From 2d8bd2bf0d8eb752a58784ca890643176f595651 Mon Sep 17 00:00:00 2001
From: Shashank Sharma <shashank.sharma@intel.com>
Date: Fri, 21 Jul 2017 20:55:08 +0530
Subject: [PATCH] drm/i915: set colorspace for YCBCR420 outputs
Git-commit: 2d8bd2bf0d8eb752a58784ca890643176f595651
Patch-mainline: v4.14-rc1
References: FATE#322643 bsc#1055900
When output colorspace is YCBCR420, we have to load the
corresponding colorspace in AVI infoframe. This patch fills
the colorspace of AVI infoframe as per the output mode.
V2: Rebase
V3: Rebase
V4: Rebase
V5: Added r-b from Ander
V6: Checking RGB/YCBCR420 output only (Ville)
V7: Add colorspace info in driver(not drm layer) (Ville)
V8: Rebase
V9: Added r-b from Ville
V10: Added r-b from Imre
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Reviewed-by: Ville Syrjala <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1500650709-14447-6-git-send-email-shashank.sharma@intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/i915/intel_hdmi.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -472,12 +472,18 @@ static void intel_hdmi_set_avi_infoframe
return;
}
+ if (crtc_state->ycbcr420)
+ frame.avi.colorspace = HDMI_COLORSPACE_YUV420;
+ else
+ frame.avi.colorspace = HDMI_COLORSPACE_RGB;
+
drm_hdmi_avi_infoframe_quant_range(&frame.avi, adjusted_mode,
crtc_state->limited_color_range ?
HDMI_QUANTIZATION_RANGE_LIMITED :
HDMI_QUANTIZATION_RANGE_FULL,
intel_hdmi->rgb_quant_range_selectable);
+ /* TODO: handle pixel repetition for YCBCR420 outputs */
intel_write_infoframe(encoder, crtc_state, &frame);
}