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mmc: tmio: add .enable_dma on tmio_mmc_dma 

Some controllers need DMA special register/setting.
This patch adds new .enable_dma callback for it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Kuninori Morimoto 2015-01-13 04:59:05 +00:00 committed by Ulf Hansson
parent 8b4c8f32da
commit 5add2aca3a
2 changed files with 5 additions and 0 deletions
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2
drivers/mmc/host/tmio_mmc.h
View File

@ -39,6 +39,7 @@
#define TMIO_MASK_IRQ (TMIO_MASK_READOP | TMIO_MASK_WRITEOP | TMIO_MASK_CMD)
struct tmio_mmc_data;
struct tmio_mmc_host;
struct tmio_mmc_dma {
void *chan_priv_tx;
@ -46,6 +47,7 @@ struct tmio_mmc_dma {
int slave_id_tx;
int slave_id_rx;
bool (*filter)(struct dma_chan *chan, void *arg);
void (*enable)(struct tmio_mmc_host *host, bool enable);
};
struct tmio_mmc_host {

3
drivers/mmc/host/tmio_mmc_dma.c
View File

@ -30,6 +30,9 @@ void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable)
if (host->pdata->flags & TMIO_MMC_HAVE_CTL_DMA_REG)
sd_ctrl_write16(host, CTL_DMA_ENABLE, enable ? 2 : 0);
if (host->dma->enable)
host->dma->enable(host, enable);
}
void tmio_mmc_abort_dma(struct tmio_mmc_host *host)