From mboxrd@z Thu Jan  1 00:00:00 1970
From: jagan@amarulasolutions.com (Jagan Teki)
Date: Fri, 16 Nov 2018 22:09:10 +0530
Subject: [PATCH v2 06/12] drm/sun4i: sun6i_mipi_dsi: Probe tcon0 during
 dsi_bind
In-Reply-To: <20181116163916.29621-1-jagan@amarulasolutions.com>
References: <20181116163916.29621-1-jagan@amarulasolutions.com>
Message-ID: <20181116163916.29621-7-jagan@amarulasolutions.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.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@amarulasolutions.com>
---
 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 d60955880c43..66a01061e51d 100644
--- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
+++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
@@ -25,6 +25,7 @@
 #include <drm/drm_panel.h>
 
 #include "sun4i_drv.h"
+#include "sun4i_tcon.h"
 #include "sun6i_mipi_dsi.h"
 
 #include <video/mipi_display.h>
@@ -1007,6 +1008,7 @@ 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)
@@ -1014,6 +1016,11 @@ static int sun6i_dsi_bind(struct device *dev, struct device *master,
 
 	dsi->drv = drv;
 
+	if (!tcon0)
+		return -EPROBE_DEFER;
+
+	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 0df60f84bab3..3c532e83958d 100644
--- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h
+++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h
@@ -40,6 +40,7 @@ struct sun6i_dsi {
 
 	struct device		*dev;
 	struct sun4i_drv	*drv;
+	struct sun4i_tcon	*tcon;
 	struct mipi_dsi_device	*device;
 	struct drm_panel	*panel;
 	const struct sun6i_dsi_variant	*variant;
-- 
2.18.0.321.gffc6fa0e3