diff options
| author | Arend Van Spriel <arend.vanspriel@broadcom.com> | 2017-05-26 13:02:55 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2017-06-01 12:02:02 +0300 |
| commit | 1dbf647f31751a4e94fa0435c34f0f5ad5ce0adc (patch) | |
| tree | 45f8b91fa910e1e60bbeedfce1b836a6baa7f724 /drivers/dma/virt-dma.c | |
| parent | efad8396e906d095521791e0408293c101543e50 (diff) | |
brcmfmac: fix alignment configuration on host using 64-bit DMA
For SDIO the alignment requirement for transfers from device to host
is configured in firmware. This configuration is limited to minimum
of 4-byte alignment. However, this is not correct for platforms using
64-bit DMA when the minimum alignment should be 8 bytes. This issue
appeared when the ALIGNMENT definition was set according the DMA
configuration. The configuration in firmware was not using that macro
defintion, but a hardcoded value of 4. Hence the driver reported
alignment failures for data coming from the device and causing
transfers to fail.
Fixes: 6e84ab604bde ("brcmfmac: properly align buffers on certain platforms
Reported-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/dma/virt-dma.c')
0 files changed, 0 insertions, 0 deletions