diff mbox

[v2,3/3] media: atmel-isi: remove mck back compatiable code as it's not need

Message ID 1428570108-4961-4-git-send-email-josh.wu@atmel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Josh Wu April 9, 2015, 9:01 a.m. UTC
The master clock should handled by sensor itself.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
---

Changes in v2:
- totally remove clock_start()/clock_stop() as they are optional.

 drivers/media/platform/soc_camera/atmel-isi.c | 45 ---------------------------
 1 file changed, 45 deletions(-)

Comments

Laurent Pinchart April 12, 2015, 1:08 p.m. UTC | #1
Hi Josh,

Thank you for the patch.

On Thursday 09 April 2015 17:01:48 Josh Wu wrote:
> The master clock should handled by sensor itself.
> 
> Signed-off-by: Josh Wu <josh.wu@atmel.com>
> ---
> 
> Changes in v2:
> - totally remove clock_start()/clock_stop() as they are optional.
> 
>  drivers/media/platform/soc_camera/atmel-isi.c | 45 ------------------------
>  1 file changed, 45 deletions(-)
> 
> diff --git a/drivers/media/platform/soc_camera/atmel-isi.c
> b/drivers/media/platform/soc_camera/atmel-isi.c index 2b05f89..7bba7d9
> 100644
> --- a/drivers/media/platform/soc_camera/atmel-isi.c
> +++ b/drivers/media/platform/soc_camera/atmel-isi.c
> @@ -83,8 +83,6 @@ struct atmel_isi {
>  	struct completion		complete;
>  	/* ISI peripherial clock */
>  	struct clk			*pclk;
> -	/* ISI_MCK, feed to camera sensor to generate pixel clock */
> -	struct clk			*mck;
>  	unsigned int			irq;
> 
>  	struct isi_platform_data	pdata;
> @@ -727,31 +725,6 @@ static void isi_camera_remove_device(struct
> soc_camera_device *icd) icd->devnum);
>  }
> 
> -/* Called with .host_lock held */
> -static int isi_camera_clock_start(struct soc_camera_host *ici)
> -{
> -	struct atmel_isi *isi = ici->priv;
> -	int ret;
> -
> -	if (!IS_ERR(isi->mck)) {
> -		ret = clk_prepare_enable(isi->mck);
> -		if (ret) {
> -			return ret;
> -		}
> -	}
> -
> -	return 0;
> -}
> -
> -/* Called with .host_lock held */
> -static void isi_camera_clock_stop(struct soc_camera_host *ici)
> -{
> -	struct atmel_isi *isi = ici->priv;
> -
> -	if (!IS_ERR(isi->mck))
> -		clk_disable_unprepare(isi->mck);
> -}
> -
>  static unsigned int isi_camera_poll(struct file *file, poll_table *pt)
>  {
>  	struct soc_camera_device *icd = file->private_data;
> @@ -865,8 +838,6 @@ static struct soc_camera_host_ops
> isi_soc_camera_host_ops = { .owner		= THIS_MODULE,
>  	.add		= isi_camera_add_device,
>  	.remove		= isi_camera_remove_device,
> -	.clock_start	= isi_camera_clock_start,
> -	.clock_stop	= isi_camera_clock_stop,
>  	.set_fmt	= isi_camera_set_fmt,
>  	.try_fmt	= isi_camera_try_fmt,
>  	.get_formats	= isi_camera_get_formats,
> @@ -904,7 +875,6 @@ static int atmel_isi_probe_dt(struct atmel_isi *isi,
> 
>  	/* Default settings for ISI */
>  	isi->pdata.full_mode = 1;
> -	isi->pdata.mck_hz = ISI_DEFAULT_MCLK_FREQ;

You can also remove the #define ISI_DEFAULT_MCLK_FREQ at the beginning of this 
file.

With this fixed,

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

>  	isi->pdata.frate = ISI_CFG1_FRATE_CAPTURE_ALL;
> 
>  	np = of_graph_get_next_endpoint(np, NULL);
> @@ -980,21 +950,6 @@ static int atmel_isi_probe(struct platform_device
> *pdev) INIT_LIST_HEAD(&isi->video_buffer_list);
>  	INIT_LIST_HEAD(&isi->dma_desc_head);
> 
> -	/* ISI_MCK is the sensor master clock. It should be handled by the
> -	 * sensor driver directly, as the ISI has no use for that clock. Make
> -	 * the clock optional here while platforms transition to the correct
> -	 * model.
> -	 */
> -	isi->mck = devm_clk_get(dev, "isi_mck");
> -	if (!IS_ERR(isi->mck)) {
> -		/* Set ISI_MCK's frequency, it should be faster than pixel
> -		 * clock.
> -		 */
> -		ret = clk_set_rate(isi->mck, isi->pdata.mck_hz);
> -		if (ret < 0)
> -			return ret;
> -	}
> -
>  	isi->p_fb_descriptors = dma_alloc_coherent(&pdev->dev,
>  				sizeof(struct fbd) * MAX_BUFFER_NUM,
>  				&isi->fb_descriptors_phys,
Josh Wu April 13, 2015, 10:09 a.m. UTC | #2
Hi, Laurent

