The output node of the TC358767 is only used if another bridge is chained behind it. Panels attached to the TC358767 can be detected using the usual DP AUX probing. This restores the old behavior of ignoring the output if no endpoint is found.
Fixes: ebc944613567 (drm: convert drivers to use drm_of_find_panel_or_bridge) CC: stable@vger.kernel.org Signed-off-by: Lucas Stach l.stach@pengutronix.de --- drivers/gpu/drm/bridge/tc358767.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index 5c26488e7a2d..0529e500c534 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -1255,7 +1255,7 @@ static int tc_probe(struct i2c_client *client, const struct i2c_device_id *id)
/* port@2 is the output port */ ret = drm_of_find_panel_or_bridge(dev->of_node, 2, 0, &tc->panel, NULL); - if (ret) + if (ret && ret != -ENODEV) return ret;
/* Shut down GPIO is optional */
Hi,
On Mon, Jul 10, 2017 at 3:41 PM, Lucas Stach l.stach@pengutronix.de wrote:
The output node of the TC358767 is only used if another bridge is chained behind it. Panels attached to the TC358767 can be detected using the usual DP AUX probing. This restores the old behavior of ignoring the output if no endpoint is found.
Fixes: ebc944613567 (drm: convert drivers to use drm_of_find_panel_or_bridge) CC: stable@vger.kernel.org Signed-off-by: Lucas Stach l.stach@pengutronix.de
Acked-by: Andrey Gusakov andrey.gusakov@cogentembedded.com
---
drivers/gpu/drm/bridge/tc358767.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index 5c26488e7a2d..0529e500c534 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -1255,7 +1255,7 @@ static int tc_probe(struct i2c_client *client, const struct i2c_device_id *id)
/* port@2 is the output port */ ret = drm_of_find_panel_or_bridge(dev->of_node, 2, 0, &tc->panel,NULL);
if (ret)
if (ret && ret != -ENODEV) return ret; /* Shut down GPIO is optional */-- 2.11.0
dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
On 07/27/2017 06:26 PM, Andrey Gusakov wrote:
Hi,
On Mon, Jul 10, 2017 at 3:41 PM, Lucas Stach <l.stach@pengutronix.de mailto:l.stach@pengutronix.de> wrote:
The output node of the TC358767 is only used if another bridge is chained behind it. Panels attached to the TC358767 can be detected using the usual DP AUX probing. This restores the old behavior of ignoring the output if no endpoint is found. Fixes: ebc944613567 (drm: convert drivers to use drm_of_find_panel_or_bridge) CC: stable@vger.kernel.org <mailto:stable@vger.kernel.org> Signed-off-by: Lucas Stach <l.stach@pengutronix.de <mailto:l.stach@pengutronix.de>>Acked-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com mailto:andrey.gusakov@cogentembedded.com>
Thanks, queued to drm-misc-fixes.
Archit
--- drivers/gpu/drm/bridge/tc358767.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index 5c26488e7a2d..0529e500c534 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -1255,7 +1255,7 @@ static int tc_probe(struct i2c_client *client, const struct i2c_device_id *id) /* port@2 is the output port */ ret = drm_of_find_panel_or_bridge(dev->of_node, 2, 0, &tc->panel, NULL); - if (ret) + if (ret && ret != -ENODEV) return ret; /* Shut down GPIO is optional */ -- 2.11.0 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org <mailto:dri-devel@lists.freedesktop.org> https://lists.freedesktop.org/mailman/listinfo/dri-devel <https://lists.freedesktop.org/mailman/listinfo/dri-devel>
dri-devel@lists.freedesktop.org
-
Andrey Gusakov -
Archit Taneja -
Lucas Stach