From: Jorge Ramirez <[email protected]>
The PMS405 has 5 HFSMPS and 13 LDO regulators,
This commit adds support for one of the 5 HFSMPS regulators (s3) to
the spmi regulator driver.
The PMIC HFSMPS 430 regulators have 8 mV step size and a voltage
control scheme consisting of two 8-bit registers defining a 16-bit
voltage set point in units of millivolts
S3 controls the cpu voltages (s3 is a buck regulator of type HFS430);
it is therefore required so we can enable voltage scaling for safely
running cpufreq.
Signed-off-by: Jorge Ramirez-Ortiz <[email protected]>
Signed-off-by: Jeffrey Hugo <[email protected]>
---
drivers/regulator/qcom_spmi-regulator.c | 43 +++++++++++++++++++++++--
1 file changed, 40 insertions(+), 3 deletions(-)
diff --git a/drivers/regulator/qcom_spmi-regulator.c b/drivers/regulator/qcom_spmi-regulator.c
index c8791b036c53..debe4dc74d27 100644
--- a/drivers/regulator/qcom_spmi-regulator.c
+++ b/drivers/regulator/qcom_spmi-regulator.c
@@ -105,6 +105,7 @@ enum spmi_regulator_logical_type {
SPMI_REGULATOR_LOGICAL_TYPE_ULT_HO_SMPS,
SPMI_REGULATOR_LOGICAL_TYPE_ULT_LDO,
SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS426,
+ SPMI_REGULATOR_LOGICAL_TYPE_HFS430,
};
enum spmi_regulator_type {
@@ -157,6 +158,7 @@ enum spmi_regulator_subtype {
SPMI_REGULATOR_SUBTYPE_ULT_HF_CTL2 = 0x0e,
SPMI_REGULATOR_SUBTYPE_ULT_HF_CTL3 = 0x0f,
SPMI_REGULATOR_SUBTYPE_ULT_HF_CTL4 = 0x10,
+ SPMI_REGULATOR_SUBTYPE_HFS430 = 0x0a,
};
enum spmi_common_regulator_registers {
@@ -302,6 +304,8 @@ enum spmi_common_control_register_index {
/* Clock rate in kHz of the FTSMPS426 regulator reference clock. */
#define SPMI_FTSMPS426_CLOCK_RATE 4800
+#define SPMI_HFS430_CLOCK_RATE 1600
+
/* Minimum voltage stepper delay for each step. */
#define SPMI_FTSMPS426_STEP_DELAY 2
@@ -515,6 +519,10 @@ static struct spmi_voltage_range ult_pldo_ranges[] = {
SPMI_VOLTAGE_RANGE(0, 1750000, 1750000, 3337500, 3337500, 12500),
};
+static struct spmi_voltage_range hfs430_ranges[] = {
+ SPMI_VOLTAGE_RANGE(0, 320000, 320000, 2040000, 2040000, 8000),
+};
+
static DEFINE_SPMI_SET_POINTS(pldo);
static DEFINE_SPMI_SET_POINTS(nldo1);
static DEFINE_SPMI_SET_POINTS(nldo2);
@@ -530,6 +538,7 @@ static DEFINE_SPMI_SET_POINTS(ult_lo_smps);
static DEFINE_SPMI_SET_POINTS(ult_ho_smps);
static DEFINE_SPMI_SET_POINTS(ult_nldo);
static DEFINE_SPMI_SET_POINTS(ult_pldo);
+static DEFINE_SPMI_SET_POINTS(hfs430);
static inline int spmi_vreg_read(struct spmi_regulator *vreg, u16 addr, u8 *buf,
int len)
@@ -1399,12 +1408,26 @@ static struct regulator_ops spmi_ftsmps426_ops = {
.set_pull_down = spmi_regulator_common_set_pull_down,
};
+static struct regulator_ops spmi_hfs430_ops = {
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .set_voltage_sel = spmi_regulator_ftsmps426_set_voltage,
+ .set_voltage_time_sel = spmi_regulator_set_voltage_time_sel,
+ .get_voltage = spmi_regulator_ftsmps426_get_voltage,
+ .map_voltage = spmi_regulator_single_map_voltage,
