iio: adc: ti-ads131e08: Benefit from devm_clk_get_enabled() to simplify

Make use of devm_clk_get_enabled() to replace some code that effectively
open codes this new function.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20220808204740.307667-7-u.kleine-koenig@pengutronix.deSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/adc/ti-ads131e08.c

@@ -797,13 +797,6 @@ static void ads131e08_regulator_disable(void *data)
 	regulator_disable(st->vref_reg);
 }
 
-static void ads131e08_clk_disable(void *data)
-{
-	struct ads131e08_state *st = data;
-
-	clk_disable_unprepare(st->adc_clk);
-}
-
 static int ads131e08_probe(struct spi_device *spi)
 {
 	const struct ads131e08_info *info;
@@ -896,21 +889,11 @@ static int ads131e08_probe(struct spi_device *spi)
 		st->vref_reg = NULL;
 	}
 
-	st->adc_clk = devm_clk_get(&spi->dev, "adc-clk");
+	st->adc_clk = devm_clk_get_enabled(&spi->dev, "adc-clk");
 	if (IS_ERR(st->adc_clk))
 		return dev_err_probe(&spi->dev, PTR_ERR(st->adc_clk),
 				     "failed to get the ADC clock\n");
 
-	ret = clk_prepare_enable(st->adc_clk);
-	if (ret) {
-		dev_err(&spi->dev, "failed to prepare/enable the ADC clock\n");
-		return ret;
-	}
-
-	ret = devm_add_action_or_reset(&spi->dev, ads131e08_clk_disable, st);
-	if (ret)
-		return ret;
-
 	adc_clk_hz = clk_get_rate(st->adc_clk);
 	if (!adc_clk_hz) {
 		dev_err(&spi->dev, "failed to get the ADC clock rate\n");