {
 		struct regulator_dev *rdev;
-		int id = pdata->regulators[i].id;
+		int id = regulators[i].id;
 		int shift = max77802_get_opmode_shift(id);
-
-		config.init_data = pdata->regulators[i].initdata;
-		config.of_node = pdata->regulators[i].of_node;
+		int ret;
 
 		ret = regmap_read(iodev->regmap, regulators[i].enable_reg, &val);
 		if (ret < 0) {
@@ -627,9 +572,10 @@ static int max77802_pmic_probe(struct platform_device *pdev)
 		rdev = devm_regulator_register(&pdev->dev,
 					       &regulators[i], &config);
 		if (IS_ERR(rdev)) {
+			ret = PTR_ERR(rdev);
 			dev_err(&pdev->dev,
-				"regulator init failed for %d\n", i);
-			return PTR_ERR(rdev);
+				"regulator init failed for %d: %d\n", i, ret);
+			return ret;
 		}
 	}
 
-- 
1.9.1

[PATCH v2 2/3] regulator: max77686: Remove support for board files

[Krzysztof Kozlowski]

The driver is used only on Exynos based boards with DTS support.
Simplify the driver and remove dead (unused) entries in platform_data
structure.

Convert the driver to DTS-only version. Parse all regulators at once,
not one-by-one. Remove dependency on data provided by max77686 MFD
driver. Use new DT style parsing method for regulators init data.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
 drivers/regulator/max77686.c | 91 +++++++++-----------------------------------
 1 file changed, 19 insertions(+), 72 deletions(-)

diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c
index 2063532e0763..871b96bcd2d0 100644
--- a/drivers/regulator/max77686.c
+++ b/drivers/regulator/max77686.c
@@ -281,6 +281,8 @@ static struct regulator_ops max77686_buck_dvs_ops = {
 
 #define regulator_desc_ldo(num)		{				\
 	.name		= "LDO"#num,					\
+	.of_match	= of_match_ptr("LDO"#num),			\
+	.regulators_node	= of_match_ptr("voltage-regulators"),	\
 	.id		= MAX77686_LDO##num,				\
 	.ops		= &max77686_ops,				\
 	.type		= REGULATOR_VOLTAGE,				\
@@ -297,6 +299,8 @@ static struct regulator_ops max77686_buck_dvs_ops = {
 }
 #define regulator_desc_lpm_ldo(num)	{				\
 	.name		= "LDO"#num,					\
+	.of_match	= of_match_ptr("LDO"#num),			\
+	.regulators_node	= of_match_ptr("voltage-regulators"),	\
 	.id		= MAX77686_LDO##num,				\
 	.ops		= &max77686_ldo_ops,				\
 	.type		= REGULATOR_VOLTAGE,				\
@@ -313,6 +317,8 @@ static struct regulator_ops max77686_buck_dvs_ops = {
 }
 #define regulator_desc_ldo_low(num)		{			\
 	.name		= "LDO"#num,					\
+	.of_match	= of_match_ptr("LDO"#num),			\
+	.regulators_node	= of_match_ptr("voltage-regulators"),	\
 	.id		= MAX77686_LDO##num,				\
 	.ops		= &max77686_ldo_ops,				\
 	.type		= REGULATOR_VOLTAGE,				\
@@ -329,6 +335,8 @@ static struct regulator_ops max77686_buck_dvs_ops = {
 }
 #define regulator_desc_ldo1_low(num)		{			\
 	.name		= "LDO"#num,					\
+	.of_match	= of_match_ptr("LDO"#num),			\
+	.regulators_node	= of_match_ptr("voltage-regulators"),	\
 	.id		= MAX77686_LDO##num,				\
 	.ops		= &max77686_ops,				\
 	.type		= REGULATOR_VOLTAGE,				\
@@ -345,6 +353,8 @@ static struct regulator_ops max77686_buck_dvs_ops = {
 }
 #define regulator_desc_buck(num)		{			\
 	.name		= "BUCK"#num,					\
+	.of_match	= of_match_ptr("BUCK"#num),			\
+	.regulators_node	= of_match_ptr("voltage-regulators"),	\
 	.id		= MAX77686_BUCK##num,				\
 	.ops		= &max77686_ops,				\
 	.type		= REGULATOR_VOLTAGE,				\
@@ -360,6 +370,8 @@ static struct regulator_ops max77686_buck_dvs_ops = {
 }
 #define regulator_desc_buck1(num)		{			\
 	.name		= "BUCK"#num,					\
+	.of_match	= of_match_ptr("BUCK"#num),			\
+	.regulators_node	= of_match_ptr("voltage-regulators"),	\
 	.id		= MAX77686_BUCK##num,				\
 	.ops		= &max77686_buck1_ops,				\
 	.type		= REGULATOR_VOLTAGE,				\
@@ -375,6 +387,8 @@ static struct regulator_ops max77686_buck_dvs_ops = {
 }
 #define regulator_desc_buck_dvs(num)		{			\
 	.name		= "BUCK"#num,					\
+	.of_match	= of_match_ptr("BUCK"#num),			\
+	.regulators_node	= of_match_ptr("voltage-regulators"),	\
 	.id		= MAX77686_BUCK##num,				\
 	.ops		= &max77686_buck_dvs_ops,			\
 	.type		= REGULATOR_VOLTAGE,				\
@@ -428,86 +442,21 @@ static const struct regulator_desc regulators[] = {
 	regulator_desc_buck(9),
 };
 