+ .list_voltage = spmi_regulator_common_list_voltage,
+ .set_mode = spmi_regulator_ftsmps426_set_mode,
+ .get_mode = spmi_regulator_ftsmps426_get_mode,
+};
+
/* Maximum possible digital major revision value */
#define INF 0xFF
static const struct spmi_regulator_mapping supported_regulators[] = {
/* type subtype dig_min dig_max ltype ops setpoints hpm_min */
SPMI_VREG(BUCK, GP_CTL, 0, INF, SMPS, smps, smps, 100000),
+ SPMI_VREG(BUCK, HFS430, 0, INF, HFS430, hfs430, hfs430, 10000),
SPMI_VREG(LDO, N300, 0, INF, LDO, ldo, nldo1, 10000),
SPMI_VREG(LDO, N600, 0, 0, LDO, ldo, nldo2, 10000),
SPMI_VREG(LDO, N1200, 0, 0, LDO, ldo, nldo2, 10000),
@@ -1572,7 +1595,8 @@ static int spmi_regulator_init_slew_rate(struct spmi_regulator *vreg)
return ret;
}
-static int spmi_regulator_init_slew_rate_ftsmps426(struct spmi_regulator *vreg)
+static int spmi_regulator_init_slew_rate_ftsmps426(struct spmi_regulator *vreg,
+ int clock_rate)
{
int ret;
u8 reg = 0;
@@ -1589,7 +1613,7 @@ static int spmi_regulator_init_slew_rate_ftsmps426(struct spmi_regulator *vreg)
delay >>= SPMI_FTSMPS426_STEP_CTRL_DELAY_SHIFT;
/* slew_rate has units of uV/us */
- slew_rate = SPMI_FTSMPS426_CLOCK_RATE * range->step_uV;
+ slew_rate = clock_rate * range->step_uV;
slew_rate /= 1000 * (SPMI_FTSMPS426_STEP_DELAY << delay);
slew_rate *= SPMI_FTSMPS426_STEP_MARGIN_NUM;
slew_rate /= SPMI_FTSMPS426_STEP_MARGIN_DEN;
@@ -1741,7 +1765,14 @@ static int spmi_regulator_of_parse(struct device_node *node,
return ret;
break;
case SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS426:
- ret = spmi_regulator_init_slew_rate_ftsmps426(vreg);
+ ret = spmi_regulator_init_slew_rate_ftsmps426(vreg,
+ SPMI_FTSMPS426_CLOCK_RATE);
+ if (ret)
+ return ret;
+ break;
+ case SPMI_REGULATOR_LOGICAL_TYPE_HFS430:
+ ret = spmi_regulator_init_slew_rate_ftsmps426(vreg,
+ SPMI_HFS430_CLOCK_RATE);
if (ret)
return ret;
break;
@@ -1909,6 +1940,11 @@ static const struct spmi_regulator_data pm8005_regulators[] = {
{ }
};
+static const struct spmi_regulator_data pms405_regulators[] = {
+ { "s3", 0x1a00, "vdd_s3"},
+ { }
+};
+
static const struct of_device_id qcom_spmi_regulator_match[] = {
{ .compatible = "qcom,pm8005-regulators", .data = &pm8005_regulators },
{ .compatible = "qcom,pm8841-regulators", .data = &pm8841_regulators },
@@ -1916,6 +1952,7 @@ static const struct of_device_id qcom_spmi_regulator_match[] = {
{ .compatible = "qcom,pm8941-regulators", .data = &pm8941_regulators },
{ .compatible = "qcom,pm8994-regulators", .data = &pm8994_regulators },
{ .compatible = "qcom,pmi8994-regulators", .data = &pmi8994_regulators },
+ { .compatible = "qcom,pms405-regulators", .data = &pms405_regulators },
{ }
};
MODULE_DEVICE_TABLE(of, qcom_spmi_regulator_match);
--
2.17.1
On Thu 13 Jun 14:27 PDT 2019, Jeffrey Hugo wrote:
> From: Jorge Ramirez <[email protected]>
>
> The PMS405 has 5 HFSMPS and 13 LDO regulators,
>
> This commit adds support for one of the 5 HFSMPS regulators (s3) to
> the spmi regulator driver.
