linux-kernel - [PATCH 2/2] drm: bridge/dw

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Date:	Fri,  7 Aug 2015 15:59:21 +0200
From:	Sascha Hauer <s.hauer@...gutronix.de>
To:	Thierry Reding <treding@...dia.com>
Cc:	Philipp Zabel <p.zabel@...gutronix.de>,
	Russell King <rmk+kernel@....linux.org.uk>,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	Sascha Hauer <s.hauer@...gutronix.de>
Subject: [PATCH 2/2] drm: bridge/dw_hdmi: remove unused code

The cable_plugin field in struct dw_hdmi is never set. Remove it and with
it all code that is only executed when the variable is true.

Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>
---
 drivers/gpu/drm/bridge/dw_hdmi.c | 17 -----------------
 1 file changed, 17 deletions(-)

diff --git a/drivers/gpu/drm/bridge/dw_hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c
index 8d9b53c..401067e 100644
--- a/drivers/gpu/drm/bridge/dw_hdmi.c
+++ b/drivers/gpu/drm/bridge/dw_hdmi.c
@@ -118,7 +118,6 @@ struct dw_hdmi {
 	int vic;
 
 	struct edid *edid;
-	bool cable_plugin;
 
 	bool phy_enabled;
 	struct drm_display_mode previous_mode;
@@ -1164,24 +1163,10 @@ static void dw_hdmi_clear_overflow(struct dw_hdmi *hdmi)
 		hdmi_writeb(hdmi, val, HDMI_FC_INVIDCONF);
 }
 
-static void hdmi_enable_overflow_interrupts(struct dw_hdmi *hdmi)
-{
-	hdmi_writeb(hdmi, 0, HDMI_FC_MASK2);
-	hdmi_writeb(hdmi, 0, HDMI_IH_MUTE_FC_STAT2);
-}
-
-static void hdmi_disable_overflow_interrupts(struct dw_hdmi *hdmi)
-{
-	hdmi_writeb(hdmi, HDMI_IH_MUTE_FC_STAT2_OVERFLOW_MASK,
-		    HDMI_IH_MUTE_FC_STAT2);
-}
-
 static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
 {
 	int ret;
 
-	hdmi_disable_overflow_interrupts(hdmi);
-
 	hdmi->vic = drm_match_cea_mode(mode);
 
 	if (!hdmi->vic) {
@@ -1255,8 +1240,6 @@ 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)
-		hdmi_enable_overflow_interrupts(hdmi);
 
 	return 0;
 }
-- 
2.4.6

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