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From: Florian Fainelli <florian.fainelli@broadcom.com>
To: linux-pwm@vger.kernel.org
Cc: "Florian Fainelli" <florian.fainelli@broadcom.com>,
	"Thierry Reding" <thierry.reding@gmail.com>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	"Broadcom internal kernel review list"
	<bcm-kernel-feedback-list@broadcom.com>,
	linux-arm-kernel@lists.infradead.org (moderated list:BROADCOM
	BCM7XXX ARM ARCHITECTURE),
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH] pwm: brcmstb: Utilize appropriate clock APIs in suspend/resume
Date: Wed,  4 Oct 2023 10:54:14 -0700	[thread overview]
Message-ID: <20231004175414.1738475-1-florian.fainelli@broadcom.com> (raw)

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The suspend/resume functions currently utilize
clk_disable()/clk_enable() respectively which may be no-ops with certain
clock providers such as SCMI. Fix this to use clk_disable_unprepare()
and clk_prepare_enable() respectively as we should.

Fixes: 3a9f5957020f ("pwm: Add Broadcom BCM7038 PWM controller support")
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
---
 drivers/pwm/pwm-brcmstb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pwm/pwm-brcmstb.c b/drivers/pwm/pwm-brcmstb.c
index a3faa9a3de7c..a7d529bf76ad 100644
--- a/drivers/pwm/pwm-brcmstb.c
+++ b/drivers/pwm/pwm-brcmstb.c
@@ -288,7 +288,7 @@ static int brcmstb_pwm_suspend(struct device *dev)
 {
 	struct brcmstb_pwm *p = dev_get_drvdata(dev);
 
-	clk_disable(p->clk);
+	clk_disable_unprepare(p->clk);
 
 	return 0;
 }
@@ -297,7 +297,7 @@ static int brcmstb_pwm_resume(struct device *dev)
 {
 	struct brcmstb_pwm *p = dev_get_drvdata(dev);
 
-	clk_enable(p->clk);
+	clk_prepare_enable(p->clk);
 
 	return 0;
 }
-- 
2.34.1


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WARNING: multiple messages have this Message-ID (diff)
From: Florian Fainelli <florian.fainelli@broadcom.com>
To: linux-pwm@vger.kernel.org
Cc: "Florian Fainelli" <florian.fainelli@broadcom.com>,
	"Thierry Reding" <thierry.reding@gmail.com>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	"Broadcom internal kernel review list"
	<bcm-kernel-feedback-list@broadcom.com>,
	linux-arm-kernel@lists.infradead.org (moderated list:BROADCOM
	BCM7XXX ARM ARCHITECTURE),
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH] pwm: brcmstb: Utilize appropriate clock APIs in suspend/resume
Date: Wed,  4 Oct 2023 10:54:14 -0700	[thread overview]
Message-ID: <20231004175414.1738475-1-florian.fainelli@broadcom.com> (raw)


[-- Attachment #1.1: Type: text/plain, Size: 1042 bytes --]

The suspend/resume functions currently utilize
clk_disable()/clk_enable() respectively which may be no-ops with certain
clock providers such as SCMI. Fix this to use clk_disable_unprepare()
and clk_prepare_enable() respectively as we should.

Fixes: 3a9f5957020f ("pwm: Add Broadcom BCM7038 PWM controller support")
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
---
 drivers/pwm/pwm-brcmstb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pwm/pwm-brcmstb.c b/drivers/pwm/pwm-brcmstb.c
index a3faa9a3de7c..a7d529bf76ad 100644
--- a/drivers/pwm/pwm-brcmstb.c
+++ b/drivers/pwm/pwm-brcmstb.c
@@ -288,7 +288,7 @@ static int brcmstb_pwm_suspend(struct device *dev)
 {
 	struct brcmstb_pwm *p = dev_get_drvdata(dev);
 
-	clk_disable(p->clk);
+	clk_disable_unprepare(p->clk);
 
 	return 0;
 }
@@ -297,7 +297,7 @@ static int brcmstb_pwm_resume(struct device *dev)
 {
 	struct brcmstb_pwm *p = dev_get_drvdata(dev);
 
-	clk_enable(p->clk);
+	clk_prepare_enable(p->clk);
 
 	return 0;
 }
-- 
2.34.1


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             reply	other threads:[~2023-10-04 17:54 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-04 17:54 Florian Fainelli [this message]
2023-10-04 17:54 ` [PATCH] pwm: brcmstb: Utilize appropriate clock APIs in suspend/resume Florian Fainelli
2023-10-05  6:20 ` Uwe Kleine-König
2023-10-05  6:20   ` Uwe Kleine-König
2023-10-12 13:55 ` Thierry Reding
2023-10-12 13:55   ` Thierry Reding

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