On Thu, 31 Mar 2022 at 17:39, Marek Vasut marex@denx.de wrote:
Implement .atomic_get_input_bus_fmts callback, which sets up the input (scanout-engine-end) formats, so that those formats can then be used in pipeline format negotiation between this bridge and the scanout engine.
Signed-off-by: Marek Vasut marex@denx.de Cc: Dave Airlie airlied@redhat.com Cc: John Stultz john.stultz@linaro.org Cc: Maxime Ripard maxime@cerno.tech Cc: Sam Ravnborg sam@ravnborg.org Cc: Thomas Zimmermann tzimmermann@suse.de
drivers/gpu/drm/bridge/lontium-lt9611.c | 27 +++++++++++++++++++++++++ 1 file changed, 27 insertions(+)
diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c index 9b3ac3794a2c..7ef8fe5abc12 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611.c @@ -922,6 +922,32 @@ static void lt9611_bridge_hpd_enable(struct drm_bridge *bridge) lt9611_enable_hpd_interrupts(lt9611); }
+#define MAX_INPUT_SEL_FORMATS 1
+static u32 * +lt9611_atomic_get_input_bus_fmts(struct drm_bridge *bridge,
struct drm_bridge_state *bridge_state,struct drm_crtc_state *crtc_state,struct drm_connector_state *conn_state,u32 output_fmt,unsigned int *num_input_fmts)+{
u32 *input_fmts;*num_input_fmts = 0;input_fmts = kcalloc(MAX_INPUT_SEL_FORMATS, sizeof(*input_fmts),GFP_KERNEL);if (!input_fmts)return NULL;/* This is the DSI-end bus format */input_fmts[0] = MEDIA_BUS_FMT_RGB888_1X24;*num_input_fmts = 1;return input_fmts;+}
static const struct drm_bridge_funcs lt9611_bridge_funcs = { .attach = lt9611_bridge_attach, .mode_valid = lt9611_bridge_mode_valid, @@ -936,6 +962,7 @@ static const struct drm_bridge_funcs lt9611_bridge_funcs = { .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state, .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state, .atomic_reset = drm_atomic_helper_bridge_reset,
.atomic_get_input_bus_fmts = lt9611_atomic_get_input_bus_fmts,};
static int lt9611_parse_dt(struct device *dev,
2.35.1
Reviewed-by: Robert Foss robert.foss@linaro.org