drm/omap: panel-dsi-cm: drop hardcoded VC

Use dsi->channel everywhere, which originates from DT.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201215104657.802264-16-tomi.valkeinen@ti.com

drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c

@@ -27,9 +27,6 @@
 
 #include "../dss/omapdss.h"
 
-/* DSI Virtual channel. Hardcoded for now. */
-#define TCH 0
-
 #define DCS_READ_NUM_ERRORS	0x05
 #define DCS_BRIGHTNESS		0x51
 #define DCS_CTRL_DISPLAY	0x53
@@ -73,7 +70,6 @@ struct panel_drv_data {
 	bool te_enabled;
 
 	atomic_t do_update;
-	int channel;
 
 	struct delayed_work te_timeout_work;
 
@@ -274,7 +270,7 @@ static int dsicm_exit_ulps(struct panel_drv_data *ddata)
 		return 0;
 
 	src->ops->enable(src);
-	src->ops->dsi.enable_hs(src, ddata->channel, true);
+	src->ops->dsi.enable_hs(src, ddata->dsi->channel, true);
 
 	r = _dsicm_enable_te(ddata, true);
 	if (r) {
@@ -591,7 +587,7 @@ static int dsicm_power_on(struct panel_drv_data *ddata)
 
 	dsicm_hw_reset(ddata);
 
-	src->ops->dsi.enable_hs(src, ddata->channel, false);
+	src->ops->dsi.enable_hs(src, ddata->dsi->channel, false);
 
 	r = dsicm_sleep_out(ddata);
 	if (r)
@@ -622,7 +618,7 @@ static int dsicm_power_on(struct panel_drv_data *ddata)
 	if (r)
 		goto err;
 
-	r = src->ops->dsi.enable_video_output(src, ddata->channel);
+	r = src->ops->dsi.enable_video_output(src, ddata->dsi->channel);
 	if (r)
 		goto err;
 
@@ -634,7 +630,7 @@ static int dsicm_power_on(struct panel_drv_data *ddata)
 		ddata->intro_printed = true;
 	}
 
-	src->ops->dsi.enable_hs(src, ddata->channel, true);
+	src->ops->dsi.enable_hs(src, ddata->dsi->channel, true);
 
 	return 0;
 err:
@@ -658,7 +654,7 @@ static void dsicm_power_off(struct panel_drv_data *ddata)
 	struct omap_dss_device *src = ddata->src;
 	int r;
 
-	src->ops->dsi.disable_video_output(src, ddata->channel);
+	src->ops->dsi.disable_video_output(src, ddata->dsi->channel);
 
 	r = mipi_dsi_dcs_set_display_off(ddata->dsi);
 	if (!r)
@@ -777,7 +773,7 @@ static irqreturn_t dsicm_te_isr(int irq, void *data)
 	if (old) {
 		cancel_delayed_work(&ddata->te_timeout_work);
 
-		r = src->ops->dsi.update(src, ddata->channel, dsicm_framedone_cb,
+		r = src->ops->dsi.update(src, ddata->dsi->channel, dsicm_framedone_cb,
 				ddata);
 		if (r)
 			goto err;
@@ -834,7 +830,7 @@ static int dsicm_update(struct omap_dss_device *dssdev,
 				msecs_to_jiffies(250));
 		atomic_set(&ddata->do_update, 1);
 	} else {
-		r = src->ops->dsi.update(src, ddata->channel, dsicm_framedone_cb,
+		r = src->ops->dsi.update(src, ddata->dsi->channel, dsicm_framedone_cb,
 				ddata);
 		if (r)
 			goto err;
@@ -1110,8 +1106,6 @@ static int dsicm_probe_of(struct mipi_dsi_device *dsi)
 	struct display_timing timing;
 	int err;
 
-	ddata->channel = TCH;
-
 	ddata->reset_gpio = devm_gpiod_get(&dsi->dev, "reset", GPIOD_OUT_LOW);
 	if (IS_ERR(ddata->reset_gpio)) {
 		err = PTR_ERR(ddata->reset_gpio);