-#ifdef CONFIG_OF
-static int max77686_pmic_dt_parse_pdata(struct platform_device *pdev,
-					struct max77686_platform_data *pdata)
-{
-	struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent);
-	struct device_node *pmic_np, *regulators_np;
-	struct max77686_regulator_data *rdata;
-	struct of_regulator_match rmatch = { };
-	unsigned int i;
-
-	pmic_np = iodev->dev->of_node;
-	regulators_np = of_get_child_by_name(pmic_np, "voltage-regulators");
-	if (!regulators_np) {
-		dev_err(&pdev->dev, "could not find regulators sub-node\n");
-		return -EINVAL;
-	}
-
-	pdata->num_regulators = ARRAY_SIZE(regulators);
-	rdata = devm_kzalloc(&pdev->dev, sizeof(*rdata) *
-			     pdata->num_regulators, GFP_KERNEL);
-	if (!rdata) {
-		of_node_put(regulators_np);
-		return -ENOMEM;
-	}
-
-	for (i = 0; i < pdata->num_regulators; i++) {
-		rmatch.name = regulators[i].name;
-		rmatch.init_data = NULL;
-		rmatch.of_node = NULL;
-		of_regulator_match(&pdev->dev, regulators_np, &rmatch, 1);
-		rdata[i].initdata = rmatch.init_data;
-		rdata[i].of_node = rmatch.of_node;
-	}
-
-	pdata->regulators = rdata;
-	of_node_put(regulators_np);
-
-	return 0;
-}
-#else
-static int max77686_pmic_dt_parse_pdata(struct platform_device *pdev,
-					struct max77686_platform_data *pdata)
-{
-	return 0;
-}
-#endif /* CONFIG_OF */
-
 static int max77686_pmic_probe(struct platform_device *pdev)
 {
 	struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent);
-	struct max77686_platform_data *pdata = dev_get_platdata(iodev->dev);
 	struct max77686_data *max77686;
-	int i, ret = 0;
+	int i;
 	struct regulator_config config = { };
 
 	dev_dbg(&pdev->dev, "%s\n", __func__);
 
-	if (!pdata) {
-		dev_err(&pdev->dev, "no platform data found for regulator\n");
-		return -ENODEV;
-	}
-
-	if (iodev->dev->of_node) {
-		ret = max77686_pmic_dt_parse_pdata(pdev, pdata);
-		if (ret)
-			return ret;
-	}
-
-	if (pdata->num_regulators != MAX77686_REGULATORS) {
-		dev_err(&pdev->dev,
-			"Invalid initial data for regulator's initialiation\n");
-		return -EINVAL;
-	}
-
 	max77686 = devm_kzalloc(&pdev->dev, sizeof(struct max77686_data),
 				GFP_KERNEL);
 	if (!max77686)
 		return -ENOMEM;
 
-	config.dev = &pdev->dev;
+	config.dev = iodev->dev;
 	config.regmap = iodev->regmap;
 	config.driver_data = max77686;
 	platform_set_drvdata(pdev, max77686);
@@ -516,16 +465,14 @@ static int max77686_pmic_probe(struct platform_device *pdev)
 		struct regulator_dev *rdev;
 		int id = regulators[i].id;
 
