[PATCH] drm/bridge: dw-hdmi: Remove unused hdmi_enable_overflow_interrupts()

[Fabio Estevam]

From: Fabio Estevam <fabio.estevam at nxp.com>

The cable_plugin member never receives an assignment, so it is always
false, which causes hdmi_enable_overflow_interrupts() to never
be called as per the logic below:

	if (hdmi->cable_plugin && hdmi->sink_is_hdmi)
		hdmi_enable_overflow_interrupts(hdmi);

This has been the case since the driver was originally introduced
in commit 9aaf880ed4ee ("imx-drm: Add mx6 hdmi transmitter support").

Remove the cable_plugin element and the hdmi_enable_overflow_interrupts()
function that is never called.

Signed-off-by: Fabio Estevam <fabio.estevam at nxp.com>
---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index a38db40..b0b9570 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -147,7 +147,6 @@ struct dw_hdmi {
 	int vic;
 
 	u8 edid[HDMI_EDID_LEN];
-	bool cable_plugin;
 
 	struct {
 		const struct dw_hdmi_phy_ops *ops;
@@ -1658,12 +1657,6 @@ 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,
@@ -1753,8 +1746,6 @@ 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->sink_is_hdmi)
-		hdmi_enable_overflow_interrupts(hdmi);
 
 	return 0;
 }
-- 
2.7.4