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iio: adc: ingenic-adc: Benefit from devm_clk_get_prepared() to simplify 

Make use of devm_clk_get_prepared() 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/20220808204740.307667-4-u.kleine-koenig@pengutronix.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Uwe Kleine-König 2022-08-08 22:47:31 +02:00 committed by Jonathan Cameron
parent cdd07b3ab9
commit 51f2f910a5
1 changed files with 2 additions and 13 deletions
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15
drivers/iio/adc/ingenic-adc.c
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@ -734,11 +734,6 @@ static int ingenic_adc_fwnode_xlate(struct iio_dev *iio_dev,
return -EINVAL;
}
static void ingenic_adc_clk_cleanup(void *data)
{
clk_unprepare(data);
}
static const struct iio_info ingenic_adc_info = {
.write_raw = ingenic_adc_write_raw,
.read_raw = ingenic_adc_read_raw,
@ -858,13 +853,13 @@ static int ingenic_adc_probe(struct platform_device *pdev)
if (IS_ERR(adc->base))
return PTR_ERR(adc->base);
adc->clk = devm_clk_get(dev, "adc");
adc->clk = devm_clk_get_prepared(dev, "adc");
if (IS_ERR(adc->clk)) {
dev_err(dev, "Unable to get clock\n");
return PTR_ERR(adc->clk);
}
ret = clk_prepare_enable(adc->clk);
ret = clk_enable(adc->clk);
if (ret) {
dev_err(dev, "Failed to enable clock\n");
return ret;
@ -893,12 +888,6 @@ static int ingenic_adc_probe(struct platform_device *pdev)
usleep_range(2000, 3000); /* Must wait at least 2ms. */
clk_disable(adc->clk);
ret = devm_add_action_or_reset(dev, ingenic_adc_clk_cleanup, adc->clk);
if (ret) {
dev_err(dev, "Unable to add action\n");
return ret;
}
iio_dev->name = "jz-adc";
iio_dev->modes = INDIO_DIRECT_MODE | INDIO_BUFFER_SOFTWARE;
iio_dev->setup_ops = &ingenic_buffer_setup_ops;