android/android_kernel_xiaomi_sm8450
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power: reset: Import xiaomi changes from mayfly-s-oss

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Arian 2023-03-07 18:11:23 +01:00 committed by Jens Reidel
parent ca9a3a1fb8
commit c1ecca0fbb
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GPG Key ID: 23C1E5F512C12303
2 changed files with 74 additions and 7 deletions
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8
drivers/power/reset/qcom-dload-mode.c
View File

@ -38,7 +38,7 @@ struct qcom_dload {
static bool enable_dump =
IS_ENABLED(CONFIG_POWER_RESET_QCOM_DOWNLOAD_MODE_DEFAULT);
static enum qcom_download_mode current_download_mode = QCOM_DOWNLOAD_NODUMP;
static enum qcom_download_mode dump_mode = QCOM_DOWNLOAD_FULLDUMP;
static enum qcom_download_mode dump_mode = QCOM_DOWNLOAD_BOTHDUMP;
static int set_download_mode(enum qcom_download_mode mode)
{
@ -264,10 +264,8 @@ static int qcom_dload_reboot(struct notifier_block *this, unsigned long event,
set_download_mode(QCOM_DOWNLOAD_NODUMP);
if (cmd) {
if (!strcmp(cmd, "edl"))
set_download_mode(QCOM_DOWNLOAD_EDL);
else if (!strcmp(cmd, "qcom_dload"))
msm_enable_dump_mode(true);
if (!strcmp(cmd, "qcom_dload"))
msm_enable_dump_mode(true);
}
if (current_download_mode != QCOM_DOWNLOAD_NODUMP)

73
drivers/power/reset/qcom-reboot-reason.c
View File

@ -17,6 +17,7 @@
struct qcom_reboot_reason {
struct device *dev;
struct notifier_block reboot_nb;
struct notifier_block panic_nb;
struct nvmem_cell *nvmem_cell;
};
@ -32,9 +33,52 @@ static struct poweroff_reason reasons[] = {
{ "dm-verity device corrupted", 0x04 },
{ "dm-verity enforcing", 0x05 },
{ "keys clear", 0x06 },
{ "ffu", 0x41 },
{ "panic", 0x21 },
{ NULL, 0x20 },
{}
};
#define RESTART_REASON_PANIC 7
#define RESTART_REASON_NORMAL 8
static struct qcom_reboot_reason *ffu_reboot = NULL;
int ufs_ffu_reboot_reason_reboot(void *ptr)
{
char *cmd = ptr;
struct qcom_reboot_reason *reboot;
struct poweroff_reason *reason;
if(!ffu_reboot)
return NOTIFY_BAD;
reboot = ffu_reboot;
if (!cmd) {
nvmem_cell_write(reboot->nvmem_cell,
&reasons[RESTART_REASON_NORMAL].pon_reason,
sizeof(reasons[RESTART_REASON_NORMAL].pon_reason));
return NOTIFY_OK;
}
for (reason = reasons; reason->cmd; reason++) {
if (!strcmp(cmd, reason->cmd)) {
nvmem_cell_write(reboot->nvmem_cell,
&reason->pon_reason,
sizeof(reason->pon_reason));
return NOTIFY_OK;
}
}
nvmem_cell_write(reboot->nvmem_cell,
&reason->pon_reason,
sizeof(reason->pon_reason));
return NOTIFY_OK;
}
EXPORT_SYMBOL(ufs_ffu_reboot_reason_reboot);
static int qcom_reboot_reason_reboot(struct notifier_block *this,
unsigned long event, void *ptr)
{
@ -43,20 +87,38 @@ static int qcom_reboot_reason_reboot(struct notifier_block *this,
struct qcom_reboot_reason, reboot_nb);
struct poweroff_reason *reason;
if (!cmd)
if (!cmd) {
nvmem_cell_write(reboot->nvmem_cell,
&reasons[RESTART_REASON_NORMAL].pon_reason,
sizeof(reasons[RESTART_REASON_NORMAL].pon_reason));
return NOTIFY_OK;
}
for (reason = reasons; reason->cmd; reason++) {
if (!strcmp(cmd, reason->cmd)) {
nvmem_cell_write(reboot->nvmem_cell,
&reason->pon_reason,
sizeof(reason->pon_reason));
break;
return NOTIFY_OK;
}
}
nvmem_cell_write(reboot->nvmem_cell,
&reason->pon_reason,
sizeof(reason->pon_reason));
return NOTIFY_OK;
}
static int panic_prep_restart(struct notifier_block *this,
unsigned long event, void *ptr)
{
struct qcom_reboot_reason *reboot = container_of(this,
struct qcom_reboot_reason, panic_nb);
nvmem_cell_write(reboot->nvmem_cell,
&reasons[RESTART_REASON_PANIC].pon_reason,
sizeof(reasons[RESTART_REASON_PANIC].pon_reason));
return NOTIFY_DONE;
}
static int qcom_reboot_reason_probe(struct platform_device *pdev)
{
struct qcom_reboot_reason *reboot;
@ -78,6 +140,12 @@ static int qcom_reboot_reason_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, reboot);
reboot->panic_nb.notifier_call = panic_prep_restart;
reboot->panic_nb.priority = INT_MAX;
atomic_notifier_chain_register(&panic_notifier_list, &reboot->panic_nb);
ffu_reboot = reboot;
return 0;
}
@ -85,6 +153,7 @@ static int qcom_reboot_reason_remove(struct platform_device *pdev)
{
struct qcom_reboot_reason *reboot = platform_get_drvdata(pdev);
atomic_notifier_chain_unregister(&panic_notifier_list, &reboot->panic_nb);
unregister_reboot_notifier(&reboot->reboot_nb);
return 0;