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Subject[PATCH v2 1/2] drm/bridge: tc358767: Introduce __tc_bridge_enable/disable()
Date
Expose underlying implementation of bridge's enable/disable functions,
so it would be possible to use them in other parts of the driver.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Cory Tusar <cory.tusar@zii.aero>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
---
drivers/gpu/drm/bridge/tc358767.c | 32 ++++++++++++++++++++++---------
1 file changed, 23 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
index 6308d93ad91d..8532048e0550 100644
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@@ -1220,39 +1220,43 @@ static void tc_bridge_pre_enable(struct drm_bridge *bridge)
drm_panel_prepare(tc->panel);
}

-static void tc_bridge_enable(struct drm_bridge *bridge)
+static int __tc_bridge_enable(struct tc_data *tc)
{
- struct tc_data *tc = bridge_to_tc(bridge);
int ret;

ret = tc_get_display_props(tc);
if (ret < 0) {
dev_err(tc->dev, "failed to read display props: %d\n", ret);
- return;
+ return ret;
}

ret = tc_main_link_enable(tc);
if (ret < 0) {
dev_err(tc->dev, "main link enable error: %d\n", ret);
- return;
+ return ret;
}

ret = tc_stream_enable(tc);
if (ret < 0) {
dev_err(tc->dev, "main link stream start error: %d\n", ret);
tc_main_link_disable(tc);
- return;
+ return ret;
}

- drm_panel_enable(tc->panel);
+ return 0;
}

-static void tc_bridge_disable(struct drm_bridge *bridge)
+static void tc_bridge_enable(struct drm_bridge *bridge)
{
struct tc_data *tc = bridge_to_tc(bridge);
- int ret;

- drm_panel_disable(tc->panel);
+ if (!__tc_bridge_enable(tc))
+ drm_panel_enable(tc->panel);
+}
+
+static int __tc_bridge_disable(struct tc_data *tc)
+{
+ int ret;

ret = tc_stream_disable(tc);
if (ret < 0)
@@ -1261,6 +1265,16 @@ static void tc_bridge_disable(struct drm_bridge *bridge)
ret = tc_main_link_disable(tc);
if (ret < 0)
dev_err(tc->dev, "main link disable error: %d\n", ret);
+
+ return ret;
+}
+
+static void tc_bridge_disable(struct drm_bridge *bridge)
+{
+ struct tc_data *tc = bridge_to_tc(bridge);
+
+ drm_panel_disable(tc->panel);
+ __tc_bridge_disable(tc);
}

static void tc_bridge_post_disable(struct drm_bridge *bridge)
--
2.21.0
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