[PATCH v5 14/19] regulator: bd718x7, bd71828: Use ramp-delay helper

From: Matti Vaittinen
Date: Mon Mar 29 2021 - 09:00:35 EST

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Use generic regamp ramp-delay helper function instead of implementing own.

Signed-off-by: Matti Vaittinen <matti.vaittinen@xxxxxxxxxxxxxxxxx>
---
Changes since v4:
- new patch
drivers/regulator/bd71828-regulator.c | 51 ++++++++---------------
drivers/regulator/bd718x7-regulator.c | 60 ++++++++++++---------------
2 files changed, 45 insertions(+), 66 deletions(-)

diff --git a/drivers/regulator/bd71828-regulator.c b/drivers/regulator/bd71828-regulator.c
index 6b12e963ed8f..a4f09a5a30ca 100644
--- a/drivers/regulator/bd71828-regulator.c
+++ b/drivers/regulator/bd71828-regulator.c
@@ -90,38 +90,7 @@ static const struct linear_range bd71828_ldo_volts[] = {
REGULATOR_LINEAR_RANGE(3300000, 0x32, 0x3f, 0),
};

-static int bd71828_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
-{
- unsigned int val;
-
- switch (ramp_delay) {
- case 1 ... 2500:
- val = 0;
- break;
- case 2501 ... 5000:
- val = 1;
- break;
- case 5001 ... 10000:
- val = 2;
- break;
- case 10001 ... 20000:
- val = 3;
- break;
- default:
- val = 3;
- dev_err(&rdev->dev,
- "ramp_delay: %d not supported, setting 20mV/uS",
- ramp_delay);
- }
-
- /*
- * On BD71828 the ramp delay level control reg is at offset +2 to
- * enable reg
- */
- return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg + 2,
- BD71828_MASK_RAMP_DELAY,
- val << (ffs(BD71828_MASK_RAMP_DELAY) - 1));
-}
+static const unsigned int bd71828_ramp_delay[] = { 2500, 5000, 10000, 20000 };

static int buck_set_hw_dvs_levels(struct device_node *np,
const struct regulator_desc *desc,
@@ -185,7 +154,7 @@ static const struct regulator_ops bd71828_dvs_buck_ops = {
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
- .set_ramp_delay = bd71828_set_ramp_delay,
+ .set_ramp_delay = regulator_set_ramp_delay_regmap,
};

static const struct regulator_ops bd71828_ldo_ops = {
@@ -219,6 +188,10 @@ static const struct bd71828_regulator_data bd71828_rdata[] = {
.enable_mask = BD71828_MASK_RUN_EN,
.vsel_reg = BD71828_REG_BUCK1_VOLT,
.vsel_mask = BD71828_MASK_BUCK1267_VOLT,
+ .ramp_delay_table = bd71828_ramp_delay,
+ .n_ramp_values = ARRAY_SIZE(bd71828_ramp_delay),
+ .ramp_reg = BD71828_REG_BUCK1_MODE,
+ .ramp_mask = BD71828_MASK_RAMP_DELAY,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
@@ -261,6 +234,10 @@ static const struct bd71828_regulator_data bd71828_rdata[] = {
.enable_mask = BD71828_MASK_RUN_EN,
.vsel_reg = BD71828_REG_BUCK2_VOLT,
.vsel_mask = BD71828_MASK_BUCK1267_VOLT,
+ .ramp_delay_table = bd71828_ramp_delay,
+ .n_ramp_values = ARRAY_SIZE(bd71828_ramp_delay),
+ .ramp_reg = BD71828_REG_BUCK2_MODE,
+ .ramp_mask = BD71828_MASK_RAMP_DELAY,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
@@ -421,6 +398,10 @@ static const struct bd71828_regulator_data bd71828_rdata[] = {
.enable_mask = BD71828_MASK_RUN_EN,
.vsel_reg = BD71828_REG_BUCK6_VOLT,
.vsel_mask = BD71828_MASK_BUCK1267_VOLT,
+ .ramp_delay_table = bd71828_ramp_delay,
+ .n_ramp_values = ARRAY_SIZE(bd71828_ramp_delay),
+ .ramp_reg = BD71828_REG_BUCK6_MODE,
+ .ramp_mask = BD71828_MASK_RAMP_DELAY,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
@@ -458,6 +439,10 @@ static const struct bd71828_regulator_data bd71828_rdata[] = {
.enable_mask = BD71828_MASK_RUN_EN,
.vsel_reg = BD71828_REG_BUCK7_VOLT,
.vsel_mask = BD71828_MASK_BUCK1267_VOLT,
+ .ramp_delay_table = bd71828_ramp_delay,
+ .n_ramp_values = ARRAY_SIZE(bd71828_ramp_delay),
+ .ramp_reg = BD71828_REG_BUCK7_MODE,
+ .ramp_mask = BD71828_MASK_RAMP_DELAY,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
diff --git a/drivers/regulator/bd718x7-regulator.c b/drivers/regulator/bd718x7-regulator.c
index 8ff47ea522d6..e61295b30503 100644
--- a/drivers/regulator/bd718x7-regulator.c
+++ b/drivers/regulator/bd718x7-regulator.c
@@ -86,37 +86,7 @@ static const struct regulator_ops BD718XX_HWOPNAME(name) = { \
* 10: 2.50mV/usec 10mV 4uS
* 11: 1.25mV/usec 10mV 8uS
*/
-static int bd718xx_buck1234_set_ramp_delay(struct regulator_dev *rdev,
- int ramp_delay)
-{
- int id = rdev_get_id(rdev);
- unsigned int ramp_value;
-
- dev_dbg(&rdev->dev, "Buck[%d] Set Ramp = %d\n", id + 1,
- ramp_delay);
- switch (ramp_delay) {
- case 1 ... 1250:
- ramp_value = BUCK_RAMPRATE_1P25MV;
- break;
- case 1251 ... 2500:
- ramp_value = BUCK_RAMPRATE_2P50MV;
- break;
- case 2501 ... 5000:
- ramp_value = BUCK_RAMPRATE_5P00MV;
- break;
- case 5001 ... 10000:
- ramp_value = BUCK_RAMPRATE_10P00MV;
- break;
- default:
- ramp_value = BUCK_RAMPRATE_10P00MV;
- dev_err(&rdev->dev,
- "%s: ramp_delay: %d not supported, setting 10000mV//us\n",
- rdev->desc->name, ramp_delay);
- }
-
- return regmap_update_bits(rdev->regmap, BD718XX_REG_BUCK1_CTRL + id,
- BUCK_RAMPRATE_MASK, ramp_value << 6);
-}
+static const unsigned int bd718xx_ramp_delay[] = { 10000, 5000, 2500, 1250 };

