diff mbox series

[v2,02/10] iio: adc: at91-sama5d2_adc: initialize hardware after clock is started

Message ID 20210824115441.681253-3-eugen.hristev@microchip.com
State Accepted
Commit eaefa151f48a3305cf73cbc02890eb63cdb48b16
Headers show
Series iio: adc: at91-sama5d2_adc: add support for sama7g5 | expand

Commit Message

Eugen Hristev Aug. 24, 2021, 11:54 a.m. UTC 
The hw_init hardware init call must happen after the clock is prepared and
enabled. Otherwise, writing to the registers might lead to a block or
external abort.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
---
 drivers/iio/adc/at91-sama5d2_adc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c
index ea5ca163d879..1f4d461c2c18 100644
--- a/drivers/iio/adc/at91-sama5d2_adc.c
+++ b/drivers/iio/adc/at91-sama5d2_adc.c
@@ -1833,12 +1833,12 @@  static int at91_adc_probe(struct platform_device *pdev)
 		goto vref_disable;
 	}
 
-	at91_adc_hw_init(indio_dev);
-
 	ret = clk_prepare_enable(st->per_clk);
 	if (ret)
 		goto vref_disable;
 
+	at91_adc_hw_init(indio_dev);
+
 	platform_set_drvdata(pdev, indio_dev);
 
 	ret = at91_adc_buffer_and_trigger_init(&pdev->dev, indio_dev);