From: Christoph Manszewski <c.manszewski@samsung.com>
To: dri-devel@lists.freedesktop.org
Cc: Christoph Manszewski <c.manszewski@samsung.com>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <maxime.ripard@bootlin.com>,
Sean Paul <sean@poorly.run>, David Airlie <airlied@linux.ie>,
Inki Dae <inki.dae@samsung.com>,
Joonyoung Shim <jy0922.shim@samsung.com>,
Seung-Woo Kim <sw0312.kim@samsung.com>,
Kyungmin Park <kyungmin.park@samsung.com>,
Kukjin Kim <kgene@kernel.org>,
Krzysztof Kozlowski <krzk@kernel.org>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org
Subject: [PATCH 1/2] drm/edid: Add colorimetry helper function
Date: Fri, 30 Nov 2018 13:02:11 +0100 [thread overview]
Message-ID: <1543579332-16609-2-git-send-email-c.manszewski@samsung.com> (raw)
In-Reply-To: <1543579332-16609-1-git-send-email-c.manszewski@samsung.com>
In analogy to drm_default_rgb_quant_range, create
drm_default_colorimetry helper function to determine the default
colorimetry value based on drm_display_mode. Currently there isn't any
standarized way to determine the default color space format.
Signed-off-by: Christoph Manszewski <c.manszewski@samsung.com>
---
drivers/gpu/drm/drm_edid.c | 12 ++++++++++++
include/drm/drm_edid.h | 2 ++
2 files changed, 14 insertions(+)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index b506e3622b08..03ac833dcc3c 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -4278,6 +4278,18 @@ drm_default_rgb_quant_range(const struct drm_display_mode *mode)
}
EXPORT_SYMBOL(drm_default_rgb_quant_range);
+enum hdmi_colorimetry
+drm_default_colorimetry(const struct drm_display_mode *mode)
+{
+ if (mode->vdisplay < 720)
+ return HDMI_COLORIMETRY_ITU_601;
+ else if (mode->vdisplay <= 1080)
+ return HDMI_COLORIMETRY_ITU_709;
+ else
+ return HDMI_COLORIMETRY_EXTENDED;
+}
+EXPORT_SYMBOL(drm_default_colorimetry);
+
static void drm_parse_ycbcr420_deep_color_info(struct drm_connector *connector,
const u8 *db)
{
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index e3c404833115..da43a5d02f7f 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -474,6 +474,8 @@ 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);
+enum hdmi_colorimetry
+drm_default_colorimetry(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,
--
2.7.4
next prev parent reply other threads:[~2018-11-30 12:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20181130120225eucas1p2563258e9ede809b9d82af135e1442d80@eucas1p2.samsung.com>
2018-11-30 12:02 ` [PATCH 0/2] drm: Create and use helper function Christoph Manszewski
[not found] ` <CGME20181130120228eucas1p17dd7e4da8adb8bb8c88f1e372fb0ebd9@eucas1p1.samsung.com>
2018-11-30 12:02 ` Christoph Manszewski [this message]
[not found] ` <CGME20181130120230eucas1p28cfa1960874470828230d288830f6974@eucas1p2.samsung.com>
2018-11-30 12:02 ` [PATCH 2/2] drm/exynos: mixer: Use colorimetry " Christoph Manszewski
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