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[10/17] mmc: tmio: add .enable_dma on tmio_mmc_data

Message ID 87fvbfuvgd.wl%kuninori.morimoto.gx@renesas.com (mailing list archive)
State Not Applicable
Delegated to: Geert Uytterhoeven
Headers show

Commit Message

Kuninori Morimoto Jan. 13, 2015, 4:59 a.m. UTC 
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

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>
---
 drivers/mmc/host/tmio_mmc.h     |    2 ++
 drivers/mmc/host/tmio_mmc_dma.c |    3 +++
 2 files changed, 5 insertions(+)
diff mbox

Patch

diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index c9a8469..0699edb 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 634b2700c..eb6b45c 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)