This is a note to let you know that I've just added the patch titled
drivers: sh: Restore legacy clock domain on SuperH platforms
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drivers-sh-restore-legacy-clock-domain-on-superh-platforms.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 0378ba4899d5fbd8494ed6580cbc81d7b44dbac6 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Date: Wed, 24 Feb 2016 09:43:23 +0100
Subject: drivers: sh: Restore legacy clock domain on SuperH platforms
From: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
commit 0378ba4899d5fbd8494ed6580cbc81d7b44dbac6 upstream.
CONFIG_ARCH_SHMOBILE is not only enabled for Renesas ARM platforms
(which are DT based and multi-platform), but also on a select set of
Renesas SuperH platforms (SH7722/SH7723/SH7724/SH7343/SH7366). Hence
since commit 0ba58de231066e47 ("drivers: sh: Get rid of
CONFIG_ARCH_SHMOBILE_MULTI"), the legacy clock domain is no longer
installed on these SuperH platforms, and module clocks may not be
enabled when needed, leading to driver failures.
To fix this, add an additional check for CONFIG_OF.
Fixes: 0ba58de231066e47 ("drivers: sh: Get rid of CONFIG_ARCH_SHMOBILE_MULTI").
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Signed-off-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/sh/pm_runtime.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/sh/pm_runtime.c
+++ b/drivers/sh/pm_runtime.c
@@ -34,7 +34,7 @@ static struct pm_clk_notifier_block plat
static int __init sh_pm_runtime_init(void)
{
- if (IS_ENABLED(CONFIG_ARCH_SHMOBILE)) {
+ if (IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_ARCH_SHMOBILE)) {
if (!of_find_compatible_node(NULL, NULL,
"renesas,cpg-mstp-clocks"))
return 0;
Patches currently in stable-queue which might be from geert+renesas@xxxxxxxxx are
queue-4.4/drivers-sh-restore-legacy-clock-domain-on-superh-platforms.patch
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