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[PATCH 06/12] drm: bridge/dw_hdmi: clean up HDMI vs DVI mode handling

From Russell King <rmk+kernel@arm.linux.org.uk>
Newsgroups linux.kernel
Subject [PATCH 06/12] drm: bridge/dw_hdmi: clean up HDMI vs DVI mode handling
Date 2015-08-08 18:10 +0200
Message-ID <pVeR5-3EB-31@gated-at.bofh.it> (permalink)
References <pVeR3-3EB-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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The FSL kernel detects the HDMI vendor id, and uses this to set
hdmi->edid_cfg.hdmi_cap, which is then used to set mdvi appropriately,
rather than detecting whether we are outputting a CEA mode.  Update
the dw_hdmi code to use this logic, but lets eliminate the mdvi
variable, prefering the more verbose "hdmi->sink_is_hdmi" instead.

Use the generic drm_detect_hdmi_monitor() to detect a HDMI sink.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/gpu/drm/bridge/dw_hdmi.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/bridge/dw_hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c
index 2e211b8331ed..7f764716f3c4 100644
--- a/drivers/gpu/drm/bridge/dw_hdmi.c
+++ b/drivers/gpu/drm/bridge/dw_hdmi.c
@@ -82,7 +82,6 @@ static const u16 csc_coeff_rgb_in_eitu709[3][4] = {
 };
 
 struct hdmi_vmode {
-	bool mdvi;
 	bool mdataenablepolarity;
 
 	unsigned int mpixelclock;
@@ -123,6 +122,7 @@ struct dw_hdmi {
 
 	struct i2c_adapter *ddc;
 	void __iomem *regs;
+	bool sink_is_hdmi;
 
 	spinlock_t audio_lock;
 	struct mutex audio_mutex;
@@ -913,11 +913,10 @@ static int hdmi_phy_configure(struct dw_hdmi *hdmi, unsigned char prep,
 static int dw_hdmi_phy_init(struct dw_hdmi *hdmi)
 {
 	int i, ret;
-	bool cscon = false;
+	bool cscon;
 
 	/*check csc whether needed activated in HDMI mode */
-	cscon = (is_color_space_conversion(hdmi) &&
-			!hdmi->hdmi_data.video_mode.mdvi);
+	cscon = hdmi->sink_is_hdmi && is_color_space_conversion(hdmi);
 
 	/* HDMI Phy spec says to do the phy initialization sequence twice */
 	for (i = 0; i < 2; i++) {
@@ -1094,9 +1093,9 @@ static void hdmi_av_composer(struct dw_hdmi *hdmi,
 		HDMI_FC_INVIDCONF_IN_I_P_INTERLACED :
 		HDMI_FC_INVIDCONF_IN_I_P_PROGRESSIVE;
 
-	inv_val |= (vmode->mdvi ?
-		HDMI_FC_INVIDCONF_DVI_MODEZ_DVI_MODE :
-		HDMI_FC_INVIDCONF_DVI_MODEZ_HDMI_MODE);
+	inv_val |= hdmi->sink_is_hdmi ?
+		HDMI_FC_INVIDCONF_DVI_MODEZ_HDMI_MODE :
+		HDMI_FC_INVIDCONF_DVI_MODEZ_DVI_MODE;
 
 	hdmi_writeb(hdmi, inv_val, HDMI_FC_INVIDCONF);
 
@@ -1236,10 +1235,8 @@ static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
 
 	if (!hdmi->vic) {
 		dev_dbg(hdmi->dev, "Non-CEA mode used in HDMI\n");
-		hdmi->hdmi_data.video_mode.mdvi = true;
 	} else {
 		dev_dbg(hdmi->dev, "CEA mode used vic=%d\n", hdmi->vic);
-		hdmi->hdmi_data.video_mode.mdvi = false;
 	}
 
 	if ((hdmi->vic == 6) || (hdmi->vic == 7) ||
@@ -1275,10 +1272,8 @@ static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
 	dw_hdmi_enable_video_path(hdmi);
 
 	/* not for DVI mode */
-	if (hdmi->hdmi_data.video_mode.mdvi) {
-		dev_dbg(hdmi->dev, "%s DVI mode\n", __func__);
-	} else {
-		dev_dbg(hdmi->dev, "%s CEA mode\n", __func__);
+	if (hdmi->sink_is_hdmi) {
+		dev_dbg(hdmi->dev, "%s HDMI mode\n", __func__);
 
 		/* HDMI Initialization Step E - Configure audio */
 		hdmi_clk_regenerator_update_pixel_clock(hdmi);
@@ -1286,6 +1281,8 @@ static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
 
 		/* HDMI Initialization Step F - Configure AVI InfoFrame */
 		hdmi_config_AVI(hdmi, mode);
+	} else {
+		dev_dbg(hdmi->dev, "%s DVI mode\n", __func__);
 	}
 
 	hdmi_video_packetize(hdmi);
@@ -1294,7 +1291,7 @@ static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
 	hdmi_tx_hdcp_config(hdmi);
 
 	dw_hdmi_clear_overflow(hdmi);
-	if (hdmi->cable_plugin && !hdmi->hdmi_data.video_mode.mdvi)
+	if (hdmi->cable_plugin && hdmi->sink_is_hdmi)
 		hdmi_enable_overflow_interrupts(hdmi);
 
 	return 0;
@@ -1444,6 +1441,7 @@ static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
 		dev_dbg(hdmi->dev, "got edid: width[%d] x height[%d]\n",
 			edid->width_cm, edid->height_cm);
 
