mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-04-08 21:06:24 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/bridge: cdns-dsi: Add input format negotiation

Browse Source 
Add support for the input format negotiation hook, that uses the helper
drm_mipi_dsi_get_input_bus_fmt() for dsi hosts, to figure out the
required input format.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Aradhya Bhatia <a-bhatia1@ti.com>
Signed-off-by: Aradhya Bhatia <aradhya.bhatia@linux.dev>
Link: https://lore.kernel.org/r/20250329113925.68204-9-aradhya.bhatia@linux.dev
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
This commit is contained in:
Aradhya Bhatia
2025-03-29 17:09:19 +05:30
committed by Dmitry Baryshkov
parent e83967c355
commit bc36ee983f
1 changed files with 28 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c
View File

@@ -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,