linux-kernel - [PATCH v1 2/2] pinctrl: lynxpoint: drop runtime PM support

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Date:   Tue,  3 Oct 2023 13:45:19 +0530
From:   Raag Jadav <raag.jadav@...el.com>
To:     linus.walleij@...aro.org, mika.westerberg@...ux.intel.com,
        andriy.shevchenko@...ux.intel.com
Cc:     linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        mallikarjunappa.sangannavar@...el.com, bala.senthil@...el.com,
        Raag Jadav <raag.jadav@...el.com>
Subject: [PATCH v1 2/2] pinctrl: lynxpoint: drop runtime PM support

Since Lynxpoint pinctrl device is not attached to acpi_lpss_pm_domain,
runtime PM serves no purpose here. Drop it and switch to pm_sleep_ptr()
as now we only have resume handle in place.

No functional impact.

Signed-off-by: Raag Jadav <raag.jadav@...el.com>
Acked-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
---
 drivers/pinctrl/intel/pinctrl-lynxpoint.c | 31 ++---------------------
 1 file changed, 2 insertions(+), 29 deletions(-)

diff --git a/drivers/pinctrl/intel/pinctrl-lynxpoint.c b/drivers/pinctrl/intel/pinctrl-lynxpoint.c
index c3732a9f0658..18ea1c3fa7bb 100644
--- a/drivers/pinctrl/intel/pinctrl-lynxpoint.c
+++ b/drivers/pinctrl/intel/pinctrl-lynxpoint.c
@@ -15,7 +15,6 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>
 #include <linux/types.h>
@@ -337,8 +336,6 @@ static int lp_gpio_request_enable(struct pinctrl_dev *pctldev,
 	unsigned long flags;
 	u32 value;
 
-	pm_runtime_get(lg->dev);
-
 	raw_spin_lock_irqsave(&lg->lock, flags);
 
 	/*
@@ -373,8 +370,6 @@ static void lp_gpio_disable_free(struct pinctrl_dev *pctldev,
 	lp_gpio_disable_input(conf2);
 
 	raw_spin_unlock_irqrestore(&lg->lock, flags);
-
-	pm_runtime_put(lg->dev);
 }
 
 static int lp_gpio_set_direction(struct pinctrl_dev *pctldev,
@@ -841,24 +836,6 @@ static int lp_gpio_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	pm_runtime_enable(dev);
-
-	return 0;
-}
-
-static int lp_gpio_remove(struct platform_device *pdev)
-{
-	pm_runtime_disable(&pdev->dev);
-	return 0;
-}
-
-static int lp_gpio_runtime_suspend(struct device *dev)
-{
-	return 0;
-}
-
-static int lp_gpio_runtime_resume(struct device *dev)
-{
 	return 0;
 }
 
@@ -876,10 +853,7 @@ static int lp_gpio_resume(struct device *dev)
 	return 0;
 }
 
-static const struct dev_pm_ops lp_gpio_pm_ops = {
-	SYSTEM_SLEEP_PM_OPS(NULL, lp_gpio_resume)
-	RUNTIME_PM_OPS(lp_gpio_runtime_suspend, lp_gpio_runtime_resume, NULL)
-};
+static DEFINE_SIMPLE_DEV_PM_OPS(lp_gpio_pm_ops, NULL, lp_gpio_resume);
 
 static const struct acpi_device_id lynxpoint_gpio_acpi_match[] = {
 	{ "INT33C7", (kernel_ulong_t)&lptlp_soc_data },
@@ -890,10 +864,9 @@ MODULE_DEVICE_TABLE(acpi, lynxpoint_gpio_acpi_match);
 
 static struct platform_driver lp_gpio_driver = {
 	.probe          = lp_gpio_probe,
-	.remove         = lp_gpio_remove,
 	.driver         = {
 		.name   = "lp_gpio",
-		.pm	= pm_ptr(&lp_gpio_pm_ops),
+		.pm	= pm_sleep_ptr(&lp_gpio_pm_ops),
 		.acpi_match_table = lynxpoint_gpio_acpi_match,
 	},
 };
-- 
2.17.1