+		hdmi->sink_is_hdmi = drm_detect_hdmi_monitor(edid);
 		drm_mode_connector_update_edid_property(connector, edid);
 		ret = drm_add_edid_modes(connector, edid);
 		kfree(edid);
-- 
2.1.0

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Thread

[PATCH 00/12] dw-hdmi development Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-08-08 18:10 +0200
  [PATCH 05/12] drm: bridge/dw_hdmi: add support for interlaced video  modes Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-08 18:10 +0200
  [PATCH 12/12] drm: bridge/dw_hdmi: improve HDMI enable/disable  handling Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-08 18:10 +0200
  Re: [PATCH 0/9] dw-hdmi audio support Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-08-08 18:10 +0200
    [PATCH 2/9] drm: bridge/dw_hdmi-ahb-audio: parse ELD from HDMI driver Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-08 18:20 +0200
    [PATCH 6/9] drm: bridge/dw_hdmi: adjust pixel clock values in N  calculation Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-08 18:20 +0200
    [PATCH 5/9] drm: bridge/dw_hdmi: avoid being recursive in N  calculation Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-08 18:20 +0200
    [PATCH 4/9] drm: bridge/dw_hdmi-ahb-audio: allow larger buffer sizes Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-08 18:20 +0200
    [PATCH 8/9] drm: bridge/dw_hdmi: replace CTS calculation for the ACR Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-08 18:20 +0200
    [PATCH 7/9] drm: bridge/dw_hdmi: remove ratio support from ACR code Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-08 18:20 +0200
    [PATCH 9/9] drm: bridge/dw_hdmi-i2s-audio: add audio driver Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-08 18:20 +0200
      Re: [PATCH 9/9] drm: bridge/dw_hdmi-i2s-audio: add audio driver Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-08-10 17:50 +0200
        Re: [PATCH 9/9] drm: bridge/dw_hdmi-i2s-audio: add audio driver Yakir Yang <ykk@rock-chips.com> - 2015-08-10 18:30 +0200
    [PATCH 1/9] drm: bridge/dw_hdmi-ahb-audio: add audio driver Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-08 18:20 +0200
      Re: [PATCH 1/9] drm: bridge/dw_hdmi-ahb-audio: add audio driver Takashi Iwai <tiwai@suse.de> - 2015-08-10 12:10 +0200
        Re: [PATCH 1/9] drm: bridge/dw_hdmi-ahb-audio: add audio driver Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-08-10 12:40 +0200
          Re: [PATCH 1/9] drm: bridge/dw_hdmi-ahb-audio: add audio driver Takashi Iwai <tiwai@suse.de> - 2015-08-10 14:30 +0200
            Re: [PATCH 1/9] drm: bridge/dw_hdmi-ahb-audio: add audio driver Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-08-10 19:00 +0200
              Re: [PATCH 1/9] drm: bridge/dw_hdmi-ahb-audio: add audio driver Mark Brown <broonie@kernel.org> - 2015-08-10 20:20 +0200
        Re: [PATCH v2 1/9] drm: bridge/dw_hdmi-ahb-audio: add audio driver         David Airlie <airlied@linux.ie>, Sascha Hauer <s.hauer@pengutronix.de>,         linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Jaroslav         Kysela <perex@perex.cz>, linux-rockchip@lists.infradead.org, Mark Brown         <broonie@kernel.org>, Philipp Zabel <p.zabel@pengutronix.de>, Yakir         Yang <ykk@rock-chips.com>, Andy Yan <andy.yan@rock-chips.com>, Jon         Nettleton <jon.nettleton@gmail.com>,         linux-arm-kernel@lists.infradead.org Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-14 16:00 +0200
        Re: [PATCH v2 1/9] drm: bridge/dw_hdmi-ahb-audio: add audio driver Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-14 16:10 +0200
          Re: [alsa-devel] [PATCH v2 1/9] drm: bridge/dw_hdmi-ahb-audio: add audio driver Takashi Iwai <tiwai@suse.de> - 2015-08-14 16:40 +0200
    [PATCH 3/9] drm: bridge/dw_hdmi-ahb-audio: basic support for  multi-channel PCM audio Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-08 18:20 +0200
  [PATCH 08/12] drm: bridge/dw_hdmi: avoid enabling interface in  mode_set Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-08 18:10 +0200
  [PATCH 04/12] gpu: imx: fix support for interlaced modes Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-08 18:10 +0200
  [PATCH 09/12] drm: bridge/dw_hdmi: rename dw_hdmi_phy_enable_power() Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-08 18:10 +0200
  [PATCH 03/12] gpu: imx: simplify sync polarity setting Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-08 18:10 +0200
  [PATCH 01/12] drm: bridge/dw_hdmi: remove pixel repetition setting  for all VICs Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-08 18:10 +0200
  [PATCH 02/12] drm: bridge/dw_hdmi: don't support any pixel doubled  modes Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-08 18:10 +0200
  [PATCH 06/12] drm: bridge/dw_hdmi: clean up HDMI vs DVI mode handling Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-08 18:10 +0200
  [PATCH 11/12] drm: bridge/dw_hdmi: add connector mode forcing Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-08 18:10 +0200
  [PATCH 10/12] drm: bridge/dw_hdmi: fix phy enable/disable handling Russell King <rmk+kernel@arm.linux.org.uk> - 2015-08-08 18:20 +0200
  Re: [PATCH 00/12] dw-hdmi development Thierry Reding <thierry.reding@gmail.com> - 2015-08-10 14:30 +0200
    Re: [PATCH 00/12] dw-hdmi development Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-08-18 12:40 +0200

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