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SubjectRe: [PATCH v4 05/11] drm/bridge: synopsys: dw-hdmi: allow ycbcr420 modes for >= 0x200a
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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 <narmstrong@baylibre.com>
>> ---
>> 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 <laurent.pinchart@ideasonboard.com>

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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