Merge tag 'mfd-for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "Changes to existing drivers:
   - Constify structures; throughout the subsystem
   - Move support to DT in; cros_ec
   - DT changes and documentation; cros-ec, max77693, max77686, arizona, da9063
   - ACPI changes and documentation; mfd-core
   - Use different platform specific API in; cros_ec_*, arizona-core
   - Remove unused parent field from; cros_ec_i2c
   - Add wake-up/reset delay in; cross_ec_spi, arizona-core
   - Staticise structures/functions in; cros_ec
   - Remove redundant code; arizona-core, max77686
   - Bugfix; twl4030-power
   - Allow compile test; aat2870, tps65910
   - MAINTAINERS adaptions; samsung, syscon
   - Resource Management (devm_*); arizona-core
   - Refactor Reset code; arizona-core
   - Insist on at least one full boot; arizona-core
   - Trivial formatting; arizona-core
   - Add low-power-sleep; arizona-core
   - IRQ ONESHOT changes; twl4030-irq, mc13xxx-core, wm831x-auxadc, htc-i2cpld,
                          wm8350-core, ab8500-debugfs, ab8500-gpadc, si476x-i2c

  (Re-)moved drivers:
   - Move protocol helpers out to drivers/platform; cros_ec

  New drivers/supported devices:
   - Add support for AXP22x into axp20x
   - Add support for OnKey into da9063-core
   - Add support for Pinctrl into mt6397-core
   - New STMicroelectronics LPC Watchdog driver
   - New STMicroelectronics LPC Real-Time Clock driver"

* tag 'mfd-for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (59 commits)
  mfd: lpc_ich: Assign subdevice ids automatically
  mfd: si476x-i2c: Pass the IRQF_ONESHOT flag
  mfd: ab8500-gpadc: Pass the IRQF_ONESHOT flag
  mfd: ab8500-debugfs: Pass the IRQF_ONESHOT flag
  mfd: wm8350-core: Pass the IRQF_ONESHOT flag
  mfd: htc-i2cpld: Pass the IRQF_ONESHOT flag
  mfd: wm831x-auxadc: Pass the IRQF_ONESHOT flag
  mfd: mc13xxx-core: Pass the IRQF_ONESHOT flag
  mfd: twl4030-irq: Pass the IRQF_ONESHOT flag
  mfd: mt6397-core: Add GPIO sub-module support
  mfd: arizona: Add convience defines for micd_rate/micd_bias_starttime
  mfd: dt: Add bindings for DA9063 OnKey
  mfd: da9063: Add support for OnKey driver
  mfd: arizona: Fix incorrect Makefile conditionals
  mfd: arizona: Add stub for wm5102_patch()
  mfd: Check ACPI device companion before checking resources
  Documentation: Add WM8998/WM1814 device tree bindings
  mfd: arizona: Split INx_MODE into two fields
  mfd: wm5110: Add delay before releasing reset line
  mfd: arizona: Add better support for system suspend
  ...

1 files changed, 190 insertions, 49 deletions

diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c
index e4331f5e5d7d..646829132b59 100644
--- a/drivers/regulator/axp20x-regulator.c
+++ b/drivers/regulator/axp20x-regulator.c
@@ -27,20 +27,24 @@
 #define AXP20X_IO_ENABLED		0x03
 #define AXP20X_IO_DISABLED		0x07
 
+#define AXP22X_IO_ENABLED		0x04
+#define AXP22X_IO_DISABLED		0x03
+
 #define AXP20X_WORKMODE_DCDC2_MASK	BIT(2)
 #define AXP20X_WORKMODE_DCDC3_MASK	BIT(1)
+#define AXP22X_WORKMODE_DCDCX_MASK(x)	BIT(x)
 
 #define AXP20X_FREQ_DCDC_MASK		0x0f
 
-#define AXP20X_DESC_IO(_id, _match, _supply, _min, _max, _step, _vreg, _vmask,	\
-		       _ereg, _emask, _enable_val, _disable_val)		\
-	[AXP20X_##_id] = {							\
+#define AXP_DESC_IO(_family, _id, _match, _supply, _min, _max, _step, _vreg,	\
+		    _vmask, _ereg, _emask, _enable_val, _disable_val)		\
+	[_family##_##_id] = {							\
 		.name		= #_id,						\
 		.supply_name	= (_supply),					\
 		.of_match	= of_match_ptr(_match),				\
 		.regulators_node = of_match_ptr("regulators"),			\
 		.type		= REGULATOR_VOLTAGE,				\
-		.id		= AXP20X_##_id,					\
+		.id		= _family##_##_id,				\
 		.n_voltages	= (((_max) - (_min)) / (_step) + 1),		\
 		.owner		= THIS_MODULE,					\
 		.min_uV		= (_min) * 1000,				\
@@ -54,15 +58,15 @@
 		.ops		= &axp20x_ops,					\
 	}
 
