From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6DF0848F828 for ; Mon, 19 Oct 2026 10:40:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.105.195 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792406445; cv=none; b=fjf0qJmuScBUqlYvHuaKH5BmRACr2WEccpFDtS1gzZRXvkGAk/iAxK62hdTwxAMZsHEP7DVHwhRuvjxz2YrHbb2hZ8yATSR4iOJ8u/9fHUnUdYwZTVHViLyy1TN+yHc5dCV22HVzFhTirlFedX9Cw1DBgFuM/+b4oDOv7W3tCe8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792406445; c=relaxed/simple; bh=q6N5Aio8FeUee+E5prkHvtU2XRa+2nEtmXw5f1D/Naw=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Z2uoLU4ovjFdX/QQvejHqn6mlhFKtI8NoHTkidZnGFlUAZ+1L8hmTMR3NS5M7Mf7pzuwhNY4XHE7rXVfLI+YESJroxmiFEu6qOmCMsgradOJq/Y52GybJ6xzCXRvrU2QTKV4ZAuACOToZvDh4IZL1cBWg11YfcRSfcQDAjD4avM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=QcW07TuK; arc=none smtp.client-ip=148.251.105.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="QcW07TuK" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1792406442; bh=q6N5Aio8FeUee+E5prkHvtU2XRa+2nEtmXw5f1D/Naw=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=QcW07TuK1MwNhKhje1WJ+t3EqobvIzT4fFt8pAfQq1Ry+KN3bfWOxfxsjs65IfEmk ZrxC/F2ps+CsAzZctOfBCOPkmyBxqWcSkrmwQu0toqCT66A2BbUUpIQ1XipUslbcIp PxJVqnf72ATj0HUPRKkVC2ePYl5bufxR2sN6NZoRqtICeDZY651Yo6IvSasYq/e5M7 ANGyJfDkRiGMApo9VfGg6OOyNfojbu06tMsB0q6B1cUJlWN8Ub2NKabuXPgRv2c3ga AYq8+JewqBnT9JkTAWaI0wvzZGwDqAf36KNNE0hgpthO/SN0uSfXGpsGx+X4zgYdWH JIXlJmD21RpoQ== Received: from [100.64.0.241] (unknown [100.64.0.241]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: cristicc) by bali.collaboradmins.com (Postfix) with ESMTPSA id 0DF6C17E0908; Mon, 19 Oct 2026 12:40:42 +0200 (CEST) Message-ID: <1c2c222f-53fa-496c-a8ba-9717beb6dcf3@collabora.com> Date: Mon, 19 Oct 2026 13:40:41 +0300 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 6/6] drm/rockchip: dw_hdmi_qp: Advertise BT.709 and BT.2020 colorimetries To: Chaoyi Chen , =?UTF-8?Q?Jan_Clau=C3=9Fen?= , Sandy Huang , =?UTF-8?Q?Heiko_St=C3=BCbner?= , Andy Yan , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter Cc: dri-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org References: <20261018123037.19560-1-jan.claussen10@web.de> <20261018123037.19560-7-jan.claussen10@web.de> <039f91a1-7944-4092-9f9c-29b60e8fb17a@rock-chips.com> Content-Language: en-US From: Cristian Ciocaltea In-Reply-To: <039f91a1-7944-4092-9f9c-29b60e8fb17a@rock-chips.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 >> --- >> >> 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 > > 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