drm/edid: Pass connector to AVI infoframe functions

Make life easier for drivers by simply passing the connector
to drm_hdmi_avi_infoframe_from_display_mode() and
drm_hdmi_avi_infoframe_quant_range(). That way drivers don't
need to worry about is_hdmi2_sink mess.

v2: Make is_hdmi2_sink() return true for sil-sii8620
    Adapt to omap/vc4 changes

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com>
Cc: Archit Taneja <architt@codeaurora.org>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: CK Hu <ck.hu@mediatek.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Sandy Huang <hjc@rock-chips.com>
Cc: "Heiko Stübner" <heiko@sntech.de>
Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: Vincent Abriou <vincent.abriou@st.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: amd-gfx@lists.freedesktop.org
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Cc: nouveau@lists.freedesktop.org
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190108172828.15184-1-ville.syrjala@linux.intel.com

1 files changed, 21 insertions, 12 deletions

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index b506e3622b08..cd25bd08bf53 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -4830,19 +4830,32 @@ void drm_set_preferred_mode(struct drm_connector *connector,
 }
 EXPORT_SYMBOL(drm_set_preferred_mode);
 
+static bool is_hdmi2_sink(struct drm_connector *connector)
+{
+	/*
+	 * FIXME: sil-sii8620 doesn't have a connector around when
+	 * we need one, so we have to be prepared for a NULL connector.
+	 */
+	if (!connector)
+		return true;
+
+	return connector->display_info.hdmi.scdc.supported ||
+		connector->display_info.color_formats & DRM_COLOR_FORMAT_YCRCB420;
+}
+
 /**
  * drm_hdmi_avi_infoframe_from_display_mode() - fill an HDMI AVI infoframe with
  *                                              data from a DRM display mode
  * @frame: HDMI AVI infoframe
+ * @connector: the connector
  * @mode: DRM display mode
- * @is_hdmi2_sink: Sink is HDMI 2.0 compliant
  *
  * Return: 0 on success or a negative error code on failure.
  */
 int
 drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
-					 const struct drm_display_mode *mode,
-					 bool is_hdmi2_sink)
+					 struct drm_connector *connector,
+					 const struct drm_display_mode *mode)
 {
 	enum hdmi_picture_aspect picture_aspect;
 	int err;
@@ -4864,7 +4877,7 @@ drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
 	 * HDMI 2.0 VIC range: 1 <= VIC <= 107 (CEA-861-F). So we
 	 * have to make sure we dont break HDMI 1.4 sinks.
 	 */
-	if (!is_hdmi2_sink && frame->video_code > 64)
+	if (!is_hdmi2_sink(connector) && frame->video_code > 64)
 		frame->video_code = 0;
 
 	/*
@@ -4923,21 +4936,17 @@ EXPORT_SYMBOL(drm_hdmi_avi_infoframe_from_display_mode);
  * drm_hdmi_avi_infoframe_quant_range() - fill the HDMI AVI infoframe
  *                                        quantization range information
  * @frame: HDMI AVI infoframe
+ * @connector: the connector
  * @mode: DRM display mode
  * @rgb_quant_range: RGB quantization range (Q)
  * @rgb_quant_range_selectable: Sink support selectable RGB quantization range (QS)
- * @is_hdmi2_sink: HDMI 2.0 sink, which has different default recommendations
- *
- * Note that @is_hdmi2_sink can be derived by looking at the
- * &drm_scdc.supported flag stored in &drm_hdmi_info.scdc,
- * &drm_display_info.hdmi, which can be found in &drm_connector.display_info.
  */
 void
 drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame,
+				   struct drm_connector *connector,
 				   const struct drm_display_mode *mode,
 				   enum hdmi_quantization_range rgb_quant_range,
-				   bool rgb_quant_range_selectable,
-				   bool is_hdmi2_sink)
+				   bool rgb_quant_range_selectable)
 {
 	/*
 	 * CEA-861:
@@ -4968,7 +4977,7 @@ drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame,
 	 * we limit non-zero YQ to HDMI 2.0 sinks only as HDMI 2.0 is based
 	 * on on CEA-861-F.
 	 */
-	if (!is_hdmi2_sink ||
+	if (!is_hdmi2_sink(connector) ||
 	    rgb_quant_range == HDMI_QUANTIZATION_RANGE_LIMITED)
 		frame->ycc_quantization_range =
 			HDMI_YCC_QUANTIZATION_RANGE_LIMITED;