From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 71978CCF2E3 for ; Mon, 19 Oct 2026 10:40:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=oGPRJMVULESKCLgKGUncmikFBtRlPF3i2dr81yltnqk=; b=lPE73IQmAeyzFIj8GnsHlE7SY9 YP9TXrK+5hDRyxb01G1CeeW1YwPoz9qJmRugZ1ZnMwloa1IGriSjryRVi0R1PHSAf/4V/jRWbqd70 5aIaZfeMe77hs+rZ8VV4QOegYSNay+PAjeyxtLi8me0ABKRUvclUoSjrMGcVPUr00J0akXUdsyBKf +7P0n5qdY8DOTOgOoMfPpnYzocbE8jpkKfxlFq/kbIc9W9tyT2hwH409VBy5LElCV/lCTII14uCL2 WNlq4gXPW9n8IHBBMQBMmtMs4dh47MpY5uP0zZ17fNadguDn5BOhRM5f0GoIXJK9JwMtXHKdKb5GG Ete4PLZw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xIknR-00000007DkE-3G4u; Mon, 19 Oct 2026 10:40:49 +0000 Received: from bali.collaboradmins.com ([2a01:4f8:201:9162::2]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xIknO-00000007DjQ-2l2i; Mon, 19 Oct 2026 10:40:48 +0000 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 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261019_034047_547178_040F6DF6 X-CRM114-Status: GOOD ( 10.95 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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