From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jagan Teki <jagan@amarulasolutions.com>
Subject: [PATCH v8 07/10] drm/sun4i: sun6i_mipi_dsi: Probe tcon0 during dsi_bind
Date: Fri, 15 Feb 2019 01:02:34 +0530
Message-ID: <20190214193236.7504-8-jagan@amarulasolutions.com>
References: <20190214193236.7504-1-jagan@amarulasolutions.com>
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To: Maxime Ripard <maxime.ripard@bootlin.com>, David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>, Chen-Yu Tsai <wens@csie.org>
Cc: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-amarula@amarulasolutions.com, Michael Trimarchi <michael@amarulasolutions.com>, Jagan Teki <jagan@amarulasolutions.com>
List-Id: dri-devel@lists.freedesktop.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>
Tested-by: Merlijn Wajer <merlijn@wizzup.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 ab95e2a873b5..62b4c822bf18 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_probe_helper.h>
 
 #include "sun4i_drv.h"
+#include "sun4i_tcon.h"
 #include "sun6i_mipi_dsi.h"
 
 #include <video/mipi_display.h>
@@ -996,6 +997,7 @@ 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)
@@ -1003,6 +1005,11 @@ 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 a07090579f84..747c451a9a20 100644
--- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h
+++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h
@@ -26,6 +26,7 @@ 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