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From: ville.syrjala@linux.intel.com
To: dri-devel@lists.freedesktop.org
Cc: intel-gfx@lists.freedesktop.org
Subject: [PATCH 2/5] drm/edid: Introduce drm_default_rgb_quant_range()
Date: Wed, 11 Jan 2017 14:57:22 +0200	[thread overview]
Message-ID: <20170111125725.8086-3-ville.syrjala@linux.intel.com> (raw)
In-Reply-To: <20170111125725.8086-1-ville.syrjala@linux.intel.com>

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Make the code selecting the RGB quantization range a little less magicy
by wrapping it up in a small helper.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/drm_edid.c        | 18 ++++++++++++++++++
 drivers/gpu/drm/i915/intel_dp.c   |  4 +++-
 drivers/gpu/drm/i915/intel_hdmi.c |  3 ++-
 drivers/gpu/drm/vc4/vc4_hdmi.c    |  4 +++-
 include/drm/drm_edid.h            |  2 ++
 5 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 4ff04aa84dd0..304c583b8000 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -3768,6 +3768,24 @@ bool drm_rgb_quant_range_selectable(struct edid *edid)
 }
 EXPORT_SYMBOL(drm_rgb_quant_range_selectable);
 
+/**
+ * drm_default_rgb_quant_range - default RGB quantization range
+ * @mode: display mode
+ *
+ * Determine the default RGB quantization range for the mode,
+ * as specified in CEA-861.
+ *
+ * Return: The default RGB quantization range for the mode
+ */
+enum hdmi_quantization_range
+drm_default_rgb_quant_range(const struct drm_display_mode *mode)
+{
+	return drm_match_cea_mode(mode) > 1 ?
+		HDMI_QUANTIZATION_RANGE_LIMITED :
+		HDMI_QUANTIZATION_RANGE_FULL;
+}
+EXPORT_SYMBOL(drm_default_rgb_quant_range);
+
 static void drm_parse_hdmi_deep_color_info(struct drm_connector *connector,
 					   const u8 *hdmi)
 {
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 343e1d9fa761..d4befbbe834a 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1713,7 +1713,9 @@ intel_dp_compute_config(struct intel_encoder *encoder,
 		 * VESA DisplayPort Ver.1.2a - 5.1.1.1 Video Colorimetry
 		 */
 		pipe_config->limited_color_range =
-			bpp != 18 && drm_match_cea_mode(adjusted_mode) > 1;
+			bpp != 18 &&
+			drm_default_rgb_quant_range(adjusted_mode) ==
+			HDMI_QUANTIZATION_RANGE_LIMITED;
 	} else {
 		pipe_config->limited_color_range =
 			intel_dp->limited_color_range;
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 0bcfead14571..19bd13f53729 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -1330,7 +1330,8 @@ bool intel_hdmi_compute_config(struct intel_encoder *encoder,
 		/* See CEA-861-E - 5.1 Default Encoding Parameters */
 		pipe_config->limited_color_range =
 			pipe_config->has_hdmi_sink &&
-			drm_match_cea_mode(adjusted_mode) > 1;
+			drm_default_rgb_quant_range(adjusted_mode) ==
+			HDMI_QUANTIZATION_RANGE_LIMITED;
 	} else {
 		pipe_config->limited_color_range =
 			intel_hdmi->limited_color_range;
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index c4cb2e26de32..d79466a42690 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -463,7 +463,9 @@ static void vc4_hdmi_encoder_mode_set(struct drm_encoder *encoder,
 	csc_ctl = VC4_SET_FIELD(VC4_HD_CSC_CTL_ORDER_BGR,
 				VC4_HD_CSC_CTL_ORDER);
 
-	if (vc4_encoder->hdmi_monitor && drm_match_cea_mode(mode) > 1) {
+	if (vc4_encoder->hdmi_monitor &&
+	    drm_default_rgb_quant_range(adjusted_mode) ==
+	    HDMI_QUANTIZATION_RANGE_LIMITED) {
 		/* CEA VICs other than #1 requre limited range RGB
 		 * output unless overridden by an AVI infoframe.
 		 * Apply a colorspace conversion to squash 0-255 down
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index 838eaf2b42e9..25cdf5f7a0d8 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -441,6 +441,8 @@ enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code);
 bool drm_detect_hdmi_monitor(struct edid *edid);
 bool drm_detect_monitor_audio(struct edid *edid);
 bool drm_rgb_quant_range_selectable(struct edid *edid);
+enum hdmi_quantization_range
+drm_default_rgb_quant_range(const struct drm_display_mode *mode);
 int drm_add_modes_noedid(struct drm_connector *connector,
 			 int hdisplay, int vdisplay);
 void drm_set_preferred_mode(struct drm_connector *connector,
-- 
2.10.2

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  parent reply	other threads:[~2017-01-11 12:57 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-11 12:57 [PATCH 0/5] drm/edid: Improve RGB limited range handling a bit ville.syrjala
2017-01-11 12:57 ` [PATCH 1/5] drm/edid: Have drm_edid.h include hdmi.h ville.syrjala
2017-01-12  9:22   ` Jani Nikula
2017-01-11 12:57 ` ville.syrjala [this message]
2017-01-11 14:18   ` [PATCH v2 2/5] drm/edid: Introduce drm_default_rgb_quant_range() ville.syrjala
2017-01-12  9:29     ` Jani Nikula
2017-01-12 14:24       ` [Intel-gfx] " Ville Syrjälä
2017-01-11 16:16   ` [PATCH " Daniel Vetter
2017-01-11 16:31     ` Ville Syrjälä
2017-01-12  8:00       ` Daniel Vetter
2017-01-12  8:13         ` Michel Dänzer
2017-01-20 19:50   ` Eric Anholt
2017-01-20 20:00     ` Ville Syrjälä
2017-01-20 20:37       ` [Intel-gfx] " Ville Syrjälä
2017-01-11 12:57 ` [PATCH 3/5] drm/edid: Introduce drm_hdmi_avi_infoframe_quant_range() ville.syrjala
2017-01-12  9:37   ` Jani Nikula
2017-01-11 12:57 ` [PATCH 4/5] drm/edid: Set AVI infoframe Q even when QS=0 ville.syrjala
2017-01-12  9:45   ` Jani Nikula
2017-01-11 12:57 ` [PATCH 5/5] drm/edid: Set YQ bits in the AVI infoframe according to CEA-861-F ville.syrjala
2017-01-12 10:13   ` Jani Nikula
2017-01-12 10:35     ` Ville Syrjälä
2017-01-12 11:13       ` Jani Nikula
2017-01-26 19:08 ` [PATCH 0/5] drm/edid: Improve RGB limited range handling a bit Ville Syrjälä

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