[PATCH 4/6] regulator: rk8xx: Migrate to regulator core's simplified DT parsing code
Wadim Egorov
w.egorov at phytec.de
Fri Apr 15 02:16:28 PDT 2016
A common simplified DT parsing code for regulators was introduced in
commit a0c7b164ad11 ("regulator: of: Provide simplified DT parsing
method")
While at it also added RK8XX_DESC and RK8XX_DESC_SWITCH macros for the
regulator_desc struct initialization. This just makes the driver more compact.
Remove also linear ranges definitions with only one range.
Signed-off-by: Wadim Egorov <w.egorov at phytec.de>
---
Changes since RFC:
* dropped of_regulator_match
---
drivers/regulator/rk8xx-regulator.c | 308 +++++++++++++-----------------------
1 file changed, 114 insertions(+), 194 deletions(-)
diff --git a/drivers/regulator/rk8xx-regulator.c b/drivers/regulator/rk8xx-regulator.c
index fc75957..4a29726 100644
--- a/drivers/regulator/rk8xx-regulator.c
+++ b/drivers/regulator/rk8xx-regulator.c
@@ -55,6 +55,42 @@
/* max steps for increase voltage of Buck1/2, equal 100mv*/
#define MAX_STEPS_ONE_TIME 8
+#define RK8XX_DESC(_id, _match, _supply, _min, _max, _step, _vreg, \
+ _vmask, _ereg, _emask, _etime) \
+ [_id] = { \
+ .name = (_match), \
+ .supply_name = (_supply), \
+ .of_match = of_match_ptr(_match), \
+ .regulators_node = of_match_ptr("regulators"), \
+ .type = REGULATOR_VOLTAGE, \
+ .id = (_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), \
+ .enable_time = (_etime), \
+ .ops = &rk808_reg_ops, \
+ }
+
+#define RK8XX_DESC_SWITCH(_id, _match, _supply, _ereg, _emask) \
+ [_id] = { \
+ .name = (_match), \
+ .supply_name = (_supply), \
+ .of_match = of_match_ptr(_match), \
+ .regulators_node = of_match_ptr("regulators"), \
+ .type = REGULATOR_VOLTAGE, \
+ .id = (_id), \
+ .enable_reg = (_ereg), \
+ .enable_mask = (_emask), \
+ .owner = THIS_MODULE, \
+ .ops = &rk808_switch_ops \
+ }
+
+
struct rk808_regulator_data {
struct gpio_desc *dvs_gpio[2];
};
@@ -66,27 +102,11 @@ static const int rk808_buck_config_regs[] = {
RK808_BUCK4_CONFIG_REG,
};
-static const struct regulator_linear_range rk808_buck_voltage_ranges[] = {
- REGULATOR_LINEAR_RANGE(712500, 0, 63, 12500),
-};
-
-static const struct regulator_linear_range rk808_buck4_voltage_ranges[] = {
- REGULATOR_LINEAR_RANGE(1800000, 0, 15, 100000),
-};
-
-static const struct regulator_linear_range rk808_ldo_voltage_ranges[] = {
- REGULATOR_LINEAR_RANGE(1800000, 0, 16, 100000),
-};
-
static const struct regulator_linear_range rk808_ldo3_voltage_ranges[] = {
REGULATOR_LINEAR_RANGE(800000, 0, 13, 100000),
REGULATOR_LINEAR_RANGE(2500000, 15, 15, 0),
};
-static const struct regulator_linear_range rk808_ldo6_voltage_ranges[] = {
- REGULATOR_LINEAR_RANGE(800000, 0, 17, 100000),
-};
-
static int rk808_buck1_2_get_voltage_sel_regmap(struct regulator_dev *rdev)
