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regulator: cp9314: Adds regulator_get_error_flags support

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Adds a handler to check error flag bits. This should be called
by applications that call regulator_enable and receive -EINVAL
as a return.

Signed-off-by: Ricardo Rivera-Matos <rriveram@opensource.cirrus.com>
This commit is contained in:
Ricardo Rivera-Matos 2024-03-28 17:15:45 +00:00 committed by Alberto Escolar
parent f9ce311855
commit 4928f3b7ff
1 changed files with 52 additions and 0 deletions
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52
drivers/regulator/regulator_cp9314.c
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@ -66,6 +66,16 @@ LOG_MODULE_REGISTER(CP9314, CONFIG_REGULATOR_LOG_LEVEL);
#define CP9314_MODE_2TO1 1
#define CP9314_MODE_3TO1 2
#define CP9314_REG_FLT_FLAG 0x12
#define CP9314_VIN_OVP_FLAG BIT(1)
#define CP9314_VOUT_OVP_FLAG BIT(0)
#define CP9314_REG_COMP_FLAG0 0x2A
#define CP9314_IIN_OCP_FLAG BIT(4)
#define CP9314_REG_COMP_FLAG1 0x2C
#define CP9314_VIN2OUT_OVP_FLAG BIT(0)
#define CP9314_REG_LION_CFG_1 0x31
#define CP9314_LB2_DELTA_CFG_1 GENMASK(7, 5)
@ -232,6 +242,47 @@ static struct cp9314_reg_patch otp_1_patch[3] = {
{CP9314_REG_TSBAT_CTRL, CP9314_LB1_STOP_PHASE_SEL, CP9314_LB1_STOP_PHASE_SEL},
};
static int regulator_cp9314_get_error_flags(const struct device *dev,
regulator_error_flags_t *flags)
{
const struct regulator_cp9314_config *config = dev->config;
uint8_t val[3];
int ret;
*flags = 0U;
ret = i2c_reg_read_byte_dt(&config->i2c, CP9314_REG_FLT_FLAG, &val[0]);
if (ret < 0) {
return ret;
}
if (FIELD_GET(CP9314_VIN_OVP_FLAG, val[0]) || FIELD_GET(CP9314_VOUT_OVP_FLAG, val[0])) {
*flags |= REGULATOR_ERROR_OVER_VOLTAGE;
}
ret = i2c_reg_read_byte_dt(&config->i2c, CP9314_REG_COMP_FLAG0, &val[1]);
if (ret < 0) {
return ret;
}
if (FIELD_GET(CP9314_IIN_OCP_FLAG, val[1])) {
*flags |= REGULATOR_ERROR_OVER_CURRENT;
}
ret = i2c_reg_read_byte_dt(&config->i2c, CP9314_REG_COMP_FLAG1, &val[2]);
if (ret < 0) {
return ret;
}
if (FIELD_GET(CP9314_VIN2OUT_OVP_FLAG, val[2])) {
*flags |= REGULATOR_ERROR_OVER_VOLTAGE;
}
LOG_DBG("FLT_FLAG = 0x%x, COMP_FLAG0 = 0x%x, COMP_FLAG1 = 0x%x", val[0], val[1], val[2]);
return 0;
}
static int regulator_cp9314_disable(const struct device *dev)
{
const struct regulator_cp9314_config *config = dev->config;
@ -550,6 +601,7 @@ static int regulator_cp9314_init(const struct device *dev)
static const struct regulator_driver_api api = {
.enable = regulator_cp9314_enable,
.disable = regulator_cp9314_disable,
.get_error_flags = regulator_cp9314_get_error_flags,
};
#define REGULATOR_CP9314_DEFINE(inst) \