-#define AXP20X_DESC(_id, _match, _supply, _min, _max, _step, _vreg, _vmask,	\
-		    _ereg, _emask)						\
-	[AXP20X_##_id] = {							\
+#define AXP_DESC(_family, _id, _match, _supply, _min, _max, _step, _vreg,	\
+		 _vmask, _ereg, _emask) 					\
+	[_family##_##_id] = {							\
 		.name		= #_id,						\
 		.supply_name	= (_supply),					\
 		.of_match	= of_match_ptr(_match),				\
 		.regulators_node = of_match_ptr("regulators"),			\
 		.type		= REGULATOR_VOLTAGE,				\
-		.id		= AXP20X_##_id,					\
+		.id		= _family##_##_id,				\
 		.n_voltages	= (((_max) - (_min)) / (_step) + 1),		\
 		.owner		= THIS_MODULE,					\
 		.min_uV		= (_min) * 1000,				\
@@ -74,29 +78,49 @@
 		.ops		= &axp20x_ops,					\
 	}
 
-#define AXP20X_DESC_FIXED(_id, _match, _supply, _volt)				\
-	[AXP20X_##_id] = {							\
+#define AXP_DESC_SW(_family, _id, _match, _supply, _min, _max, _step, _vreg,	\
+		    _vmask, _ereg, _emask) 					\
+	[_family##_##_id] = {							\
 		.name		= #_id,						\
 		.supply_name	= (_supply),					\
 		.of_match	= of_match_ptr(_match),				\
 		.regulators_node = of_match_ptr("regulators"),			\
 		.type		= REGULATOR_VOLTAGE,				\
-		.id		= AXP20X_##_id,					\
+		.id		= _family##_##_id,				\
+		.n_voltages	= (((_max) - (_min)) / (_step) + 1),		\
+		.owner		= THIS_MODULE,					\
+		.min_uV		= (_min) * 1000,				\
+		.uV_step	= (_step) * 1000,				\
+		.vsel_reg	= (_vreg),					\
+		.vsel_mask	= (_vmask),					\
+		.enable_reg	= (_ereg),					\
+		.enable_mask	= (_emask),					\
+		.ops		= &axp20x_ops_sw,				\
+	}
+
+#define AXP_DESC_FIXED(_family, _id, _match, _supply, _volt)			\
+	[_family##_##_id] = {							\
+		.name		= #_id,						\
+		.supply_name	= (_supply),					\
+		.of_match	= of_match_ptr(_match),				\
+		.regulators_node = of_match_ptr("regulators"),			\
+		.type		= REGULATOR_VOLTAGE,				\
+		.id		= _family##_##_id,				\
 		.n_voltages	= 1,						\
 		.owner		= THIS_MODULE,					\
 		.min_uV		= (_volt) * 1000,				\
 		.ops		= &axp20x_ops_fixed				\
 	}
 
-#define AXP20X_DESC_TABLE(_id, _match, _supply, _table, _vreg, _vmask, _ereg,	\
-			  _emask)						\
-	[AXP20X_##_id] = {							\
+#define AXP_DESC_TABLE(_family, _id, _match, _supply, _table, _vreg, _vmask,	\
+		       _ereg, _emask)						\
+	[_family##_##_id] = {							\
 		.name		= #_id,						\
 		.supply_name	= (_supply),					\
 		.of_match	= of_match_ptr(_match),				\
 		.regulators_node = of_match_ptr("regulators"),			\
 		.type		= REGULATOR_VOLTAGE,				\
-		.id		= AXP20X_##_id,					\
+		.id		= _family##_##_id,				\
 		.n_voltages	= ARRAY_SIZE(_table),				\
 		.owner		= THIS_MODULE,					\
 		.vsel_reg	= (_vreg),					\
@@ -135,38 +159,118 @@ static struct regulator_ops axp20x_ops = {
 	.is_enabled		= regulator_is_enabled_regmap,
 };
 
