mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

drm/bridge: tfp410: Support format negotiation hooks 

With new connector model, tfp410 will not create the connector 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 the one selected by the bridge from DT properties.

Signed-off-by: Nikhil Devshatwar <nikhil.nd@ti.com>
[a-bhatia1: Removed output fmt condition check]
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/20230606082142.23760-2-a-bhatia1@ti.com
This commit is contained in:
Nikhil Devshatwar 2023-06-06 13:51:35 +05:30 committed by Javier Martinez Canillas
parent 70d3c92d85
commit fdf1d8e299
No known key found for this signature in database
GPG Key ID: C751E590D63F3D69
1 changed files with 26 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
drivers/gpu/drm/bridge/ti-tfp410.c
View File

@ -206,12 +206,38 @@ static enum drm_mode_status tfp410_mode_valid(struct drm_bridge *bridge,
return MODE_OK;
}
static u32 *tfp410_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 tfp410 *dvi = drm_bridge_to_tfp410(bridge);
u32 *input_fmts;
*num_input_fmts = 0;
input_fmts = kzalloc(sizeof(*input_fmts), GFP_KERNEL);
if (!input_fmts)
return NULL;
*num_input_fmts = 1;
input_fmts[0] = dvi->bus_format;
return input_fmts;
}
static const struct drm_bridge_funcs tfp410_bridge_funcs = {
.attach = tfp410_attach,
.detach = tfp410_detach,
.enable = tfp410_enable,
.disable = tfp410_disable,
.mode_valid = tfp410_mode_valid,
.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 = tfp410_get_input_bus_fmts,
};
static const struct drm_bridge_timings tfp410_default_timings = {