{
struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev);
@@ -239,7 +259,7 @@ static int rk808_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
RK808_RAMP_RATE_MASK, ramp_value);
}
-static int rk808_set_suspend_voltage(struct regulator_dev *rdev, int uv)
+static int rk808_set_suspend_voltage_range(struct regulator_dev *rdev, int uv)
{
unsigned int reg;
int sel = regulator_map_voltage_linear_range(rdev, uv, uv);
@@ -254,6 +274,21 @@ static int rk808_set_suspend_voltage(struct regulator_dev *rdev, int uv)
sel);
}
+static int rk808_set_suspend_voltage(struct regulator_dev *rdev, int uv)
+{
+ unsigned int reg;
+ int sel = regulator_map_voltage_linear(rdev, uv, uv);
+
+ if (sel < 0)
+ return -EINVAL;
+
+ reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET;
+
+ return regmap_update_bits(rdev->regmap, reg,
+ rdev->desc->vsel_mask,
+ sel);
+}
+
static int rk808_set_suspend_enable(struct regulator_dev *rdev)
{
unsigned int reg;
@@ -291,7 +326,7 @@ static struct regulator_ops rk808_buck1_2_ops = {
.set_suspend_disable = rk808_set_suspend_disable,
};
-static struct regulator_ops rk808_reg_ops = {
+static struct regulator_ops rk808_reg_ops_ranges = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
@@ -299,6 +334,19 @@ static struct regulator_ops rk808_reg_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
+ .set_suspend_voltage = rk808_set_suspend_voltage_range,
+ .set_suspend_enable = rk808_set_suspend_enable,
+ .set_suspend_disable = rk808_set_suspend_disable,
+};
+
+static struct regulator_ops rk808_reg_ops = {
+ .list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
.set_suspend_voltage = rk808_set_suspend_voltage,
.set_suspend_enable = rk808_set_suspend_enable,
.set_suspend_disable = rk808_set_suspend_disable,
@@ -316,12 +364,14 @@ static const struct regulator_desc rk808_reg[] = {
{
.name = "DCDC_REG1",
.supply_name = "vcc1",
+ .of_match = of_match_ptr("DCDC_REG1"),
+ .regulators_node = of_match_ptr("regulators"),
.id = RK808_ID_DCDC1,
.ops = &rk808_buck1_2_ops,
.type = REGULATOR_VOLTAGE,
+ .min_uV = 712500,
+ .uV_step = 12500,
.n_voltages = 64,
- .linear_ranges = rk808_buck_voltage_ranges,
- .n_linear_ranges = ARRAY_SIZE(rk808_buck_voltage_ranges),
.vsel_reg = RK808_BUCK1_ON_VSEL_REG,
.vsel_mask = RK808_BUCK_VSEL_MASK,
.enable_reg = RK808_DCDC_EN_REG,
@@ -330,12 +380,14 @@ static const struct regulator_desc rk808_reg[] = {
}, {
.name = "DCDC_REG2",
.supply_name = "vcc2",
+ .of_match = of_match_ptr("DCDC_REG2"),
+ .regulators_node = of_match_ptr("regulators"),
.id = RK808_ID_DCDC2,
.ops = &rk808_buck1_2_ops,
.type = REGULATOR_VOLTAGE,
+ .min_uV = 712500,
+ .uV_step = 12500,
.n_voltages = 64,
- .linear_ranges = rk808_buck_voltage_ranges,
- .n_linear_ranges = ARRAY_SIZE(rk808_buck_voltage_ranges),