-		config.init_data = pdata->regulators[i].initdata;
-		config.of_node = pdata->regulators[i].of_node;
-
 		max77686->opmode[id] = MAX77686_NORMAL;
 		rdev = devm_regulator_register(&pdev->dev,
 						&regulators[i], &config);
 		if (IS_ERR(rdev)) {
+			int ret = PTR_ERR(rdev);
 			dev_err(&pdev->dev,
-				"regulator init failed for %d\n", i);
-			return PTR_ERR(rdev);
+				"regulator init failed for %d: %d\n", i, ret);
+			return ret;
 		}
 	}
 
-- 
1.9.1

[PATCH v2 3/3] mfd: max77686/802: Remove support for board files

[Krzysztof Kozlowski]

The driver is used only on Exynos based boards with DTS support.
After removal of board file support from max77686 and max77802 regulator
drivers, the MFD driver can be converted to DTS-only version. This
simplifies a little the code:
1. No dead (unused) entries in platform_data structure.
2. More code removed.
3. Regulator driver does not depend on allocated memory
   from MFD driver.
4. It makes also easier extending the regulator driver.

Add to the max77686 MFD driver dependency on CONFIG_OF because without
DTS the regulator drivers (max77686 and max77802) won't bind.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Acked-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/Kconfig                  |  1 +
 drivers/mfd/max77686.c               | 23 -----------------------
 include/linux/mfd/max77686-private.h |  1 -
 include/linux/mfd/max77686.h         | 28 ----------------------------
 4 files changed, 1 insertion(+), 52 deletions(-)

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index cbdb10918af1..fd9d19ccf8c0 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -401,6 +401,7 @@ config MFD_MAX14577
 config MFD_MAX77686
 	bool "Maxim Semiconductor MAX77686/802 PMIC Support"
 	depends on I2C=y
+	depends on OF
 	select MFD_CORE
 	select REGMAP_I2C
 	select REGMAP_IRQ
diff --git a/drivers/mfd/max77686.c b/drivers/mfd/max77686.c
index 929795eae9fc..3da237afacde 100644
--- a/drivers/mfd/max77686.c
+++ b/drivers/mfd/max77686.c
@@ -205,24 +205,10 @@ static const struct of_device_id max77686_pmic_dt_match[] = {
 	{ },
 };
 
-static struct max77686_platform_data *max77686_i2c_parse_dt_pdata(struct device
-								  *dev)
-{
-	struct max77686_platform_data *pd;
-
-	pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);
-	if (!pd)
-		return NULL;
-
-	dev->platform_data = pd;
-	return pd;
-}
-
 static int max77686_i2c_probe(struct i2c_client *i2c,
 			      const struct i2c_device_id *id)
 {
 	struct max77686_dev *max77686 = NULL;
-	struct max77686_platform_data *pdata = dev_get_platdata(&i2c->dev);
 	const struct of_device_id *match;
 	unsigned int data;
 	int ret = 0;
@@ -233,14 +219,6 @@ static int max77686_i2c_probe(struct i2c_client *i2c,
 	const struct mfd_cell *cells;
 	int n_devs;
 
-	if (IS_ENABLED(CONFIG_OF) && i2c->dev.of_node && !pdata)
-		pdata = max77686_i2c_parse_dt_pdata(&i2c->dev);
-
-	if (!pdata) {
-		dev_err(&i2c->dev, "No platform data found.\n");
-		return -EINVAL;
-	}
-
 	max77686 = devm_kzalloc(&i2c->dev,
 				sizeof(struct max77686_dev), GFP_KERNEL);
 	if (!max77686)
@@ -259,7 +237,6 @@ static int max77686_i2c_probe(struct i2c_client *i2c,
 	max77686->dev = &i2c->dev;
 	max77686->i2c = i2c;
 
-	max77686->wakeup = pdata->wakeup;
 	max77686->irq = i2c->irq;
 
 	if (max77686->type == TYPE_MAX77686) {
diff --git a/include/linux/mfd/max77686-private.h b/include/linux/mfd/max77686-private.h
index 960b92ad450d..f5043490d67c 100644
--- a/include/linux/mfd/max77686-private.h
+++ b/include/linux/mfd/max77686-private.h
@@ -447,7 +447,6 @@ struct max77686_dev {
 	struct regmap_irq_chip_data *rtc_irq_data;
 
 	int irq;
-	bool wakeup;
 	struct mutex irqlock;
 	int irq_masks_cur[MAX77686_IRQ_GROUP_NR];
 	int irq_masks_cache[MAX77686_IRQ_GROUP_NR];
diff --git a/include/linux/mfd/max77686.h b/include/linux/mfd/max77686.h
index 553f7d09258a..bb995ab9a575 100644
--- a/include/linux/mfd/max77686.h
+++ b/include/linux/mfd/max77686.h
@@ -119,12 +119,6 @@ enum max77802_regulators {
 	MAX77802_REG_MAX,
 };
 