On 4/12/2015 9:08 PM, Laurent Pinchart wrote:
> Hi Josh,
>
> Thank you for the patch.
>
> On Thursday 09 April 2015 17:01:48 Josh Wu wrote:
>> The master clock should handled by sensor itself.
>>
>> Signed-off-by: Josh Wu <josh.wu@atmel.com>
>> ---
>>
>> Changes in v2:
>> - totally remove clock_start()/clock_stop() as they are optional.
>>
>>   drivers/media/platform/soc_camera/atmel-isi.c | 45 ------------------------
>>   1 file changed, 45 deletions(-)
>>
>> diff --git a/drivers/media/platform/soc_camera/atmel-isi.c
>> b/drivers/media/platform/soc_camera/atmel-isi.c index 2b05f89..7bba7d9
>> 100644
>> --- a/drivers/media/platform/soc_camera/atmel-isi.c
>> +++ b/drivers/media/platform/soc_camera/atmel-isi.c
>> @@ -83,8 +83,6 @@ struct atmel_isi {
>>   	struct completion		complete;
>>   	/* ISI peripherial clock */
>>   	struct clk			*pclk;
>> -	/* ISI_MCK, feed to camera sensor to generate pixel clock */
>> -	struct clk			*mck;
>>   	unsigned int			irq;
>>
>>   	struct isi_platform_data	pdata;
>> @@ -727,31 +725,6 @@ static void isi_camera_remove_device(struct
>> soc_camera_device *icd) icd->devnum);
>>   }
>>
>> -/* Called with .host_lock held */
>> -static int isi_camera_clock_start(struct soc_camera_host *ici)
>> -{
>> -	struct atmel_isi *isi = ici->priv;
>> -	int ret;
>> -
>> -	if (!IS_ERR(isi->mck)) {
>> -		ret = clk_prepare_enable(isi->mck);
>> -		if (ret) {
>> -			return ret;
>> -		}
>> -	}
>> -
>> -	return 0;
>> -}
>> -
>> -/* Called with .host_lock held */
>> -static void isi_camera_clock_stop(struct soc_camera_host *ici)
>> -{
>> -	struct atmel_isi *isi = ici->priv;
>> -
>> -	if (!IS_ERR(isi->mck))
>> -		clk_disable_unprepare(isi->mck);
>> -}
>> -
>>   static unsigned int isi_camera_poll(struct file *file, poll_table *pt)
>>   {
>>   	struct soc_camera_device *icd = file->private_data;
>> @@ -865,8 +838,6 @@ static struct soc_camera_host_ops
>> isi_soc_camera_host_ops = { .owner		= THIS_MODULE,
>>   	.add		= isi_camera_add_device,
>>   	.remove		= isi_camera_remove_device,
>> -	.clock_start	= isi_camera_clock_start,
>> -	.clock_stop	= isi_camera_clock_stop,
>>   	.set_fmt	= isi_camera_set_fmt,
>>   	.try_fmt	= isi_camera_try_fmt,
>>   	.get_formats	= isi_camera_get_formats,
>> @@ -904,7 +875,6 @@ static int atmel_isi_probe_dt(struct atmel_isi *isi,
>>
>>   	/* Default settings for ISI */
>>   	isi->pdata.full_mode = 1;
>> -	isi->pdata.mck_hz = ISI_DEFAULT_MCLK_FREQ;
> You can also remove the #define ISI_DEFAULT_MCLK_FREQ at the beginning of this
> file.

I'll remove the useless definition.

>
> With this fixed,
>
> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Thanks.

