[PATCH 1/2] drm/edid: Add colorimetry helper function
From: Christoph Manszewski <hidden>
Date: 2018-11-30 12:02:34
Also in:
dri-devel, linux-samsung-soc, lkml
Subsystem:
drm drivers, drm drivers and misc gpu patches, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Linus Torvalds
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 <redacted> --- 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
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel