From: Jinjie Ruan <ruanjinjie@huawei.com> To: <jic23@kernel.org>, <lars@metafoo.de>, <nicolas.ferre@microchip.com>, <alexandre.belloni@bootlin.com>, <claudiu.beznea@tuxon.dev>, <matthias.bgg@gmail.com>, <angelogioacchino.delregno@collabora.com>, <Michael.Hennerich@analog.com>, <heiko@sntech.de>, <yangyingliang@huawei.com>, <robh@kernel.org>, <linux-iio@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, <linux-mediatek@lists.infradead.org> Cc: <ruanjinjie@huawei.com> Subject: [PATCH -next 2/4] iio: adc: mt6577_auxadc: Use devm_clk_get_enabled() helper function Date: Fri, 25 Aug 2023 18:57:44 +0800 [thread overview] Message-ID: <20230825105746.2999548-3-ruanjinjie@huawei.com> (raw) In-Reply-To: <20230825105746.2999548-1-ruanjinjie@huawei.com> The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code. Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> --- drivers/iio/adc/mt6577_auxadc.c | 17 +++-------------- 1 file changed, 3 insertions(+), 14 deletions(-) diff --git a/drivers/iio/adc/mt6577_auxadc.c b/drivers/iio/adc/mt6577_auxadc.c index 0e134777bdd2..ea42fd7a8c99 100644 --- a/drivers/iio/adc/mt6577_auxadc.c +++ b/drivers/iio/adc/mt6577_auxadc.c @@ -270,23 +270,16 @@ static int mt6577_auxadc_probe(struct platform_device *pdev) return PTR_ERR(adc_dev->reg_base); } - adc_dev->adc_clk = devm_clk_get(&pdev->dev, "main"); + adc_dev->adc_clk = devm_clk_get_enabled(&pdev->dev, "main"); if (IS_ERR(adc_dev->adc_clk)) { - dev_err(&pdev->dev, "failed to get auxadc clock\n"); - return PTR_ERR(adc_dev->adc_clk); - } - - ret = clk_prepare_enable(adc_dev->adc_clk); - if (ret) { dev_err(&pdev->dev, "failed to enable auxadc clock\n"); - return ret; + return PTR_ERR(adc_dev->adc_clk); } adc_clk_rate = clk_get_rate(adc_dev->adc_clk); if (!adc_clk_rate) { - ret = -EINVAL; dev_err(&pdev->dev, "null clock rate\n"); - goto err_disable_clk; + return -EINVAL; } adc_dev->dev_comp = device_get_match_data(&pdev->dev); @@ -310,8 +303,6 @@ static int mt6577_auxadc_probe(struct platform_device *pdev) err_power_off: mt6577_auxadc_mod_reg(adc_dev->reg_base + MT6577_AUXADC_MISC, 0, MT6577_AUXADC_PDN_EN); -err_disable_clk: - clk_disable_unprepare(adc_dev->adc_clk); return ret; } @@ -325,8 +316,6 @@ static int mt6577_auxadc_remove(struct platform_device *pdev) mt6577_auxadc_mod_reg(adc_dev->reg_base + MT6577_AUXADC_MISC, 0, MT6577_AUXADC_PDN_EN); - clk_disable_unprepare(adc_dev->adc_clk); - return 0; } -- 2.34.1
WARNING: multiple messages have this Message-ID (diff)
From: Jinjie Ruan <ruanjinjie@huawei.com> To: <jic23@kernel.org>, <lars@metafoo.de>, <nicolas.ferre@microchip.com>, <alexandre.belloni@bootlin.com>, <claudiu.beznea@tuxon.dev>, <matthias.bgg@gmail.com>, <angelogioacchino.delregno@collabora.com>, <Michael.Hennerich@analog.com>, <heiko@sntech.de>, <yangyingliang@huawei.com>, <robh@kernel.org>, <linux-iio@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, <linux-mediatek@lists.infradead.org> Cc: <ruanjinjie@huawei.com> Subject: [PATCH -next 2/4] iio: adc: mt6577_auxadc: Use devm_clk_get_enabled() helper function Date: Fri, 25 Aug 2023 18:57:44 +0800 [thread overview] Message-ID: <20230825105746.2999548-3-ruanjinjie@huawei.com> (raw) In-Reply-To: <20230825105746.2999548-1-ruanjinjie@huawei.com> The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code. Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> --- drivers/iio/adc/mt6577_auxadc.c | 17 +++-------------- 1 file changed, 3 insertions(+), 14 deletions(-) diff --git a/drivers/iio/adc/mt6577_auxadc.c b/drivers/iio/adc/mt6577_auxadc.c index 0e134777bdd2..ea42fd7a8c99 100644 --- a/drivers/iio/adc/mt6577_auxadc.c +++ b/drivers/iio/adc/mt6577_auxadc.c @@ -270,23 +270,16 @@ static int mt6577_auxadc_probe(struct platform_device *pdev) return PTR_ERR(adc_dev->reg_base); } - adc_dev->adc_clk = devm_clk_get(&pdev->dev, "main"); + adc_dev->adc_clk = devm_clk_get_enabled(&pdev->dev, "main"); if (IS_ERR(adc_dev->adc_clk)) { - dev_err(&pdev->dev, "failed to get auxadc clock\n"); - return PTR_ERR(adc_dev->adc_clk); - } - - ret = clk_prepare_enable(adc_dev->adc_clk); - if (ret) { dev_err(&pdev->dev, "failed to enable auxadc clock\n"); - return ret; + return PTR_ERR(adc_dev->adc_clk); } adc_clk_rate = clk_get_rate(adc_dev->adc_clk); if (!adc_clk_rate) { - ret = -EINVAL; dev_err(&pdev->dev, "null clock rate\n"); - goto err_disable_clk; + return -EINVAL; } adc_dev->dev_comp = device_get_match_data(&pdev->dev); @@ -310,8 +303,6 @@ static int mt6577_auxadc_probe(struct platform_device *pdev) err_power_off: mt6577_auxadc_mod_reg(adc_dev->reg_base + MT6577_AUXADC_MISC, 0, MT6577_AUXADC_PDN_EN); -err_disable_clk: - clk_disable_unprepare(adc_dev->adc_clk); return ret; } @@ -325,8 +316,6 @@ static int mt6577_auxadc_remove(struct platform_device *pdev) mt6577_auxadc_mod_reg(adc_dev->reg_base + MT6577_AUXADC_MISC, 0, MT6577_AUXADC_PDN_EN); - clk_disable_unprepare(adc_dev->adc_clk); - return 0; } -- 2.34.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2023-08-25 10:58 UTC|newest] Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-08-25 10:57 [PATCH -next 0/4] iio: Use devm_clk_get_enabled() helper function Jinjie Ruan 2023-08-25 10:57 ` Jinjie Ruan 2023-08-25 10:57 ` [PATCH -next 1/4] iio: adc: at91_adc: " Jinjie Ruan 2023-08-25 10:57 ` Jinjie Ruan 2023-08-25 12:50 ` Jonathan Cameron 2023-08-25 12:50 ` Jonathan Cameron 2023-08-26 2:02 ` Ruan Jinjie 2023-08-26 2:02 ` Ruan Jinjie 2023-08-25 10:57 ` Jinjie Ruan [this message] 2023-08-25 10:57 ` [PATCH -next 2/4] iio: adc: mt6577_auxadc: " Jinjie Ruan 2023-08-25 12:54 ` Jonathan Cameron 2023-08-25 12:54 ` Jonathan Cameron 2023-08-26 2:37 ` Ruan Jinjie 2023-08-26 2:37 ` Ruan Jinjie 2023-08-25 10:57 ` [PATCH -next 3/4] iio: adc: spear_adc: " Jinjie Ruan 2023-08-25 10:57 ` Jinjie Ruan 2023-08-25 12:55 ` Jonathan Cameron 2023-08-25 12:55 ` Jonathan Cameron 2023-08-25 10:57 ` [PATCH -next 4/4] iio: frequency: adf4350: " Jinjie Ruan 2023-08-25 10:57 ` Jinjie Ruan 2023-08-25 12:57 ` Jonathan Cameron 2023-08-25 12:57 ` Jonathan Cameron
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