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a=openpgp-sha256; l=1168; i=krzysztof.kozlowski@linaro.org; h=from:subject:message-id; bh=opt8++1g0VChwtIB/Fz1GiYx24pMTFMe80pujvPzm0s=; b=owEBbQKS/ZANAwAKAcE3ZuaGi4PXAcsmYgBl5tPWa6sw7b/TOSWZwZZYFLYG0BNvTG0TlbZoC 8bMfcQFWxqJAjMEAAEKAB0WIQTd0mIoPREbIztuuKjBN2bmhouD1wUCZebT1gAKCRDBN2bmhouD 14vBD/9cqYKdrTAFMz6KcpOJxJ61CvuYnUPyihjwAG5ODNJ/TVWyi23DB4xZuL9d5a1Ff1xPt0K xenDTpvWcGV4PuNDjXe+sLUd0VWaBr/u/qSnQgDEhzYBbP095TSe7svObyzpsA6qK3c6YpxWv4J jRHXI5HShKxxPH2EqrqgzFx+xQOhmJAcBuWDyOCQDkJwGjvNShtjm/Bucp04ehxnXM2pmmdSTKV uH20IKKiZvxuOfnllFf117Iet3e0cK7KCMmcAy4CNi8N4Fyyo8+KcX1o2jwaYEJBzGqjSZJfHEc vRjVzwLQg2mBtty/lc4PwvvKabGqaIqiW9nDsqg7s8StjZZ2C1Xj6tWBgvGJiPJrOPscB0anvRo //2hXe/fq7N4168QtWlzL4qnPMBVMP7xjIFwwXCFasHOgBBuaYcWRYSmydbuT+8E+Ca5g7LWTSx Yt+0Nk5JLCTQ2cRZVdB7GYf93YoNlJ3mm2LS/bSDlBWQWuR5RMeuGTY680tY+ZGlCfbWp+mZxyX brBg1fFJMyxwb2hPg8YaH8BWgaqQHz2M/jMeap2g8W3xYqSJcrwk82QrnNzfw95/w0o5ejrpADE KKV05pkeESvkDdw0gNi+Jl++3PUHsLFtdS/Zt0LRqULopfstN3o6duCsIifq2E558izCkBczLjg m6Eh1t0XIs2hpyA== X-Developer-Key: i=krzysztof.kozlowski@linaro.org; a=openpgp; fpr=9BD07E0E0C51F8D59677B7541B93437D3B41629B 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 Reviewed-by: Daniel Thompson --- drivers/video/backlight/gpio_backlight.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/drivers/video/backlight/gpio_backlight.c b/drivers/video/backlight/gpio_backlight.c index d28c30b2a35d..e0c8c2a3f5dc 100644 --- a/drivers/video/backlight/gpio_backlight.c +++ b/drivers/video/backlight/gpio_backlight.c @@ -64,13 +64,9 @@ static int gpio_backlight_probe(struct platform_device *pdev) def_value = device_property_read_bool(dev, "default-on"); gbl->gpiod = devm_gpiod_get(dev, NULL, GPIOD_ASIS); - if (IS_ERR(gbl->gpiod)) { - ret = PTR_ERR(gbl->gpiod); - if (ret != -EPROBE_DEFER) - dev_err(dev, - "Error: The gpios parameter is missing or invalid.\n"); - return ret; - } + if (IS_ERR(gbl->gpiod)) + return dev_err_probe(dev, PTR_ERR(gbl->gpiod), + "The gpios parameter is missing or invalid\n"); memset(&props, 0, sizeof(props)); props.type = BACKLIGHT_RAW; From patchwork Tue Mar 5 08:11:57 2024 Content-Type: text/plain; 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a=openpgp; fpr=9BD07E0E0C51F8D59677B7541B93437D3B41629B Common pattern of handling deferred probe can be simplified with dev_err_probe(). Less code and also it prints the error value. Reviewed-by: Daniel Thompson Signed-off-by: Krzysztof Kozlowski --- drivers/video/backlight/l4f00242t03.c | 34 ++++++++++++++-------------------- 1 file changed, 14 insertions(+), 20 deletions(-) diff --git a/drivers/video/backlight/l4f00242t03.c b/drivers/video/backlight/l4f00242t03.c index cc763cf15f53..bd5137ee203b 100644 --- a/drivers/video/backlight/l4f00242t03.c +++ b/drivers/video/backlight/l4f00242t03.c @@ -179,34 +179,28 @@ static int l4f00242t03_probe(struct spi_device *spi) priv->spi = spi; priv->reset = devm_gpiod_get(&spi->dev, "reset", GPIOD_OUT_HIGH); - if (IS_ERR(priv->reset)) { - dev_err(&spi->dev, - "Unable to get the lcd l4f00242t03 reset gpio.