From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Jonathan Liu <net147@gmail.com>,
Thierry Reding <treding@nvidia.com>
Subject: [PATCH 3.18 09/12] drm/panel: simple: Add missing panel_simple_unprepare() calls
Date: Mon, 4 Dec 2017 16:59:23 +0100 [thread overview]
Message-ID: <20171204155916.852905095@linuxfoundation.org> (raw)
In-Reply-To: <20171204155916.489136969@linuxfoundation.org>
3.18-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jonathan Liu <net147@gmail.com>
commit f3621a8eb59a913612c8e6e37d81f16b649f8b6c upstream.
During panel removal or system shutdown panel_simple_disable() is called
which disables the panel backlight but the panel is still powered due to
missing calls to panel_simple_unprepare().
Fixes: d02fd93e2cd8 ("drm/panel: simple - Disable panel on shutdown")
Signed-off-by: Jonathan Liu <net147@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170807115545.27747-1-net147@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/gpu/drm/panel/panel-simple.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -312,6 +312,7 @@ static int panel_simple_remove(struct de
drm_panel_remove(&panel->base);
panel_simple_disable(&panel->base);
+ panel_simple_unprepare(&panel->base);
if (panel->ddc)
put_device(&panel->ddc->dev);
@@ -327,6 +328,7 @@ static void panel_simple_shutdown(struct
struct panel_simple *panel = dev_get_drvdata(dev);
panel_simple_disable(&panel->base);
+ panel_simple_unprepare(&panel->base);
}
static const struct drm_display_mode auo_b101aw03_mode = {
next prev parent reply other threads:[~2017-12-04 15:59 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-04 15:59 [PATCH 3.18 00/12] 3.18.86-stable review Greg Kroah-Hartman
2017-12-04 15:59 ` [PATCH 3.18 01/12] netlink: add a start callback for starting a netlink dump Greg Kroah-Hartman
2017-12-04 15:59 ` [PATCH 3.18 02/12] ipsec: Fix aborted xfrm policy dump crash Greg Kroah-Hartman
2017-12-04 15:59 ` [PATCH 3.18 03/12] mm, thp: Do not make page table dirty unconditionally in touch_p[mu]d() Greg Kroah-Hartman
2017-12-04 15:59 ` [PATCH 3.18 04/12] mm/madvise.c: fix madvise() infinite loop under special circumstances Greg Kroah-Hartman
2017-12-04 15:59 ` [PATCH 3.18 05/12] btrfs: clear space cache inode generation always Greg Kroah-Hartman
2017-12-04 15:59 ` [PATCH 3.18 08/12] eeprom: at24: check at24_read/write arguments Greg Kroah-Hartman
2017-12-04 15:59 ` Greg Kroah-Hartman [this message]
2017-12-04 15:59 ` [PATCH 3.18 10/12] NFS: revalidate "." etc correctly on "open" Greg Kroah-Hartman
2017-12-04 20:14 ` [PATCH 3.18 00/12] 3.18.86-stable review Shuah Khan
2017-12-04 23:45 ` Guenter Roeck
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