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| author | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2023-06-09 04:25:51 +0200 |
|---|---|---|
| committer | Sebastian Reichel <sebastian.reichel@collabora.com> | 2023-06-09 21:18:17 +0200 |
| commit | 4dea2fd6e83c4aaa47c68987d4c68d39b5ae9654 (patch) | |
| tree | e37db110c2ad01b2ead899aa2bd3039d656a1888 /drivers/power | |
| parent | dt-bindings: power: reset: qcom-pon: define pm8941-pon (diff) | |
| download | linux-4dea2fd6e83c4aaa47c68987d4c68d39b5ae9654.tar.xz linux-4dea2fd6e83c4aaa47c68987d4c68d39b5ae9654.zip | |
power: reset: qcom-pon: add support for pm8941-pon
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@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/reset/qcom-pon.c | 22 |
1 files 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 }, |