On 10.06.21 15:10, Sascha Hauer wrote:
> The variant we support currently can only do 32bit DMA. Adjust dma mask
> accordingly. Also use dma_map_single() rather than dma_sync_single() to
> actually get errors when the mapping fails.
>
> Signed-off-by: Sascha Hauer <[email protected]>
> ---
> drivers/mci/dw_mmc.c | 53 ++++++++++++++++++++++++++------------------
> 1 file changed, 31 insertions(+), 22 deletions(-)
> static int dwmci_set_transfer_mode(struct dwmci_host *host,
> @@ -272,6 +271,7 @@ dwmci_cmd(struct mci_host *mci, struct mci_cmd *cmd,
> struct mci_data *data)
> uint64_t start;
> int ret;
> unsigned int num_bytes = 0;
> + dma_addr_t dma = 0;
>
> start = get_time_ns();
> while (1) {
> @@ -287,16 +287,20 @@ dwmci_cmd(struct mci_host *mci, struct mci_cmd *cmd,
> struct mci_data *data)
> dwmci_writel(host, DWMCI_RINTSTS, DWMCI_INTMSK_ALL);
>
> if (data) {
> +
stray new line
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