On 17/09/2020 10:57, Hans Verkuil wrote:
> Hi Prabhakar,
> 
> Can you rebase this patch? It no longer applies.

Never mind, my mistake. When I was preparing this patch I also had this patch
applied: 
https://patchwork.linuxtv.org/project/linux-media/patch/1595602732-25582-3-git-send-email-prabhakar.mahadev-lad...@bp.renesas.com/

And that caused the conflict with this YDS patch.

However, I backed out the two renesas-vin-ycbcr-8b-g patches since there were a
bunch comments for 
https://patchwork.linuxtv.org/project/linux-media/patch/1595602732-25582-2-git-send-email-prabhakar.mahadev-lad...@bp.renesas.com/

So after dropping those two patches this YDS patch now applies fine and will
be included in the PR.

Sorry for the confusion,

        Hans

> 
> Regards,
> 
>       Hans
> 
> On 13/09/2020 20:16, Lad Prabhakar wrote:
>> Enable YDS bit if bus_width and data_shift is set to 8 in parallel mode
>> for MEDIA_BUS_FMT_UYVY8_2X8 format.
>>
>> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad...@bp.renesas.com>
>> Reviewed-by: Biju Das <biju.das...@bp.renesas.com>
>> ---
>> Changes for v3:
>> * Dropped BIT macro
>> * Introduced struct v4l2_fwnode_bus_parallel
>>
>> Changes for v2:
>> * Dropped DT binding documentation patch
>> * Select the data pins depending on bus-width and data-shift
>>
>> v1 -
>> https://patchwork.kernel.org/project/linux-renesas-soc/list/?series=323799
>> ---
>>  drivers/media/platform/rcar-vin/rcar-core.c |  9 ++++-----
>>  drivers/media/platform/rcar-vin/rcar-dma.c  | 17 ++++++++++++++---
>>  drivers/media/platform/rcar-vin/rcar-vin.h  |  5 +++--
>>  3 files changed, 21 insertions(+), 10 deletions(-)
>>
>> diff --git a/drivers/media/platform/rcar-vin/rcar-core.c 
>> b/drivers/media/platform/rcar-vin/rcar-core.c
>> index 7440c8965d27..1149ab76cf5c 100644
>> --- a/drivers/media/platform/rcar-vin/rcar-core.c
>> +++ b/drivers/media/platform/rcar-vin/rcar-core.c
>> @@ -626,12 +626,11 @@ static int rvin_parallel_parse_v4l2(struct device *dev,
>>  
>>      switch (vin->parallel->mbus_type) {
>>      case V4L2_MBUS_PARALLEL:
>> -            vin_dbg(vin, "Found PARALLEL media bus\n");
>> -            vin->parallel->mbus_flags = vep->bus.parallel.flags;
>> -            break;
>>      case V4L2_MBUS_BT656:
>> -            vin_dbg(vin, "Found BT656 media bus\n");
>> -            vin->parallel->mbus_flags = 0;
>> +            vin_dbg(vin, "Found %s media bus\n",
>> +                    vin->parallel->mbus_type == V4L2_MBUS_PARALLEL ?
>> +                    "PARALLEL" : "BT656");
>> +            vin->parallel->bus = vep->bus.parallel;
>>              break;
>>      default:
>>              vin_err(vin, "Unknown media bus type\n");
>> diff --git a/drivers/media/platform/rcar-vin/rcar-dma.c 
>> b/drivers/media/platform/rcar-vin/rcar-dma.c
>> index a5dbb90c5210..d067439b0b0d 100644
>> --- a/drivers/media/platform/rcar-vin/rcar-dma.c
>> +++ b/drivers/media/platform/rcar-vin/rcar-dma.c
>> @@ -125,6 +125,7 @@
>>  #define VNDMR2_VPS          (1 << 30)
>>  #define VNDMR2_HPS          (1 << 29)
>>  #define VNDMR2_CES          (1 << 28)
>> +#define VNDMR2_YDS          (1 << 22)
>>  #define VNDMR2_FTEV         (1 << 17)
>>  #define VNDMR2_VLV(n)               ((n & 0xf) << 12)
>>  
>> @@ -698,16 +699,26 @@ static int rvin_setup(struct rvin_dev *vin)
>>  
>>      if (!vin->is_csi) {
>>              /* Hsync Signal Polarity Select */
>> -            if (!(vin->parallel->mbus_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW))
>> +            if (!(vin->parallel->bus.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW))
>>                      dmr2 |= VNDMR2_HPS;
>>  
>>              /* Vsync Signal Polarity Select */
>> -            if (!(vin->parallel->mbus_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW))
>> +            if (!(vin->parallel->bus.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW))
>>                      dmr2 |= VNDMR2_VPS;
>>  
>>              /* Data Enable Polarity Select */
>> -            if (vin->parallel->mbus_flags & V4L2_MBUS_DATA_ENABLE_LOW)
>> +            if (vin->parallel->bus.flags & V4L2_MBUS_DATA_ENABLE_LOW)
>>                      dmr2 |= VNDMR2_CES;
>> +
>> +            switch (vin->mbus_code) {
>> +            case MEDIA_BUS_FMT_UYVY8_2X8:
>> +                    if (vin->parallel->bus.bus_width == 8 &&
>> +                        vin->parallel->bus.data_shift == 8)
>> +                            dmr2 |= VNDMR2_YDS;
>> +                    break;
>> +            default:
>> +                    break;
>> +            }
>>      }
>>  
>>      /*
>> diff --git a/drivers/media/platform/rcar-vin/rcar-vin.h 
>> b/drivers/media/platform/rcar-vin/rcar-vin.h
>> index c19d077ce1cb..8396e0e45478 100644
>> --- a/drivers/media/platform/rcar-vin/rcar-vin.h
>> +++ b/drivers/media/platform/rcar-vin/rcar-vin.h
>> @@ -19,6 +19,7 @@
>>  #include <media/v4l2-ctrls.h>
>>  #include <media/v4l2-dev.h>
>>  #include <media/v4l2-device.h>
>> +#include <media/v4l2-fwnode.h>
>>  #include <media/videobuf2-v4l2.h>
>>  
>>  /* Number of HW buffers */
>> @@ -92,7 +93,7 @@ struct rvin_video_format {
>>   * @asd:    sub-device descriptor for async framework
>>   * @subdev: subdevice matched using async framework
>>   * @mbus_type:      media bus type
>> - * @mbus_flags:     media bus configuration flags
>> + * @bus:    media bus parallel configuration
>>   * @source_pad:     source pad of remote subdevice
>>   * @sink_pad:       sink pad of remote subdevice
>>   *
>> @@ -102,7 +103,7 @@ struct rvin_parallel_entity {
>>      struct v4l2_subdev *subdev;
>>  
>>      enum v4l2_mbus_type mbus_type;
>> -    unsigned int mbus_flags;
>> +    struct v4l2_fwnode_bus_parallel bus;
>>  
>>      unsigned int source_pad;
>>      unsigned int sink_pad;
>>
> 

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