From 9d39f05490115bf145e5ea03c0b7ec9d3d015b01 Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Fri, 12 Jun 2015 20:06:23 -0300 Subject: [PATCH] [media] v4l: omap3isp: Fix sub-device power management code Commit 813f5c0ac5cc ("media: Change media device link_notify behaviour") modified the media controller link setup notification API and updated the OMAP3 ISP driver accordingly. As a side effect it introduced a bug by turning power on after setting the link instead of before. This results in sub-devices not being powered down in some cases when they should be. Fix it. Fixes: 813f5c0ac5cc [media] media: Change media device link_notify behaviour Signed-off-by: Sakari Ailus Cc: stable@vger.kernel.org # since v3.10 Signed-off-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/omap3isp/isp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c index d1334bb1fe37..12be830d704f 100644 --- a/drivers/media/platform/omap3isp/isp.c +++ b/drivers/media/platform/omap3isp/isp.c @@ -829,14 +829,14 @@ static int isp_pipeline_link_notify(struct media_link *link, u32 flags, int ret; if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH && - !(link->flags & MEDIA_LNK_FL_ENABLED)) { + !(flags & MEDIA_LNK_FL_ENABLED)) { /* Powering off entities is assumed to never fail. */ isp_pipeline_pm_power(source, -sink_use); isp_pipeline_pm_power(sink, -source_use); return 0; } - if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH && + if (notification == MEDIA_DEV_NOTIFY_PRE_LINK_CH && (flags & MEDIA_LNK_FL_ENABLED)) { ret = isp_pipeline_pm_power(source, sink_use);