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drivers: regulator: Import Xiaomi changes

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* From dagu-s-oss

Change-Id: I9e27aed218eb449ee481cece50eb1cea474fd298
This commit is contained in:
Sebastiano Barezzi
2022-11-15 16:58:05 +01:00
committed by Sebastiano Barezzi
parent be43d29ce7
commit a2f88b40c6
2 changed files with 46 additions and 0 deletions
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5
drivers/regulator/Kconfig
View File

@@ -1177,5 +1177,10 @@ config REGULATOR_PM8008
This driver controls PM8008 PMIC chip and the voltage This driver controls PM8008 PMIC chip and the voltage
regulators found in Qualcomm Technologies Inc. PM8008 regulators found in Qualcomm Technologies Inc. PM8008
PMIC. PMIC.
config I2C_RETRY
bool "Stub Regulator"
help
This help control I2C retry functions
endif endif

41
drivers/regulator/qcom_pm8008-regulator.c
View File

@@ -70,6 +70,10 @@
#define MAX_REG_NAME 20 #define MAX_REG_NAME 20
#define PM8008_MAX_LDO 7 #define PM8008_MAX_LDO 7
#ifdef CONFIG_I2C_RETRY
#define MAX_RETRY_TIME 5
#endif
enum pmic_subtype { enum pmic_subtype {
PM8008_SUBTYPE, PM8008_SUBTYPE,
PM8010_SUBTYPE, PM8010_SUBTYPE,
@@ -167,10 +171,21 @@ static int pm8008_read(struct regmap *regmap, u16 reg, u8 *val, int count)
{ {
int rc; int rc;
#ifdef CONFIG_I2C_RETRY
int retry = 0;
do {
rc = regmap_bulk_read(regmap, reg, val, count);
} while (rc < 0 && retry++ < MAX_RETRY_TIME);
if (retry > 0)
pr_err("failed to read 0x%04x retry time %d success\n", reg, retry);
if (rc < 0)
pr_err("failed to read 0x%04x\n", reg);
#else
rc = regmap_bulk_read(regmap, reg, val, count); rc = regmap_bulk_read(regmap, reg, val, count);
if (rc < 0) if (rc < 0)
pr_err("failed to read 0x%04x\n", reg); pr_err("failed to read 0x%04x\n", reg);
#endif
return rc; return rc;
} }
@@ -179,11 +194,23 @@ static int pm8008_write(struct regmap *regmap, u16 reg, const u8 *val,
{ {
int rc; int rc;
#ifdef CONFIG_I2C_RETRY
int retry = 0;
pr_debug("Writing 0x%02x to 0x%04x\n", val, reg);
do {
rc = regmap_bulk_write(regmap, reg, val, count);
} while (rc < 0 && retry++ < MAX_RETRY_TIME);
if (retry > 0)
pr_err("failed to write 0x%04x retry time %d success\n", reg, retry);
if (rc < 0)
pr_err("failed to write 0x%04x\n", reg);
#else
pr_debug("Writing 0x%02x to 0x%04x\n", val, reg); pr_debug("Writing 0x%02x to 0x%04x\n", val, reg);
rc = regmap_bulk_write(regmap, reg, val, count); rc = regmap_bulk_write(regmap, reg, val, count);
if (rc < 0) if (rc < 0)
pr_err("failed to write 0x%04x\n", reg); pr_err("failed to write 0x%04x\n", reg);
#endif
return rc; return rc;
} }
@@ -192,12 +219,26 @@ static int pm8008_masked_write(struct regmap *regmap, u16 reg, u8 mask,
{ {
int rc; int rc;
#ifdef CONFIG_I2C_RETRY
int retry = 0;
pr_debug("Writing 0x%02x to 0x%04x with mask 0x%02x\n", val, reg, mask);
do {
rc = regmap_update_bits(regmap, reg, mask, val);
} while (rc < 0 && retry++ < MAX_RETRY_TIME);
if (retry > 0)
pr_err("failed to write 0x%02x to 0x%04x with mask 0x%02x retry time %d success\n",
val, reg, retry);
if (rc < 0)
pr_err("failed to write 0x%02x to 0x%04x with mask 0x%02x\n",
val, reg, mask);
#else
pr_debug("Writing 0x%02x to 0x%04x with mask 0x%02x\n", val, reg, mask); pr_debug("Writing 0x%02x to 0x%04x with mask 0x%02x\n", val, reg, mask);
rc = regmap_update_bits(regmap, reg, mask, val); rc = regmap_update_bits(regmap, reg, mask, val);
if (rc < 0) if (rc < 0)
pr_err("failed to write 0x%02x to 0x%04x with mask 0x%02x\n", pr_err("failed to write 0x%02x to 0x%04x with mask 0x%02x\n",
val, reg, mask); val, reg, mask);
#endif
return rc; return rc;
} }