Hi Shawn,
On Dienstag, 29. Juni 2021 05:05:09 CEST Shawn Guo wrote:
quoted hunk ↗ jump to hunk
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 <redacted>
---
drivers/input/misc/pm8941-pwrkey.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/input/misc/pm8941-pwrkey.c
b/drivers/input/misc/pm8941-pwrkey.c index cf8104454e74..9b14d6eb1918
100644
--- a/drivers/input/misc/pm8941-pwrkey.c
+++ b/drivers/input/misc/pm8941-pwrkey.c
@@ -27,6 +27,7 @@
#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
@@ -93,7 +94,10 @@ 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)
This doesn't compile with CONFIG_INPUT_PM8941_PWRKEY=m
ERROR: modpost: "reboot_mode" [drivers/input/misc/pm8941-pwrkey.ko] undefined!
Also just to clarify, this is supposed to trigger when rebooting with
LINUX_REBOOT_CMD_RESTART2 and adding an argument that way, right?
Regards
Luca
quoted hunk ↗ jump to hunk
+ reset_type = PON_PS_HOLD_TYPE_WARM_RESET;
+ else
+ reset_type = PON_PS_HOLD_TYPE_HARD_RESET;
break;
}