\n"); - return PTR_ERR(priv->reset); - } + if (IS_ERR(priv->reset)) + return dev_err_probe(&spi->dev, PTR_ERR(priv->reset), + "Unable to get the lcd l4f00242t03 reset gpio.\n"); gpiod_set_consumer_name(priv->reset, "lcd l4f00242t03 reset"); priv->enable = devm_gpiod_get(&spi->dev, "enable", GPIOD_OUT_LOW); - if (IS_ERR(priv->enable)) { - dev_err(&spi->dev, - "Unable to get the lcd l4f00242t03 data en gpio.\n"); - return PTR_ERR(priv->enable); - } + if (IS_ERR(priv->enable)) + return dev_err_probe(&spi->dev, PTR_ERR(priv->enable), + "Unable to get the lcd l4f00242t03 data en gpio.\n"); gpiod_set_consumer_name(priv->enable, "lcd l4f00242t03 data enable"); priv->io_reg = devm_regulator_get(&spi->dev, "vdd"); - if (IS_ERR(priv->io_reg)) { - dev_err(&spi->dev, "%s: Unable to get the IO regulator\n", - __func__); - return PTR_ERR(priv->io_reg); - } + if (IS_ERR(priv->io_reg)) + return dev_err_probe(&spi->dev, PTR_ERR(priv->io_reg), + "%s: Unable to get the IO regulator\n", + __func__); priv->core_reg = devm_regulator_get(&spi->dev, "vcore"); - if (IS_ERR(priv->core_reg)) { - dev_err(&spi->dev, "%s: Unable to get the core regulator\n", - __func__); - return PTR_ERR(priv->core_reg); - } + if (IS_ERR(priv->core_reg)) + return dev_err_probe(&spi->dev, PTR_ERR(priv->core_reg), + "%s: Unable to get the core regulator\n", + __func__); priv->ld = devm_lcd_device_register(&spi->dev, "l4f00242t03", &spi->dev, priv, &l4f_ops); 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a=openpgp; fpr=9BD07E0E0C51F8D59677B7541B93437D3B41629B Don't pollute dmesg on deferred probe and simplify the code with dev_err_probe(). Reviewed-by: Daniel Thompson Signed-off-by: Krzysztof Kozlowski --- drivers/video/backlight/bd6107.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/video/backlight/bd6107.c b/drivers/video/backlight/bd6107.c index c95a12bf0ce2..b1e7126380ef 100644 --- a/drivers/video/backlight/bd6107.c +++ b/drivers/video/backlight/bd6107.c @@ -119,7 +119,6 @@ static int bd6107_probe(struct i2c_client *client) struct backlight_device *backlight; struct backlight_properties props; struct bd6107 *bd; - int ret; if (pdata == NULL) { dev_err(&client->dev, "No platform data\n"); @@ -147,11 +146,9 @@ static int bd6107_probe(struct i2c_client *client) * the reset. */ bd->reset = devm_gpiod_get(&client->dev, "reset", GPIOD_OUT_HIGH); - if (IS_ERR(bd->reset)) { - dev_err(&client->dev, "unable to request reset GPIO\n"); - ret = PTR_ERR(bd->reset); - return ret; - } + if (IS_ERR(bd->reset)) + return dev_err_probe(&client->dev, PTR_ERR(bd->reset), + "unable to request reset GPIO\n"); 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Tue, 05 Mar 2024 00:12:19 -0800 (PST) From: Krzysztof Kozlowski Date: Tue, 05 Mar 2024 09:11:59 +0100 Subject: [PATCH v2 4/7] backlight: as3711_bl: Handle deferred