diff mbox series

[04/15] media: pxa_camera: remove the dmaengine compat need

Message ID 20180402142656.26815-5-robert.jarzmik@free.fr
State Not Applicable
Delegated to: David Miller
Headers show
Series ARM: pxa: switch to DMA slave maps | expand

Commit Message

Robert Jarzmik April 2, 2018, 2:26 p.m. UTC 
From: Robert Jarzmik <robert.jarzmik@renault.com>

As the pxa architecture switched towards the dmaengine slave map, the
old compatibility mechanism to acquire the dma requestor line number and
priority are not needed anymore.

This patch simplifies the dma resource acquisition, using the more
generic function dma_request_slave_channel().

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
 drivers/media/platform/pxa_camera.c | 22 +++-------------------
 1 file changed, 3 insertions(+), 19 deletions(-)

Comments

Hans Verkuil April 22, 2018, 11:06 a.m. UTC | #1 
On 04/02/2018 04:26 PM, Robert Jarzmik wrote:
> From: Robert Jarzmik <robert.jarzmik@renault.com>
> 
> As the pxa architecture switched towards the dmaengine slave map, the
> old compatibility mechanism to acquire the dma requestor line number and
> priority are not needed anymore.
> 
> This patch simplifies the dma resource acquisition, using the more
> generic function dma_request_slave_channel().
> 
> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>

Regards,

	Hans

> ---
>  drivers/media/platform/pxa_camera.c | 22 +++-------------------
>  1 file changed, 3 insertions(+), 19 deletions(-)
> 
> diff --git a/drivers/media/platform/pxa_camera.c b/drivers/media/platform/pxa_camera.c
> index c71a00736541..4c82d1880753 100644
> --- a/drivers/media/platform/pxa_camera.c
> +++ b/drivers/media/platform/pxa_camera.c
> @@ -2357,8 +2357,6 @@ static int pxa_camera_probe(struct platform_device *pdev)
>  		.src_maxburst = 8,
>  		.direction = DMA_DEV_TO_MEM,
>  	};
> -	dma_cap_mask_t mask;
> -	struct pxad_param params;
>  	char clk_name[V4L2_CLK_NAME_SIZE];
>  	int irq;
>  	int err = 0, i;
> @@ -2432,34 +2430,20 @@ static int pxa_camera_probe(struct platform_device *pdev)
>  	pcdev->base = base;
>  
>  	/* request dma */
> -	dma_cap_zero(mask);
> -	dma_cap_set(DMA_SLAVE, mask);
> -	dma_cap_set(DMA_PRIVATE, mask);
> -
> -	params.prio = 0;
> -	params.drcmr = 68;
> -	pcdev->dma_chans[0] =
> -		dma_request_slave_channel_compat(mask, pxad_filter_fn,
> -						 &params, &pdev->dev, "CI_Y");
> +	pcdev->dma_chans[0] = dma_request_slave_channel(&pdev->dev, "CI_Y");
>  	if (!pcdev->dma_chans[0]) {
>  		dev_err(&pdev->dev, "Can't request DMA for Y\n");
>  		return -ENODEV;
>  	}
>  
> -	params.drcmr = 69;
> -	pcdev->dma_chans[1] =
> -		dma_request_slave_channel_compat(mask, pxad_filter_fn,
> -						 &params, &pdev->dev, "CI_U");
> +	pcdev->dma_chans[1] = dma_request_slave_channel(&pdev->dev, "CI_U");
>  	if (!pcdev->dma_chans[1]) {
>  		dev_err(&pdev->dev, "Can't request DMA for Y\n");
>  		err = -ENODEV;
>  		goto exit_free_dma_y;
>  	}
>  
> -	params.drcmr = 70;
> -	pcdev->dma_chans[2] =
> -		dma_request_slave_channel_compat(mask, pxad_filter_fn,
> -						 &params, &pdev->dev, "CI_V");
> +	pcdev->dma_chans[2] = dma_request_slave_channel(&pdev->dev, "CI_V");
>  	if (!pcdev->dma_chans[2]) {
>  		dev_err(&pdev->dev, "Can't request DMA for V\n");
>  		err = -ENODEV;
> 

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Mauro Carvalho Chehab May 4, 2018, 7:29 p.m. UTC | #2 
Em Sun, 22 Apr 2018 13:06:12 +0200
Hans Verkuil <hverkuil@xs4all.nl> escreveu:

> On 04/02/2018 04:26 PM, Robert Jarzmik wrote:
> > From: Robert Jarzmik <robert.jarzmik@renault.com>
> > 
> > As the pxa architecture switched towards the dmaengine slave map, the
> > old compatibility mechanism to acquire the dma requestor line number and
> > priority are not needed anymore.
> > 
> > This patch simplifies the dma resource acquisition, using the more
> > generic function dma_request_slave_channel().
> > 
> > Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>  
> 
> Acked-by: Hans Verkuil <hans.verkuil@cisco.com>

I'm assuming that you'll be applying it together with other PXA patches.
So:

