linux-kernel - [PATCH v2] mfd: tc6393xb: Make disable callback return void

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Date:   Sun, 19 Jun 2022 10:26:55 +0200
From:   Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
To:     Lee Jones <lee.jones@...aro.org>, Daniel Mack <daniel@...que.org>,
        Haojian Zhuang <haojian.zhuang@...il.com>,
        Robert Jarzmik <robert.jarzmik@...e.fr>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel@...gutronix.de
Subject: [PATCH v2] mfd: tc6393xb: Make disable callback return void

All implementations return 0, so simplify accordingly.

This is a preparation for making platform remove callbacks return void.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
---
Hello,

compared to (implicit) v1
(https://lore.kernel.org/r/20220530192430.2108217-5-u.kleine-koenig@pengutronix.de)
this is rebased to v5.19-rc1. Up to now there is only a single patch in
next (next-20220617) since -rc1 touching one of the files:

	0fdebc5ec2ca ("treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 1)")

I don't expect any conflicts that need manual intervention.

Best regards
Uwe

 arch/arm/mach-pxa/eseries.c  | 3 +--
 arch/arm/mach-pxa/tosa.c     | 4 +---
 drivers/mfd/tc6393xb.c       | 5 ++---
 include/linux/mfd/tc6393xb.h | 2 +-
 4 files changed, 5 insertions(+), 9 deletions(-)

diff --git a/arch/arm/mach-pxa/eseries.c b/arch/arm/mach-pxa/eseries.c
index 08f8737aa8fd..114f0baf087f 100644
--- a/arch/arm/mach-pxa/eseries.c
+++ b/arch/arm/mach-pxa/eseries.c
@@ -86,11 +86,10 @@ int eseries_tmio_enable(struct platform_device *dev)
 	return 0;
 }
 
-int eseries_tmio_disable(struct platform_device *dev)
+void eseries_tmio_disable(struct platform_device *dev)
 {
 	gpio_set_value(GPIO_ESERIES_TMIO_SUSPEND, 0);
 	gpio_set_value(GPIO_ESERIES_TMIO_PCLR, 0);
-	return 0;
 }
 
 int eseries_tmio_suspend(struct platform_device *dev)
diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index 6af8bc404825..d41641d6cfcd 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -678,13 +678,11 @@ static int tosa_tc6393xb_enable(struct platform_device *dev)
 	return rc;
 }
 
-static int tosa_tc6393xb_disable(struct platform_device *dev)
+static void tosa_tc6393xb_disable(struct platform_device *dev)
 {
 	gpio_free(TOSA_GPIO_TC6393XB_L3V_ON);
 	gpio_free(TOSA_GPIO_TC6393XB_SUSPEND);
 	gpio_free(TOSA_GPIO_TC6393XB_REST_IN);
-
-	return 0;
 }
 
 static int tosa_tc6393xb_resume(struct platform_device *dev)
diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c
index 0be5731685b4..aa903a31dd43 100644
--- a/drivers/mfd/tc6393xb.c
+++ b/drivers/mfd/tc6393xb.c
@@ -798,20 +798,19 @@ static int tc6393xb_remove(struct platform_device *dev)
 {
 	struct tc6393xb_platform_data *tcpd = dev_get_platdata(&dev->dev);
 	struct tc6393xb *tc6393xb = platform_get_drvdata(dev);
-	int ret;
 
 	mfd_remove_devices(&dev->dev);
 
 	tc6393xb_detach_irq(dev);
 
-	ret = tcpd->disable(dev);
+	tcpd->disable(dev);
 	clk_disable_unprepare(tc6393xb->clk);
 	iounmap(tc6393xb->scr);
 	release_resource(&tc6393xb->rscr);
 	clk_put(tc6393xb->clk);
 	kfree(tc6393xb);
 
-	return ret;
+	return 0;
 }
 
 #ifdef CONFIG_PM
diff --git a/include/linux/mfd/tc6393xb.h b/include/linux/mfd/tc6393xb.h
index d336c541b7df..d17807f2d0c9 100644
--- a/include/linux/mfd/tc6393xb.h
+++ b/include/linux/mfd/tc6393xb.h
@@ -22,7 +22,7 @@ struct tc6393xb_platform_data {
 	u16	scr_gper;	/* GP Enable */
 
 	int	(*enable)(struct platform_device *dev);
-	int	(*disable)(struct platform_device *dev);
+	void	(*disable)(struct platform_device *dev);
 	int	(*suspend)(struct platform_device *dev);
 	int	(*resume)(struct platform_device *dev);
 

base-commit: f2906aa863381afb0015a9eb7fefad885d4e5a56
-- 
2.36.1