diff mbox series

[02/14] pinctrl: pinctrl-single: move suspend/resume to suspend_noirq/resume_noirq

Message ID 20240102-j7200-pcie-s2r-v1-2-84e55da52400@bootlin.com
State New
Headers show
Series Add suspend to ram support for PCIe on J7200 | expand

Commit Message

Thomas Richard Jan. 15, 2024, 4:14 p.m. UTC 
The goal is to extend the active period of pinctrl.
Some devices may need active pinctrl after suspend and/or before resume.
So move suspend/resume to suspend_noirq/resume_noirq to have active
pinctrl until suspend_noirq (included), and from resume_noirq
(included).

The deprecated API has been removed to use the new one (dev_pm_ops struct).

Signed-off-by: Thomas Richard <thomas.richard@bootlin.com>
---
 drivers/pinctrl/pinctrl-single.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

Comments

Linus Walleij Jan. 31, 2024, 8:05 a.m. UTC | #1 
On Mon, Jan 15, 2024 at 5:16 PM Thomas Richard
<thomas.richard@bootlin.com> wrote:

> The goal is to extend the active period of pinctrl.
> Some devices may need active pinctrl after suspend and/or before resume.
> So move suspend/resume to suspend_noirq/resume_noirq to have active
> pinctrl until suspend_noirq (included), and from resume_noirq
> (included).
>
> The deprecated API has been removed to use the new one (dev_pm_ops struct).
>
> Signed-off-by: Thomas Richard <thomas.richard@bootlin.com>

This needs testing on OMAP and ACK from Tony before I can merge it.
Preferably Haojian should test it too, this is a pretty serious semantic
change.

Yours,
Linus Walleij
diff mbox series

Patch

diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index 19cc0db771a5..4ad0f66cf42a 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -1690,12 +1690,11 @@  static void pcs_restore_context(struct pcs_device *pcs)
 	}
 }
 
-static int pinctrl_single_suspend(struct platform_device *pdev,
-					pm_message_t state)
+static int pinctrl_single_suspend_noirq(struct device *dev)
 {
 	struct pcs_device *pcs;
 
-	pcs = platform_get_drvdata(pdev);
+	pcs = dev_get_drvdata(dev);
 	if (!pcs)
 		return -EINVAL;
 
@@ -1710,11 +1709,11 @@  static int pinctrl_single_suspend(struct platform_device *pdev,
 	return pinctrl_force_sleep(pcs->pctl);
 }
 
-static int pinctrl_single_resume(struct platform_device *pdev)
+static int pinctrl_single_resume_noirq(struct device *dev)
 {
 	struct pcs_device *pcs;
 
-	pcs = platform_get_drvdata(pdev);
+	pcs = dev_get_drvdata(dev);
 	if (!pcs)
 		return -EINVAL;
 
@@ -1723,6 +1722,11 @@  static int pinctrl_single_resume(struct platform_device *pdev)
 
 	return pinctrl_force_default(pcs->pctl);
 }
+
+static const struct dev_pm_ops pinctrl_single_pm_ops = {
+	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(pinctrl_single_suspend_noirq,
+				      pinctrl_single_resume_noirq)
+};
 #endif
 
 /**
@@ -1986,11 +1990,8 @@  static struct platform_driver pcs_driver = {
 	.driver = {
 		.name		= DRIVER_NAME,
 		.of_match_table	= pcs_of_match,
+		.pm = pm_ptr(&pinctrl_single_pm_ops),
 	},
-#ifdef CONFIG_PM
-	.suspend = pinctrl_single_suspend,
-	.resume = pinctrl_single_resume,
-#endif
 };
 
 module_platform_driver(pcs_driver);