+static struct regulator_ops axp20x_ops_sw = {
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.list_voltage		= regulator_list_voltage_linear,
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.is_enabled		= regulator_is_enabled_regmap,
+};
+
 static const struct regulator_desc axp20x_regulators[] = {
-	AXP20X_DESC(DCDC2, "dcdc2", "vin2", 700, 2275, 25, AXP20X_DCDC2_V_OUT,
-		    0x3f, AXP20X_PWR_OUT_CTRL, 0x10),
-	AXP20X_DESC(DCDC3, "dcdc3", "vin3", 700, 3500, 25, AXP20X_DCDC3_V_OUT,
-		    0x7f, AXP20X_PWR_OUT_CTRL, 0x02),
-	AXP20X_DESC_FIXED(LDO1, "ldo1", "acin", 1300),
-	AXP20X_DESC(LDO2, "ldo2", "ldo24in", 1800, 3300, 100,
-		    AXP20X_LDO24_V_OUT, 0xf0, AXP20X_PWR_OUT_CTRL, 0x04),
-	AXP20X_DESC(LDO3, "ldo3", "ldo3in", 700, 3500, 25, AXP20X_LDO3_V_OUT,
-		    0x7f, AXP20X_PWR_OUT_CTRL, 0x40),
-	AXP20X_DESC_TABLE(LDO4, "ldo4", "ldo24in", axp20x_ldo4_data,
-			  AXP20X_LDO24_V_OUT, 0x0f, AXP20X_PWR_OUT_CTRL, 0x08),
-	AXP20X_DESC_IO(LDO5, "ldo5", "ldo5in", 1800, 3300, 100,
-		       AXP20X_LDO5_V_OUT, 0xf0, AXP20X_GPIO0_CTRL, 0x07,
-		       AXP20X_IO_ENABLED, AXP20X_IO_DISABLED),
+	AXP_DESC(AXP20X, DCDC2, "dcdc2", "vin2", 700, 2275, 25,
+		 AXP20X_DCDC2_V_OUT, 0x3f, AXP20X_PWR_OUT_CTRL, 0x10),
+	AXP_DESC(AXP20X, DCDC3, "dcdc3", "vin3", 700, 3500, 25,
+		 AXP20X_DCDC3_V_OUT, 0x7f, AXP20X_PWR_OUT_CTRL, 0x02),
+	AXP_DESC_FIXED(AXP20X, LDO1, "ldo1", "acin", 1300),
+	AXP_DESC(AXP20X, LDO2, "ldo2", "ldo24in", 1800, 3300, 100,
+		 AXP20X_LDO24_V_OUT, 0xf0, AXP20X_PWR_OUT_CTRL, 0x04),
+	AXP_DESC(AXP20X, LDO3, "ldo3", "ldo3in", 700, 3500, 25,
+		 AXP20X_LDO3_V_OUT, 0x7f, AXP20X_PWR_OUT_CTRL, 0x40),
+	AXP_DESC_TABLE(AXP20X, LDO4, "ldo4", "ldo24in", axp20x_ldo4_data,
+		       AXP20X_LDO24_V_OUT, 0x0f, AXP20X_PWR_OUT_CTRL, 0x08),
+	AXP_DESC_IO(AXP20X, LDO5, "ldo5", "ldo5in", 1800, 3300, 100,
+		    AXP20X_LDO5_V_OUT, 0xf0, AXP20X_GPIO0_CTRL, 0x07,
+		    AXP20X_IO_ENABLED, AXP20X_IO_DISABLED),
+};
+
+static const struct regulator_desc axp22x_regulators[] = {
+	AXP_DESC(AXP22X, DCDC1, "dcdc1", "vin1", 1600, 3400, 100,
+		 AXP22X_DCDC1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(1)),
+	AXP_DESC(AXP22X, DCDC2, "dcdc2", "vin2", 600, 1540, 20,
+		 AXP22X_DCDC2_V_OUT, 0x3f, AXP22X_PWR_OUT_CTRL1, BIT(2)),
+	AXP_DESC(AXP22X, DCDC3, "dcdc3", "vin3", 600, 1860, 20,
+		 AXP22X_DCDC3_V_OUT, 0x3f, AXP22X_PWR_OUT_CTRL1, BIT(3)),
+	AXP_DESC(AXP22X, DCDC4, "dcdc4", "vin4", 600, 1540, 20,
+		 AXP22X_DCDC4_V_OUT, 0x3f, AXP22X_PWR_OUT_CTRL1, BIT(3)),
+	AXP_DESC(AXP22X, DCDC5, "dcdc5", "vin5", 1000, 2550, 50,
+		 AXP22X_DCDC5_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(4)),
+	/* secondary switchable output of DCDC1 */
+	AXP_DESC_SW(AXP22X, DC1SW, "dc1sw", "dcdc1", 1600, 3400, 100,
+		    AXP22X_DCDC1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(7)),
+	/* LDO regulator internally chained to DCDC5 */
+	AXP_DESC(AXP22X, DC5LDO, "dc5ldo", "dcdc5", 700, 1400, 100,
+		 AXP22X_DC5LDO_V_OUT, 0x7, AXP22X_PWR_OUT_CTRL1, BIT(0)),
+	AXP_DESC(AXP22X, ALDO1, "aldo1", "aldoin", 700, 3300, 100,
+		 AXP22X_ALDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(6)),
+	AXP_DESC(AXP22X, ALDO2, "aldo2", "aldoin", 700, 3300, 100,
+		 AXP22X_ALDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(7)),
+	AXP_DESC(AXP22X, ALDO3, "aldo3", "aldoin", 700, 3300, 100,
+		 AXP22X_ALDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(7)),
+	AXP_DESC(AXP22X, DLDO1, "dldo1", "dldoin", 700, 3300, 100,
+		 AXP22X_DLDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(3)),
+	AXP_DESC(AXP22X, DLDO2, "dldo2", "dldoin", 700, 3300, 100,
+		 AXP22X_DLDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(4)),
+	AXP_DESC(AXP22X, DLDO3, "dldo3", "dldoin", 700, 3300, 100,
+		 AXP22X_DLDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(5)),
+	AXP_DESC(AXP22X, DLDO4, "dldo4", "dldoin", 700, 3300, 100,
+		 AXP22X_DLDO4_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(6)),
+	AXP_DESC(AXP22X, ELDO1, "eldo1", "eldoin", 700, 3300, 100,
+		 AXP22X_ELDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(0)),
+	AXP_DESC(AXP22X, ELDO2, "eldo2", "eldoin", 700, 3300, 100,
+		 AXP22X_ELDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(1)),
+	AXP_DESC(AXP22X, ELDO3, "eldo3", "eldoin", 700, 3300, 100,
+		 AXP22X_ELDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(2)),
+	AXP_DESC_IO(AXP22X, LDO_IO0, "ldo_io0", "ips", 1800, 3300, 100,
+		    AXP22X_LDO_IO0_V_OUT, 0x1f, AXP20X_GPIO0_CTRL, 0x07,
+		    AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
+	AXP_DESC_IO(AXP22X, LDO_IO1, "ldo_io1", "ips", 1800, 3300, 100,
+		    AXP22X_LDO_IO1_V_OUT, 0x1f, AXP20X_GPIO1_CTRL, 0x07,
+		    AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
+	AXP_DESC_FIXED(AXP22X, RTC_LDO, "rtc_ldo", "ips", 3000),
 };
 