>
> The PMIC HFSMPS 430 regulators have 8 mV step size and a voltage
> control scheme consisting of two 8-bit registers defining a 16-bit
> voltage set point in units of millivolts
>
> S3 controls the cpu voltages (s3 is a buck regulator of type HFS430);
> it is therefore required so we can enable voltage scaling for safely
> running cpufreq.
>
> Signed-off-by: Jorge Ramirez-Ortiz <[email protected]>
> Signed-off-by: Jeffrey Hugo <[email protected]>
Reviewed-by: Bjorn Andersson <[email protected]>
> ---
> drivers/regulator/qcom_spmi-regulator.c | 43 +++++++++++++++++++++++--
> 1 file changed, 40 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/regulator/qcom_spmi-regulator.c b/drivers/regulator/qcom_spmi-regulator.c
> index c8791b036c53..debe4dc74d27 100644
> --- a/drivers/regulator/qcom_spmi-regulator.c
> +++ b/drivers/regulator/qcom_spmi-regulator.c
> @@ -105,6 +105,7 @@ enum spmi_regulator_logical_type {
> SPMI_REGULATOR_LOGICAL_TYPE_ULT_HO_SMPS,
> SPMI_REGULATOR_LOGICAL_TYPE_ULT_LDO,
> SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS426,
> + SPMI_REGULATOR_LOGICAL_TYPE_HFS430,
> };
>
> enum spmi_regulator_type {
> @@ -157,6 +158,7 @@ enum spmi_regulator_subtype {
> SPMI_REGULATOR_SUBTYPE_ULT_HF_CTL2 = 0x0e,
> SPMI_REGULATOR_SUBTYPE_ULT_HF_CTL3 = 0x0f,
> SPMI_REGULATOR_SUBTYPE_ULT_HF_CTL4 = 0x10,
> + SPMI_REGULATOR_SUBTYPE_HFS430 = 0x0a,
> };
>
> enum spmi_common_regulator_registers {
> @@ -302,6 +304,8 @@ enum spmi_common_control_register_index {
> /* Clock rate in kHz of the FTSMPS426 regulator reference clock. */
> #define SPMI_FTSMPS426_CLOCK_RATE 4800
>
> +#define SPMI_HFS430_CLOCK_RATE 1600
> +
> /* Minimum voltage stepper delay for each step. */
> #define SPMI_FTSMPS426_STEP_DELAY 2
>
> @@ -515,6 +519,10 @@ static struct spmi_voltage_range ult_pldo_ranges[] = {
> SPMI_VOLTAGE_RANGE(0, 1750000, 1750000, 3337500, 3337500, 12500),
> };
>
> +static struct spmi_voltage_range hfs430_ranges[] = {
> + SPMI_VOLTAGE_RANGE(0, 320000, 320000, 2040000, 2040000, 8000),
> +};
> +
> static DEFINE_SPMI_SET_POINTS(pldo);
> static DEFINE_SPMI_SET_POINTS(nldo1);
> static DEFINE_SPMI_SET_POINTS(nldo2);
> @@ -530,6 +538,7 @@ static DEFINE_SPMI_SET_POINTS(ult_lo_smps);
> static DEFINE_SPMI_SET_POINTS(ult_ho_smps);
> static DEFINE_SPMI_SET_POINTS(ult_nldo);
> static DEFINE_SPMI_SET_POINTS(ult_pldo);
> +static DEFINE_SPMI_SET_POINTS(hfs430);
>
> static inline int spmi_vreg_read(struct spmi_regulator *vreg, u16 addr, u8 *buf,
> int len)
> @@ -1399,12 +1408,26 @@ static struct regulator_ops spmi_ftsmps426_ops = {
> .set_pull_down = spmi_regulator_common_set_pull_down,
> };
>
> +static struct regulator_ops spmi_hfs430_ops = {
> + .enable = regulator_enable_regmap,
> + .disable = regulator_disable_regmap,
> + .is_enabled = regulator_is_enabled_regmap,
> + .set_voltage_sel = spmi_regulator_ftsmps426_set_voltage,
> + .set_voltage_time_sel = spmi_regulator_set_voltage_time_sel,
> + .get_voltage = spmi_regulator_ftsmps426_get_voltage,
