diff options
| author | Fabrice Gasnier <fabrice.gasnier@st.com> | 2020-04-30 11:28:46 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-05-27 17:46:51 +0200 |
| commit | f2da8c0dfe8173c927d1ee06af3a81bebfe07ee7 (patch) | |
| tree | 73ac3a2484a0010217e414c52d85cfd6126557d3 /include/trace | |
| parent | 7b5af65ca246343aee4f06619c0835fa7dedd801 (diff) | |
iio: adc: stm32-dfsdm: fix device used to request dma
[ Upstream commit b455d06e6fb3c035711e8aab1ca18082ccb15d87 ]
DMA channel request should use device struct from platform device struct.
Currently it's using iio device struct. But at this stage when probing,
device struct isn't yet registered (e.g. device_register is done in
iio_device_register). Since commit 71723a96b8b1 ("dmaengine: Create
symlinks between DMA channels and slaves"), a warning message is printed
as the links in sysfs can't be created, due to device isn't yet registered:
- Cannot create DMA slave symlink
- Cannot create DMA dma:rx symlink
Fix this by using device struct from platform device to request dma chan.
Fixes: eca949800d2d ("IIO: ADC: add stm32 DFSDM support for PDM microphone")
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/trace')
0 files changed, 0 insertions, 0 deletions