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authorLinus Torvalds <torvalds@linux-foundation.org>2019-07-09 18:59:39 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-07-09 18:59:39 +0300
commit8a3367cc8005842efcefc0cb5c29780370818572 (patch)
tree1e672969fab002a1b5594d696b3bc23ca31a0986 /drivers/regulator/lm363x-regulator.c
parent6e2bbb688aa6d05073dd1dd0b836d9becec195c1 (diff)
parent2605085fba22792f3d4a6b856c7c5a05492d1fde (diff)
downloadlinux-8a3367cc8005842efcefc0cb5c29780370818572.tar.xz
Merge tag 'leds-for-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
Pull LED updates from Jacek Anaszewski: - Add a new LED common module for ti-lmu driver family - Modify MFD ti-lmu bindings - add ti,brightness-resolution - add the ramp up/down property - Add regulator support for LM36274 driver to lm363x-regulator.c - New LED class drivers with DT bindings: - leds-spi-byte - leds-lm36274 - leds-lm3697 (move the support from MFD to LED subsystem) - Simplify getting the I2C adapter of a client: - leds-tca6507 - leds-pca955x - Convert LED documentation to ReST * tag 'leds-for-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: dt: leds-lm36274.txt: fix a broken reference to ti-lmu.txt docs: leds: convert to ReST leds: leds-tca6507: simplify getting the adapter of a client leds: leds-pca955x: simplify getting the adapter of a client leds: lm36274: Introduce the TI LM36274 LED driver dt-bindings: leds: Add LED bindings for the LM36274 regulator: lm363x: Add support for LM36274 mfd: ti-lmu: Add LM36274 support to the ti-lmu dt-bindings: mfd: Add lm36274 bindings to ti-lmu leds: max77650: Remove set but not used variable 'parent' leds: avoid flush_work in atomic context leds: lm3697: Introduce the lm3697 driver mfd: ti-lmu: Remove support for LM3697 dt-bindings: ti-lmu: Modify dt bindings for the LM3697 leds: TI LMU: Add common code for TI LMU devices leds: spi-byte: add single byte SPI LED driver dt-bindings: leds: Add binding for spi-byte LED. dt-bindings: mfd: LMU: Add ti,brightness-resolution dt-bindings: mfd: LMU: Add the ramp up/down property
Diffstat (limited to 'drivers/regulator/lm363x-regulator.c')
-rw-r--r--drivers/regulator/lm363x-regulator.c78
1 files changed, 74 insertions, 4 deletions
diff --git a/drivers/regulator/lm363x-regulator.c b/drivers/regulator/lm363x-regulator.c
index 60f15a722760..5647e2f97ff8 100644
--- a/drivers/regulator/lm363x-regulator.c
+++ b/drivers/regulator/lm363x-regulator.c
@@ -34,6 +34,11 @@
#define LM3632_VBOOST_MIN 4500000
#define LM3632_VLDO_MIN 4000000
+/* LM36274 */
+#define LM36274_BOOST_VSEL_MAX 0x3f
+#define LM36274_LDO_VSEL_MAX 0x34
+#define LM36274_VOLTAGE_MIN 4000000
+
/* Common */
#define LM363X_STEP_50mV 50000
#define LM363X_STEP_500mV 500000
@@ -214,6 +219,51 @@ static const struct regulator_desc lm363x_regulator_desc[] = {
.enable_reg = LM3632_REG_BIAS_CONFIG,
.enable_mask = LM3632_EN_VNEG_MASK,
},
+
+ /* LM36274 */
+ {
+ .name = "vboost",
+ .of_match = "vboost",
+ .id = LM36274_BOOST,
+ .ops = &lm363x_boost_voltage_table_ops,
+ .n_voltages = LM36274_BOOST_VSEL_MAX,
+ .min_uV = LM36274_VOLTAGE_MIN,
+ .uV_step = LM363X_STEP_50mV,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .vsel_reg = LM36274_REG_VOUT_BOOST,
+ .vsel_mask = LM36274_VOUT_MASK,
+ },
+ {
+ .name = "ldo_vpos",
+ .of_match = "vpos",
+ .id = LM36274_LDO_POS,
+ .ops = &lm363x_regulator_voltage_table_ops,
+ .n_voltages = LM36274_LDO_VSEL_MAX,
+ .min_uV = LM36274_VOLTAGE_MIN,
+ .uV_step = LM363X_STEP_50mV,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .vsel_reg = LM36274_REG_VOUT_POS,
+ .vsel_mask = LM36274_VOUT_MASK,
+ .enable_reg = LM36274_REG_BIAS_CONFIG_1,
+ .enable_mask = LM36274_EN_VPOS_MASK,
+ },
+ {
+ .name = "ldo_vneg",
+ .of_match = "vneg",
+ .id = LM36274_LDO_NEG,
+ .ops = &lm363x_regulator_voltage_table_ops,
+ .n_voltages = LM36274_LDO_VSEL_MAX,
+ .min_uV = LM36274_VOLTAGE_MIN,
+ .uV_step = LM363X_STEP_50mV,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .vsel_reg = LM36274_REG_VOUT_NEG,
+ .vsel_mask = LM36274_VOUT_MASK,
+ .enable_reg = LM36274_REG_BIAS_CONFIG_1,
+ .enable_mask = LM36274_EN_VNEG_MASK,
+ },
};
static struct gpio_desc *lm363x_regulator_of_get_enable_gpio(struct device *dev, int id)
@@ -226,9 +276,11 @@ static struct gpio_desc *lm363x_regulator_of_get_enable_gpio(struct device *dev,
*/
switch (id) {
case LM3632_LDO_POS:
+ case LM36274_LDO_POS:
return gpiod_get_index_optional(dev, "enable", 0,
GPIOD_OUT_LOW | GPIOD_FLAGS_BIT_NONEXCLUSIVE);
case LM3632_LDO_NEG:
+ case LM36274_LDO_NEG:
return gpiod_get_index_optional(dev, "enable", 1,
GPIOD_OUT_LOW | GPIOD_FLAGS_BIT_NONEXCLUSIVE);
default:
@@ -236,6 +288,27 @@ static struct gpio_desc *lm363x_regulator_of_get_enable_gpio(struct device *dev,
}
}
+static int lm363x_regulator_set_ext_en(struct regmap *regmap, int id)
+{
+ int ext_en_mask = 0;
+
+ switch (id) {
+ case LM3632_LDO_POS:
+ case LM3632_LDO_NEG:
+ ext_en_mask = LM3632_EXT_EN_MASK;
+ break;
+ case LM36274_LDO_POS:
+ case LM36274_LDO_NEG:
+ ext_en_mask = LM36274_EXT_EN_MASK;
+ break;
+ default:
+ return -ENODEV;
+ }
+
+ return regmap_update_bits(regmap, lm363x_regulator_desc[id].enable_reg,
+ ext_en_mask, ext_en_mask);
+}
+
static int lm363x_regulator_probe(struct platform_device *pdev)
{
struct ti_lmu *lmu = dev_get_drvdata(pdev->dev.parent);
@@ -260,10 +333,7 @@ static int lm363x_regulator_probe(struct platform_device *pdev)
if (gpiod) {
cfg.ena_gpiod = gpiod;
-
- ret = regmap_update_bits(regmap, LM3632_REG_BIAS_CONFIG,
- LM3632_EXT_EN_MASK,
- LM3632_EXT_EN_MASK);
+ ret = lm363x_regulator_set_ext_en(regmap, id);
if (ret) {
gpiod_put(gpiod);
dev_err(dev, "External pin err: %d\n", ret);