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reset: qcom-pon: Add support for gen2 pon
Add support for gen2 pon register so "reboot bootloader" can work on pixel3 and db845. Cc: Andy Gross <agross@kernel.org> Cc: David Brown <david.brown@linaro.org> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Amit Pundir <amit.pundir@linaro.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Sebastian Reichel <sre@kernel.org> Cc: linux-arm-msm@vger.kernel.org Cc: devicetree@vger.kernel.org Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: John Stultz <john.stultz@linaro.org> v2: * Split out dts changes into separate path * Minor cleanups and remove unused variables Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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9faf929608
commit
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1 changed files with 9 additions and 3 deletions
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@ -14,11 +14,15 @@
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#define PON_SOFT_RB_SPARE 0x8f
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#define GEN1_REASON_SHIFT 2
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#define GEN2_REASON_SHIFT 1
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struct pm8916_pon {
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struct device *dev;
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struct regmap *regmap;
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u32 baseaddr;
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struct reboot_mode_driver reboot_mode;
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long reason_shift;
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};
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static int pm8916_reboot_mode_write(struct reboot_mode_driver *reboot,
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@ -30,7 +34,7 @@ static int pm8916_reboot_mode_write(struct reboot_mode_driver *reboot,
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ret = regmap_update_bits(pon->regmap,
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pon->baseaddr + PON_SOFT_RB_SPARE,
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0xfc, magic << 2);
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0xfc, magic << pon->reason_shift);
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if (ret < 0)
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dev_err(pon->dev, "update reboot mode bits failed\n");
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@ -60,6 +64,7 @@ static int pm8916_pon_probe(struct platform_device *pdev)
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return error;
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pon->reboot_mode.dev = &pdev->dev;
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pon->reason_shift = (long)of_device_get_match_data(&pdev->dev);
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pon->reboot_mode.write = pm8916_reboot_mode_write;
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error = devm_reboot_mode_register(&pdev->dev, &pon->reboot_mode);
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if (error) {
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@ -73,8 +78,9 @@ static int pm8916_pon_probe(struct platform_device *pdev)
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}
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static const struct of_device_id pm8916_pon_id_table[] = {
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{ .compatible = "qcom,pm8916-pon" },
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{ .compatible = "qcom,pms405-pon" },
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{ .compatible = "qcom,pm8916-pon", .data = (void *)GEN1_REASON_SHIFT },
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{ .compatible = "qcom,pms405-pon", .data = (void *)GEN1_REASON_SHIFT },
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{ .compatible = "qcom,pm8998-pon", .data = (void *)GEN2_REASON_SHIFT },
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{ }
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};
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MODULE_DEVICE_TABLE(of, pm8916_pon_id_table);
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