diff options
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/touchscreen/goodix.c | 55 |
1 files changed, 42 insertions, 13 deletions
diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c index 47f812b804c8..02c75ea385e0 100644 --- a/drivers/input/touchscreen/goodix.c +++ b/drivers/input/touchscreen/goodix.c @@ -63,6 +63,11 @@ #define MAX_CONTACTS_LOC 5 #define TRIGGER_LOC 6 +/* Our special handling for GPIO accesses through ACPI is x86 specific */ +#if defined CONFIG_X86 && defined CONFIG_ACPI +#define ACPI_GPIO_SUPPORT +#endif + struct goodix_ts_data; enum goodix_irq_pin_access_method { @@ -600,12 +605,42 @@ static int goodix_send_cfg(struct goodix_ts_data *ts, const u8 *cfg, int len) return 0; } -static int goodix_irq_direction_output(struct goodix_ts_data *ts, - int value) +#ifdef ACPI_GPIO_SUPPORT +static int goodix_pin_acpi_direction_input(struct goodix_ts_data *ts) { - struct device *dev = &ts->client->dev; + acpi_handle handle = ACPI_HANDLE(&ts->client->dev); acpi_status status; + status = acpi_evaluate_object(handle, "INTI", NULL, NULL); + return ACPI_SUCCESS(status) ? 0 : -EIO; +} + +static int goodix_pin_acpi_output_method(struct goodix_ts_data *ts, int value) +{ + acpi_handle handle = ACPI_HANDLE(&ts->client->dev); + acpi_status status; + + status = acpi_execute_simple_method(handle, "INTO", value); + return ACPI_SUCCESS(status) ? 0 : -EIO; +} +#else +static int goodix_pin_acpi_direction_input(struct goodix_ts_data *ts) +{ + dev_err(&ts->client->dev, + "%s called on device without ACPI support\n", __func__); + return -EINVAL; +} + +static int goodix_pin_acpi_output_method(struct goodix_ts_data *ts, int value) +{ + dev_err(&ts->client->dev, + "%s called on device without ACPI support\n", __func__); + return -EINVAL; +} +#endif + +static int goodix_irq_direction_output(struct goodix_ts_data *ts, int value) +{ switch (ts->irq_pin_access_method) { case IRQ_PIN_ACCESS_NONE: dev_err(&ts->client->dev, @@ -621,9 +656,7 @@ static int goodix_irq_direction_output(struct goodix_ts_data *ts, */ return gpiod_direction_output_raw(ts->gpiod_int, value); case IRQ_PIN_ACCESS_ACPI_METHOD: - status = acpi_execute_simple_method(ACPI_HANDLE(dev), - "INTO", value); - return ACPI_SUCCESS(status) ? 0 : -EIO; + return goodix_pin_acpi_output_method(ts, value); } return -EINVAL; /* Never reached */ @@ -631,9 +664,6 @@ static int goodix_irq_direction_output(struct goodix_ts_data *ts, static int goodix_irq_direction_input(struct goodix_ts_data *ts) { - struct device *dev = &ts->client->dev; - acpi_status status; - switch (ts->irq_pin_access_method) { case IRQ_PIN_ACCESS_NONE: dev_err(&ts->client->dev, @@ -641,12 +671,11 @@ static int goodix_irq_direction_input(struct goodix_ts_data *ts) __func__); return -EINVAL; case IRQ_PIN_ACCESS_GPIO: + return gpiod_direction_input(ts->gpiod_int); case IRQ_PIN_ACCESS_ACPI_GPIO: return gpiod_direction_input(ts->gpiod_int); case IRQ_PIN_ACCESS_ACPI_METHOD: - status = acpi_evaluate_object(ACPI_HANDLE(dev), "INTI", - NULL, NULL); - return ACPI_SUCCESS(status) ? 0 : -EIO; + return goodix_pin_acpi_direction_input(ts); } return -EINVAL; /* Never reached */ @@ -710,7 +739,7 @@ static int goodix_reset(struct goodix_ts_data *ts) return 0; } -#if defined CONFIG_X86 && defined CONFIG_ACPI +#ifdef ACPI_GPIO_SUPPORT #include <asm/cpu_device_id.h> #include <asm/intel-family.h> |