From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
Some controllers need DMA special register/setting.
This patch adds new .enable_dma callback for it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
---
drivers/mmc/host/tmio_mmc_dma.c | 3 +++
include/linux/mfd/tmio.h | 4 ++--
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/tmio_mmc_dma.c b/drivers/mmc/host/tmio_mmc_dma.c
index 7d07738..f0bf6df 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->pdata->dma->enable)
+ host->pdata->dma->enable(host, enable);
}
void tmio_mmc_abort_dma(struct tmio_mmc_host *host)
diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h
index 5738817..6788f9b 100644
--- a/include/linux/mfd/tmio.h
+++ b/include/linux/mfd/tmio.h
@@ -111,6 +111,7 @@ void tmio_core_mmc_pwr(void __iomem *cnf, int shift, int state);
void tmio_core_mmc_clk_div(void __iomem *cnf, int shift, int state);
struct dma_chan;
+struct tmio_mmc_host;
struct tmio_mmc_dma {
void *chan_priv_tx;
@@ -120,10 +121,9 @@ struct tmio_mmc_dma {
int alignment_shift;
dma_addr_t dma_rx_offset;
bool (*filter)(struct dma_chan *chan, void *arg);
+ void (*enable)(struct tmio_mmc_host *host, bool enable);
};
-struct tmio_mmc_host;
-
/*
* data for the MMC controller
*/
--
1.7.9.5
--
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