Best Regards,
Josh Wu

>
>>   	isi->pdata.frate = ISI_CFG1_FRATE_CAPTURE_ALL;
>>
>>   	np = of_graph_get_next_endpoint(np, NULL);
>> @@ -980,21 +950,6 @@ static int atmel_isi_probe(struct platform_device
>> *pdev) INIT_LIST_HEAD(&isi->video_buffer_list);
>>   	INIT_LIST_HEAD(&isi->dma_desc_head);
>>
>> -	/* ISI_MCK is the sensor master clock. It should be handled by the
>> -	 * sensor driver directly, as the ISI has no use for that clock. Make
>> -	 * the clock optional here while platforms transition to the correct
>> -	 * model.
>> -	 */
>> -	isi->mck = devm_clk_get(dev, "isi_mck");
>> -	if (!IS_ERR(isi->mck)) {
>> -		/* Set ISI_MCK's frequency, it should be faster than pixel
>> -		 * clock.
>> -		 */
>> -		ret = clk_set_rate(isi->mck, isi->pdata.mck_hz);
>> -		if (ret < 0)
>> -			return ret;
>> -	}
>> -
>>   	isi->p_fb_descriptors = dma_alloc_coherent(&pdev->dev,
>>   				sizeof(struct fbd) * MAX_BUFFER_NUM,
>>   				&isi->fb_descriptors_phys,
diff mbox

Patch

diff --git a/drivers/media/platform/soc_camera/atmel-isi.c b/drivers/media/platform/soc_camera/atmel-isi.c
index 2b05f89..7bba7d9 100644
--- a/drivers/media/platform/soc_camera/atmel-isi.c
+++ b/drivers/media/platform/soc_camera/atmel-isi.c
@@ -83,8 +83,6 @@  struct atmel_isi {
 	struct completion		complete;
 	/* ISI peripherial clock */
 	struct clk			*pclk;
-	/* ISI_MCK, feed to camera sensor to generate pixel clock */
-	struct clk			*mck;
 	unsigned int			irq;
 
 	struct isi_platform_data	pdata;
@@ -727,31 +725,6 @@  static void isi_camera_remove_device(struct soc_camera_device *icd)
 		 icd->devnum);
 }
 
-/* Called with .host_lock held */
-static int isi_camera_clock_start(struct soc_camera_host *ici)
-{
-	struct atmel_isi *isi = ici->priv;
-	int ret;
-
-	if (!IS_ERR(isi->mck)) {
-		ret = clk_prepare_enable(isi->mck);
-		if (ret) {
-			return ret;
-		}
-	}
-
-	return 0;
-}
-
-/* Called with .host_lock held */
-static void isi_camera_clock_stop(struct soc_camera_host *ici)
-{
-	struct atmel_isi *isi = ici->priv;
-
-	if (!IS_ERR(isi->mck))
-		clk_disable_unprepare(isi->mck);
-}
-
 static unsigned int isi_camera_poll(struct file *file, poll_table *pt)
 {
 	struct soc_camera_device *icd = file->private_data;
@@ -865,8 +838,6 @@  static struct soc_camera_host_ops isi_soc_camera_host_ops = {
 	.owner		= THIS_MODULE,
 	.add		= isi_camera_add_device,
 	.remove		= isi_camera_remove_device,
-	.clock_start	= isi_camera_clock_start,
-	.clock_stop	= isi_camera_clock_stop,
 	.set_fmt	= isi_camera_set_fmt,
 	.try_fmt	= isi_camera_try_fmt,
 	.get_formats	= isi_camera_get_formats,
@@ -904,7 +875,6 @@  static int atmel_isi_probe_dt(struct atmel_isi *isi,
 
 	/* Default settings for ISI */
 	isi->pdata.full_mode = 1;
-	isi->pdata.mck_hz = ISI_DEFAULT_MCLK_FREQ;
 	isi->pdata.frate = ISI_CFG1_FRATE_CAPTURE_ALL;
 
 	np = of_graph_get_next_endpoint(np, NULL);
@@ -980,21 +950,6 @@  static int atmel_isi_probe(struct platform_device *pdev)
 	INIT_LIST_HEAD(&isi->video_buffer_list);
 	INIT_LIST_HEAD(&isi->dma_desc_head);
 
-	/* ISI_MCK is the sensor master clock. It should be handled by the
-	 * sensor driver directly, as the ISI has no use for that clock. Make
-	 * the clock optional here while platforms transition to the correct
-	 * model.
-	 */
-	isi->mck = devm_clk_get(dev, "isi_mck");
-	if (!IS_ERR(isi->mck)) {
-		/* Set ISI_MCK's frequency, it should be faster than pixel
-		 * clock.
-		 */
-		ret = clk_set_rate(isi->mck, isi->pdata.mck_hz);
-		if (ret < 0)
-			return ret;
-	}
-
 	isi->p_fb_descriptors = dma_alloc_coherent(&pdev->dev,
 				sizeof(struct fbd) * MAX_BUFFER_NUM,
 				&isi->fb_descriptors_phys,