diff mbox

[v5,5/9] dmaengine: rcar-dmac: slave address are physical

Message ID 1457404974-1800-6-git-send-email-niklas.soderlund+renesas@ragnatech.se (mailing list archive)
State New, archived
Headers show

Commit Message

Niklas Söderlund March 8, 2016, 2:42 a.m. UTC
Slave addresses coming from a client is physical not dma. Store the
address using the correct data type. This is in preparation for hooking
up the dma-mapping API to the slave addresses.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
---
 drivers/dma/sh/rcar-dmac.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Laurent Pinchart March 17, 2016, 11:30 a.m. UTC | #1
Hi Niklas,

Thank you for the patch.

On Tuesday 08 March 2016 03:42:50 Niklas Söderlund wrote:
> Slave addresses coming from a client is physical not dma. Store the
> address using the correct data type. This is in preparation for hooking
> up the dma-mapping API to the slave addresses.
> 
> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
> ---
>  drivers/dma/sh/rcar-dmac.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
> index 7820d07..01cf82f 100644
> --- a/drivers/dma/sh/rcar-dmac.c
> +++ b/drivers/dma/sh/rcar-dmac.c
> @@ -144,8 +144,8 @@ struct rcar_dmac_chan {
> 
>  	unsigned int src_xfer_size;
>  	unsigned int dst_xfer_size;
> -	dma_addr_t src_slave_addr;
> -	dma_addr_t dst_slave_addr;
> +	phys_addr_t src_slave_addr;
> +	phys_addr_t dst_slave_addr;

This moves the cast from phys_addr_t to dma_addr_t from the driver's DMA 
engine operations to other places. I'm not sure there's much value in doing 
so. I'd squash this patch with 7/9, the result will be easier to review.

>  	int mid_rid;
> 
>  	spinlock_t lock;
diff mbox

Patch

diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index 7820d07..01cf82f 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -144,8 +144,8 @@  struct rcar_dmac_chan {
 
 	unsigned int src_xfer_size;
 	unsigned int dst_xfer_size;
-	dma_addr_t src_slave_addr;
-	dma_addr_t dst_slave_addr;
+	phys_addr_t src_slave_addr;
+	phys_addr_t dst_slave_addr;
 	int mid_rid;
 
 	spinlock_t lock;