probe Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240305-backlight-probe-v2-4-609b0cf24bde@linaro.org> References: <20240305-backlight-probe-v2-0-609b0cf24bde@linaro.org> In-Reply-To: <20240305-backlight-probe-v2-0-609b0cf24bde@linaro.org> To: Lee Jones , Daniel Thompson , Jingoo Han , Helge Deller Cc: dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org, Krzysztof Kozlowski X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=openpgp-sha256; l=959; i=krzysztof.kozlowski@linaro.org; h=from:subject:message-id; bh=rLcNWyHrJ59PgQVMQdROdn158veQsUOWpOpARELHPHY=; b=owEBbQKS/ZANAwAKAcE3ZuaGi4PXAcsmYgBl5tPYiTvjPqEeJttKrU7WiswuUE0dpbgygo9ZR 33m9uiM1euJAjMEAAEKAB0WIQTd0mIoPREbIztuuKjBN2bmhouD1wUCZebT2AAKCRDBN2bmhouD 12YgD/9IXBNCquP3bPqgvY8F0d6uhoxY77XF+TciANVjhfSwKpU37EewVGovz0Iqnt6HWaDWN6j F21SWV7MUAEoUrnIsLHKojTKz8CSXamKEGAjPAtUUXOMgjFneB7r1biTAbhkdeLR98b4MUJOdel 816YAtPIwC6d3RgCF19e5h8rGj2fxWNnb/qJTK/DKsNNN8L3m+lczzFyE3aFdcEcW/IrPEFlZ9r M8s6i3GDwbVINPBfSTKmJLYUJyLuyJiohQTgzlU7Nkcp6G2I4ufyiAmZP8/kmMG8w2ZAJ/M3y0e PvQ1z/ZuFfFqLvNZZiuL7IkG5UQJ3FVLtCIsure9tkDLyGUNsHIFutW4dHczc9HvFvi9pVzt6LK 7T6rw/26yrYKfCaBJEGn9zpVaxiAIl2XczCIo3Gz5Aygy/8U4p7y+oUa9qUawoutjLXtTCDbKIt OgbZlnYagsZCtaQGiMG5aFwX586KxBz9a4td3TUSq7L1Osa1d93WVbNetGeaLTTfoB1Rsu0SnSV YgXBWi7SbTL45BS82xRTGDrf+jctkC0oVC1qQELCRTwBzwH6QHUzn8lBPh+mJgViOMMWlqTpblo xumCSjPITNs0L4Yz2T6PqFn/0xK7RlnvQbgPxII4GvtnVm4lCbuJ0yCedULW9uBWchL02hx8wbK R9FlO8clmcCQD2Q== X-Developer-Key: i=krzysztof.kozlowski@linaro.org; a=openpgp; fpr=9BD07E0E0C51F8D59677B7541B93437D3B41629B Don't pollute dmesg on deferred probe and simplify the code with dev_err_probe(). Reviewed-by: Daniel Thompson Signed-off-by: Krzysztof Kozlowski --- drivers/video/backlight/as3711_bl.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/video/backlight/as3711_bl.c b/drivers/video/backlight/as3711_bl.c index 28437c2da0f5..e6f66bb35ef5 100644 --- a/drivers/video/backlight/as3711_bl.c +++ b/drivers/video/backlight/as3711_bl.c @@ -383,10 +383,8 @@ static int as3711_backlight_probe(struct platform_device *pdev) if (pdev->dev.parent->of_node) { ret = as3711_backlight_parse_dt(&pdev->dev); - if (ret < 0) { - dev_err(&pdev->dev, "DT parsing failed: %d\n", ret); - return ret; - } + if (ret < 0) + return dev_err_probe(&pdev->dev, ret, "DT parsing failed\n"); } if (!pdata->su1_fb && !pdata->su2_fb) { From patchwork Tue Mar 5 08:12:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 13581825 Received: from mail-ed1-f54.google.com (mail-ed1-f54.google.com [209.85.208.54]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2228C80034 for ; 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a=openpgp; fpr=9BD07E0E0C51F8D59677B7541B93437D3B41629B Don't pollute dmesg on deferred probe and simplify the code with dev_err_probe(). Reviewed-by: Daniel Thompson Signed-off-by: Krzysztof Kozlowski --- drivers/video/backlight/lm3630a_bl.