[PATCH 1/5] drm/bridge: tc358762: Split register programming from pre-enable to enable

[Marek Vasut]

Move the register programming part, which actually enables the bridge and
makes it push data out of its DPI side, into the enable callback. The DSI
host like DSIM may not be able to transmit commands in pre_enable, moving
the register programming into enable assures it can transmit commands.

Signed-off-by: Marek Vasut <marex at denx.de>
---
Cc: Andrzej Hajda <andrzej.hajda at intel.com>
Cc: Daniel Vetter <daniel at ffwll.ch>
Cc: David Airlie <airlied at gmail.com>
Cc: Jernej Skrabec <jernej.skrabec at gmail.com>
Cc: Jonas Karlman <jonas at kwiboo.se>
Cc: Laurent Pinchart <Laurent.pinchart at ideasonboard.com>
Cc: Neil Armstrong <neil.armstrong at linaro.org>
Cc: Robert Foss <rfoss at kernel.org>
Cc: dri-devel at lists.freedesktop.org
---
 drivers/gpu/drm/bridge/tc358762.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/tc358762.c b/drivers/gpu/drm/bridge/tc358762.c
index 5641395fd310e..df9703eacab1f 100644
--- a/drivers/gpu/drm/bridge/tc358762.c
+++ b/drivers/gpu/drm/bridge/tc358762.c
@@ -162,11 +162,17 @@ static void tc358762_pre_enable(struct drm_bridge *bridge)
 		usleep_range(5000, 10000);
 	}
 
+	ctx->pre_enabled = true;
+}
+
+static void tc358762_enable(struct drm_bridge *bridge)
+{
+	struct tc358762 *ctx = bridge_to_tc358762(bridge);
+	int ret;
+
 	ret = tc358762_init(ctx);
 	if (ret < 0)
 		dev_err(ctx->dev, "error initializing bridge (%d)\n", ret);
-
-	ctx->pre_enabled = true;
 }
 
 static int tc358762_attach(struct drm_bridge *bridge,
@@ -181,6 +187,7 @@ static int tc358762_attach(struct drm_bridge *bridge,
 static const struct drm_bridge_funcs tc358762_bridge_funcs = {
 	.post_disable = tc358762_post_disable,
 	.pre_enable = tc358762_pre_enable,
+	.enable = tc358762_enable,
 	.attach = tc358762_attach,
 };
 
-- 
2.39.2