From: Krzysztof Kozlowski <krzk@kernel.org>
To: Jonathan Cameron <jic23@kernel.org>,
Hartmut Knaack <knaack.h@gmx.de>,
Lars-Peter Clausen <lars@metafoo.de>,
Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
Peter Rosin <peda@axentia.se>, Kukjin Kim <kgene@kernel.org>,
Krzysztof Kozlowski <krzk@kernel.org>,
Michael Hennerich <Michael.Hennerich@analog.com>,
Kevin Hilman <khilman@baylibre.com>,
Neil Armstrong <narmstrong@baylibre.com>,
Jerome Brunet <jbrunet@baylibre.com>,
Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
Marek Vasut <marek.vasut@gmail.com>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Alexandre Torgue <alexandre.torgue@st.com>,
Beniamin Bia <beniamin.bia@analog.com>,
Tomasz Duszynski <tomasz.duszynski@octakon.com>,
Linus Walleij <linus.walleij@linaro.org>,
Andy Shevchenko <andy.shevchenko@gmail.com>,
linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org,
linux-amlogic@lists.infradead.org,
linux-stm32@st-md-mailman.stormreply.com
Subject: [PATCH v2 08/18] iio: adc: stm32: Simplify with dev_err_probe()
Date: Thu, 27 Aug 2020 21:26:32 +0200 [thread overview]
Message-ID: <20200827192642.1725-8-krzk@kernel.org> (raw)
In-Reply-To: <20200827192642.1725-1-krzk@kernel.org>
Common pattern of handling deferred probe can be simplified with
dev_err_probe(). Less code and also it prints the error value.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---
Changes since v1:
1. Convert to devm_clk_get_optional
2. Update also stm32-dfsdm-core and stm32-dac-core.
3. Wrap around 100 characters (accepted by checkpatch).
---
drivers/iio/adc/stm32-adc-core.c | 67 +++++++++---------------------
drivers/iio/adc/stm32-adc.c | 9 +---
drivers/iio/adc/stm32-dfsdm-adc.c | 9 +---
drivers/iio/adc/stm32-dfsdm-core.c | 8 +---
drivers/iio/dac/stm32-dac-core.c | 5 +--
5 files changed, 26 insertions(+), 72 deletions(-)
diff --git a/drivers/iio/adc/stm32-adc-core.c b/drivers/iio/adc/stm32-adc-core.c
index 0e2068ec068b..707c85dab7df 100644
--- a/drivers/iio/adc/stm32-adc-core.c
+++ b/drivers/iio/adc/stm32-adc-core.c
@@ -582,11 +582,9 @@ static int stm32_adc_core_switches_probe(struct device *dev,
priv->syscfg = syscon_regmap_lookup_by_phandle(np, "st,syscfg");
if (IS_ERR(priv->syscfg)) {
ret = PTR_ERR(priv->syscfg);
- if (ret != -ENODEV) {
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "Can't probe syscfg: %d\n", ret);
- return ret;
- }
+ if (ret != -ENODEV)
+ return dev_err_probe(dev, ret, "Can't probe syscfg\n");
+
priv->syscfg = NULL;
}
@@ -596,12 +594,9 @@ static int stm32_adc_core_switches_probe(struct device *dev,
priv->booster = devm_regulator_get_optional(dev, "booster");
if (IS_ERR(priv->booster)) {
ret = PTR_ERR(priv->booster);
- if (ret != -ENODEV) {
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "can't get booster %d\n",
- ret);
- return ret;
- }
+ if (ret != -ENODEV)
+ dev_err_probe(dev, ret, "can't get booster\n");
+
priv->booster = NULL;
}
}
@@ -612,11 +607,9 @@ static int stm32_adc_core_switches_probe(struct device *dev,
priv->vdd = devm_regulator_get_optional(dev, "vdd");
if (IS_ERR(priv->vdd)) {
ret = PTR_ERR(priv->vdd);
- if (ret != -ENODEV) {
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "can't get vdd %d\n", ret);
- return ret;
- }
+ if (ret != -ENODEV)
+ return dev_err_probe(dev, ret, "can't get vdd\n");
