Expose BT.2020 RGB and YCC colorimetry so userspace can enable HDR output. Also explicitly expose BT.709 YCC as it is listed in the Rockchip RK3588 TRM V1.0-Part2 20220309 data sheet.
Tested on a Radxa Rock 5B (RK3588) with an LG OLED55B87LC in KDE Plasma 6.7.5: enabling HDR switches the colorspace to BT.2020, and disabling it restores the default. Signed-off-by: Jan Claußen <[email protected]> --- drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c index 10c5b6d6406e..e677aacf5a33 100644 --- a/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c +++ b/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c @@ -621,6 +621,10 @@ static int dw_hdmi_qp_rockchip_bind(struct device *dev, struct device *master, BIT(DRM_OUTPUT_COLOR_FORMAT_YCBCR444) | BIT(DRM_OUTPUT_COLOR_FORMAT_YCBCR422); + plat_data.supported_colorspaces = BIT(DRM_MODE_COLORIMETRY_BT709_YCC) | + BIT(DRM_MODE_COLORIMETRY_BT2020_RGB) | + BIT(DRM_MODE_COLORIMETRY_BT2020_YCC); + encoder = &hdmi->encoder.encoder; encoder->possible_crtcs = drm_of_find_possible_crtcs(drm, dev->of_node); -- 2.56.0
