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authorShawn Guo <shawn.guo@linaro.org>2021-10-16 21:27:59 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2021-10-16 21:31:07 -0700
commit9e5afc84ff94815ad10853420dcecdf33e9226f8 (patch)
treefc8ae10a577356975fb55ea34e15cc90dcbf83ce /drivers/input
parentd46b3f5bc0fc265b7ef013e76d7d43f85e4b1e7c (diff)
downloadlinux-9e5afc84ff94815ad10853420dcecdf33e9226f8.tar.bz2
Input: pm8941-pwrkey - respect reboot_mode for warm reset
On some devices, e.g. Sony Xperia M4 Aqua, warm reset is used to reboot device into bootloader and recovery mode. Instead of always doing hard reset, add a check on reboot_mode for possible warm reset. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Tested-by: Luca Weiss <luca@z3ntu.xyz> Link: https://lore.kernel.org/r/20210714095850.27185-3-shawn.guo@linaro.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/misc/pm8941-pwrkey.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/input/misc/pm8941-pwrkey.c b/drivers/input/misc/pm8941-pwrkey.c
index 33609603245d..89af52498c96 100644
--- a/drivers/input/misc/pm8941-pwrkey.c
+++ b/drivers/input/misc/pm8941-pwrkey.c
@@ -29,6 +29,7 @@
#define PON_PS_HOLD_RST_CTL2 0x5b
#define PON_PS_HOLD_ENABLE BIT(7)
#define PON_PS_HOLD_TYPE_MASK 0x0f
+#define PON_PS_HOLD_TYPE_WARM_RESET 1
#define PON_PS_HOLD_TYPE_SHUTDOWN 4
#define PON_PS_HOLD_TYPE_HARD_RESET 7
@@ -99,7 +100,10 @@ static int pm8941_reboot_notify(struct notifier_block *nb,
break;
case SYS_RESTART:
default:
- reset_type = PON_PS_HOLD_TYPE_HARD_RESET;
+ if (reboot_mode == REBOOT_WARM)
+ reset_type = PON_PS_HOLD_TYPE_WARM_RESET;
+ else
+ reset_type = PON_PS_HOLD_TYPE_HARD_RESET;
break;
}