+
priv->vdd = NULL;
}
}
@@ -669,42 +662,20 @@ static int stm32_adc_probe(struct platform_device *pdev)
priv->common.phys_base = res->start;
priv->vdda = devm_regulator_get(&pdev->dev, "vdda");
- if (IS_ERR(priv->vdda)) {
- ret = PTR_ERR(priv->vdda);
- if (ret != -EPROBE_DEFER)
- dev_err(&pdev->dev, "vdda get failed, %d\n", ret);
- return ret;
- }
+ if (IS_ERR(priv->vdda))
+ return dev_err_probe(&pdev->dev, PTR_ERR(priv->vdda), "vdda get failed\n");
priv->vref = devm_regulator_get(&pdev->dev, "vref");
- if (IS_ERR(priv->vref)) {
- ret = PTR_ERR(priv->vref);
- if (ret != -EPROBE_DEFER)
- dev_err(&pdev->dev, "vref get failed, %d\n", ret);
- return ret;
- }
+ if (IS_ERR(priv->vref))
+ return dev_err_probe(&pdev->dev, PTR_ERR(priv->vref), "vref get failed\n");
- priv->aclk = devm_clk_get(&pdev->dev, "adc");
- if (IS_ERR(priv->aclk)) {
- ret = PTR_ERR(priv->aclk);
- if (ret != -ENOENT) {
- if (ret != -EPROBE_DEFER)
- dev_err(&pdev->dev, "Can't get 'adc' clock\n");
- return ret;
- }
- priv->aclk = NULL;
- }
+ priv->aclk = devm_clk_get_optional(&pdev->dev, "adc");
+ if (IS_ERR(priv->aclk))
+ return dev_err_probe(&pdev->dev, PTR_ERR(priv->aclk), "Can't get 'adc' clock\n");
- priv->bclk = devm_clk_get(&pdev->dev, "bus");
- if (IS_ERR(priv->bclk)) {
- ret = PTR_ERR(priv->bclk);
- if (ret != -ENOENT) {
- if (ret != -EPROBE_DEFER)
- dev_err(&pdev->dev, "Can't get 'bus' clock\n");
- return ret;
- }
- priv->bclk = NULL;
- }
+ priv->bclk = devm_clk_get_optional(&pdev->dev, "bus");
+ if (IS_ERR(priv->bclk))
+ return dev_err_probe(&pdev->dev, PTR_ERR(priv->bclk), "Can't get 'bus' clock\n");
ret = stm32_adc_core_switches_probe(dev, priv);
if (ret)
diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c
index 3eb9ebe8372f..b8e764ca54a6 100644
--- a/drivers/iio/adc/stm32-adc.c
+++ b/drivers/iio/adc/stm32-adc.c
@@ -1805,13 +1805,8 @@ static int stm32_adc_dma_request(struct device *dev, struct iio_dev *indio_dev)
adc->dma_chan = dma_request_chan(dev, "rx");
if (IS_ERR(adc->dma_chan)) {
ret = PTR_ERR(adc->dma_chan);
- if (ret != -ENODEV) {
- if (ret != -EPROBE_DEFER)
- dev_err(dev,
- "DMA channel request failed with %d\n",
- ret);
- return ret;
- }
+ if (ret != -ENODEV)
+ return dev_err_probe(dev, ret, "DMA channel request failed with\n");
/* DMA is optional: fall back to IRQ mode */
adc->dma_chan = NULL;
diff --git a/drivers/iio/adc/stm32-dfsdm-adc.c b/drivers/iio/adc/stm32-dfsdm-adc.c
index 5e10fb4f3704..12c951078c1f 100644
--- a/drivers/iio/adc/stm32-dfsdm-adc.c
+++ b/drivers/iio/adc/stm32-dfsdm-adc.c
@@ -1473,13 +1473,8 @@ static int stm32_dfsdm_adc_init(struct device *dev, struct iio_dev *indio_dev)
/* Optionally request DMA */
ret = stm32_dfsdm_dma_request(dev, indio_dev);
if (ret) {
- if (ret != -ENODEV) {
- if (ret != -EPROBE_DEFER)
- dev_err(dev,
- "DMA channel request failed with %d\n",
- ret);
- return ret;
- }
+ if (ret != -ENODEV)
+ return dev_err_probe(dev, ret, "DMA channel request failed with\n");
dev_dbg(dev, "No DMA support\n");
return 0;
diff --git a/drivers/iio/adc/stm32-dfsdm-core.c b/drivers/iio/adc/stm32-dfsdm-core.c
index 26e2011c5868..34e4e6e59acf 100644
--- a/drivers/iio/adc/stm32-dfsdm-core.c
+++ b/drivers/iio/adc/stm32-dfsdm-core.c
@@ -243,12 +243,8 @@ static int stm32_dfsdm_parse_of(struct platform_device *pdev,
* on use case.
