Re: [PATCH v9 6/8] media: vsp1: Refactor display list configure operations

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Hi Laurent,

Thanks for the review,

On 17/05/18 10:41, Laurent Pinchart wrote:
> Hi Kieran,
> 
> Thank you for the patch.
> 
> On Thursday, 3 May 2018 16:35:45 EEST Kieran Bingham wrote:
>> The entities provide a single .configure operation which configures the
>> object into the target display list, based on the vsp1_entity_params
>> selection.
>>
>> Split the configure function into three parts, '.configure_stream()',
>> '.configure_frame()', and '.configure_partition()' to facilitate
>> splitting the configuration of each parameter class into separate
>> display list bodies.
>>
>> Signed-off-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
>>
>> ---
>> The checkpatch warning:
>>
>> WARNING: function definition argument 'struct vsp1_dl_list *' should
>> also have an identifier name
>>
>> has been ignored to match the existing code style.
>>
>> v8:
>>  - Add support for the UIF
>>  - Remove unrelated whitespace change
>>  - Fix comment location for clu_configure_stream()
>>  - Update configure documentations
>>  - Implement configure_partition separation.
>>
>> v7
>>  - Fix formatting and white space
>>  - s/prepare/configure_stream/
>>  - s/configure/configure_frame/
>> ---
>>  drivers/media/platform/vsp1/vsp1_brx.c    |  12 +-
>>  drivers/media/platform/vsp1/vsp1_clu.c    |  77 ++----
>>  drivers/media/platform/vsp1/vsp1_drm.c    |  12 +-
>>  drivers/media/platform/vsp1/vsp1_entity.c |  24 ++-
>>  drivers/media/platform/vsp1/vsp1_entity.h |  39 +--
>>  drivers/media/platform/vsp1/vsp1_hgo.c    |  12 +-
>>  drivers/media/platform/vsp1/vsp1_hgt.c    |  12 +-
>>  drivers/media/platform/vsp1/vsp1_hsit.c   |  12 +-
>>  drivers/media/platform/vsp1/vsp1_lif.c    |  12 +-
>>  drivers/media/platform/vsp1/vsp1_lut.c    |  47 +---
>>  drivers/media/platform/vsp1/vsp1_rpf.c    | 168 ++++++-------
>>  drivers/media/platform/vsp1/vsp1_sru.c    |  12 +-
>>  drivers/media/platform/vsp1/vsp1_uds.c    |  56 ++--
>>  drivers/media/platform/vsp1/vsp1_uif.c    |  16 +-
>>  drivers/media/platform/vsp1/vsp1_video.c  |  28 +--
>>  drivers/media/platform/vsp1/vsp1_wpf.c    | 303 ++++++++++++-----------
>>  16 files changed, 422 insertions(+), 420 deletions(-)
> 
> [snip]
> 
>> diff --git a/drivers/media/platform/vsp1/vsp1_clu.c
>> b/drivers/media/platform/vsp1/vsp1_clu.c index ea83f1b7d125..0a978980d447
>> 100644
>> --- a/drivers/media/platform/vsp1/vsp1_clu.c
>> +++ b/drivers/media/platform/vsp1/vsp1_clu.c
>> @@ -168,58 +168,50 @@ static const struct v4l2_subdev_ops clu_ops = {
>>  /* ------------------------------------------------------------------------
>>   * VSP1 Entity Operations
>>   */
>> +static void clu_configure_stream(struct vsp1_entity *entity,
>> +				 struct vsp1_pipeline *pipe,
>> +				 struct vsp1_dl_list *dl)
>> +{
>> +	struct vsp1_clu *clu = to_clu(&entity->subdev);
>> +	struct v4l2_mbus_framefmt *format;
>>
> 
> I would have kept this blank line before the function.

I would have thought I would too :)

> 
>> -static void clu_configure(struct vsp1_entity *entity,
>> -			  struct vsp1_pipeline *pipe,
>> -			  struct vsp1_dl_list *dl,
>> -			  enum vsp1_entity_params params)
>> +	/*
>> +	 * The yuv_mode can't be changed during streaming. Cache it internally
>> +	 * for future runtime configuration calls.
>> +	 */
>> +	format = vsp1_entity_get_pad_format(&clu->entity,
>> +					    clu->entity.config,
>> +					    CLU_PAD_SINK);
>> +	clu->yuv_mode = format->code == MEDIA_BUS_FMT_AYUV8_1X32;
>> +}
> 
> [snip]
> 
>> diff --git a/drivers/media/platform/vsp1/vsp1_wpf.c
>> b/drivers/media/platform/vsp1/vsp1_wpf.c index 65ed2f849551..da287c27b324
>> 100644
>> --- a/drivers/media/platform/vsp1/vsp1_wpf.c
>> +++ b/drivers/media/platform/vsp1/vsp1_wpf.c
> 
> [snip]
> 
>> +static void wpf_configure_frame(struct vsp1_entity *entity,
>> +				struct vsp1_pipeline *pipe,
>> +				struct vsp1_dl_list *dl)
>> +{
>> +	struct vsp1_rwpf *wpf = to_rwpf(&entity->subdev);
>> +	unsigned long flags;
>> +	u32 outfmt = 0;
> 
> No need to initialize outfmt to 0.

Ah yes, indeed!.

>> +
> 
> This blank line isn't needed.
> 
>> +	const unsigned int mask = BIT(WPF_CTRL_VFLIP)
>> +				| BIT(WPF_CTRL_HFLIP);
>> +
>> +	spin_lock_irqsave(&wpf->flip.lock, flags);
>> +	wpf->flip.active = (wpf->flip.active & ~mask)
>> +			 | (wpf->flip.pending & mask);
>> +	spin_unlock_irqrestore(&wpf->flip.lock, flags);
>> +
>> +	outfmt = (wpf->alpha << VI6_WPF_OUTFMT_PDV_SHIFT) | wpf->outfmt;
>> +
>> +	if (wpf->flip.active & BIT(WPF_CTRL_VFLIP))
>> +		outfmt |= VI6_WPF_OUTFMT_FLP;
>> +	if (wpf->flip.active & BIT(WPF_CTRL_HFLIP))
>> +		outfmt |= VI6_WPF_OUTFMT_HFLP;
>> +
>> +	vsp1_wpf_write(wpf, dl, VI6_WPF_OUTFMT, outfmt);
>> +}
> 
> [snip]
> 
> Apart from that,
> 
> Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> 
> If you agree with those small changes there's no need to resubmit, I'll fix 
> when applying.

No objections to any white-space corrections you feel are necessary.

Thanks.

Kieran




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