linux-kernel - [PATCH v1 1/2] pinctrl: baytrail: drop runtime PM support

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Message-Id: <20231003081519.27524-1-raag.jadav@intel.com>
Date:   Tue,  3 Oct 2023 13:45:18 +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 1/2] pinctrl: baytrail: drop runtime PM support

Since Baytrail 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 suspend and resume handles in place.

No functional impact.

TODO:
Consider moving to DEFINE_LATE_DEV_PM_OPS() in the future once we have
enough users to account for its introduction.

Signed-off-by: Raag Jadav <raag.jadav@...el.com>
Acked-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
---
 drivers/pinctrl/intel/pinctrl-baytrail.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c
index ec76e43527c5..14a61a262be1 100644
--- a/drivers/pinctrl/intel/pinctrl-baytrail.c
+++ b/drivers/pinctrl/intel/pinctrl-baytrail.c
@@ -16,7 +16,6 @@
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
 #include <linux/property.h>
 #include <linux/seq_file.h>
 #include <linux/string_helpers.h>
@@ -722,8 +721,6 @@ static int byt_gpio_request_enable(struct pinctrl_dev *pctl_dev,
 
 	raw_spin_unlock_irqrestore(&byt_lock, flags);
 
-	pm_runtime_get(vg->dev);
-
 	return 0;
 }
 
@@ -734,7 +731,6 @@ static void byt_gpio_disable_free(struct pinctrl_dev *pctl_dev,
 	struct intel_pinctrl *vg = pinctrl_dev_get_drvdata(pctl_dev);
 
 	byt_gpio_clear_triggering(vg, offset);
-	pm_runtime_put(vg->dev);
 }
 
 static void byt_gpio_direct_irq_check(struct intel_pinctrl *vg,
@@ -1661,7 +1657,6 @@ static int byt_pinctrl_probe(struct platform_device *pdev)
 		return ret;
 
 	platform_set_drvdata(pdev, vg);
-	pm_runtime_enable(dev);
 
 	return 0;
 }
@@ -1750,26 +1745,15 @@ static int byt_gpio_resume(struct device *dev)
 	return 0;
 }
 
-static int byt_gpio_runtime_suspend(struct device *dev)
-{
-	return 0;
-}
-
-static int byt_gpio_runtime_resume(struct device *dev)
-{
-	return 0;
-}
-
 static const struct dev_pm_ops byt_gpio_pm_ops = {
 	LATE_SYSTEM_SLEEP_PM_OPS(byt_gpio_suspend, byt_gpio_resume)
-	RUNTIME_PM_OPS(byt_gpio_runtime_suspend, byt_gpio_runtime_resume, NULL)
 };
 
 static struct platform_driver byt_gpio_driver = {
 	.probe          = byt_pinctrl_probe,
 	.driver         = {
 		.name			= "byt_gpio",
-		.pm			= pm_ptr(&byt_gpio_pm_ops),
+		.pm			= pm_sleep_ptr(&byt_gpio_pm_ops),
 		.acpi_match_table	= byt_gpio_acpi_match,
 		.suppress_bind_attrs	= true,
 	},
-- 
2.17.1