linux-kernel - [PATCH 1/2] pwm: samsung: Fix broken resume after putting per-channel data into driver data

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Message-Id: <20231109104748.2746839-1-m.szyprowski@samsung.com>
Date:   Thu,  9 Nov 2023 11:47:47 +0100
From:   Marek Szyprowski <m.szyprowski@...sung.com>
To:     linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-pwm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Marek Szyprowski <m.szyprowski@...sung.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
Subject: [PATCH 1/2] pwm: samsung: Fix broken resume after putting
 per-channel data into driver data

PWMF_EXPORTED is misleadingly used as a bit numer in the pwm->flags, not
as a flag value, so the proper test for it must use test_bit() helper.
This fixes broken resume after putting per-channel data into driver data.

Fixes: e3fe982b2e4e ("pwm: samsung: Put per-channel data into driver data")
Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
---
 drivers/pwm/pwm-samsung.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pwm/pwm-samsung.c b/drivers/pwm/pwm-samsung.c
index 568491ed6829..69d9f4577b34 100644
--- a/drivers/pwm/pwm-samsung.c
+++ b/drivers/pwm/pwm-samsung.c
@@ -631,7 +631,7 @@ static int pwm_samsung_resume(struct device *dev)
 		struct pwm_device *pwm = &chip->pwms[i];
 		struct samsung_pwm_channel *chan = &our_chip->channel[i];
 
-		if (!(pwm->flags & PWMF_REQUESTED))
+		if (!test_bit(PWMF_REQUESTED, &pwm->flags))
 			continue;
 
 		if (our_chip->variant.output_mask & BIT(i))
-- 
2.34.1