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| author | Claudiu Beznea <claudiu.beznea@microchip.com> | 2022-08-03 13:28:40 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-10-26 14:25:30 +0300 |
| commit | 44ec4b04fc9950678e266f1ad07a4868120fcb7b (patch) | |
| tree | cbd88131accf349d51908dae7e95a9b2fa6a1250 /Documentation/ABI/testing/usb-charger-uevent | |
| parent | 513c72d76df653ab8a15750c3f520a39b514b2dd (diff) | |
| download | linux-44ec4b04fc9950678e266f1ad07a4868120fcb7b.tar.xz | |
iio: adc: at91-sama5d2_adc: disable/prepare buffer on suspend/resume
[ Upstream commit 808175e21d9b7f866eda742e8970f27b78afe5db ]
In case triggered buffers are enabled while system is suspended they will
not work anymore after resume. For this call at91_adc_buffer_postdisable()
on suspend and at91_adc_buffer_prepare() on resume. On tests it has been
seen that at91_adc_buffer_postdisable() call is not necessary but it has
been kept because it also does the book keeping for DMA. On resume path
there is no need to call at91_adc_configure_touch() as it is embedded in
at91_adc_buffer_prepare().
Fixes: 073c662017f2f ("iio: adc: at91-sama5d2_adc: add support for DMA")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220803102855.2191070-5-claudiu.beznea@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'Documentation/ABI/testing/usb-charger-uevent')
0 files changed, 0 insertions, 0 deletions