.vsel_reg = RK808_BUCK2_ON_VSEL_REG,
.vsel_mask = RK808_BUCK_VSEL_MASK,
.enable_reg = RK808_DCDC_EN_REG,
@@ -344,6 +396,8 @@ static const struct regulator_desc rk808_reg[] = {
}, {
.name = "DCDC_REG3",
.supply_name = "vcc3",
+ .of_match = of_match_ptr("DCDC_REG3"),
+ .regulators_node = of_match_ptr("regulators"),
.id = RK808_ID_DCDC3,
.ops = &rk808_switch_ops,
.type = REGULATOR_VOLTAGE,
@@ -351,55 +405,23 @@ static const struct regulator_desc rk808_reg[] = {
.enable_reg = RK808_DCDC_EN_REG,
.enable_mask = BIT(2),
.owner = THIS_MODULE,
- }, {
- .name = "DCDC_REG4",
- .supply_name = "vcc4",
- .id = RK808_ID_DCDC4,
- .ops = &rk808_reg_ops,
- .type = REGULATOR_VOLTAGE,
- .n_voltages = 16,
- .linear_ranges = rk808_buck4_voltage_ranges,
- .n_linear_ranges = ARRAY_SIZE(rk808_buck4_voltage_ranges),
- .vsel_reg = RK808_BUCK4_ON_VSEL_REG,
- .vsel_mask = RK808_BUCK4_VSEL_MASK,
- .enable_reg = RK808_DCDC_EN_REG,
- .enable_mask = BIT(3),
- .owner = THIS_MODULE,
- }, {
- .name = "LDO_REG1",
- .supply_name = "vcc6",
- .id = RK808_ID_LDO1,
- .ops = &rk808_reg_ops,
- .type = REGULATOR_VOLTAGE,
- .n_voltages = 17,
- .linear_ranges = rk808_ldo_voltage_ranges,
- .n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
- .vsel_reg = RK808_LDO1_ON_VSEL_REG,
- .vsel_mask = RK808_LDO_VSEL_MASK,
- .enable_reg = RK808_LDO_EN_REG,
- .enable_mask = BIT(0),
- .enable_time = 400,
- .owner = THIS_MODULE,
- }, {
- .name = "LDO_REG2",
- .supply_name = "vcc6",
- .id = RK808_ID_LDO2,
- .ops = &rk808_reg_ops,
- .type = REGULATOR_VOLTAGE,
- .n_voltages = 17,
- .linear_ranges = rk808_ldo_voltage_ranges,
- .n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
- .vsel_reg = RK808_LDO2_ON_VSEL_REG,
- .vsel_mask = RK808_LDO_VSEL_MASK,
- .enable_reg = RK808_LDO_EN_REG,
- .enable_mask = BIT(1),
- .enable_time = 400,
- .owner = THIS_MODULE,
- }, {
+ },
+ RK8XX_DESC(RK808_ID_DCDC4, "DCDC_REG4", "vcc4", 1800, 3300, 100,
+ RK808_BUCK4_ON_VSEL_REG, RK808_BUCK4_VSEL_MASK,
+ RK808_DCDC_EN_REG, BIT(3), 0),
+ RK8XX_DESC(RK808_ID_LDO1, "LDO_REG1", "vcc6", 1800, 3400, 100,
+ RK808_LDO1_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
+ BIT(0), 400),
+ RK8XX_DESC(RK808_ID_LDO2, "LDO_REG2", "vcc6", 1800, 3400, 100,
+ RK808_LDO2_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
+ BIT(1), 400),
+ {
.name = "LDO_REG3",
.supply_name = "vcc7",
+ .of_match = of_match_ptr("LDO_REG3"),
+ .regulators_node = of_match_ptr("regulators"),
.id = RK808_ID_LDO3,
- .ops = &rk808_reg_ops,
+ .ops = &rk808_reg_ops_ranges,
.type = REGULATOR_VOLTAGE,
.n_voltages = 16,
.linear_ranges = rk808_ldo3_voltage_ranges,
@@ -410,117 +432,26 @@ static const struct regulator_desc rk808_reg[] = {
.enable_mask = BIT(2),
.enable_time = 400,
.owner = THIS_MODULE,
- }, {
- .name = "LDO_REG4",
