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authorAbel Vesa <abel.vesa@nxp.com>2019-04-08 21:38:31 +0300
committerLinus Walleij <linus.walleij@linaro.org>2019-04-11 16:41:43 +0300
commit855811eaeb83a380e30badba7226b02772922de9 (patch)
tree9b2804d0f5fbd94e9fb3231eb36fc2b10d244724 /drivers/pinctrl
parent21989587f6d0c900195ac818cc55b9a20f960904 (diff)
downloadlinux-855811eaeb83a380e30badba7226b02772922de9.tar.xz
pinctrl: imx8mq: Add suspend/resume ops
To support pinctl hog restore after LPSR resume back, add the generic suspend/resume in pinctrl-imx along with the generic pm ops to be used by platform specific drivers. Then make use of the newly added ops in i.MX8MQ platform specific driver. Signed-off-by: Robin Gong <yibin.gong@nxp.com> Signed-off-by: Abel Vesa <abel.vesa@nxp.com> Acked-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/freescale/pinctrl-imx.c19
-rw-r--r--drivers/pinctrl/freescale/pinctrl-imx.h1
-rw-r--r--drivers/pinctrl/freescale/pinctrl-imx8mq.c1
3 files changed, 21 insertions, 0 deletions
diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c b/drivers/pinctrl/freescale/pinctrl-imx.c
index 9635a2e93c72..83ff9532bae6 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx.c
@@ -885,3 +885,22 @@ free:
return ret;
}
+
+static int __maybe_unused imx_pinctrl_suspend(struct device *dev)
+{
+ struct imx_pinctrl *ipctl = dev_get_drvdata(dev);
+
+ return pinctrl_force_sleep(ipctl->pctl);
+}
+
+static int __maybe_unused imx_pinctrl_resume(struct device *dev)
+{
+ struct imx_pinctrl *ipctl = dev_get_drvdata(dev);
+
+ return pinctrl_force_default(ipctl->pctl);
+}
+
+const struct dev_pm_ops imx_pinctrl_pm_ops = {
+ SET_LATE_SYSTEM_SLEEP_PM_OPS(imx_pinctrl_suspend,
+ imx_pinctrl_resume)
+};
diff --git a/drivers/pinctrl/freescale/pinctrl-imx.h b/drivers/pinctrl/freescale/pinctrl-imx.h
index 98a4889af4ef..333d32b947b1 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx.h
+++ b/drivers/pinctrl/freescale/pinctrl-imx.h
@@ -17,6 +17,7 @@
struct platform_device;
extern struct pinmux_ops imx_pmx_ops;
+extern const struct dev_pm_ops imx_pinctrl_pm_ops;
/**
* struct imx_pin_mmio - MMIO pin configurations
diff --git a/drivers/pinctrl/freescale/pinctrl-imx8mq.c b/drivers/pinctrl/freescale/pinctrl-imx8mq.c
index 8d39af541d5f..50aa1c00c4b2 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx8mq.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx8mq.c
@@ -339,6 +339,7 @@ static struct platform_driver imx8mq_pinctrl_driver = {
.driver = {
.name = "imx8mq-pinctrl",
.of_match_table = of_match_ptr(imx8mq_pinctrl_of_match),
+ .pm = &imx_pinctrl_pm_ops,
.suppress_bind_attrs = true,
},
.probe = imx8mq_pinctrl_probe,