mmc: tmio: add callback for dma irq

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>
Tested-by: Duy Nguyen <duy.nguyen.rh@renesas.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20221006190452.5316-4-wsa+renesas@sang-engineering.comSigned-off-by: Ulf Hansson <ulf.hansson@linaro.org>

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 {

drivers/mmc/host/tmio_mmc_core.c

@@ -668,6 +668,9 @@ 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;
 }