raspi/linux
1
0
Fork 1
mirror of https://github.com/raspberrypi/linux.git synced 2025-12-06 10:00:17 +00:00
Code Issues Projects Releases Wiki Activity

bcm2835-mmc: Fix DMA usage

Browse Source 
The previous change ("bcm2835-mmc: Only claim one DMA channel")
used an incorrect variable, the effect of which was to prevent
DMA from being used at all. Fix that bug by using the right
variable.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
This commit is contained in:
Phil Elwell
2017-07-14 12:59:55 +01:00
parent 1ee0a81110
commit cfa29b46af
1 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/mmc/host/bcm2835-mmc.c
View File

@@ -1354,14 +1354,14 @@ static int bcm2835_mmc_add_host(struct bcm2835_host *host)
if (ret == 0) {
host->dma_cfg_rx = cfg;
host->use_dma = true;
host->have_dma = true;
} else {
pr_err("%s: unable to configure DMA channel. "
"Faling back to PIO\n",
"Falling back to PIO\n",
mmc_hostname(mmc));
dma_release_channel(host->dma_chan_rxtx);
host->dma_chan_rxtx = NULL;
host->use_dma = false;
host->have_dma = false;
}
}
#endif