This is a note to let you know that I've just added the patch titled
x86/platform/intel-mid: Handle Intel Edison reboot correctly
to the 4.15-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:
x86-platform-intel-mid-handle-intel-edison-reboot-correctly.patch
and it can be found in the queue-4.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 028091f82eefd5e84f81cef81a7673016ecbe78b Mon Sep 17 00:00:00 2001
From: Sebastian Panceac <sebastian@xxxxxxxx>
Date: Wed, 28 Feb 2018 11:40:49 +0200
Subject: x86/platform/intel-mid: Handle Intel Edison reboot correctly
From: Sebastian Panceac <sebastian@xxxxxxxx>
commit 028091f82eefd5e84f81cef81a7673016ecbe78b upstream.
When the Intel Edison module is powered with 3.3V, the reboot command makes
the module stuck. If the module is powered at a greater voltage, like 4.4V
(as the Edison Mini Breakout board does), reboot works OK.
The official Intel Edison BSP sends the IPCMSG_COLD_RESET message to the
SCU by default. The IPCMSG_COLD_BOOT which is used by the upstream kernel
is only sent when explicitely selected on the kernel command line.
Use IPCMSG_COLD_RESET unconditionally which makes reboot work independent
of the power supply voltage.
[ tglx: Massaged changelog ]
Fixes: bda7b072de99 ("x86/platform/intel-mid: Implement power off sequence")
Signed-off-by: Sebastian Panceac <sebastian@xxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Acked-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Link: https://lkml.kernel.org/r/1519810849-15131-1-git-send-email-sebastian@xxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/x86/platform/intel-mid/intel-mid.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -79,7 +79,7 @@ static void intel_mid_power_off(void)
static void intel_mid_reboot(void)
{
- intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
+ intel_scu_ipc_simple_command(IPCMSG_COLD_RESET, 0);
}
static unsigned long __init intel_mid_calibrate_tsc(void)
Patches currently in stable-queue which might be from sebastian@xxxxxxxx are
queue-4.15/x86-platform-intel-mid-handle-intel-edison-reboot-correctly.patch