[PATCH] mci: dw_mmc: set dma mask to work correctly on 64bit platforms

[Ahmad Fatoum]

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 <s.hauer at pengutronix.de>
> ---
>  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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