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Message-Id: <20220819153836.277721535@linuxfoundation.org>
Date: Fri, 19 Aug 2022 17:38:45 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org,
Uwe Kleine-König
<u.kleine-koenig@...gutronix.de>,
Emil Renner Berthing <emil.renner.berthing@...onical.com>,
Thierry Reding <thierry.reding@...il.com>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 155/545] pwm: sifive: Shut down hardware only after pwmchip_remove() completed
From: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
[ Upstream commit 2375e964d541bb09158cd2dff67b5d74e8de61cd ]
The PWMs are expected to be functional until pwmchip_remove() is called.
So disable the clks only afterwards.
Fixes: 9e37a53eb051 ("pwm: sifive: Add a driver for SiFive SoC PWM")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
Tested-by: Emil Renner Berthing <emil.renner.berthing@...onical.com>
Signed-off-by: Thierry Reding <thierry.reding@...il.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/pwm/pwm-sifive.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/pwm/pwm-sifive.c b/drivers/pwm/pwm-sifive.c
index 1def1bc59240..9cc0612f0849 100644
--- a/drivers/pwm/pwm-sifive.c
+++ b/drivers/pwm/pwm-sifive.c
@@ -326,6 +326,9 @@ static int pwm_sifive_remove(struct platform_device *dev)
struct pwm_device *pwm;
int ch;
+ pwmchip_remove(&ddata->chip);
+ clk_notifier_unregister(ddata->clk, &ddata->notifier);
+
for (ch = 0; ch < ddata->chip.npwm; ch++) {
pwm = &ddata->chip.pwms[ch];
if (pwm->state.enabled)
@@ -333,8 +336,6 @@ static int pwm_sifive_remove(struct platform_device *dev)
}
clk_unprepare(ddata->clk);
- pwmchip_remove(&ddata->chip);
- clk_notifier_unregister(ddata->clk, &ddata->notifier);
return 0;
}
--
2.35.1
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