From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Manszewski Subject: [PATCH 1/2] drm/edid: Add colorimetry helper function Date: Fri, 30 Nov 2018 13:02:11 +0100 Message-ID: <1543579332-16609-2-git-send-email-c.manszewski@samsung.com> References: <1543579332-16609-1-git-send-email-c.manszewski@samsung.com> Content-Type: text/plain; charset="utf-8" Return-path: In-Reply-To: <1543579332-16609-1-git-send-email-c.manszewski@samsung.com> Sender: linux-kernel-owner@vger.kernel.org To: dri-devel@lists.freedesktop.org Cc: Christoph Manszewski , Maarten Lankhorst , Maxime Ripard , Sean Paul , David Airlie , Inki Dae , Joonyoung Shim , Seung-Woo Kim , Kyungmin Park , Kukjin Kim , Krzysztof Kozlowski , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org 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 --- 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