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touch: configure regulators individually

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added support to configure touch regulators individually

Change-Id: Ie0fea5717e6f0ecedcb52f38cd7985922ca0243c
Signed-off-by: Sayantan Majumder <quic_smajumde@quicinc.com>
This commit is contained in:
Srinu Gorle
2021-12-09 16:45:52 +05:30
committed by Gerrit - the friendly Code Review server
parent 8988644ee3
commit 0bc0c0ab12
1 changed files with 77 additions and 24 deletions
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95
pt/pt_core.c
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@@ -56,7 +56,13 @@ static struct drm_panel *active_panel;
MODULE_FIRMWARE(PT_FW_FILE_NAME);
static int pt_lpm_regulator(struct regulator *reg, int load_uA);
#ifdef ENABLE_VDD_REG_ONLY
static int pt_enable_vdd_regulator(struct pt_core_data *cd, bool en);
#endif
#ifdef ENABLE_I2C_REG_ONLY
static int pt_enable_i2c_regulator(struct pt_core_data *cd, bool en);
#endif
static const char *pt_driver_core_name = PT_CORE_NAME;
static const char *pt_driver_core_version = PT_DRIVER_VERSION;
static const char *pt_driver_core_date = PT_DRIVER_DATE;
@@ -10524,13 +10530,60 @@ regulator_put:
return rc;
}
#ifdef ENABLE_I2C_REG_ONLY
static int pt_enable_i2c_regulator(struct pt_core_data *cd, bool en)
{
int rc;
if (!en) {
rc = 0;
goto disable_vcc_i2c_reg_only;
}
if (cd->vcc_i2c) {
if (regulator_count_voltages(cd->vcc_i2c) > 0) {
rc = regulator_set_voltage(cd->vcc_i2c, FT_I2C_VTG_MIN_UV,
FT_I2C_VTG_MAX_UV);
if (rc) {
dev_err(cd->dev,
"Regulator set_vtg failed vcc_i2c rc=%d\n", rc);
goto disable_vcc_i2c_reg_only;
}
}
rc = regulator_enable(cd->vcc_i2c);
if (rc) {
dev_err(cd->dev,
"Regulator vcc_i2c enable failed rc=%d\n", rc);
goto disable_vcc_i2c_reg_only;
}
}
return 0;
disable_vcc_i2c_reg_only:
if (cd->vcc_i2c) {
if (regulator_count_voltages(cd->vcc_i2c) > 0)
regulator_set_voltage(cd->vcc_i2c, FT_I2C_VTG_MIN_UV,
FT_I2C_VTG_MAX_UV);
regulator_disable(cd->vcc_i2c);
}
return rc;
}
#endif
#ifdef ENABLE_VDD_REG_ONLY
static int pt_enable_vdd_regulator(struct pt_core_data *cd, bool en)
{
int rc;
if (!en) {
rc = 0;
goto disable_vdd_reg;
goto disable_vdd_reg_only;
}
if (cd->vdd) {
@@ -10540,7 +10593,7 @@ static int pt_enable_vdd_regulator(struct pt_core_data *cd, bool en)
if (rc) {
dev_err(cd->dev,
"Regulator set_vtg failed vdd rc=%d\n", rc);
goto exit;
goto disable_vdd_reg_only;
}
}
@@ -10548,13 +10601,13 @@ static int pt_enable_vdd_regulator(struct pt_core_data *cd, bool en)
if (rc) {
dev_err(cd->dev,
"Regulator vdd enable failed rc=%d\n", rc);
goto exit;
goto disable_vdd_reg_only;
}
}
return 0;
disable_vdd_reg:
disable_vdd_reg_only:
if (cd->vdd) {
if (regulator_count_voltages(cd->vdd) > 0)
regulator_set_voltage(cd->vdd, FT_VTG_MIN_UV,
@@ -10563,9 +10616,9 @@ disable_vdd_reg:
regulator_disable(cd->vdd);
}
exit:
return rc;
}
#endif
static int pt_enable_regulator(struct pt_core_data *cd, bool en)
{
@@ -10718,16 +10771,20 @@ static int pt_core_suspend_(struct device *dev)
return -EAGAIN;
}
#ifdef ENABLE_VDD_REG_ONLY
rc = pt_enable_vdd_regulator(cd, false);
if (rc) {
dev_err(dev, "%s: Failed to disable vdd regulators: rc=%d\n",
__func__, rc);
}
rc = pt_lpm_regulator(cd->vcc_i2c, I2C_ACTIVE_LOAD_MA);
#endif
#ifdef ENABLE_I2C_REG_ONLY
rc = pt_enable_i2c_regulator(cd, false);
if (rc) {
dev_err(dev, "%s: Failed to enter to lpm mode rc=%d\n",
dev_err(dev, "%s: Failed to disable vdd regulators: rc=%d\n",
__func__, rc);
}
#endif
if (!IS_EASY_WAKE_CONFIGURED(cd->easy_wakeup_gesture))
return 0;
@@ -10749,13 +10806,6 @@ static int pt_core_suspend_(struct device *dev)
return rc;
}
static int pt_lpm_regulator(struct regulator *reg, int load_uA)
{
return (regulator_count_voltages(reg) > 0) ?
regulator_set_load(reg, load_uA) : 0;
}
/*******************************************************************************
* FUNCTION: pt_core_suspend
*
@@ -10804,17 +10854,20 @@ static int pt_core_resume_(struct device *dev)
dev_info(dev, "%s: Entering into resume mode:\n",
__func__);
rc = pt_lpm_regulator(cd->vcc_i2c, I2C_ACTIVE_LOAD_MA);
if (rc < 0) {
dev_err(dev, "%s: Failed to exit lpm mode: rc=%d\n",
__func__, rc);
}
#ifdef ENABLE_VDD_REG_ONLY
rc = pt_enable_vdd_regulator(cd, true);
if (rc < 0) {
dev_err(dev, "%s: Failed to enable vdd regulators: rc=%d\n",
__func__, rc);
}
#endif
#ifdef ENABLE_I2C_REG_ONLY
rc = pt_enable_i2c_regulator(cd, true);
if (rc < 0) {
dev_err(dev, "%s: Failed to enable vdd regulators: rc=%d\n",
__func__, rc);
}
#endif
dev_info(dev, "%s: Voltage regulator enabled: rc=%d\n",
__func__, rc);