diff options
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/uniphier-sd.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/mmc/host/uniphier-sd.c b/drivers/mmc/host/uniphier-sd.c index df854a33c81c..91a2be41edf6 100644 --- a/drivers/mmc/host/uniphier-sd.c +++ b/drivers/mmc/host/uniphier-sd.c @@ -252,6 +252,9 @@ static void uniphier_sd_internal_dma_start(struct tmio_mmc_host *host, u32 dma_mode; int sg_len; + if ((data->flags & MMC_DATA_READ) && !host->chan_rx) + goto force_pio; + if (WARN_ON(host->sg_len != 1)) goto force_pio; |