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drm/bridge: sii902x: Support format negotiation hooks
With new connector model, sii902x will not create the connector, when DRM_BRIDGE_ATTACH_NO_CONNECTOR is set and SoC driver will rely on format negotiation to setup the encoder format. Support format negotiations hooks in the drm_bridge_funcs. Use helper functions for state management. Input format is selected to MEDIA_BUS_FMT_RGB888_1X24 as default, as is the case with older model. Signed-off-by: Aradhya Bhatia <a-bhatia1@ti.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230606082142.23760-6-a-bhatia1@ti.com
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1 changed files with 25 additions and 0 deletions
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@ -473,6 +473,27 @@ static struct edid *sii902x_bridge_get_edid(struct drm_bridge *bridge,
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return sii902x_get_edid(sii902x, connector);
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return sii902x_get_edid(sii902x, connector);
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}
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}
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static u32 *sii902x_bridge_atomic_get_input_bus_fmts(struct drm_bridge *bridge,
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struct drm_bridge_state *bridge_state,
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struct drm_crtc_state *crtc_state,
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struct drm_connector_state *conn_state,
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u32 output_fmt,
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unsigned int *num_input_fmts)
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{
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u32 *input_fmts;
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*num_input_fmts = 0;
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input_fmts = kcalloc(1, sizeof(*input_fmts), GFP_KERNEL);
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if (!input_fmts)
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return NULL;
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input_fmts[0] = MEDIA_BUS_FMT_RGB888_1X24;
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*num_input_fmts = 1;
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return input_fmts;
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}
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static const struct drm_bridge_funcs sii902x_bridge_funcs = {
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static const struct drm_bridge_funcs sii902x_bridge_funcs = {
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.attach = sii902x_bridge_attach,
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.attach = sii902x_bridge_attach,
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.mode_set = sii902x_bridge_mode_set,
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.mode_set = sii902x_bridge_mode_set,
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@ -480,6 +501,10 @@ static const struct drm_bridge_funcs sii902x_bridge_funcs = {
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.enable = sii902x_bridge_enable,
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.enable = sii902x_bridge_enable,
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.detect = sii902x_bridge_detect,
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.detect = sii902x_bridge_detect,
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.get_edid = sii902x_bridge_get_edid,
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.get_edid = sii902x_bridge_get_edid,
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.atomic_reset = drm_atomic_helper_bridge_reset,
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.atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
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.atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
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.atomic_get_input_bus_fmts = sii902x_bridge_atomic_get_input_bus_fmts,
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};
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};
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static int sii902x_mute(struct sii902x *sii902x, bool mute)
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static int sii902x_mute(struct sii902x *sii902x, bool mute)
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