[PATCH v7 06/23] drm/sun4i: sun6i_mipi_dsi: Probe tcon0 during dsi_bind

[Jagan Teki <jagan-dyjBcgdgk7Pe9wHmmfpqLFaTQe2KTcn/@public.gmane.org>]

Probe tcon0 during dsi_bind, so-that the tcon attributes like
divider value, clock rate can get whenever it need.

Signed-off-by: Jagan Teki <jagan-dyjBcgdgk7Pe9wHmmfpqLFaTQe2KTcn/@public.gmane.org>
Tested-by: Merlijn Wajer <merlijn-tF0PIh4TN3odnm+yROfE0A@public.gmane.org>
---
 drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 7 +++++++
 drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h | 1 +
 2 files changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
index 16a86d35dc5a..2aeaa19a8d1e 100644
--- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
+++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
@@ -24,6 +24,7 @@
 #include <drm/drm_panel.h>
 
 #include "sun4i_drv.h"
+#include "sun4i_tcon.h"
 #include "sun6i_mipi_dsi.h"
 
 #include <video/mipi_display.h>
@@ -947,6 +948,7 @@ static int sun6i_dsi_bind(struct device *dev, struct device *master,
 	struct drm_device *drm = data;
 	struct sun4i_drv *drv = drm->dev_private;
 	struct sun6i_dsi *dsi = dev_get_drvdata(dev);
+	struct sun4i_tcon *tcon0 = sun4i_get_tcon0(drm);
 	int ret;
 
 	if (!dsi->panel)
@@ -954,6 +956,11 @@ static int sun6i_dsi_bind(struct device *dev, struct device *master,
 
 	dsi->drv = drv;
 
+	if (!tcon0)
+		return -EINVAL;
+
+	dsi->tcon = tcon0;
+
 	drm_encoder_helper_add(&dsi->encoder,
 			       &sun6i_dsi_enc_helper_funcs);
 	ret = drm_encoder_init(drm,
diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h
index dbbc5b3ecbda..257cca660da0 100644
--- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h
+++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h
@@ -33,6 +33,7 @@ struct sun6i_dsi {
 
 	struct device		*dev;
 	struct sun4i_drv	*drv;
+	struct sun4i_tcon	*tcon;
 	struct mipi_dsi_device	*device;
 	struct drm_panel	*panel;
 };
-- 
2.18.0.321.gffc6fa0e3