From: Robin Gong <yibin.g...@nxp.com>
To support pinctl hog restore after LPSR resume back,
add suspend/resume in pinctrl driver.
Signed-off-by: Robin Gong <yibin.g...@nxp.com>
Signed-off-by: Abel Vesa <abel.v...@nxp.com>
---
Changes since v1:
* fixed Robin's email
drivers/pinctrl/freescale/pinctrl-imx.c | 20 ++++++++++++++++++++
drivers/pinctrl/freescale/pinctrl-imx.h | 3 +++
2 files changed, 23 insertions(+)
diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c
b/drivers/pinctrl/freescale/pinctrl-imx.c
index 188001b..93c0253 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx.c
@@ -887,3 +887,23 @@ int imx_pinctrl_probe(struct platform_device *pdev,
return ret;
}
+
+int imx_pinctrl_suspend(struct device *dev)
+{
+ struct imx_pinctrl *ipctl = dev_get_drvdata(dev);
+
+ if (!ipctl)
+ return -EINVAL;
+
+ return pinctrl_force_sleep(ipctl->pctl);
+}
+
+int imx_pinctrl_resume(struct device *dev)
+{
+ struct imx_pinctrl *ipctl = dev_get_drvdata(dev);
+
+ if (!ipctl)
+ return -EINVAL;
+
+ return pinctrl_force_default(ipctl->pctl);
+}
diff --git a/drivers/pinctrl/freescale/pinctrl-imx.h
b/drivers/pinctrl/freescale/pinctrl-imx.h
index 98a4889..795669c 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx.h
+++ b/drivers/pinctrl/freescale/pinctrl-imx.h
@@ -136,6 +136,9 @@ struct imx_pinctrl {
int imx_pinctrl_probe(struct platform_device *pdev,
const struct imx_pinctrl_soc_info *info);
+int imx_pinctrl_suspend(struct device *dev);
+int imx_pinctrl_resume(struct device *dev);
+
#ifdef CONFIG_PINCTRL_IMX_SCU
#define BM_PAD_CTL_GP_ENABLE BIT(30)
#define BM_PAD_CTL_IFMUX_ENABLE BIT(31)
--
2.7.4
