build/patch/kernel/archive/odroidxu4-5.15/0014-ODROID-XU4-regulator-s2mps11-call-shutdown-function-.patch

76 lines
2.4 KiB
Diff

From 4e8ba4c72c403485453d777d8c6585a238b514bb Mon Sep 17 00:00:00 2001
From: Anand Moon <moon.linux@yahoo.com>
Date: Sun, 12 Jul 2015 18:41:20 +0530
Subject: [PATCH 14/75] ODROID-XU4: regulator: s2mps11: call shutdown function
to poweroff
Added .shutdown function to s2mps11 to help poweroff the board successfully.
The device driver clears the register to turn off the PMIC.
s2mps11-pmic: S2MPS11_REG_CTRL1 reg value 16:00000000000000000000000000010000
Console log.
* Unmounting temporary filesystems... [ OK ]
* Deactivating swap... [ OK ]
* Unmounting local filesystems... [ OK ]
* Will now halt
[ 209.020280] reboot: Power down
[ 209.122039] Power down failed, please power off system manually.
Change-Id: If6ea0dec154b00ceeaaddbac393c67dc35c26279
Signed-off-by: Anand Moon <linux.amoon@gmail.com>
Signed-off-by: memeka <mihailescu2m@gmail.com>
Signed-off-by: Marian Mihailescu <mihailescu2m@gmail.com>
---
drivers/regulator/s2mps11.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c
index ebc67e3ddd4f..8d340f760232 100644
--- a/drivers/regulator/s2mps11.c
+++ b/drivers/regulator/s2mps11.c
@@ -1225,6 +1225,31 @@ static int s2mps11_pmic_probe(struct platform_device *pdev)
return ret;
}
+static void s2mps11_pmic_shutdown(struct platform_device *pdev)
+{
+ struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
+ unsigned int reg_val, ret;
+
+ ret = regmap_read(iodev->regmap_pmic, S2MPS11_REG_CTRL1, &reg_val);
+ if (ret < 0) {
+ dev_crit(&pdev->dev, "could not read S2MPS11_REG_CTRL1 value\n");
+ } else {
+ /*
+ * s2mps11-pmic: S2MPS11_REG_CTRL1 reg value
+ * is 00000000000000000000000000010000
+ * clear the S2MPS11_REG_CTRL1 0x10 value to shutdown.
+ */
+ if (reg_val & BIT(4)) {
+ ret = regmap_update_bits(iodev->regmap_pmic,
+ S2MPS11_REG_CTRL1,
+ BIT(4), BIT(0));
+ if (ret)
+ dev_crit(&pdev->dev,
+ "could not write S2MPS11_REG_CTRL1 value\n");
+ }
+ }
+}
+
static const struct platform_device_id s2mps11_pmic_id[] = {
{ "s2mps11-regulator", S2MPS11X},
{ "s2mps13-regulator", S2MPS13X},
@@ -1240,6 +1265,7 @@ static struct platform_driver s2mps11_pmic_driver = {
.name = "s2mps11-pmic",
},
.probe = s2mps11_pmic_probe,
+ .shutdown = s2mps11_pmic_shutdown,
.id_table = s2mps11_pmic_id,
};
--
2.25.1