From: Neil Armstrong <narmstrong@baylibre.com>
To: robert.foss@linaro.org
Cc: Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se,
jernej.skrabec@gmail.com, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org,
Neil Armstrong <narmstrong@baylibre.com>
Subject: [PATCH 2/2] drm/bridge: dw-hdmi: filter out YUV output formats when DVI
Date: Wed, 19 Jan 2022 13:36:56 +0100 [thread overview]
Message-ID: <20220119123656.1456355-2-narmstrong@baylibre.com> (raw)
In-Reply-To: <20220119123656.1456355-1-narmstrong@baylibre.com>
When the display is not an HDMI sink, only the RGB output format is
valid. Thus stop returning YUV output formats when sink is not HDMI.
Fixes: 6c3c719936da ("drm/bridge: synopsys: dw-hdmi: add bus format negociation")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---
drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 56021f20d396..03057d335158 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -2538,6 +2538,7 @@ static u32 *dw_hdmi_bridge_atomic_get_output_bus_fmts(struct drm_bridge *bridge,
struct drm_connector *conn = conn_state->connector;
struct drm_display_info *info = &conn->display_info;
struct drm_display_mode *mode = &crtc_state->mode;
+ struct dw_hdmi *hdmi = bridge->driver_private;
u8 max_bpc = conn_state->max_requested_bpc;
bool is_hdmi2_sink = info->hdmi.scdc.supported ||
(info->color_formats & DRM_COLOR_FORMAT_YCRCB420);
@@ -2564,7 +2565,7 @@ static u32 *dw_hdmi_bridge_atomic_get_output_bus_fmts(struct drm_bridge *bridge,
* If the current mode enforces 4:2:0, force the output but format
* to 4:2:0 and do not add the YUV422/444/RGB formats
*/
- if (conn->ycbcr_420_allowed &&
+ if (hdmi->sink_is_hdmi && conn->ycbcr_420_allowed &&
(drm_mode_is_420_only(info, mode) ||
(is_hdmi2_sink && drm_mode_is_420_also(info, mode)))) {
@@ -2595,36 +2596,36 @@ static u32 *dw_hdmi_bridge_atomic_get_output_bus_fmts(struct drm_bridge *bridge,
*/
if (max_bpc >= 16 && info->bpc == 16) {
- if (info->color_formats & DRM_COLOR_FORMAT_YCRCB444)
+ if (hdmi->sink_is_hdmi && info->color_formats & DRM_COLOR_FORMAT_YCRCB444)
output_fmts[i++] = MEDIA_BUS_FMT_YUV16_1X48;
output_fmts[i++] = MEDIA_BUS_FMT_RGB161616_1X48;
}
if (max_bpc >= 12 && info->bpc >= 12) {
- if (info->color_formats & DRM_COLOR_FORMAT_YCRCB422)
+ if (hdmi->sink_is_hdmi && info->color_formats & DRM_COLOR_FORMAT_YCRCB422)
output_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24;
- if (info->color_formats & DRM_COLOR_FORMAT_YCRCB444)
+ if (hdmi->sink_is_hdmi && info->color_formats & DRM_COLOR_FORMAT_YCRCB444)
output_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36;
output_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36;
}
if (max_bpc >= 10 && info->bpc >= 10) {
- if (info->color_formats & DRM_COLOR_FORMAT_YCRCB422)
+ if (hdmi->sink_is_hdmi && info->color_formats & DRM_COLOR_FORMAT_YCRCB422)
output_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20;
- if (info->color_formats & DRM_COLOR_FORMAT_YCRCB444)
+ if (hdmi->sink_is_hdmi && info->color_formats & DRM_COLOR_FORMAT_YCRCB444)
output_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30;
output_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30;
}
- if (info->color_formats & DRM_COLOR_FORMAT_YCRCB422)
+ if (hdmi->sink_is_hdmi && info->color_formats & DRM_COLOR_FORMAT_YCRCB422)
output_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16;
- if (info->color_formats & DRM_COLOR_FORMAT_YCRCB444)
+ if (hdmi->sink_is_hdmi && info->color_formats & DRM_COLOR_FORMAT_YCRCB444)
output_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24;
/* Default 8bit RGB fallback */
--
2.25.1
prev parent reply other threads:[~2022-01-19 12:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-19 12:36 [PATCH 1/2] drm/bridge: dw-hdmi: filter safe formats when first in bridge chain Neil Armstrong
2022-01-19 12:36 ` Neil Armstrong [this message]
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