OMAPDSS: VENC: Maintian copy of video output polarity info in private data

The VENC driver currently relies on the omap_dss_device struct to configure the
video output polarity. This makes the VENC interface driver dependent on the
omap_dss_device struct.

Make the VENC driver data maintain it's own polarity field. A panel driver
is expected to call omapdss_venc_invert_vid_out_polarity() before enabling the
interface.
Signed-off-by: Archit Taneja <archit@ti.com>

drivers/video/omap2/dss/dss.h

@@ -479,6 +479,8 @@ u32 omapdss_venc_get_wss(struct omap_dss_device *dssdev);
 int omapdss_venc_set_wss(struct omap_dss_device *dssdev, u32 wss);
 void omapdss_venc_set_type(struct omap_dss_device *dssdev,
 		enum omap_dss_venc_type type);
+void omapdss_venc_invert_vid_out_polarity(struct omap_dss_device *dssdev,
+		bool invert_polarity);
 int venc_panel_init(void);
 void venc_panel_exit(void);
 

drivers/video/omap2/dss/venc.c

@@ -303,6 +303,7 @@ static struct {
 
 	struct omap_video_timings timings;
 	enum omap_dss_venc_type type;
+	bool invert_polarity;
 } venc;
 
 static inline void venc_write_reg(int idx, u32 val)
@@ -447,7 +448,7 @@ static int venc_power_on(struct omap_dss_device *dssdev)
 	else /* S-Video */
 		l |= (1 << 0) | (1 << 2);
 
-	if (dssdev->phy.venc.invert_polarity == false)
+	if (venc.invert_polarity == false)
 		l |= 1 << 3;
 
 	venc_write_reg(VENC_OUTPUT_CONTROL, l);
@@ -639,6 +640,16 @@ void omapdss_venc_set_type(struct omap_dss_device *dssdev,
 	mutex_unlock(&venc.venc_lock);
 }
 
+void omapdss_venc_invert_vid_out_polarity(struct omap_dss_device *dssdev,
+		bool invert_polarity)
+{
+	mutex_lock(&venc.venc_lock);
+
+	venc.invert_polarity = invert_polarity;
+
+	mutex_unlock(&venc.venc_lock);
+}
+
 static int __init venc_init_display(struct omap_dss_device *dssdev)
 {
 	DSSDBG("init_display\n");

drivers/video/omap2/dss/venc_panel.c

@@ -130,6 +130,8 @@ static int venc_panel_enable(struct omap_dss_device *dssdev)
 
 	omapdss_venc_set_timings(dssdev, &dssdev->panel.timings);
 	omapdss_venc_set_type(dssdev, dssdev->phy.venc.type);
+	omapdss_venc_invert_vid_out_polarity(dssdev,
+		dssdev->phy.venc.invert_polarity);
 
 	r = omapdss_venc_display_enable(dssdev);
 	if (r)