 static int axp20x_set_dcdc_freq(struct platform_device *pdev, u32 dcdcfreq)
 {
 	struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent);
+	u32 min, max, def, step;
+
+	switch (axp20x->variant) {
+	case AXP202_ID:
+	case AXP209_ID:
+		min = 750;
+		max = 1875;
+		def = 1500;
+		step = 75;
+		break;
+	case AXP221_ID:
+		min = 1800;
+		max = 4050;
+		def = 3000;
+		step = 150;
+		break;
+	default:
+		dev_err(&pdev->dev,
+			"Setting DCDC frequency for unsupported AXP variant\n");
+		return -EINVAL;
+	}
+
+	if (dcdcfreq == 0)
+		dcdcfreq = def;
 
-	if (dcdcfreq < 750) {
-		dcdcfreq = 750;
-		dev_warn(&pdev->dev, "DCDC frequency too low. Set to 750kHz\n");
+	if (dcdcfreq < min) {
+		dcdcfreq = min;
+		dev_warn(&pdev->dev, "DCDC frequency too low. Set to %ukHz\n",
+			 min);
 	}
 
-	if (dcdcfreq > 1875) {
-		dcdcfreq = 1875;
-		dev_warn(&pdev->dev, "DCDC frequency too high. Set to 1875kHz\n");
+	if (dcdcfreq > max) {
+		dcdcfreq = max;
+		dev_warn(&pdev->dev, "DCDC frequency too high. Set to %ukHz\n",
+			 max);
 	}
 