- .supply_name = "vcc9",
- .id = RK808_ID_LDO4,
- .ops = &rk808_reg_ops,
- .type = REGULATOR_VOLTAGE,
- .n_voltages = 17,
- .linear_ranges = rk808_ldo_voltage_ranges,
- .n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
- .vsel_reg = RK808_LDO4_ON_VSEL_REG,
- .vsel_mask = RK808_LDO_VSEL_MASK,
- .enable_reg = RK808_LDO_EN_REG,
- .enable_mask = BIT(3),
- .enable_time = 400,
- .owner = THIS_MODULE,
- }, {
- .name = "LDO_REG5",
- .supply_name = "vcc9",
- .id = RK808_ID_LDO5,
- .ops = &rk808_reg_ops,
- .type = REGULATOR_VOLTAGE,
- .n_voltages = 17,
- .linear_ranges = rk808_ldo_voltage_ranges,
- .n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
- .vsel_reg = RK808_LDO5_ON_VSEL_REG,
- .vsel_mask = RK808_LDO_VSEL_MASK,
- .enable_reg = RK808_LDO_EN_REG,
- .enable_mask = BIT(4),
- .enable_time = 400,
- .owner = THIS_MODULE,
- }, {
- .name = "LDO_REG6",
- .supply_name = "vcc10",
- .id = RK808_ID_LDO6,
- .ops = &rk808_reg_ops,
- .type = REGULATOR_VOLTAGE,
- .n_voltages = 18,
- .linear_ranges = rk808_ldo6_voltage_ranges,
- .n_linear_ranges = ARRAY_SIZE(rk808_ldo6_voltage_ranges),
- .vsel_reg = RK808_LDO6_ON_VSEL_REG,
- .vsel_mask = RK808_LDO_VSEL_MASK,
- .enable_reg = RK808_LDO_EN_REG,
- .enable_mask = BIT(5),
- .enable_time = 400,
- .owner = THIS_MODULE,
- }, {
- .name = "LDO_REG7",
- .supply_name = "vcc7",
- .id = RK808_ID_LDO7,
- .ops = &rk808_reg_ops,
- .type = REGULATOR_VOLTAGE,
- .n_voltages = 18,
- .linear_ranges = rk808_ldo6_voltage_ranges,
- .n_linear_ranges = ARRAY_SIZE(rk808_ldo6_voltage_ranges),
- .vsel_reg = RK808_LDO7_ON_VSEL_REG,
- .vsel_mask = RK808_LDO_VSEL_MASK,
- .enable_reg = RK808_LDO_EN_REG,
- .enable_mask = BIT(6),
- .enable_time = 400,
- .owner = THIS_MODULE,
- }, {
- .name = "LDO_REG8",
- .supply_name = "vcc11",
- .id = RK808_ID_LDO8,
- .ops = &rk808_reg_ops,
- .type = REGULATOR_VOLTAGE,
- .n_voltages = 17,
- .linear_ranges = rk808_ldo_voltage_ranges,
- .n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
- .vsel_reg = RK808_LDO8_ON_VSEL_REG,
- .vsel_mask = RK808_LDO_VSEL_MASK,
- .enable_reg = RK808_LDO_EN_REG,
- .enable_mask = BIT(7),
- .enable_time = 400,
- .owner = THIS_MODULE,
- }, {
- .name = "SWITCH_REG1",
- .supply_name = "vcc8",
- .id = RK808_ID_SWITCH1,
- .ops = &rk808_switch_ops,
- .type = REGULATOR_VOLTAGE,
- .enable_reg = RK808_DCDC_EN_REG,
- .enable_mask = BIT(5),
- .owner = THIS_MODULE,
- }, {
- .name = "SWITCH_REG2",
- .supply_name = "vcc12",
- .id = RK808_ID_SWITCH2,
- .ops = &rk808_switch_ops,
- .type = REGULATOR_VOLTAGE,
- .enable_reg = RK808_DCDC_EN_REG,
- .enable_mask = BIT(6),
- .owner = THIS_MODULE,
},
-};
-
-static struct of_regulator_match rk808_reg_matches[] = {
- [RK808_ID_DCDC1] = { .name = "DCDC_REG1" },
- [RK808_ID_DCDC2] = { .name = "DCDC_REG2" },
