Use devm_of_platform_populate() instead of of_platform_populate and
of_platform_depopulate to simplify driver code

Signed-off-by: Benjamin Gaignard <benjamin.gaign...@linaro.org>

CC: Jonathan Cameron <ji...@kernel.org>
CC: Hartmut Knaack <knaac...@gmx.de>
CC: Lars-Peter Clausen <l...@metafoo.de>
CC: Alexandre Torgue <alexandre.tor...@st.com>
CC: Fabrice Gasnier <fabrice.gasn...@st.com>
CC: linux-...@vger.kernel.org
CC: linux-arm-ker...@lists.infradead.org
CC: linux-kernel@vger.kernel.org
---
 drivers/iio/adc/stm32-adc-core.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/iio/adc/stm32-adc-core.c b/drivers/iio/adc/stm32-adc-core.c
index 22b7c93..46e41dc5 100644
--- a/drivers/iio/adc/stm32-adc-core.c
+++ b/drivers/iio/adc/stm32-adc-core.c
@@ -186,7 +186,6 @@ static void stm32_adc_irq_remove(struct platform_device 
*pdev,
 static int stm32_adc_probe(struct platform_device *pdev)
 {
        struct stm32_adc_priv *priv;
-       struct device_node *np = pdev->dev.of_node;
        struct resource *res;
        int ret;
 
@@ -249,7 +248,7 @@ static int stm32_adc_probe(struct platform_device *pdev)
 
        platform_set_drvdata(pdev, &priv->common);
 
-       ret = of_platform_populate(np, NULL, NULL, &pdev->dev);
+       ret = devm_of_platform_populate(&pdev->dev);
        if (ret < 0) {
                dev_err(&pdev->dev, "failed to populate DT children\n");
                goto err_irq_remove;
@@ -274,7 +273,6 @@ static int stm32_adc_remove(struct platform_device *pdev)
        struct stm32_adc_common *common = platform_get_drvdata(pdev);
        struct stm32_adc_priv *priv = to_stm32_adc_priv(common);
 
-       of_platform_depopulate(&pdev->dev);
        stm32_adc_irq_remove(pdev, priv);
        clk_disable_unprepare(priv->aclk);
        regulator_disable(priv->vref);
-- 
1.9.1

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