93 lines
2.8 KiB
Diff
93 lines
2.8 KiB
Diff
From b53d48cb8cb076824690d3d4fb69822cf5f38ef2 Mon Sep 17 00:00:00 2001
|
|
From: memeka <mihailescu2m@gmail.com>
|
|
Date: Fri, 18 Jan 2019 14:36:21 +1030
|
|
Subject: [PATCH 035/109] ODROID-XU4: regulator: s2mps11: add ethernet power
|
|
reset in shutdown function
|
|
|
|
Ethernet device cannot be detected on warm boot sometimes. This patch is
|
|
to add the power reset routines for ethernet device using PMIC. Then
|
|
ethernet device can be reset hardware-wise.
|
|
|
|
Change-Id: Iffbe2966da7e4679f63b91ab79241167391792df
|
|
Signed-off-by: Brian Kim <brian.kim@hardkernel.com>
|
|
Signed-off-by: Marian Mihailescu <mihailescu2m@gmail.com>
|
|
---
|
|
drivers/regulator/s2mps11.c | 54 +++++++++++++++++++++++++++++++++++++
|
|
1 file changed, 54 insertions(+)
|
|
|
|
diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c
|
|
index f1ade60ee8d3..f4c62c1c4e82 100644
|
|
--- a/drivers/regulator/s2mps11.c
|
|
+++ b/drivers/regulator/s2mps11.c
|
|
@@ -1117,6 +1117,57 @@ static const struct regulator_desc s2mpu02_regulators[] = {
|
|
regulator_desc_s2mpu02_buck7(7),
|
|
};
|
|
|
|
+static int s2mps11_pmic_ethonoff(struct platform_device *pdev, bool onoff)
|
|
+{
|
|
+ struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
|
|
+ unsigned int reg_val = 0;
|
|
+ int ret = 0;
|
|
+
|
|
+ ret = regmap_read(iodev->regmap_pmic, S2MPS11_REG_L15CTRL, ®_val);
|
|
+ if (ret) {
|
|
+ dev_err(&pdev->dev, "failed to read S2MPS11_REG_L15CTRL value\n");
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
+ ret = regmap_read(iodev->regmap_pmic, S2MPS11_REG_L17CTRL, ®_val);
|
|
+ if (ret) {
|
|
+ dev_err(&pdev->dev, "failed to read S2MPS11_REG_L17CTRL value\n");
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
+ if (onoff) {
|
|
+ /* ETH VDD0 ON */
|
|
+ ret = regmap_update_bits(iodev->regmap_pmic, S2MPS11_REG_L15CTRL, 0xFF, 0x72);
|
|
+ if (ret) {
|
|
+ dev_err(&pdev->dev, "cannot update S2MPS11 LDO CTRL15 register\n");
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
+ /* ETH VDD1 ON */
|
|
+ ret = regmap_update_bits(iodev->regmap_pmic, S2MPS11_REG_L17CTRL, 0xFF, 0x72);
|
|
+ if (ret) {
|
|
+ dev_err(&pdev->dev, "cannot update S2MPS11 LDO CTRL17 register\n");
|
|
+ return ret;
|
|
+ }
|
|
+ } else {
|
|
+ /* ETH VDD0 OFF */
|
|
+ ret = regmap_update_bits(iodev->regmap_pmic, S2MPS11_REG_L15CTRL, 0x3F, 0x00);
|
|
+ if (ret) {
|
|
+ dev_err(&pdev->dev, "cannot update S2MPS11 LDO CTRL15 register\n");
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
+ /* ETH VDD1 OFF */
|
|
+ ret = regmap_update_bits(iodev->regmap_pmic, S2MPS11_REG_L17CTRL, 0x3F, 0x00);
|
|
+ if (ret) {
|
|
+ dev_err(&pdev->dev, "cannot update S2MPS11 LDO CTRL17 register\n");
|
|
+ return ret;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
static int s2mps11_pmic_probe(struct platform_device *pdev)
|
|
{
|
|
struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
|
|
@@ -1266,6 +1317,9 @@ static void s2mps11_pmic_shutdown(struct platform_device *pdev)
|
|
"could not write S2MPS11_REG_CTRL1 value\n");
|
|
}
|
|
}
|
|
+ s2mps11_pmic_ethonoff(pdev, false);
|
|
+ mdelay(10);
|
|
+ s2mps11_pmic_ethonoff(pdev, true);
|
|
}
|
|
|
|
static const struct platform_device_id s2mps11_pmic_id[] = {
|
|
--
|
|
2.25.1
|
|
|