[PATCH RFC 3/6] mmc: tmio: add callback for dma irq

[Wolfram Sang <wsa+renesas@sang-engineering.com>]

We don't want to rely only on the access_end irq in the future, so
implement a callback for dma irqs.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
 drivers/mmc/host/tmio_mmc.h      | 1 +
 drivers/mmc/host/tmio_mmc_core.c | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index 501613c74406..873a06a179c8 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -128,6 +128,7 @@ struct tmio_mmc_dma_ops {
 
 	/* optional */
 	void (*end)(struct tmio_mmc_host *host);	/* held host->lock */
+	bool (*dma_irq)(struct tmio_mmc_host *host);
 };
 
 struct tmio_mmc_host {
diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c
index 437048bb8027..a73422382a57 100644
--- a/drivers/mmc/host/tmio_mmc_core.c
+++ b/drivers/mmc/host/tmio_mmc_core.c
@@ -670,6 +670,9 @@ static bool __tmio_mmc_sdcard_irq(struct tmio_mmc_host *host, int ireg,
 		return true;
 	}
 
+	if (host->dma_ops && host->dma_ops->dma_irq && host->dma_ops->dma_irq(host))
+		return true;
+
 	return false;
 }
 
-- 
2.35.1