if (IS_ERR(adc_dev->reg_base))
return PTR_ERR(adc_dev->reg_base);
- adc_dev->adc_clk = devm_clk_get(dev, "adc");
+ adc_dev->adc_clk = devm_clk_get_enabled(dev, "adc");
if (IS_ERR(adc_dev->adc_clk)) {
- dev_err(dev, "failed to get the clock\n");
+ dev_err(dev, "failed to get/enable the clock\n");
return PTR_ERR(adc_dev->adc_clk);
}
- ret = clk_prepare_enable(adc_dev->adc_clk);
- if (ret) {
- dev_err(dev, "failed to enable the clock\n");
- return ret;
- }
-
adc_clk_rate = clk_get_rate(adc_dev->adc_clk);
if (!adc_clk_rate) {
- ret = -EINVAL;
dev_err(dev, "null clock rate!\n");
- goto err_disable_clk;
+ return -EINVAL;
}
adc_dev->eoc_delay_ns = NSEC_PER_SEC / adc_clk_rate;
/* Setup the ADC channels available on the device */
ret = cc10001_adc_channel_init(indio_dev, channel_map);
if (ret < 0)
- goto err_disable_clk;
+ return ret;
mutex_init(&adc_dev->lock);
ret = iio_triggered_buffer_setup(indio_dev, NULL,
&cc10001_adc_trigger_h, NULL);
if (ret < 0)
- goto err_disable_clk;
+ return ret;
ret = iio_device_register(indio_dev);
if (ret < 0)
err_cleanup_buffer:
iio_triggered_buffer_cleanup(indio_dev);
-err_disable_clk:
- clk_disable_unprepare(adc_dev->adc_clk);
return ret;
}
cc10001_adc_power_down(adc_dev);
iio_device_unregister(indio_dev);
iio_triggered_buffer_cleanup(indio_dev);
- clk_disable_unprepare(adc_dev->adc_clk);
return 0;
}