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/video/backlight/lm3630a_bl.c b/drivers/video/backlight/lm3630a_bl.c index a3412c936ca2..93fd6dbccc28 100644 --- a/drivers/video/backlight/lm3630a_bl.c +++ b/drivers/video/backlight/lm3630a_bl.c @@ -563,10 +563,9 @@ static int lm3630a_probe(struct i2c_client *client) /* pwm */ if (pdata->pwm_ctrl != LM3630A_PWM_DISABLE) { pchip->pwmd = devm_pwm_get(pchip->dev, "lm3630a-pwm"); - if (IS_ERR(pchip->pwmd)) { - dev_err(&client->dev, "fail : get pwm device\n"); - return PTR_ERR(pchip->pwmd); - } + if (IS_ERR(pchip->pwmd)) + return dev_err_probe(&client->dev, PTR_ERR(pchip->pwmd), + "fail : get pwm device\n"); pwm_init_state(pchip->pwmd, &pchip->pwmd_state); } From patchwork Tue Mar 5 08:12:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 13581827 Received: from mail-ed1-f48.google.com (mail-ed1-f48.google.com [209.85.208.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8949880BF0 for ; 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a=openpgp; fpr=9BD07E0E0C51F8D59677B7541B93437D3B41629B Code can be simpler: return directly when devm_gpiod_get_optional() failed. Reviewed-by: Daniel Thompson Signed-off-by: Krzysztof Kozlowski --- drivers/video/backlight/lm3630a_bl.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/video/backlight/lm3630a_bl.c b/drivers/video/backlight/lm3630a_bl.c index 93fd6dbccc28..ac0a60e39e39 100644 --- a/drivers/video/backlight/lm3630a_bl.c +++ b/drivers/video/backlight/lm3630a_bl.c @@ -543,10 +543,8 @@ static int lm3630a_probe(struct i2c_client *client) pchip->enable_gpio = devm_gpiod_get_optional(&client->dev, "enable", GPIOD_OUT_HIGH); - if (IS_ERR(pchip->enable_gpio)) { - rval = PTR_ERR(pchip->enable_gpio); - return rval; - } + if (IS_ERR(pchip->enable_gpio)) + return PTR_ERR(pchip->enable_gpio); /* chip initialize */ rval = lm3630a_chip_init(pchip); From patchwork Tue Mar 5 08:12:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 13581826 Received: from mail-ed1-f52.google.com (mail-ed1-f52.google.com [209.85.208.52]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A22A280BF4 for ; 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a=openpgp; fpr=9BD07E0E0C51F8D59677B7541B93437D3B41629B Core code already prints detailed information about failure of memory allocation. Reviewed-by: Daniel Thompson Signed-off-by: Krzysztof Kozlowski --- drivers/video/backlight/pandora_bl.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/video/backlight/pandora_bl.c b/drivers/video/backlight/pandora_bl.c index f946470ce9f6..51faa889e01f 100644 --- a/drivers/video/backlight/pandora_bl.c +++ b/drivers/video/backlight/pandora_bl.c @@ -114,10 +114,8 @@ static int pandora_backlight_probe(struct platform_device *pdev) u8 r; priv = devm_kmalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); - if (!priv) { - dev_err(&pdev->dev, "failed to allocate driver private data\n"); + if (!priv) return -ENOMEM; - } memset(&props, 0, sizeof(props)); props.max_brightness = MAX_USER_VALUE;