diff options
Diffstat (limited to 'drivers/gpu/drm/bridge/cadence')
| -rw-r--r-- | drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c b/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c index 89a3f3efc522..c333b5c025d9 100644 --- a/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c +++ b/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c @@ -936,6 +936,33 @@ static void cdns_dsi_bridge_atomic_pre_enable(struct drm_bridge *bridge, cdns_dsi_hs_init(dsi); } +static u32 *cdns_dsi_bridge_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) +{ + struct cdns_dsi_input *input = bridge_to_cdns_dsi_input(bridge); + struct cdns_dsi *dsi = input_to_dsi(input); + struct cdns_dsi_output *output = &dsi->output; + u32 *input_fmts; + + *num_input_fmts = 0; + + input_fmts = kzalloc(sizeof(*input_fmts), GFP_KERNEL); + if (!input_fmts) + return NULL; + + input_fmts[0] = drm_mipi_dsi_get_input_bus_fmt(output->dev->format); + if (!input_fmts[0]) + return NULL; + + *num_input_fmts = 1; + + return input_fmts; +} + static const struct drm_bridge_funcs cdns_dsi_bridge_funcs = { .attach = cdns_dsi_bridge_attach, .mode_valid = cdns_dsi_bridge_mode_valid, @@ -946,6 +973,7 @@ static const struct drm_bridge_funcs cdns_dsi_bridge_funcs = { .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 = cdns_dsi_bridge_get_input_bus_fmts, }; static int cdns_dsi_attach(struct mipi_dsi_host *host, |