From: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
To: "Chaoyi Chen" <chaoyi.chen@rock-chips.com>,
"Jan Claußen" <jan.claussen10@web.de>,
"Sandy Huang" <hjc@rock-chips.com>,
"Heiko Stübner" <heiko@sntech.de>,
"Andy Yan" <andy.yan@rock-chips.com>,
"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
"Maxime Ripard" <mripard@kernel.org>,
"Thomas Zimmermann" <tzimmermann@suse.de>,
"David Airlie" <airlied@gmail.com>,
"Simona Vetter" <simona@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org,
linux-rockchip@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 6/6] drm/rockchip: dw_hdmi_qp: Advertise BT.709 and BT.2020 colorimetries
Date: Mon, 19 Oct 2026 13:40:41 +0300 [thread overview]
Message-ID: <1c2c222f-53fa-496c-a8ba-9717beb6dcf3@collabora.com> (raw)
In-Reply-To: <039f91a1-7944-4092-9f9c-29b60e8fb17a@rock-chips.com>
On 10/19/26 6:19 AM, Chaoyi Chen wrote:
> Hi Jan,
>
> On 10/18/2026 8:30 PM, Jan Claußen wrote:
>> Expose BT.2020 RGB and YCC colorimetry so userspace can enable HDR
>> output. Also explicitly expose BT.709 YCC as it is listed in the
>> Rockchip RK3588 TRM V1.0-Part2 20220309 data sheet.
>>
>> Tested on a Radxa Rock 5B (RK3588) with an LG OLED55B87LC in KDE
>> Plasma 6.7.5: enabling HDR switches the colorspace to BT.2020, and
>> disabling it restores the default.
>>
>> Signed-off-by: Jan Claußen <jan.claussen10@web.de>
>> ---
>>
>> Not sure if BT.709 needs to be explicitly exposed here, but it is mentioned in the data sheet.
>> Might be covered by DRM_MODE_COLORIMETRY_DEFAULT though.
>
> Cc: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
>
> Hi Cristian, may be you would be interested in this series?
Hi Chaoyi, I already planned to check this out soon. Please note there's a newer
revision of the series, so I think it's best to move further discussions there.
Regards,
Cristian
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Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
WARNING: multiple messages have this Message-ID (diff)
From: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
To: "Chaoyi Chen" <chaoyi.chen@rock-chips.com>,
"Jan Claußen" <jan.claussen10@web.de>,
"Sandy Huang" <hjc@rock-chips.com>,
"Heiko Stübner" <heiko@sntech.de>,
"Andy Yan" <andy.yan@rock-chips.com>,
"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
"Maxime Ripard" <mripard@kernel.org>,
"Thomas Zimmermann" <tzimmermann@suse.de>,
"David Airlie" <airlied@gmail.com>,
"Simona Vetter" <simona@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org,
linux-rockchip@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 6/6] drm/rockchip: dw_hdmi_qp: Advertise BT.709 and BT.2020 colorimetries
Date: Mon, 19 Oct 2026 13:40:41 +0300 [thread overview]
Message-ID: <1c2c222f-53fa-496c-a8ba-9717beb6dcf3@collabora.com> (raw)
In-Reply-To: <039f91a1-7944-4092-9f9c-29b60e8fb17a@rock-chips.com>
On 10/19/26 6:19 AM, Chaoyi Chen wrote:
> Hi Jan,
>
> On 10/18/2026 8:30 PM, Jan Claußen wrote:
>> Expose BT.2020 RGB and YCC colorimetry so userspace can enable HDR
>> output. Also explicitly expose BT.709 YCC as it is listed in the
>> Rockchip RK3588 TRM V1.0-Part2 20220309 data sheet.
>>
>> Tested on a Radxa Rock 5B (RK3588) with an LG OLED55B87LC in KDE
>> Plasma 6.7.5: enabling HDR switches the colorspace to BT.2020, and
>> disabling it restores the default.
>>
>> Signed-off-by: Jan Claußen <jan.claussen10@web.de>
>> ---
>>
>> Not sure if BT.709 needs to be explicitly exposed here, but it is mentioned in the data sheet.
>> Might be covered by DRM_MODE_COLORIMETRY_DEFAULT though.
>
> Cc: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
>
> Hi Cristian, may be you would be interested in this series?
Hi Chaoyi, I already planned to check this out soon. Please note there's a newer
revision of the series, so I think it's best to move further discussions there.
Regards,
Cristian
next prev parent reply other threads:[~2026-10-19 10:40 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-18 12:30 [PATCH v3 0/6] drm: Add colorspace property support to the HDMI helpers Jan Claußen
2026-10-18 12:30 ` Jan Claußen
2026-10-18 12:30 ` [PATCH v3 1/6] drm/connector: Fix typo in colorspace error messages Jan Claußen
2026-10-18 12:30 ` [PATCH v3 2/6] drm/display: hdmi-state-helper: Force modeset on colorspace change Jan Claußen
2026-10-18 12:30 ` [PATCH v3 3/6] drm/connector: hdmi: Create the colorspace property Jan Claußen
2026-10-18 12:30 ` [PATCH v3 4/6] drm/bridge-connector: Pass supported colorspaces to the HDMI helpers Jan Claußen
2026-10-18 12:30 ` [PATCH v3 5/6] drm/bridge: dw-hdmi-qp: Forward supported colorspaces from platform data Jan Claußen
2026-10-18 12:30 ` Jan Claußen
2026-10-18 12:30 ` [PATCH v3 6/6] drm/rockchip: dw_hdmi_qp: Advertise BT.709 and BT.2020 colorimetries Jan Claußen
2026-10-18 12:30 ` Jan Claußen
2026-10-18 12:41 ` sashiko-bot
2026-10-19 3:19 ` Chaoyi Chen
2026-10-19 3:19 ` Chaoyi Chen
2026-10-19 10:40 ` Cristian Ciocaltea [this message]
2026-10-19 10:40 ` Cristian Ciocaltea
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