Sean, On 06/23/2016 10:19 PM, Sean Paul wrote:
On Tue, Jun 14, 2016 at 7:46 AM, Yakir Yang <ykk@xxxxxxxxxxxxxx> wrote:Rockchip VOP couldn't output YUV video format for eDP controller, so when driver detect connector support YUV video format, we need to hack it down to RGB888. Signed-off-by: Yakir Yang <ykk@xxxxxxxxxxxxxx> Acked-by: Mark Yao <mark.yao@xxxxxxxxxxxxxx> --- Changes in v3: - Hook the connector's color_formats in .get_modes directly. (Tomasz, reviewed at Google Gerrit) [https://chromium-review.googlesource.com/#/c/346317/15] - Add the acked flag from Mark. Changes in v2: None drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c index da2e844..95a6f60 100644 --- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c +++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c @@ -102,6 +102,22 @@ static int rockchip_dp_powerdown(struct analogix_dp_plat_data *plat_data) return 0; } +static int rockchip_dp_get_modes(struct analogix_dp_plat_data *plat_data, + struct drm_connector *connector) +{ + struct drm_display_info *di = &connector->display_info; + + if (di->color_formats & DRM_COLOR_FORMAT_YCRCB444 || + di->color_formats & DRM_COLOR_FORMAT_YCRCB422) { + di->color_formats &= ~(DRM_COLOR_FORMAT_YCRCB422 | + DRM_COLOR_FORMAT_YCRCB444); + di->color_formats |= DRM_COLOR_FORMAT_RGB444; + di->bpc = 8;Probably a stupid question, but are you guaranteed that the panel will support this color format?
Hmm... I'm not sure, but it works on my several panels. I guess RGB is more common then YUV, so if panel support YUV format, it should support RGB888 too.
+ } +I think this can be simplified as follows: /* A comment here about why we're doing this */ u32 mask = DRM_COLOR_FORMAT_YCRCB444 | DRM_COLOR_FORMAT_YCRCB422; if ((di->color_formats & mask)) { DRM_DEBUG_KMS("Swapping display color format from YUV to RGB\n"); di->color_formats &= ~mask; di->color_formats |= DRM_COLOR_FORMAT_RGB444; di->bpc = 8; }
Done, good idea. Thanks, - Yakir
+ return 0; +} + static bool rockchip_dp_drm_encoder_mode_fixup(struct drm_encoder *encoder, const struct drm_display_mode *mode, @@ -313,6 +329,7 @@ static int rockchip_dp_bind(struct device *dev, struct device *master, dp->plat_data.subdev_type = dp_data->chip_type; dp->plat_data.power_on = rockchip_dp_poweron; dp->plat_data.power_off = rockchip_dp_powerdown; + dp->plat_data.get_modes = rockchip_dp_get_modes; return analogix_dp_bind(dev, dp->drm_dev, &dp->plat_data); } -- 1.9.1 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
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