> + .map_voltage = spmi_regulator_single_map_voltage,
> + .list_voltage = spmi_regulator_common_list_voltage,
> + .set_mode = spmi_regulator_ftsmps426_set_mode,
> + .get_mode = spmi_regulator_ftsmps426_get_mode,
> +};
> +
> /* Maximum possible digital major revision value */
> #define INF 0xFF
>
> static const struct spmi_regulator_mapping supported_regulators[] = {
> /* type subtype dig_min dig_max ltype ops setpoints hpm_min */
> SPMI_VREG(BUCK, GP_CTL, 0, INF, SMPS, smps, smps, 100000),
> + SPMI_VREG(BUCK, HFS430, 0, INF, HFS430, hfs430, hfs430, 10000),
> SPMI_VREG(LDO, N300, 0, INF, LDO, ldo, nldo1, 10000),
> SPMI_VREG(LDO, N600, 0, 0, LDO, ldo, nldo2, 10000),
> SPMI_VREG(LDO, N1200, 0, 0, LDO, ldo, nldo2, 10000),
> @@ -1572,7 +1595,8 @@ static int spmi_regulator_init_slew_rate(struct spmi_regulator *vreg)
> return ret;
> }
>
> -static int spmi_regulator_init_slew_rate_ftsmps426(struct spmi_regulator *vreg)
> +static int spmi_regulator_init_slew_rate_ftsmps426(struct spmi_regulator *vreg,
> + int clock_rate)
> {
> int ret;
> u8 reg = 0;
> @@ -1589,7 +1613,7 @@ static int spmi_regulator_init_slew_rate_ftsmps426(struct spmi_regulator *vreg)
> delay >>= SPMI_FTSMPS426_STEP_CTRL_DELAY_SHIFT;
>
> /* slew_rate has units of uV/us */
> - slew_rate = SPMI_FTSMPS426_CLOCK_RATE * range->step_uV;
> + slew_rate = clock_rate * range->step_uV;
> slew_rate /= 1000 * (SPMI_FTSMPS426_STEP_DELAY << delay);
> slew_rate *= SPMI_FTSMPS426_STEP_MARGIN_NUM;
> slew_rate /= SPMI_FTSMPS426_STEP_MARGIN_DEN;
> @@ -1741,7 +1765,14 @@ static int spmi_regulator_of_parse(struct device_node *node,
> return ret;
> break;
> case SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS426:
> - ret = spmi_regulator_init_slew_rate_ftsmps426(vreg);
> + ret = spmi_regulator_init_slew_rate_ftsmps426(vreg,
> + SPMI_FTSMPS426_CLOCK_RATE);
> + if (ret)
> + return ret;
> + break;
> + case SPMI_REGULATOR_LOGICAL_TYPE_HFS430:
> + ret = spmi_regulator_init_slew_rate_ftsmps426(vreg,
> + SPMI_HFS430_CLOCK_RATE);
> if (ret)
> return ret;
> break;
> @@ -1909,6 +1940,11 @@ static const struct spmi_regulator_data pm8005_regulators[] = {
> { }
> };
>
> +static const struct spmi_regulator_data pms405_regulators[] = {
> + { "s3", 0x1a00, "vdd_s3"},
> + { }
> +};
> +
> static const struct of_device_id qcom_spmi_regulator_match[] = {
> { .compatible = "qcom,pm8005-regulators", .data = &pm8005_regulators },
> { .compatible = "qcom,pm8841-regulators", .data = &pm8841_regulators },
> @@ -1916,6 +1952,7 @@ static const struct of_device_id qcom_spmi_regulator_match[] = {
> { .compatible = "qcom,pm8941-regulators", .data = &pm8941_regulators },
> { .compatible = "qcom,pm8994-regulators", .data = &pm8994_regulators },
> { .compatible = "qcom,pmi8994-regulators", .data = &pmi8994_regulators },
> + { .compatible = "qcom,pms405-regulators", .data = &pms405_regulators },
> { }
> };
> MODULE_DEVICE_TABLE(of, qcom_spmi_regulator_match);
> --
> 2.17.1
>