-	dcdcfreq = (dcdcfreq - 750) / 75;
+	dcdcfreq = (dcdcfreq - min) / step;
 
 	return regmap_update_bits(axp20x->regmap, AXP20X_DCDC_FREQ,
 				  AXP20X_FREQ_DCDC_MASK, dcdcfreq);
@@ -176,7 +280,7 @@ static int axp20x_regulator_parse_dt(struct platform_device *pdev)
 {
 	struct device_node *np, *regulators;
 	int ret;
-	u32 dcdcfreq;
+	u32 dcdcfreq = 0;
 
 	np = of_node_get(pdev->dev.parent->of_node);
 	if (!np)
@@ -186,7 +290,6 @@ static int axp20x_regulator_parse_dt(struct platform_device *pdev)
 	if (!regulators) {
 		dev_warn(&pdev->dev, "regulators node not found\n");
 	} else {
-		dcdcfreq = 1500;
 		of_property_read_u32(regulators, "x-powers,dcdc-freq", &dcdcfreq);
 		ret = axp20x_set_dcdc_freq(pdev, dcdcfreq);
 		if (ret < 0) {
@@ -202,15 +305,35 @@ static int axp20x_regulator_parse_dt(struct platform_device *pdev)
 
 static int axp20x_set_dcdc_workmode(struct regulator_dev *rdev, int id, u32 workmode)
 {
-	unsigned int mask = AXP20X_WORKMODE_DCDC2_MASK;
+	struct axp20x_dev *axp20x = rdev_get_drvdata(rdev);
+	unsigned int mask;
 
-	if ((id != AXP20X_DCDC2) && (id != AXP20X_DCDC3))
-		return -EINVAL;
+	switch (axp20x->variant) {
+	case AXP202_ID:
+	case AXP209_ID:
+		if ((id != AXP20X_DCDC2) && (id != AXP20X_DCDC3))
+			return -EINVAL;
+
+		mask = AXP20X_WORKMODE_DCDC2_MASK;
+		if (id == AXP20X_DCDC3)
+			mask = AXP20X_WORKMODE_DCDC3_MASK;
+
+		workmode <<= ffs(mask) - 1;
+		break;
 
-	if (id == AXP20X_DCDC3)
-		mask = AXP20X_WORKMODE_DCDC3_MASK;
+	case AXP221_ID:
+		if (id < AXP22X_DCDC1 || id > AXP22X_DCDC5)
+			return -EINVAL;
 
-	workmode <<= ffs(mask) - 1;
+		mask = AXP22X_WORKMODE_DCDCX_MASK(id - AXP22X_DCDC1);
+		workmode <<= id - AXP22X_DCDC1;
+		break;
+
+	default:
+		/* should not happen */
+		WARN_ON(1);
+		return -EINVAL;
+	}
 
 	return regmap_update_bits(rdev->regmap, AXP20X_DCDC_MODE, mask, workmode);
 }
@@ -219,22 +342,40 @@ static int axp20x_regulator_probe(struct platform_device *pdev)
 {
 	struct regulator_dev *rdev;
 	struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent);
+	const struct regulator_desc *regulators;
 	struct regulator_config config = {
 		.dev = pdev->dev.parent,
 		.regmap = axp20x->regmap,
+		.driver_data = axp20x,
 	};
-	int ret, i;
+	int ret, i, nregulators;
 	u32 workmode;
 
+	switch (axp20x->variant) {
+	case AXP202_ID:
+	case AXP209_ID:
+		regulators = axp20x_regulators;
+		nregulators = AXP20X_REG_ID_MAX;
+		break;
+	case AXP221_ID:
+		regulators = axp22x_regulators;
+		nregulators = AXP22X_REG_ID_MAX;
+		break;
+	default:
+		dev_err(&pdev->dev, "Unsupported AXP variant: %ld\n",
+			axp20x->variant);
+		return -EINVAL;
+	}
+
 	/* This only sets the dcdc freq. Ignore any errors */
 	axp20x_regulator_parse_dt(pdev);
 
-	for (i = 0; i < AXP20X_REG_ID_MAX; i++) {
-		rdev = devm_regulator_register(&pdev->dev, &axp20x_regulators[i],
+	for (i = 0; i < nregulators; i++) {
+		rdev = devm_regulator_register(&pdev->dev, &regulators[i],
 					       &config);
 		if (IS_ERR(rdev)) {
 			dev_err(&pdev->dev, "Failed to register %s\n",
-				axp20x_regulators[i].name);
+				regulators[i].name);
 
 			return PTR_ERR(rdev);
 		}
@@ -245,7 +386,7 @@ static int axp20x_regulator_probe(struct platform_device *pdev)
 		if (!ret) {
 			if (axp20x_set_dcdc_workmode(rdev, i, workmode))
 				dev_err(&pdev->dev, "Failed to set workmode on %s\n",
-					axp20x_regulators[i].name);
+					rdev->desc->name);
 		}
 	}