A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 19:51:31 -04:00
Code Issues Projects Releases Packages Wiki Activity

spi-topcliff-pch: add tx-memory clear after complete transmitting

Browse source 
Currently, in case of reading date from SPI flash,
command is sent twice.
The cause is that tx-memory clear processing is missing .
This patch adds the tx-momory clear processing.

Signed-off-by: Tomoya MORINAGA <[email protected]>
Signed-off-by: Grant Likely <[email protected]>
This commit is contained in:
Tomoya MORINAGA 2011-09-06 17:16:34 +09:00 • committed by Grant Likely
commit 27504be5c1
1 changed files with 5 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

5
drivers/spi/spi-topcliff-pch.c
View file

@ -837,6 +837,11 @@ static void pch_spi_start_transfer(struct pch_spi_data *data)
dma_sync_sg_for_cpu(&data->master->dev, dma->sg_rx_p, dma->nent,
DMA_FROM_DEVICE);
dma_sync_sg_for_cpu(&data->master->dev, dma->sg_tx_p, dma->nent,
DMA_FROM_DEVICE);
memset(data->dma.tx_buf_virt, 0, PAGE_SIZE);
async_tx_ack(dma->desc_rx);
async_tx_ack(dma->desc_tx);
kfree(dma->sg_tx_p);