diff mbox

[2/8,v2] mmc: sh_mmcif: remove slave_id settings for DMAEngine

Message ID 87iog2axxx.wl%kuninori.morimoto.gx@renesas.com (mailing list archive)
State Superseded
Headers show

Commit Message

Kuninori Morimoto Jan. 20, 2015, 4:15 a.m. UTC
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

Current sh_mmcif sets dma_slave_config :: slave_id field for DMAEngine,
but it is no longer needed. Let's remove it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
v1 -> v2

 - separate into shdma and others

 drivers/mmc/host/sh_mmcif.c |   12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

Comments

Ulf Hansson Jan. 20, 2015, 10:15 a.m. UTC | #1
On 20 January 2015 at 05:15, Kuninori Morimoto
<kuninori.morimoto.gx@renesas.com> wrote:
> From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
>
> Current sh_mmcif sets dma_slave_config :: slave_id field for DMAEngine,
> but it is no longer needed. Let's remove it.
>
> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
> ---
> v1 -> v2
>
>  - separate into shdma and others
>
>  drivers/mmc/host/sh_mmcif.c |   12 +++++-------
>  1 file changed, 5 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
> index 7d9d6a3..5f1ba9c 100644
> --- a/drivers/mmc/host/sh_mmcif.c
> +++ b/drivers/mmc/host/sh_mmcif.c
> @@ -388,7 +388,7 @@ sh_mmcif_request_dma_one(struct sh_mmcif_host *host,
>  {
>         struct dma_slave_config cfg = { 0, };
>         struct dma_chan *chan;
> -       unsigned int slave_id;
> +       void *slave_data;
>         struct resource *res;
>         dma_cap_mask_t mask;
>         int ret;
> @@ -397,13 +397,13 @@ sh_mmcif_request_dma_one(struct sh_mmcif_host *host,
>         dma_cap_set(DMA_SLAVE, mask);
>
>         if (pdata)
> -               slave_id = direction == DMA_MEM_TO_DEV
> -                        ? pdata->slave_id_tx : pdata->slave_id_rx;
> +               slave_data = direction == DMA_MEM_TO_DEV
> +                       ? (void *)pdata->slave_id_tx : (void *)pdata->slave_id_rx;
>         else

You may get rid of this else clause. Just assign slave_data to NULL
while declaring it above.

> -               slave_id = 0;
> +               slave_data = 0;
>
>         chan = dma_request_slave_channel_compat(mask, shdma_chan_filter,
> -                               (void *)(unsigned long)slave_id, &host->pd->dev,
> +                               slave_data, &host->pd->dev,
>                                 direction == DMA_MEM_TO_DEV ? "tx" : "rx");
>
>         dev_dbg(&host->pd->dev, "%s: %s: got channel %p\n", __func__,
> @@ -414,8 +414,6 @@ sh_mmcif_request_dma_one(struct sh_mmcif_host *host,
>
>         res = platform_get_resource(host->pd, IORESOURCE_MEM, 0);
>
> -       /* In the OF case the driver will get the slave ID from the DT */
> -       cfg.slave_id = slave_id;
>         cfg.direction = direction;
>
>         if (direction == DMA_DEV_TO_MEM) {
> --
> 1.7.9.5
>

Kind regards
Uffe
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Kuninori Morimoto Jan. 21, 2015, 1:27 a.m. UTC | #2
Hi Ulf

> > @@ -397,13 +397,13 @@ sh_mmcif_request_dma_one(struct sh_mmcif_host *host,
> >         dma_cap_set(DMA_SLAVE, mask);
> >
> >         if (pdata)
> > -               slave_id = direction == DMA_MEM_TO_DEV
> > -                        ? pdata->slave_id_tx : pdata->slave_id_rx;
> > +               slave_data = direction == DMA_MEM_TO_DEV
> > +                       ? (void *)pdata->slave_id_tx : (void *)pdata->slave_id_rx;
> >         else
> 
> You may get rid of this else clause. Just assign slave_data to NULL
> while declaring it above.
> 
> > -               slave_id = 0;
> > +               slave_data = 0;

Thank you
Will fix in v2 patch

Best regards
---
Kuninori Morimoto
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diff mbox

Patch

diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index 7d9d6a3..5f1ba9c 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -388,7 +388,7 @@  sh_mmcif_request_dma_one(struct sh_mmcif_host *host,
 {
 	struct dma_slave_config cfg = { 0, };
 	struct dma_chan *chan;
-	unsigned int slave_id;
+	void *slave_data;
 	struct resource *res;
 	dma_cap_mask_t mask;
 	int ret;
@@ -397,13 +397,13 @@  sh_mmcif_request_dma_one(struct sh_mmcif_host *host,
 	dma_cap_set(DMA_SLAVE, mask);
 
 	if (pdata)
-		slave_id = direction == DMA_MEM_TO_DEV
-			 ? pdata->slave_id_tx : pdata->slave_id_rx;
+		slave_data = direction == DMA_MEM_TO_DEV
+			? (void *)pdata->slave_id_tx : (void *)pdata->slave_id_rx;
 	else
-		slave_id = 0;
+		slave_data = 0;
 
 	chan = dma_request_slave_channel_compat(mask, shdma_chan_filter,
-				(void *)(unsigned long)slave_id, &host->pd->dev,
+				slave_data, &host->pd->dev,
 				direction == DMA_MEM_TO_DEV ? "tx" : "rx");
 
 	dev_dbg(&host->pd->dev, "%s: %s: got channel %p\n", __func__,
@@ -414,8 +414,6 @@  sh_mmcif_request_dma_one(struct sh_mmcif_host *host,
 
 	res = platform_get_resource(host->pd, IORESOURCE_MEM, 0);
 
-	/* In the OF case the driver will get the slave ID from the DT */
-	cfg.slave_id = slave_id;
 	cfg.direction = direction;
 
 	if (direction == DMA_DEV_TO_MEM) {