-struct max77686_regulator_data {
-	int id;
-	struct regulator_init_data *initdata;
-	struct device_node *of_node;
-};
-
 enum max77686_opmode {
 	MAX77686_OPMODE_NORMAL,
 	MAX77686_OPMODE_LP,
@@ -136,26 +130,4 @@ struct max77686_opmode_data {
 	int mode;
 };
 
-struct max77686_platform_data {
-	int ono;
-	int wakeup;
-
-	/* ---- PMIC ---- */
-	struct max77686_regulator_data *regulators;
-	int num_regulators;
-
-	struct max77686_opmode_data *opmode_data;
-
-	/*
-	 * GPIO-DVS feature is not enabled with the current version of
-	 * MAX77686 driver. Buck2/3/4_voltages[0] is used as the default
-	 * voltage at probe. DVS/SELB gpios are set as OUTPUT-LOW.
-	 */
-	int buck234_gpio_dvs[3]; /* GPIO of [0]DVS1, [1]DVS2, [2]DVS3 */
-	int buck234_gpio_selb[3]; /* [0]SELB2, [1]SELB3, [2]SELB4 */
-	unsigned int buck2_voltage[8]; /* buckx_voltage in uV */
-	unsigned int buck3_voltage[8];
-	unsigned int buck4_voltage[8];
-};
-
 #endif /* __LINUX_MFD_MAX77686_H */
-- 
1.9.1

Re: [PATCH v2 1/3] regulator: max77802: Remove support for board files

[Javier Martinez Canillas]

On 11/05/2014 10:47 AM, Krzysztof Kozlowski wrote:
> The driver is used only on Exynos based boards with DTS support.
> Simplify the driver and remove dead (unused) entries in platform_data
> structure.
> 

Tested on an Exynos5420 Peach Pit Chromebook that has a max77802 PMIC.

Acked-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>

Best regards,
Javier

Re: [PATCH v2 3/3] mfd: max77686/802: Remove support for board files

[Javier Martinez Canillas]

On 11/05/2014 10:47 AM, Krzysztof Kozlowski wrote:
> The driver is used only on Exynos based boards with DTS support.
> After removal of board file support from max77686 and max77802 regulator
> drivers, the MFD driver can be converted to DTS-only version. This
> simplifies a little the code:

Acked-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>

Best regards,
Javier

Re: [PATCH v2 3/3] mfd: max77686/802: Remove support for board files

[Krzysztof Kozlowski]

On pią, 2014-11-07 at 00:19 +0100, Javier Martinez Canillas wrote:
> On 11/05/2014 10:47 AM, Krzysztof Kozlowski wrote:
> > The driver is used only on Exynos based boards with DTS support.
> > After removal of board file support from max77686 and max77802 regulator
> > drivers, the MFD driver can be converted to DTS-only version. This
> > simplifies a little the code:
> 
> Acked-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
> Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
> 

Thanks very much!
Best regards,
Krzysztof

Re: [PATCH v2 0/3] regulator: max77686/802: Cleanup

[Lee Jones]

On Wed, 05 Nov 2014, Krzysztof Kozlowski wrote:

> Hi,
> 
> 
> Changes since v1
> ================
> 1. Rebase on next-20141105, now it should apply cleanly to regulator
>    tree.
> 2. Remove first 3 patches, applied by Mark.
> 
> 
> Description
> ===========
> Previously this patchset was part of adding GPIO to max77686
> regulator driver [1]. I split it but the goal is the same:
> cleanup and simplify the regulator drivers by removing obsolete
> board file support so adding new features would be easier.
> 
> The patchset removes board file support from regulator drivers
> incrementally and in a bisect-friendly way. Thus MFD driver is
> updated at the end.
> 
> Everything should be pulled at once (preferrably regulator tree).
> Rebased on next-20141105.

I'm happy for that to happen, so long as Mark sends me a tagged commit
to pull from.

