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From: Alexandru Ardelean <aardelean@deviqon.com>
To: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: jic23@kernel.org, Jonathan.Cameron@huawei.com,
	alexandru.tachici@analog.com, linux@deviqon.com,
	Alexandru Ardelean <aardelean@deviqon.com>
Subject: [PATCH v3 09/12] iio: adc: ad7192: use devm_clk_get_optional() for mclk
Date: Wed, 12 May 2021 20:49:11 +0300	[thread overview]
Message-ID: <20210512174914.10549-10-aardelean@deviqon.com> (raw)
In-Reply-To: <20210512174914.10549-1-aardelean@deviqon.com>

The devm_clk_get_optional() helper returns NULL when devm_clk_get() returns
-ENOENT.
This makes things slightly cleaner. The added benefit is mostly cosmetic.

Also, a minor detail with this call, is that the reference for the parent
device is taken as `spi->dev` instead of `&st->sd.spi->dev` (which looks a
little quirky).

Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
---
 drivers/iio/adc/ad7192.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/adc/ad7192.c b/drivers/iio/adc/ad7192.c
index 9da394ad3868..c3442e9aa9fd 100644
--- a/drivers/iio/adc/ad7192.c
+++ b/drivers/iio/adc/ad7192.c
@@ -326,7 +326,7 @@ static int ad7192_of_clock_select(struct ad7192_state *st)
 	clock_sel = AD7192_CLK_INT;
 
 	/* use internal clock */
-	if (PTR_ERR(st->mclk) == -ENOENT) {
+	if (st->mclk) {
 		if (of_property_read_bool(np, "adi,int-clock-output-enable"))
 			clock_sel = AD7192_CLK_INT_CO;
 	} else {
@@ -981,8 +981,8 @@ static int ad7192_probe(struct spi_device *spi)
 
 	st->fclk = AD7192_INT_FREQ_MHZ;
 
-	st->mclk = devm_clk_get(&st->sd.spi->dev, "mclk");
-	if (IS_ERR(st->mclk) && PTR_ERR(st->mclk) != -ENOENT) {
+	st->mclk = devm_clk_get_optional(&spi->dev, "mclk");
+	if (IS_ERR(st->mclk)) {
 		ret = PTR_ERR(st->mclk);
 		goto error_remove_trigger;
 	}
-- 
2.31.1


  parent reply	other threads:[~2021-05-12 19:37 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-12 17:49 [PATCH v3 00/12] ad_sigma_delta: convert all drivers to device-managed Alexandru Ardelean
2021-05-12 17:49 ` [PATCH v3 01/12] iio: adc: ad7124: Fix missbalanced regulator enable / disable on error Alexandru Ardelean
2021-05-12 17:49 ` [PATCH v3 02/12] iio: adc: ad7124: Fix potential overflow due to non sequential channel numbers Alexandru Ardelean
2021-05-12 17:49 ` [PATCH v3 03/12] iio: adc: ad7192: Avoid disabling a clock that was never enabled Alexandru Ardelean
2021-05-12 17:49 ` [PATCH v3 04/12] iio: adc: ad7192: handle zero Avdd regulator value Alexandru Ardelean
2021-05-13  7:41   ` Lars-Peter Clausen
2021-05-13  9:11     ` Alexandru Ardelean
2021-05-12 17:49 ` [PATCH v3 05/12] iio: adc: ad_sigma_delta: introduct devm_ad_sd_setup_buffer_and_trigger() Alexandru Ardelean
2021-05-12 17:49 ` [PATCH v3 06/12] iio: adc: ad7793: convert to device-managed functions Alexandru Ardelean
2021-05-12 17:49 ` [PATCH v3 07/12] iio: adc: ad7791: " Alexandru Ardelean
2021-05-12 17:49 ` [PATCH v3 08/12] iio: adc: ad7780: " Alexandru Ardelean
2021-05-12 17:49 ` Alexandru Ardelean [this message]
2021-05-12 17:49 ` [PATCH v3 10/12] iio: adc: ad7192: " Alexandru Ardelean
2021-05-12 17:49 ` [PATCH v3 11/12] iio: adc: ad7124: Use devm_ managed calls for all of probe() + drop remove() Alexandru Ardelean
2021-05-12 17:49 ` [PATCH v3 12/12] iio: adc: ad_sigma_delta: remove ad_sd_{setup,cleanup}_buffer_and_trigger() Alexandru Ardelean

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