/* These functions are used when regulators are under HW state machine control.
* We assume PMIC is in RUN state because SW running and able to query the
@@ -378,7 +348,7 @@ static const struct regulator_ops bd71837_buck34_ops_hwctrl = {
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
- .set_ramp_delay = bd718xx_buck1234_set_ramp_delay,
+ .set_ramp_delay = regulator_set_ramp_delay_regmap,
};

/*
@@ -387,7 +357,7 @@ static const struct regulator_ops bd71837_buck34_ops_hwctrl = {
BD718XX_OPS(bd718xx_dvs_buck_regulator_ops, regulator_list_voltage_linear_range,
NULL, regulator_set_voltage_sel_regmap,
regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel,
- bd718xx_buck1234_set_ramp_delay);
+ /* bd718xx_buck1234_set_ramp_delay */ regulator_set_ramp_delay_regmap);

/*
* BD71837 BUCK1/2/3/4
@@ -645,6 +615,10 @@ static struct bd718xx_regulator_data bd71847_regulators[] = {
.enable_mask = BD718XX_BUCK_EN,
.enable_time = BD71847_BUCK1_STARTUP_TIME,
.owner = THIS_MODULE,
+ .ramp_delay_table = bd718xx_ramp_delay,
+ .n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay),
+ .ramp_reg = BD718XX_REG_BUCK1_CTRL,
+ .ramp_mask = BUCK_RAMPRATE_MASK,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
@@ -678,6 +652,10 @@ static struct bd718xx_regulator_data bd71847_regulators[] = {
.enable_reg = BD718XX_REG_BUCK2_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.enable_time = BD71847_BUCK2_STARTUP_TIME,
+ .ramp_delay_table = bd718xx_ramp_delay,
+ .n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay),
+ .ramp_reg = BD718XX_REG_BUCK2_CTRL,
+ .ramp_mask = BUCK_RAMPRATE_MASK,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
@@ -985,6 +963,10 @@ static struct bd718xx_regulator_data bd71837_regulators[] = {
.enable_reg = BD718XX_REG_BUCK1_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.enable_time = BD71837_BUCK1_STARTUP_TIME,
+ .ramp_delay_table = bd718xx_ramp_delay,
+ .n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay),
+ .ramp_reg = BD718XX_REG_BUCK1_CTRL,
+ .ramp_mask = BUCK_RAMPRATE_MASK,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
@@ -1019,6 +1001,10 @@ static struct bd718xx_regulator_data bd71837_regulators[] = {
.enable_reg = BD718XX_REG_BUCK2_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.enable_time = BD71837_BUCK2_STARTUP_TIME,
+ .ramp_delay_table = bd718xx_ramp_delay,
+ .n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay),
+ .ramp_reg = BD718XX_REG_BUCK2_CTRL,
+ .ramp_mask = BUCK_RAMPRATE_MASK,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
@@ -1050,6 +1036,10 @@ static struct bd718xx_regulator_data bd71837_regulators[] = {
.enable_reg = BD71837_REG_BUCK3_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.enable_time = BD71837_BUCK3_STARTUP_TIME,
+ .ramp_delay_table = bd718xx_ramp_delay,
+ .n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay),
+ .ramp_reg = BD71837_REG_BUCK3_CTRL,
+ .ramp_mask = BUCK_RAMPRATE_MASK,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
@@ -1079,6 +1069,10 @@ static struct bd718xx_regulator_data bd71837_regulators[] = {
.enable_reg = BD71837_REG_BUCK4_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.enable_time = BD71837_BUCK4_STARTUP_TIME,
+ .ramp_delay_table = bd718xx_ramp_delay,
+ .n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay),
+ .ramp_reg = BD71837_REG_BUCK4_CTRL,
+ .ramp_mask = BUCK_RAMPRATE_MASK,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
--
2.25.4

--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND

~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]

Next message: Matti Vaittinen: "[PATCH v5 15/19] regulator: Support ROHM BD71815 regulators"
Previous message: Matti Vaittinen: "[PATCH v5 13/19] regulator: Add regmap helper for ramp-delay setting"
In reply to: Matti Vaittinen: "[PATCH v5 13/19] regulator: Add regmap helper for ramp-delay setting"
Next in thread: Matti Vaittinen: "[PATCH v5 15/19] regulator: Support ROHM BD71815 regulators"
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