For PM8941 we don't have a defined field to store the reset reason.
Support wrapping pwrkey and resin, but without writing the reset
reason.
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
drivers/power/reset/qcom-pon.c | 22 +++++++++++++++-------
1 file changed, 15 insertions(+), 7 deletions(-)
diff --git a/drivers/power/reset/qcom-pon.c b/drivers/power/reset/qcom-pon.c
index ebdcfb28c4a0..1344b361a475 100644
--- a/drivers/power/reset/qcom-pon.c
+++ b/drivers/power/reset/qcom-pon.c
@@ -17,6 +17,8 @@
#define GEN1_REASON_SHIFT 2
#define GEN2_REASON_SHIFT 1
+#define NO_REASON_SHIFT 0
+
struct pm8916_pon {
struct device *dev;
struct regmap *regmap;
@@ -45,6 +47,7 @@ static int pm8916_reboot_mode_write(struct reboot_mode_driver *reboot,
static int pm8916_pon_probe(struct platform_device *pdev)
{
struct pm8916_pon *pon;
+ long reason_shift;
int error;
pon = devm_kzalloc(&pdev->dev, sizeof(*pon), GFP_KERNEL);
@@ -64,13 +67,17 @@ static int pm8916_pon_probe(struct platform_device *pdev)
if (error)
return error;
- pon->reboot_mode.dev = &pdev->dev;
- pon->reason_shift = (long)of_device_get_match_data(&pdev->dev);
- pon->reboot_mode.write = pm8916_reboot_mode_write;
- error = devm_reboot_mode_register(&pdev->dev, &pon->reboot_mode);
- if (error) {
- dev_err(&pdev->dev, "can't register reboot mode\n");
- return error;
+ reason_shift = (long)of_device_get_match_data(&pdev->dev);
+
+ if (reason_shift != NO_REASON_SHIFT) {
+ pon->reboot_mode.dev = &pdev->dev;
+ pon->reason_shift = reason_shift;
+ pon->reboot_mode.write = pm8916_reboot_mode_write;
+ error = devm_reboot_mode_register(&pdev->dev, &pon->reboot_mode);
+ if (error) {
+ dev_err(&pdev->dev, "can't register reboot mode\n");
+ return error;
+ }
}
platform_set_drvdata(pdev, pon);
@@ -80,6 +87,7 @@ static int pm8916_pon_probe(struct platform_device *pdev)
static const struct of_device_id pm8916_pon_id_table[] = {
{ .compatible = "qcom,pm8916-pon", .data = (void *)GEN1_REASON_SHIFT },
+ { .compatible = "qcom,pm8941-pon", .data = (void *)NO_REASON_SHIFT },
{ .compatible = "qcom,pms405-pon", .data = (void *)GEN1_REASON_SHIFT },
{ .compatible = "qcom,pm8998-pon", .data = (void *)GEN2_REASON_SHIFT },
{ .compatible = "qcom,pmk8350-pon", .data = (void *)GEN2_REASON_SHIFT },
--
2.39.2
