This is a note to let you know that I've just added the patch titled
clk: ti: fix dual-registration of uart4_ick
to the 3.14-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:
clk-ti-fix-dual-registration-of-uart4_ick.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 19e79687de22f23bcfb5e79cce3daba20af228d1 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx>
Date: Tue, 29 Sep 2015 15:01:08 +0100
Subject: clk: ti: fix dual-registration of uart4_ick
From: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx>
commit 19e79687de22f23bcfb5e79cce3daba20af228d1 upstream.
On the OMAP AM3517 platform the uart4_ick gets registered
twice, causing any power management to /dev/ttyO3 to fail
when trying to wake the device up.
This solves the following oops:
[] Unhandled fault: external abort on non-linefetch (0x1028) at 0xfa09e008
[] PC is at serial_omap_pm+0x48/0x15c
[] LR is at _raw_spin_unlock_irqrestore+0x30/0x5c
Fixes: aafd900cab87 ("CLK: TI: add omap3 clock init file")
Cc: mturquette@xxxxxxxxxxxx
Cc: sboyd@xxxxxxxxxxxxxx
Cc: linux-clk@xxxxxxxxxxxxxxx
Cc: linux-omap@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx>
Signed-off-by: Tero Kristo <t-kristo@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/clk/ti/clk-3xxx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/clk/ti/clk-3xxx.c
+++ b/drivers/clk/ti/clk-3xxx.c
@@ -174,7 +174,6 @@ static struct ti_dt_clk omap3xxx_clks[]
DT_CLK(NULL, "gpio2_ick", "gpio2_ick"),
DT_CLK(NULL, "wdt3_ick", "wdt3_ick"),
DT_CLK(NULL, "uart3_ick", "uart3_ick"),
- DT_CLK(NULL, "uart4_ick", "uart4_ick"),
DT_CLK(NULL, "gpt9_ick", "gpt9_ick"),
DT_CLK(NULL, "gpt8_ick", "gpt8_ick"),
DT_CLK(NULL, "gpt7_ick", "gpt7_ick"),
@@ -317,6 +316,7 @@ static struct ti_dt_clk am35xx_clks[] =
static struct ti_dt_clk omap36xx_clks[] = {
DT_CLK(NULL, "omap_192m_alwon_fck", "omap_192m_alwon_fck"),
DT_CLK(NULL, "uart4_fck", "uart4_fck"),
+ DT_CLK(NULL, "uart4_ick", "uart4_ick"),
{ .node_name = NULL },
};
Patches currently in stable-queue which might be from ben.dooks@xxxxxxxxxxxxxxx are
queue-3.14/clk-ti-fix-dual-registration-of-uart4_ick.patch
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