Get the pixel format and bpc based on the output bus format negotiated instead of hardcoding the values.
Signed-off-by: Yuti Amonkar yamonkar@cadence.com --- .../drm/bridge/cadence/cdns-mhdp8546-core.c | 82 +++++++++++++++---- 1 file changed, 64 insertions(+), 18 deletions(-)
diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c index d9f7eb8249e8..2ad5cad46599 100644 --- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c +++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c @@ -1530,24 +1530,8 @@ static int cdns_mhdp_get_modes(struct drm_connector *connector)
drm_connector_update_edid_property(connector, edid); num_modes = drm_add_edid_modes(connector, edid); - kfree(edid);
- /* - * HACK: Warn about unsupported display formats until we deal - * with them correctly. - */ - if (connector->display_info.color_formats && - !(connector->display_info.color_formats & - mhdp->display_fmt.color_format)) - dev_warn(mhdp->dev, - "%s: No supported color_format found (0x%08x)\n", - __func__, connector->display_info.color_formats); - - if (connector->display_info.bpc && - connector->display_info.bpc < mhdp->display_fmt.bpc) - dev_warn(mhdp->dev, "%s: Display bpc only %d < %d\n", - __func__, connector->display_info.bpc, - mhdp->display_fmt.bpc); + kfree(edid);
return num_modes; } @@ -1706,6 +1690,66 @@ static int cdns_mhdp_attach(struct drm_bridge *bridge, return 0; }
+static void cdns_mhdp_get_display_fmt(struct cdns_mhdp_device *mhdp, + struct drm_bridge_state *state) +{ + u32 bus_fmt, bpc, pxlfmt; + + bus_fmt = state->output_bus_cfg.format; + switch (bus_fmt) { + case MEDIA_BUS_FMT_RGB161616_1X48: + pxlfmt = DRM_COLOR_FORMAT_RGB444; + bpc = 16; + break; + case MEDIA_BUS_FMT_YUV16_1X48: + pxlfmt = DRM_COLOR_FORMAT_YCRCB444; + bpc = 16; + break; + case MEDIA_BUS_FMT_RGB121212_1X36: + pxlfmt = DRM_COLOR_FORMAT_RGB444; + bpc = 12; + break; + case MEDIA_BUS_FMT_UYVY12_1X24: + pxlfmt = DRM_COLOR_FORMAT_YCRCB422; + bpc = 12; + break; + case MEDIA_BUS_FMT_YUV12_1X36: + pxlfmt = DRM_COLOR_FORMAT_YCRCB444; + bpc = 12; + break; + case MEDIA_BUS_FMT_RGB101010_1X30: + pxlfmt = DRM_COLOR_FORMAT_RGB444; + bpc = 10; + break; + case MEDIA_BUS_FMT_UYVY10_1X20: + pxlfmt = DRM_COLOR_FORMAT_YCRCB422; + bpc = 10; + break; + case MEDIA_BUS_FMT_YUV10_1X30: + pxlfmt = DRM_COLOR_FORMAT_YCRCB444; + bpc = 10; + break; + case MEDIA_BUS_FMT_RGB888_1X24: + pxlfmt = DRM_COLOR_FORMAT_RGB444; + bpc = 8; + break; + case MEDIA_BUS_FMT_UYVY8_1X16: + pxlfmt = DRM_COLOR_FORMAT_YCRCB422; + bpc = 8; + break; + case MEDIA_BUS_FMT_YUV8_1X24: + pxlfmt = DRM_COLOR_FORMAT_YCRCB444; + bpc = 8; + break; + default: + pxlfmt = DRM_COLOR_FORMAT_RGB444; + bpc = 8; + } + + mhdp->display_fmt.color_format = pxlfmt; + mhdp->display_fmt.bpc = bpc; +} + static void cdns_mhdp_configure_video(struct cdns_mhdp_device *mhdp, const struct drm_display_mode *mode) { @@ -2186,6 +2230,8 @@ static int cdns_mhdp_atomic_check(struct drm_bridge *bridge, struct cdns_mhdp_device *mhdp = bridge_to_mhdp(bridge); const struct drm_display_mode *mode = &crtc_state->adjusted_mode;
+ cdns_mhdp_get_display_fmt(mhdp, bridge_state); + mutex_lock(&mhdp->link_mutex);
if (!cdns_mhdp_bandwidth_ok(mhdp, mode, mhdp->link.num_lanes, @@ -2499,7 +2545,7 @@ static int cdns_mhdp_probe(struct platform_device *pdev) mhdp->link.rate = mhdp->host.link_rate; mhdp->link.num_lanes = mhdp->host.lanes_cnt;
- /* The only currently supported format */ + /* Initialize color format bpc and y_only to default values*/ mhdp->display_fmt.y_only = false; mhdp->display_fmt.color_format = DRM_COLOR_FORMAT_RGB444; mhdp->display_fmt.bpc = 8;