SYNC_SOURCE_NONE 186 drivers/gpu/drm/amd/display/dc/gpio/gpio_base.c return SYNC_SOURCE_NONE; SYNC_SOURCE_NONE 200 drivers/gpu/drm/amd/display/dc/gpio/gpio_base.c return SYNC_SOURCE_NONE; SYNC_SOURCE_NONE 210 drivers/gpu/drm/amd/display/dc/gpio/gpio_base.c return SYNC_SOURCE_NONE; SYNC_SOURCE_NONE 224 drivers/gpu/drm/amd/display/dc/gpio/gpio_base.c return SYNC_SOURCE_NONE; SYNC_SOURCE_NONE 228 drivers/gpu/drm/amd/display/dc/gpio/gpio_base.c return SYNC_SOURCE_NONE;