2012/2/20 Seungwon Jeon <tgih.jun@xxxxxxxxxxx>:
> dw_mci_pre_dma_transfer() is valid only if internal DMA. In case of
> using other DMA it returns -ENOSYS. It prevents the DMA operations.
> This patch makes dw_mci_pre_dma_transfer() effective in all DMA case.
>
> Reported-by: James Hogan <james@xxxxxxxxxxxxx>
> Signed-off-by: Seungwon Jeon <tgih.jun@xxxxxxxxxxx>
Hi. Seungwon.
This patch make sense.
Reviewed-by: Namjae Jeon <linkinjeon@xxxxxxxxx>
> ---
> drivers/mmc/host/dw_mmc.c | 25 +++++++++----------------
> 1 files changed, 9 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
> index 692c3ba..bf3c9b4 100644
> --- a/drivers/mmc/host/dw_mmc.c
> +++ b/drivers/mmc/host/dw_mmc.c
> @@ -429,6 +429,15 @@ static int dw_mci_idmac_init(struct dw_mci *host)
> return 0;
> }
>
> +static struct dw_mci_dma_ops dw_mci_idmac_ops = {
> + .init = dw_mci_idmac_init,
> + .start = dw_mci_idmac_start_dma,
> + .stop = dw_mci_idmac_stop_dma,
> + .complete = dw_mci_idmac_complete_dma,
> + .cleanup = dw_mci_dma_cleanup,
> +};
> +#endif /* CONFIG_MMC_DW_IDMAC */
> +
> static int dw_mci_pre_dma_transfer(struct dw_mci *host,
> struct mmc_data *data,
> bool next)
> @@ -468,22 +477,6 @@ static int dw_mci_pre_dma_transfer(struct dw_mci *host,
> return sg_len;
> }
>
> -static struct dw_mci_dma_ops dw_mci_idmac_ops = {
> - .init = dw_mci_idmac_init,
> - .start = dw_mci_idmac_start_dma,
> - .stop = dw_mci_idmac_stop_dma,
> - .complete = dw_mci_idmac_complete_dma,
> - .cleanup = dw_mci_dma_cleanup,
> -};
> -#else
> -static int dw_mci_pre_dma_transfer(struct dw_mci *host,
> - struct mmc_data *data,
> - bool next)
> -{
> - return -ENOSYS;
> -}
> -#endif /* CONFIG_MMC_DW_IDMAC */
> -
> static void dw_mci_pre_req(struct mmc_host *mmc,
> struct mmc_request *mrq,
> bool is_first_req)
> --
> 1.7.0.4
>
>
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