diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2015-01-13 07:59:05 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2015-01-20 12:23:16 +0300 |
| commit | 5add2aca3a8555a01f5e43b6f524df6fae8fffa5 (patch) | |
| tree | ba8f577131bcd536286f03ddc428467f3628d736 /drivers/mmc | |
| parent | 8b4c8f32da91681c0dcd321c9e3cd14f866c5517 (diff) | |
| download | linux-5add2aca3a8555a01f5e43b6f524df6fae8fffa5.tar.xz | |
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>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/tmio_mmc.h | 2 | ||||
| -rw-r--r-- | drivers/mmc/host/tmio_mmc_dma.c | 3 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h index c9a84695cff2..0699edb437c4 100644 --- a/drivers/mmc/host/tmio_mmc.h +++ b/drivers/mmc/host/tmio_mmc.h @@ -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 { diff --git a/drivers/mmc/host/tmio_mmc_dma.c b/drivers/mmc/host/tmio_mmc_dma.c index 634b2700cb77..eb6b45cdb7ef 100644 --- a/drivers/mmc/host/tmio_mmc_dma.c +++ b/drivers/mmc/host/tmio_mmc_dma.c @@ -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) |