power: reset: power key detection only when power off
1. In power off flow:
- detect power key is really released
- execute acpm_prepare_reboot
- AOSP send SMC to TF-A to do real power off action.
2. In cold reboot flow:
- skip power key detection
- execute acpm_prepare_reboot
- AOSP send SMC to TF-A to do real cold reboot action
Bug: 234066226
Signed-off-by: Jone Chou <jonechou@google.com>
Change-Id: Id9ace2c2b8a9841f5f5ac978b8650cad793c0d7a
(cherry picked from commit 4cc727a5900bc7473b8c0f3b075c6ae63d91e0f9)
diff --git a/exynos-gs201-reboot.c b/exynos-gs201-reboot.c
index 0e6b2b9..4917058 100644
--- a/exynos-gs201-reboot.c
+++ b/exynos-gs201-reboot.c
@@ -117,6 +117,27 @@
{
exynos_reboot_parse(cmd);
+ if (mode != SYS_POWER_OFF)
+ return NOTIFY_DONE;
+
+ while (1) {
+ /* wait for power button release */
+ if (!pmic_read_pwrkey_status()) {
+#if IS_ENABLED(CONFIG_GS_ACPM)
+ acpm_prepare_reboot();
+#endif
+ pr_info("ready to do power off.\n");
+ break;
+ } else {
+ /*
+ * if power button is not released,
+ * wait and check TA again
+ */
+ pr_info("PWR Key is not released.\n");
+ }
+ mdelay(1000);
+ }
+
return NOTIFY_DONE;
}
@@ -141,27 +162,6 @@
.priority = 130,
};
-static void exynos_power_off(struct platform_device *pdev)
-{
- while (1) {
- /* wait for power button release */
- if (!pmic_read_pwrkey_status()) {
-#if IS_ENABLED(CONFIG_GS_ACPM)
- acpm_prepare_reboot();
-#endif
- pr_info("ready to do power off.\n");
- break;
- } else {
- /*
- * if power button is not released,
- * wait and check TA again
- */
- pr_info("PWR Key is not released.\n");
- }
- mdelay(1000);
- }
-}
-
static int exynos_reboot_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -223,7 +223,6 @@
static struct platform_driver exynos_reboot_driver = {
.probe = exynos_reboot_probe,
- .shutdown = exynos_power_off,
.driver = {
.name = "exynos-reboot",
.of_match_table = exynos_reboot_of_match,