diff options
| author | Aradhya Bhatia <a-bhatia1@ti.com> | 2023-06-06 11:21:39 +0300 |
|---|---|---|
| committer | Javier Martinez Canillas <javierm@redhat.com> | 2023-07-10 15:21:17 +0300 |
| commit | 7978ec7d0d53a8558a5f92241175dea9f9558822 (patch) | |
| tree | 13dc544603822c5ee330c40b9372013bfe1e30a9 /drivers | |
| parent | 1934bf53f2162ba1da8ee963290da190318fd73b (diff) | |
| download | linux-7978ec7d0d53a8558a5f92241175dea9f9558822.tar.xz | |
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
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/bridge/sii902x.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/drm/bridge/sii902x.c b/drivers/gpu/drm/bridge/sii902x.c index aac239729a1d..1c8cbc87d74c 100644 --- a/drivers/gpu/drm/bridge/sii902x.c +++ b/drivers/gpu/drm/bridge/sii902x.c @@ -473,6 +473,27 @@ static struct edid *sii902x_bridge_get_edid(struct drm_bridge *bridge, return sii902x_get_edid(sii902x, connector); } +static u32 *sii902x_bridge_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(1, sizeof(*input_fmts), GFP_KERNEL); + if (!input_fmts) + return NULL; + + input_fmts[0] = MEDIA_BUS_FMT_RGB888_1X24; + *num_input_fmts = 1; + + return input_fmts; +} + static const struct drm_bridge_funcs sii902x_bridge_funcs = { .attach = sii902x_bridge_attach, .mode_set = sii902x_bridge_mode_set, @@ -480,6 +501,10 @@ static const struct drm_bridge_funcs sii902x_bridge_funcs = { .enable = sii902x_bridge_enable, .detect = sii902x_bridge_detect, .get_edid = sii902x_bridge_get_edid, + .atomic_reset = drm_atomic_helper_bridge_reset, + .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state, + .atomic_get_input_bus_fmts = sii902x_bridge_atomic_get_input_bus_fmts, }; static int sii902x_mute(struct sii902x *sii902x, bool mute) |