hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

spi: img-spfi: Enable controller before starting TX DMA 

It is recommended that the SPFI controller be enabled (i.e. setting
SPFI_EN in SPFI_CONTROL) before TX DMA begins.

Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Andrew Bresticker 2014-12-16 13:05:44 -08:00 committed by Mark Brown
parent 97bf6af1f9
commit c0e7dc21d3
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/spi/spi-img-spfi.c
View File

@ -390,14 +390,14 @@ static int img_spfi_start_dma(struct spi_master *master,
dma_async_issue_pending(spfi->rx_ch);
}
spfi_start(spfi);
if (xfer->tx_buf) {
spfi->tx_dma_busy = true;
dmaengine_submit(txdesc);
dma_async_issue_pending(spfi->tx_ch);
}
spfi_start(spfi);
return 1;
stop_dma: