MLK-18163-2: drm: imx: dcss: Fix bit depth checking for YUV420

When YUV420 is used, we need to check that the deep color mode actually
supports the bit depth required. Currently, the code checks the RGB bit
depth.

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@nxp.com>
(cherry picked from commit 5ac33861906cb7be660cc5c0a0f494194a81275a)

diff --git a/drivers/gpu/drm/imx/dcss/dcss-crtc.c b/drivers/gpu/drm/imx/dcss/dcss-crtc.c
index a3ff82c..c956bc5 100644 (file)
--- a/drivers/gpu/drm/imx/dcss/dcss-crtc.c
+++ b/drivers/gpu/drm/imx/dcss/dcss-crtc.c
@@ -191,7 +191,7 @@ void dcss_crtc_setup_opipe(struct drm_crtc *crtc, struct drm_connector *conn,
        /* FIXME: we should get the connector colorspace some other way */
        if (vic == 97 &&
            (di->color_formats & DRM_COLOR_FORMAT_YCRCB420) &&
-           (di->bpc >= 10))
+           (di->hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_30))
                dcss_crtc->opipe_pix_format = DRM_FORMAT_P010;
        else
                dcss_crtc->opipe_pix_format = DRM_FORMAT_ARGB8888;