iio: adc: stm32: fix stm32h7_adc_enable error handling

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Error handling in stm32h7_adc_enable routine doesn't unwind enable
sequence correctly. ADEN can only be cleared by hardware (e.g. by
writing one to ADDIS).
It's also better to clear ADRDY just after it's been set by hardware.

Fixes: 95e339b6e8 ("iio: adc: stm32: add support for STM32H7")

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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Fabrice Gasnier 2018-01-23 17:04:56 +01:00 • committed by Jonathan Cameron

parent e31b617d0a

commit a3b5655ebd

1 changed files with 4 additions and 3 deletions

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drivers/iio/adc/stm32-adc.c

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