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Signed-off-by: Hans de Goede Reviewed-by: Andy Shevchenko --- drivers/platform/x86/intel/int3472/clk_and_regulator.c | 7 ++++--- drivers/platform/x86/intel/int3472/common.h | 8 +++++++- drivers/platform/x86/intel/int3472/discrete.c | 4 +++- 3 files changed, 14 insertions(+), 5 deletions(-) diff --git a/drivers/platform/x86/intel/int3472/clk_and_regulator.c b/drivers/platform/x86/intel/int3472/clk_and_regulator.c index a08b953b597a..b4af17e8dcaf 100644 --- a/drivers/platform/x86/intel/int3472/clk_and_regulator.c +++ b/drivers/platform/x86/intel/int3472/clk_and_regulator.c @@ -187,6 +187,7 @@ void skl_int3472_unregister_clock(struct int3472_discrete_device *int3472) int skl_int3472_register_regulator(struct int3472_discrete_device *int3472, struct gpio_desc *gpio, + unsigned int enable_time, const char *supply_name, const char *second_sensor) { @@ -224,9 +225,9 @@ int skl_int3472_register_regulator(struct int3472_discrete_device *int3472, snprintf(regulator->regulator_name, sizeof(regulator->regulator_name), "%s-%s", acpi_dev_name(int3472->adev), supply_name); - int3472->regulator.rdesc = INT3472_REGULATOR( - int3472->regulator.regulator_name, - &int3472_gpio_regulator_ops); + regulator->rdesc = INT3472_REGULATOR(regulator->regulator_name, + &int3472_gpio_regulator_ops, + enable_time, GPIO_REGULATOR_OFF_ON_DELAY); cfg.dev = &int3472->adev->dev; cfg.init_data = &init_data; diff --git a/drivers/platform/x86/intel/int3472/common.h b/drivers/platform/x86/intel/int3472/common.h index b0638c29d847..271c23adb8ab 100644 --- a/drivers/platform/x86/intel/int3472/common.h +++ b/drivers/platform/x86/intel/int3472/common.h @@ -30,17 +30,22 @@ #define GPIO_REGULATOR_NAME_LENGTH (12 + GPIO_SUPPPLY_NAME_LENGTH) /* lower- + upper-case mapping */ #define GPIO_REGULATOR_SUPPLY_MAP_COUNT 2 +/* Ensure the GPIO is driven low/high for at least 2 ms before changing */ +#define GPIO_REGULATOR_ENABLE_TIME (2 * USEC_PER_MSEC) +#define GPIO_REGULATOR_OFF_ON_DELAY (2 * USEC_PER_MSEC) #define INT3472_LED_MAX_NAME_LEN 32 #define CIO2_SENSOR_SSDB_MCLKSPEED_OFFSET 86 -#define INT3472_REGULATOR(_name, _ops) \ +#define INT3472_REGULATOR(_name, _ops, _enable_time, _off_on_delay) \ (const struct regulator_desc) { \ .name = _name, \ .type = REGULATOR_VOLTAGE, \ .ops = _ops, \ .owner = THIS_MODULE, \ + .enable_time = _enable_time, \ + .off_on_delay = _off_on_delay, \ } #define to_int3472_clk(hw) \ @@ -132,6 +137,7 @@ void skl_int3472_unregister_clock(struct int3472_discrete_device *int3472); int skl_int3472_register_regulator(struct int3472_discrete_device *int3472, struct gpio_desc *gpio, + unsigned int enable_time, const char *supply_name, const char *second_sensor); void skl_int3472_unregister_regulator(struct int3472_discrete_device *int3472); diff --git a/drivers/platform/x86/intel/int3472/discrete.c b/drivers/platform/x86/intel/int3472/discrete.c index f6dae82739e5..a2db4fae0e6d 100644 --- a/drivers/platform/x86/intel/int3472/discrete.c +++ b/drivers/platform/x86/intel/int3472/discrete.c @@ -311,7 +311,9 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares, break; case INT3472_GPIO_TYPE_POWER_ENABLE: - ret = skl_int3472_register_regulator(int3472, gpio, con_id, + ret = skl_int3472_register_regulator(int3472, gpio, + GPIO_REGULATOR_ENABLE_TIME, + con_id, int3472->quirks.avdd_second_sensor); if (ret) err_msg = "Failed to map regulator to sensor\n";