linux-kernel - [PATCH 1/5] drm/exynos: hdmi: Replace drm_detect_hdmi_monitor() with is

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Date:   Thu, 21 Apr 2022 19:07:21 +0200
From:   José Expósito <jose.exposito89@...il.com>
To:     inki.dae@...sung.com
Cc:     jy0922.shim@...sung.com, sw0312.kim@...sung.com,
        kyungmin.park@...sung.com, airlied@...ux.ie, daniel@...ll.ch,
        krzk@...nel.org, alim.akhtar@...sung.com, lgirdwood@...il.com,
        broonie@...nel.org, dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
        hjc@...k-chips.com, heiko@...ech.de,
        linux-rockchip@...ts.infradead.org, alain.volmat@...s.st.com,
        p.zabel@...gutronix.de, mripard@...nel.org, wens@...e.org,
        jernej.skrabec@...il.com, samuel@...lland.org,
        linux-sunxi@...ts.linux.dev, laurent.pinchart@...asonboard.com,
        José Expósito <jose.exposito89@...il.com>
Subject: [PATCH 1/5] drm/exynos: hdmi: Replace drm_detect_hdmi_monitor() with is_hdmi

Once EDID is parsed, the monitor HDMI support information is available
through drm_display_info.is_hdmi.

This driver calls drm_detect_hdmi_monitor() to receive the same
information and stores its own cached value, which is less efficient.

Avoid calling drm_detect_hdmi_monitor() and use drm_display_info.is_hdmi
instead and also remove hdmi_context.dvi_mode as it is no longer
necessary.

Signed-off-by: José Expósito <jose.exposito89@...il.com>
---
 drivers/gpu/drm/exynos/exynos_hdmi.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 7655142a4651..a6743ae87728 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -119,7 +119,6 @@ struct hdmi_context {
 	struct device			*dev;
 	struct drm_device		*drm_dev;
 	struct drm_connector		connector;
-	bool				dvi_mode;
 	struct delayed_work		hotplug_work;
 	struct cec_notifier		*notifier;
 	const struct hdmi_driver_data	*drv_data;
@@ -811,11 +810,12 @@ static int hdmi_audio_infoframe_apply(struct hdmi_context *hdata)
 static void hdmi_reg_infoframes(struct hdmi_context *hdata)
 {
 	struct drm_display_mode *m = &hdata->encoder.crtc->state->mode;
+	struct drm_display_info *display = &hdata->connector.display_info;
 	union hdmi_infoframe frm;
 	u8 buf[25];
 	int ret;
 
-	if (hdata->dvi_mode) {
+	if (!display->is_hdmi) {
 		hdmi_reg_writeb(hdata, HDMI_AVI_CON,
 				HDMI_AVI_CON_DO_NOT_TRANSMIT);
 		hdmi_reg_writeb(hdata, HDMI_VSI_CON,
@@ -893,9 +893,9 @@ static int hdmi_get_modes(struct drm_connector *connector)
 	if (!edid)
 		return -ENODEV;
 
-	hdata->dvi_mode = !drm_detect_hdmi_monitor(edid);
 	DRM_DEV_DEBUG_KMS(hdata->dev, "%s : width[%d] x height[%d]\n",
-			  (hdata->dvi_mode ? "dvi monitor" : "hdmi monitor"),
+			  (connector->display_info.is_hdmi ? "hdmi monitor" :
+							     "dvi monitor"),
 			  edid->width_cm, edid->height_cm);
 
 	drm_connector_update_edid_property(connector, edid);
@@ -1118,9 +1118,10 @@ static void hdmi_audio_config(struct hdmi_context *hdata)
 
 static void hdmi_audio_control(struct hdmi_context *hdata)
 {
+	struct drm_display_info *display = &hdata->connector.display_info;
 	bool enable = !hdata->audio.mute;
 
-	if (hdata->dvi_mode)
+	if (!display->is_hdmi)
 		return;
 
 	hdmi_reg_writeb(hdata, HDMI_AUI_CON, enable ?
@@ -1143,6 +1144,8 @@ static void hdmi_start(struct hdmi_context *hdata, bool start)
 
 static void hdmi_conf_init(struct hdmi_context *hdata)
 {
+	struct drm_display_info *display = &hdata->connector.display_info;
+
 	/* disable HPD interrupts from HDMI IP block, use GPIO instead */
 	hdmi_reg_writemask(hdata, HDMI_INTC_CON, 0, HDMI_INTC_EN_GLOBAL |
 		HDMI_INTC_EN_HPD_PLUG | HDMI_INTC_EN_HPD_UNPLUG);
@@ -1155,7 +1158,7 @@ static void hdmi_conf_init(struct hdmi_context *hdata)
 	/* disable bluescreen */
 	hdmi_reg_writemask(hdata, HDMI_CON_0, 0, HDMI_BLUE_SCR_EN);
 
-	if (hdata->dvi_mode) {
+	if (!display->is_hdmi) {
 		hdmi_reg_writemask(hdata, HDMI_MODE_SEL,
 				HDMI_MODE_DVI_EN, HDMI_MODE_MASK);
 		hdmi_reg_writeb(hdata, HDMI_CON_2,
-- 
2.25.1