On 02/03/2020 11:03, Laurent Pinchart wrote:
> Hi Neil,
> 
> Thank you for the patch.
> 
> On Thu, Feb 06, 2020 at 08:18:28PM +0100, Neil Armstrong wrote:
>> Now the DW-HDMI Controller supports the HDMI2.0 modes, enable support
>> for these modes in the connector if the platform supports them.
>> We limit these modes to DW-HDMI IP version >= 0x200a which
>> are designed to support HDMI2.0 display modes.
>>
>> Signed-off-by: Neil Armstrong <[email protected]>
>> ---
>>  drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 6 ++++++
>>  include/drm/bridge/dw_hdmi.h              | 1 +
>>  2 files changed, 7 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c 
>> b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
>> index 15048ad694bc..4b35ea1427df 100644
>> --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
>> +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
>> @@ -3231,6 +3231,12 @@ __dw_hdmi_probe(struct platform_device *pdev,
>>      hdmi->bridge.of_node = pdev->dev.of_node;
>>  #endif
>>  
>> +    if (hdmi->version >= 0x200a)
>> +            hdmi->connector.ycbcr_420_allowed =
>> +                    hdmi->plat_data->ycbcr_420_allowed;
>> +    else
>> +            hdmi->connector.ycbcr_420_allowed = false;
>> +
> 
> The hdmi structure being allocated with kzalloc, you don't need the
> second branch of the if, but I'm fine if you prefer keeping it. Any
> either case,

Yep Andrzej said the same, but I prefer it to be explicit.

> 
> Reviewed-by: Laurent Pinchart <[email protected]>

Thanks,
Neil

> 
>>      memset(&pdevinfo, 0, sizeof(pdevinfo));
>>      pdevinfo.parent = dev;
>>      pdevinfo.id = PLATFORM_DEVID_AUTO;
>> diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
>> index 9d4d5cc47969..0b34a12c4a1c 100644
>> --- a/include/drm/bridge/dw_hdmi.h
>> +++ b/include/drm/bridge/dw_hdmi.h
>> @@ -129,6 +129,7 @@ struct dw_hdmi_plat_data {
>>      unsigned long input_bus_format;
>>      unsigned long input_bus_encoding;
>>      bool use_drm_infoframe;
>> +    bool ycbcr_420_allowed;
>>  
>>      /* Vendor PHY support */
>>      const struct dw_hdmi_phy_ops *phy_ops;
> 

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