76 lines
2.5 KiB
Diff
76 lines
2.5 KiB
Diff
From 8a552e21a0996be6e4376bb3ea8506a68ec4aa0d Mon Sep 17 00:00:00 2001
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From: Anand Moon <moon.linux@yahoo.com>
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Date: Sun, 12 Jul 2015 18:41:20 +0530
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Subject: [PATCH 034/109] ODROID-XU4: regulator: s2mps11: call shutdown
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function to poweroff
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Added .shutdown function to s2mps11 to help poweroff the board successfully.
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The device driver clears the register to turn off the PMIC.
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s2mps11-pmic: S2MPS11_REG_CTRL1 reg value 16:00000000000000000000000000010000
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Console log.
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* Unmounting temporary filesystems... [ OK ]
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* Deactivating swap... [ OK ]
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* Unmounting local filesystems... [ OK ]
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* Will now halt
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[ 209.020280] reboot: Power down
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[ 209.122039] Power down failed, please power off system manually.
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Change-Id: If6ea0dec154b00ceeaaddbac393c67dc35c26279
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Signed-off-by: Anand Moon <linux.amoon@gmail.com>
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Signed-off-by: memeka <mihailescu2m@gmail.com>
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Signed-off-by: Marian Mihailescu <mihailescu2m@gmail.com>
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---
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drivers/regulator/s2mps11.c | 26 ++++++++++++++++++++++++++
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1 file changed, 26 insertions(+)
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diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c
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index 33cf84bce05a..f1ade60ee8d3 100644
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--- a/drivers/regulator/s2mps11.c
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+++ b/drivers/regulator/s2mps11.c
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@@ -1243,6 +1243,31 @@ static int s2mps11_pmic_probe(struct platform_device *pdev)
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return ret;
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}
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+static void s2mps11_pmic_shutdown(struct platform_device *pdev)
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+{
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+ struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
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+ unsigned int reg_val, ret;
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+
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+ ret = regmap_read(iodev->regmap_pmic, S2MPS11_REG_CTRL1, ®_val);
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+ if (ret < 0) {
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+ dev_crit(&pdev->dev, "could not read S2MPS11_REG_CTRL1 value\n");
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+ } else {
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+ /*
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+ * s2mps11-pmic: S2MPS11_REG_CTRL1 reg value
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+ * is 00000000000000000000000000010000
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+ * clear the S2MPS11_REG_CTRL1 0x10 value to shutdown.
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+ */
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+ if (reg_val & BIT(4)) {
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+ ret = regmap_update_bits(iodev->regmap_pmic,
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+ S2MPS11_REG_CTRL1,
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+ BIT(4), BIT(0));
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+ if (ret)
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+ dev_crit(&pdev->dev,
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+ "could not write S2MPS11_REG_CTRL1 value\n");
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+ }
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+ }
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+}
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+
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static const struct platform_device_id s2mps11_pmic_id[] = {
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{ "s2mps11-regulator", S2MPS11X},
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{ "s2mps13-regulator", S2MPS13X},
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@@ -1258,6 +1283,7 @@ static struct platform_driver s2mps11_pmic_driver = {
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.name = "s2mps11-pmic",
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},
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.probe = s2mps11_pmic_probe,
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+ .shutdown = s2mps11_pmic_shutdown,
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.id_table = s2mps11_pmic_id,
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};
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--
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2.25.1
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