> The changes on max77802 were not tested.
> I am kindly asking for testing it because I don't have the board
> with Maxim 77802.
> 
> 
> [1] [PATCH v3 00/14] regulator: max77686: Add GPIO control
>     https://lkml.org/lkml/2014/10/30/270
> 
> 
> Best regards,
> Krzysztof Kozlowski
> 
> 
> Krzysztof Kozlowski (3):
>   regulator: max77802: Remove support for board files
>   regulator: max77686: Remove support for board files
>   mfd: max77686/802: Remove support for board files
> 
>  drivers/mfd/Kconfig                  |  1 +
>  drivers/mfd/max77686.c               | 23 ---------
>  drivers/regulator/max77686.c         | 91 ++++++++---------------------------
>  drivers/regulator/max77802.c         | 92 ++++++++----------------------------
>  include/linux/mfd/max77686-private.h |  1 -
>  include/linux/mfd/max77686.h         | 28 -----------
>  6 files changed, 39 insertions(+), 197 deletions(-)
> 

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

Re: [PATCH v2 1/3] regulator: max77802: Remove support for board files

[Mark Brown]

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On Wed, Nov 05, 2014 at 10:47:49AM +0100, Krzysztof Kozlowski wrote:
> The driver is used only on Exynos based boards with DTS support.
> Simplify the driver and remove dead (unused) entries in platform_data
> structure.

Applied, thanks.

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Re: [PATCH v2 2/3] regulator: max77686: Remove support for board files

[Mark Brown]

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On Wed, Nov 05, 2014 at 10:47:50AM +0100, Krzysztof Kozlowski wrote:
> The driver is used only on Exynos based boards with DTS support.
> Simplify the driver and remove dead (unused) entries in platform_data
> structure.

Applied, thanks.

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Re: [PATCH v2 0/3] regulator: max77686/802: Cleanup

[Mark Brown]

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On Mon, Nov 10, 2014 at 11:00:22AM +0000, Lee Jones wrote:
> On Wed, 05 Nov 2014, Krzysztof Kozlowski wrote:

> > Everything should be pulled at once (preferrably regulator tree).
> > Rebased on next-20141105.

> I'm happy for that to happen, so long as Mark sends me a tagged commit
> to pull from.

The branches for these drivers are getting a bit big and pulling in
other stuff in the core - it seems like it'd be as easy to just wait
till after the merge window for the deletion of the old code...

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Re: [PATCH v2 0/3] regulator: max77686/802: Cleanup

[Krzysztof Kozlowski]

On śro, 2014-11-26 at 20:43 +0000, Mark Brown wrote:
> On Mon, Nov 10, 2014 at 11:00:22AM +0000, Lee Jones wrote:
> > On Wed, 05 Nov 2014, Krzysztof Kozlowski wrote:
> 
> > > Everything should be pulled at once (preferrably regulator tree).
> > > Rebased on next-20141105.
> 
> > I'm happy for that to happen, so long as Mark sends me a tagged commit
> > to pull from.
> 
> The branches for these drivers are getting a bit big and pulling in
> other stuff in the core - it seems like it'd be as easy to just wait
> till after the merge window for the deletion of the old code...

Do you want me to resend the 3rd patch (mfd) after 3.19 merge window?
I've got also some next changes on top of this series (adding GPIO
parsing to regulator core and to the drivers).

Best regards,
Krzysztof

Re: [PATCH v2 0/3] regulator: max77686/802: Cleanup

[Mark Brown]

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On Thu, Nov 27, 2014 at 08:59:42AM +0100, Krzysztof Kozlowski wrote:

> Do you want me to resend the 3rd patch (mfd) after 3.19 merge window?
> I've got also some next changes on top of this series (adding GPIO
> parsing to regulator core and to the drivers).

That would seem to make sense.  If you're adding support for things to
the core you should probably be sending patches sooner rather than
later...

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Re: [PATCH v2 0/3] regulator: max77686/802: Cleanup

[Krzysztof Kozlowski]

On czw, 2014-11-27 at 10:54 +0000, Mark Brown wrote:
> On Thu, Nov 27, 2014 at 08:59:42AM +0100, Krzysztof Kozlowski wrote:
> 
> > Do you want me to resend the 3rd patch (mfd) after 3.19 merge window?
> > I've got also some next changes on top of this series (adding GPIO
> > parsing to regulator core and to the drivers).
> 
> That would seem to make sense.  If you're adding support for things to
> the core you should probably be sending patches sooner rather than
> later...

OK, I'll send them to get your feedback.

Thanks,
Krzysztof