- [RK808_ID_DCDC3] = { .name = "DCDC_REG3" },
- [RK808_ID_DCDC4] = { .name = "DCDC_REG4" },
- [RK808_ID_LDO1] = { .name = "LDO_REG1" },
- [RK808_ID_LDO2] = { .name = "LDO_REG2" },
- [RK808_ID_LDO3] = { .name = "LDO_REG3" },
- [RK808_ID_LDO4] = { .name = "LDO_REG4" },
- [RK808_ID_LDO5] = { .name = "LDO_REG5" },
- [RK808_ID_LDO6] = { .name = "LDO_REG6" },
- [RK808_ID_LDO7] = { .name = "LDO_REG7" },
- [RK808_ID_LDO8] = { .name = "LDO_REG8" },
- [RK808_ID_SWITCH1] = { .name = "SWITCH_REG1" },
- [RK808_ID_SWITCH2] = { .name = "SWITCH_REG2" },
+ RK8XX_DESC(RK808_ID_LDO4, "LDO_REG4", "vcc9", 1800, 3400, 100,
+ RK808_LDO4_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
+ BIT(3), 400),
+ RK8XX_DESC(RK808_ID_LDO5, "LDO_REG5", "vcc9", 1800, 3400, 100,
+ RK808_LDO5_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
+ BIT(4), 400),
+ RK8XX_DESC(RK808_ID_LDO6, "LDO_REG6", "vcc10", 800, 2500, 100,
+ RK808_LDO6_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
+ BIT(5), 400),
+ RK8XX_DESC(RK808_ID_LDO7, "LDO_REG7", "vcc7", 800, 2500, 100,
+ RK808_LDO7_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
+ BIT(6), 400),
+ RK8XX_DESC(RK808_ID_LDO8, "LDO_REG8", "vcc11", 1800, 3400, 100,
+ RK808_LDO8_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
+ BIT(7), 400),
+ RK8XX_DESC_SWITCH(RK808_ID_SWITCH1, "SWITCH_REG1", "vcc8",
+ RK808_DCDC_EN_REG, BIT(5)),
+ RK8XX_DESC_SWITCH(RK808_ID_SWITCH2, "SWITCH_REG2", "vcc12",
+ RK808_DCDC_EN_REG, BIT(6)),
};
static int rk8xx_regulator_dt_parse_pdata(struct device *dev,
@@ -529,17 +460,12 @@ static int rk8xx_regulator_dt_parse_pdata(struct device *dev,
struct rk808_regulator_data *pdata)
{
struct device_node *np;
- int tmp, ret, i;
+ int tmp, ret = 0, i;
np = of_get_child_by_name(client_dev->of_node, "regulators");
if (!np)
return -ENXIO;
- ret = of_regulator_match(dev, np, rk808_reg_matches,
- RK808_NUM_REGULATORS);
- if (ret < 0)
- goto dt_parse_end;
-
for (i = 0; i < ARRAY_SIZE(pdata->dvs_gpio); i++) {
pdata->dvs_gpio[i] =
devm_gpiod_get_index_optional(client_dev, "dvs", i,
@@ -586,18 +512,12 @@ static int rk8xx_regulator_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, pdata);
+ config.dev = &client->dev;
+ config.driver_data = pdata;
+ config.regmap = rk8xx->regmap;
+
/* Instantiate the regulators */
for (i = 0; i < RK808_NUM_REGULATORS; i++) {
- if (!rk808_reg_matches[i].init_data ||
- !rk808_reg_matches[i].of_node)
- continue;
-
- config.dev = &client->dev;
- config.driver_data = pdata;
- config.regmap = rk8xx->regmap;
- config.of_node = rk808_reg_matches[i].of_node;
- config.init_data = rk808_reg_matches[i].init_data;
-
rk8xx_rdev = devm_regulator_register(&pdev->dev,
&rk808_reg[i], &config);
if (IS_ERR(rk8xx_rdev)) {
--
1.9.1
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