diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/gpio/gpio_service.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/gpio/gpio_service.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/gpio/gpio_service.c b/drivers/gpu/drm/amd/display/dc/gpio/gpio_service.c index a7fab44f66b6..5b02db13eb2a 100644 --- a/drivers/gpu/drm/amd/display/dc/gpio/gpio_service.c +++ b/drivers/gpu/drm/amd/display/dc/gpio/gpio_service.c @@ -141,6 +141,62 @@ struct gpio *dal_gpio_service_create_irq( return dal_gpio_create_irq(service, id, en); } +struct gpio *dal_gpio_service_create_generic_mux( + struct gpio_service *service, + uint32_t offset, + uint32_t mask) +{ + enum gpio_id id; + uint32_t en; + struct gpio *generic; + + if (mask == 1) + en = GPIO_GENERIC_A; + else if (mask == 0x00000100L) + en = GPIO_GENERIC_B; + else + return NULL; + + id = GPIO_ID_GENERIC; + + generic = dal_gpio_create( + service, id, en, GPIO_PIN_OUTPUT_STATE_DEFAULT); + + return generic; +} + +void dal_gpio_destroy_generic_mux( + struct gpio **mux) +{ + if (!mux || !*mux) { + ASSERT_CRITICAL(false); + return; + } + + dal_gpio_close(*mux); + dal_gpio_destroy(mux); + kfree(*mux); + + *mux = NULL; +} + +struct gpio_pin_info dal_gpio_get_generic_pin_info( + struct gpio_service *service, + enum gpio_id id, + uint32_t en) +{ + struct gpio_pin_info pin; + + if (service->translate.funcs->id_to_offset) { + service->translate.funcs->id_to_offset(id, en, &pin); + } else { + pin.mask = 0xFFFFFFFF; + pin.offset = 0xFFFFFFFF; + } + + return pin; +} + void dal_gpio_service_destroy( struct gpio_service **ptr) { @@ -165,6 +221,21 @@ void dal_gpio_service_destroy( *ptr = NULL; } +enum gpio_result dal_mux_setup_config( + struct gpio *mux, + struct gpio_generic_mux_config *config) +{ + struct gpio_config_data config_data; + + if (!config) + return GPIO_RESULT_INVALID_DATA; + + config_data.config.generic_mux = *config; + config_data.type = GPIO_CONFIG_TYPE_GENERIC_MUX; + + return dal_gpio_set_config(mux, &config_data); +} + /* * @brief * Private API. @@ -255,6 +326,7 @@ enum gpio_result dal_gpio_service_open( case GPIO_ID_GENERIC: pin = service->factory.funcs->create_generic( service->ctx, id, en); + service->factory.funcs->define_generic_registers(pin, en); break; case GPIO_ID_HPD: pin = service->factory.funcs->create_hpd( |