linux-kernel - [PATCH v3 05/12] iio: dac: Remove redundant pm_runtime_mark_last

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Message-ID: <20250825135401.1765847-6-sakari.ailus@linux.intel.com>
Date: Mon, 25 Aug 2025 16:53:54 +0300
From: Sakari Ailus <sakari.ailus@...ux.intel.com>
To: Jonathan Cameron <jic23@...nel.org>,
	David Lechner <dlechner@...libre.com>,
	Nuno Sá <nuno.sa@...log.com>,
	Andy Shevchenko <andy@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Eugen Hristev <eugen.hristev@...aro.org>,
	Nicolas Ferre <nicolas.ferre@...rochip.com>,
	Alexandre Belloni <alexandre.belloni@...tlin.com>,
	Claudiu Beznea <claudiu.beznea@...on.dev>,
	Cai Huoqing <cai.huoqing@...ux.dev>,
	Haibo Chen <haibo.chen@....com>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	Marek Vasut <marek.vasut@...il.com>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
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	Julien Stephan <jstephan@...libre.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Sakari Ailus <sakari.ailus@...ux.intel.com>,
	Greg KH <gregkh@...uxfoundation.org>,
	Bo Liu <liubo03@...pur.com>,
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Cc: linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	imx@...ts.linux.dev,
	linux-renesas-soc@...r.kernel.org,
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Subject: [PATCH v3 05/12] iio: dac: Remove redundant pm_runtime_mark_last_busy() calls

pm_runtime_put_autosuspend(), pm_runtime_put_sync_autosuspend(),
pm_runtime_autosuspend() and pm_request_autosuspend() now include a call
to pm_runtime_mark_last_busy(). Remove the now-reduntant explicit call to
pm_runtime_mark_last_busy().

Also clean up error handling in stm32_dac_set_enable_state().

Signed-off-by: Sakari Ailus <sakari.ailus@...ux.intel.com>
---
 drivers/iio/dac/stm32-dac.c | 19 ++++---------------
 1 file changed, 4 insertions(+), 15 deletions(-)

diff --git a/drivers/iio/dac/stm32-dac.c b/drivers/iio/dac/stm32-dac.c
index 344388338d9b..e8688f9d6df7 100644
--- a/drivers/iio/dac/stm32-dac.c
+++ b/drivers/iio/dac/stm32-dac.c
@@ -82,9 +82,9 @@ static int stm32_dac_set_enable_state(struct iio_dev *indio_dev, int ch,
 
 	ret = regmap_update_bits(dac->common->regmap, STM32_DAC_CR, msk, en);
 	mutex_unlock(&dac->lock);
-	if (ret < 0) {
+	if (ret) {
 		dev_err(&indio_dev->dev, "%s failed\n", str_enable_disable(en));
-		goto err_put_pm;
+		goto err_pm_put;
 	}
 
 	/*
@@ -95,18 +95,8 @@ static int stm32_dac_set_enable_state(struct iio_dev *indio_dev, int ch,
 	if (en && dac->common->hfsel)
 		udelay(1);
 
-	if (!enable) {
-		pm_runtime_mark_last_busy(dev);
-		pm_runtime_put_autosuspend(dev);
-	}
-
-	return 0;
-
-err_put_pm:
-	if (enable) {
-		pm_runtime_mark_last_busy(dev);
-		pm_runtime_put_autosuspend(dev);
-	}
+err_pm_put:
+	pm_runtime_put_autosuspend(dev);
 
 	return ret;
 }
@@ -349,7 +339,6 @@ static int stm32_dac_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_pm_put;
 
-	pm_runtime_mark_last_busy(dev);
 	pm_runtime_put_autosuspend(dev);
 
 	return 0;
-- 
2.47.2