iio: adc: rockchip: Fix clock initialization sequence

clock_set_rate should be executed after devm_clk_get_enabled.

Fixes: 97ad10b ("iio: adc: rockchip_saradc: Make use of devm_clk_get_enabled")
Signed-off-by: Simon Xue <xxm@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20250312062016.137821-1-xxm@rock-chips.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Author: Simon Xue

drivers/iio/adc/rockchip_saradc.c

@@ -520,15 +520,6 @@ static int rockchip_saradc_probe(struct platform_device *pdev)
 	if (info->reset)
 		rockchip_saradc_reset_controller(info->reset);
 
-	/*
-	 * Use a default value for the converter clock.
-	 * This may become user-configurable in the future.
-	 */
-	ret = clk_set_rate(info->clk, info->data->clk_rate);
-	if (ret < 0)
-		return dev_err_probe(&pdev->dev, ret,
-				     "failed to set adc clk rate\n");
-
 	ret = regulator_enable(info->vref);
 	if (ret < 0)
 		return dev_err_probe(&pdev->dev, ret,
@@ -555,6 +546,14 @@ static int rockchip_saradc_probe(struct platform_device *pdev)
 	if (IS_ERR(info->clk))
 		return dev_err_probe(&pdev->dev, PTR_ERR(info->clk),
 				     "failed to get adc clock\n");
+	/*
+	 * Use a default value for the converter clock.
+	 * This may become user-configurable in the future.
+	 */
+	ret = clk_set_rate(info->clk, info->data->clk_rate);
+	if (ret < 0)
+		return dev_err_probe(&pdev->dev, ret,
+				     "failed to set adc clk rate\n");
 
 	platform_set_drvdata(pdev, indio_dev);