Acked-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

Regards,
Mauro
> 
> Regards,
> 
> 	Hans
> 
> > ---
> >  drivers/media/platform/pxa_camera.c | 22 +++-------------------
> >  1 file changed, 3 insertions(+), 19 deletions(-)
> > 
> > diff --git a/drivers/media/platform/pxa_camera.c b/drivers/media/platform/pxa_camera.c
> > index c71a00736541..4c82d1880753 100644
> > --- a/drivers/media/platform/pxa_camera.c
> > +++ b/drivers/media/platform/pxa_camera.c
> > @@ -2357,8 +2357,6 @@ static int pxa_camera_probe(struct platform_device *pdev)
> >  		.src_maxburst = 8,
> >  		.direction = DMA_DEV_TO_MEM,
> >  	};
> > -	dma_cap_mask_t mask;
> > -	struct pxad_param params;
> >  	char clk_name[V4L2_CLK_NAME_SIZE];
> >  	int irq;
> >  	int err = 0, i;
> > @@ -2432,34 +2430,20 @@ static int pxa_camera_probe(struct platform_device *pdev)
> >  	pcdev->base = base;
> >  
> >  	/* request dma */
> > -	dma_cap_zero(mask);
> > -	dma_cap_set(DMA_SLAVE, mask);
> > -	dma_cap_set(DMA_PRIVATE, mask);
> > -
> > -	params.prio = 0;
> > -	params.drcmr = 68;
> > -	pcdev->dma_chans[0] =
> > -		dma_request_slave_channel_compat(mask, pxad_filter_fn,
> > -						 &params, &pdev->dev, "CI_Y");
> > +	pcdev->dma_chans[0] = dma_request_slave_channel(&pdev->dev, "CI_Y");
> >  	if (!pcdev->dma_chans[0]) {
> >  		dev_err(&pdev->dev, "Can't request DMA for Y\n");
> >  		return -ENODEV;
> >  	}
> >  
> > -	params.drcmr = 69;
> > -	pcdev->dma_chans[1] =
> > -		dma_request_slave_channel_compat(mask, pxad_filter_fn,
> > -						 &params, &pdev->dev, "CI_U");
> > +	pcdev->dma_chans[1] = dma_request_slave_channel(&pdev->dev, "CI_U");
> >  	if (!pcdev->dma_chans[1]) {
> >  		dev_err(&pdev->dev, "Can't request DMA for Y\n");
> >  		err = -ENODEV;
> >  		goto exit_free_dma_y;
> >  	}
> >  
> > -	params.drcmr = 70;
> > -	pcdev->dma_chans[2] =
> > -		dma_request_slave_channel_compat(mask, pxad_filter_fn,
> > -						 &params, &pdev->dev, "CI_V");
> > +	pcdev->dma_chans[2] = dma_request_slave_channel(&pdev->dev, "CI_V");
> >  	if (!pcdev->dma_chans[2]) {
> >  		dev_err(&pdev->dev, "Can't request DMA for V\n");
> >  		err = -ENODEV;
> >   
> 



Thanks,
Mauro
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diff mbox series

Patch

diff --git a/drivers/media/platform/pxa_camera.c b/drivers/media/platform/pxa_camera.c
index c71a00736541..4c82d1880753 100644
--- a/drivers/media/platform/pxa_camera.c
+++ b/drivers/media/platform/pxa_camera.c
@@ -2357,8 +2357,6 @@  static int pxa_camera_probe(struct platform_device *pdev)
 		.src_maxburst = 8,
 		.direction = DMA_DEV_TO_MEM,
 	};
-	dma_cap_mask_t mask;
-	struct pxad_param params;
 	char clk_name[V4L2_CLK_NAME_SIZE];
 	int irq;
 	int err = 0, i;
@@ -2432,34 +2430,20 @@  static int pxa_camera_probe(struct platform_device *pdev)
 	pcdev->base = base;
 
 	/* request dma */
-	dma_cap_zero(mask);
-	dma_cap_set(DMA_SLAVE, mask);
-	dma_cap_set(DMA_PRIVATE, mask);
-
-	params.prio = 0;
-	params.drcmr = 68;
-	pcdev->dma_chans[0] =
-		dma_request_slave_channel_compat(mask, pxad_filter_fn,
-						 &params, &pdev->dev, "CI_Y");
+	pcdev->dma_chans[0] = dma_request_slave_channel(&pdev->dev, "CI_Y");
 	if (!pcdev->dma_chans[0]) {
 		dev_err(&pdev->dev, "Can't request DMA for Y\n");
 		return -ENODEV;
 	}
 
-	params.drcmr = 69;
-	pcdev->dma_chans[1] =
-		dma_request_slave_channel_compat(mask, pxad_filter_fn,
-						 &params, &pdev->dev, "CI_U");
+	pcdev->dma_chans[1] = dma_request_slave_channel(&pdev->dev, "CI_U");
 	if (!pcdev->dma_chans[1]) {
 		dev_err(&pdev->dev, "Can't request DMA for Y\n");
 		err = -ENODEV;
 		goto exit_free_dma_y;
 	}
 
-	params.drcmr = 70;
-	pcdev->dma_chans[2] =
-		dma_request_slave_channel_compat(mask, pxad_filter_fn,
-						 &params, &pdev->dev, "CI_V");
+	pcdev->dma_chans[2] = dma_request_slave_channel(&pdev->dev, "CI_V");
 	if (!pcdev->dma_chans[2]) {
 		dev_err(&pdev->dev, "Can't request DMA for V\n");
 		err = -ENODEV;