*/
priv->clk = devm_clk_get(&pdev->dev, "dfsdm");
- if (IS_ERR(priv->clk)) {
- ret = PTR_ERR(priv->clk);
- if (ret != -EPROBE_DEFER)
- dev_err(&pdev->dev, "Failed to get clock (%d)\n", ret);
- return ret;
- }
+ if (IS_ERR(priv->clk))
+ return dev_err_probe(&pdev->dev, PTR_ERR(priv->clk), "Failed to get clock\n");
priv->aclk = devm_clk_get(&pdev->dev, "audio");
if (IS_ERR(priv->aclk))
diff --git a/drivers/iio/dac/stm32-dac-core.c b/drivers/iio/dac/stm32-dac-core.c
index 7e5809ba0dee..906436780347 100644
--- a/drivers/iio/dac/stm32-dac-core.c
+++ b/drivers/iio/dac/stm32-dac-core.c
@@ -150,10 +150,7 @@ static int stm32_dac_probe(struct platform_device *pdev)
rst = devm_reset_control_get_optional_exclusive(dev, NULL);
if (rst) {
if (IS_ERR(rst)) {
- ret = PTR_ERR(rst);
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "reset get failed, %d\n", ret);
-
+ ret = dev_err_probe(dev, PTR_ERR(rst), "reset get failed\n");
goto err_hw_stop;
}
--
2.17.1
next prev parent reply other threads:[~2020-08-27 19:28 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-27 19:26 [PATCH v2 01/18] iio: accel: bma180: Simplify with dev_err_probe() Krzysztof Kozlowski
2020-08-27 19:26 ` [PATCH v2 02/18] iio: accel: mma8452: " Krzysztof Kozlowski
2020-08-27 19:45 ` Andy Shevchenko
2020-08-27 19:26 ` [PATCH v2 03/18] iio: adc: envelope-detector: " Krzysztof Kozlowski
2020-08-27 19:46 ` Andy Shevchenko
2020-08-27 19:26 ` [PATCH v2 04/18] iio: adc: exynos_adc: " Krzysztof Kozlowski
2020-08-27 19:46 ` Andy Shevchenko
2020-08-27 19:26 ` [PATCH v2 05/18] iio: adc: ltc2497: " Krzysztof Kozlowski
2020-08-27 19:48 ` Andy Shevchenko
2020-08-27 19:26 ` [PATCH v2 06/18] iio: adc: meson_saradc: " Krzysztof Kozlowski
2020-08-27 19:48 ` Andy Shevchenko
2020-08-27 19:26 ` [PATCH v2 07/18] iio: adc: rcar-gyroadc: " Krzysztof Kozlowski
2020-08-27 19:49 ` Andy Shevchenko
2020-08-27 19:26 ` Krzysztof Kozlowski [this message]
2020-08-27 19:51 ` [PATCH v2 08/18] iio: adc: stm32: " Andy Shevchenko
2020-08-27 19:26 ` [PATCH v2 09/18] iio: afe: iio-rescale: " Krzysztof Kozlowski
2020-08-27 19:54 ` Andy Shevchenko
2020-08-27 21:46 ` Peter Rosin
2020-08-28 6:24 ` Krzysztof Kozlowski
2020-08-28 6:57 ` Peter Rosin
2020-08-28 7:03 ` Krzysztof Kozlowski
2020-08-28 9:39 ` Peter Rosin
2020-08-28 17:51 ` Joe Perches
2020-08-28 8:25 ` Andy Shevchenko
2020-08-28 9:39 ` Peter Rosin
2020-08-27 19:26 ` [PATCH v2 10/18] iio: amplifiers: hmc425a: " Krzysztof Kozlowski
2020-08-27 19:55 ` Andy Shevchenko
2020-08-27 19:26 ` [PATCH v2 11/18] iio: chemical: scd30: " Krzysztof Kozlowski
2020-08-27 19:55 ` Andy Shevchenko
2020-08-27 19:26 ` [PATCH v2 12/18] iio: dac: dpot-dac: " Krzysztof Kozlowski
2020-08-27 19:55 ` Andy Shevchenko
2020-08-27 19:26 ` [PATCH v2 13/18] iio: imu: inv_mpu6050: " Krzysztof Kozlowski
2020-08-27 19:59 ` Andy Shevchenko
2020-08-28 6:36 ` Jean-Baptiste Maneyrol
2020-08-27 19:26 ` [PATCH v2 14/18] iio: light: isl29018: " Krzysztof Kozlowski
2020-08-27 20:00 ` Andy Shevchenko
2020-08-27 19:26 ` [PATCH v2 15/18] iio: light: tsl2772: " Krzysztof Kozlowski
2020-08-27 20:00 ` Andy Shevchenko
2020-08-27 19:26 ` [PATCH v2 16/18] iio: magnetometer: ak8974: " Krzysztof Kozlowski
2020-08-27 20:01 ` Andy Shevchenko
2020-08-28 14:33 ` Linus Walleij
2020-08-27 19:26 ` [PATCH v2 17/18] iio: magnetometer: mag3110: " Krzysztof Kozlowski
2020-08-27 20:01 ` Andy Shevchenko
2020-08-27 19:26 ` [PATCH v2 18/18] iio: magnetometer: iio-mux: " Krzysztof Kozlowski
2020-08-27 20:02 ` Andy Shevchenko
2020-08-27 21:52 ` Peter Rosin
2020-08-27 19:38 ` [PATCH v2 01/18] iio: accel: bma180: " Andy Shevchenko
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