From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout-p-202.mailbox.org (mout-p-202.mailbox.org [80.241.56.172]) (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 271653B2A0; Wed, 5 Mar 2025 00:59:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.241.56.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741136365; cv=none; b=e8qLwBrF7tqf3K3VAe6TxL/ERtM/Cil5W1bfOh0IcIm3PPhUEDWErNy7MT0rpFpHiWwbOlmL2QRGhcX1ELkCUUMtwICd+/pPqCQnpnw1u3eIXMRIB+pfr6/QaLrLnNezqYyoeX7iYQKjjznBMFlDL62HSzAHYHMBXLSzLYzvxYQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741136365; c=relaxed/simple; bh=WGKPn6Lcu1tG4HbdYtl5xUp2r4W2UHUW24ByLdVbBTM=; h=Message-ID:Date:MIME-Version:Subject:From:To:Cc:References: In-Reply-To:Content-Type; b=cdQmCX22biccRbk3PDbOESjOBjVpm3rjLQfqojpKCaSBHzN6NvRQKrRxkhlxOoSonlBI7LMt0qOgtsIPkbkYgz90Wv9lrecRRJdX3kkqc49C17QqZ46npyFSM2oNd/8ipdx+0Z035WFa90094MTrkodMNpu0zR0XpkSsbeunlCQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=timsurber.de; spf=pass smtp.mailfrom=timsurber.de; dkim=pass (2048-bit key) header.d=timsurber.de header.i=@timsurber.de header.b=vvcv9+3r; arc=none smtp.client-ip=80.241.56.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=timsurber.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=timsurber.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=timsurber.de header.i=@timsurber.de header.b="vvcv9+3r" Received: from smtp1.mailbox.org (smtp1.mailbox.org [10.196.197.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-202.mailbox.org (Postfix) with ESMTPS id 4Z6vMM6CMnz9sDC; Wed, 5 Mar 2025 01:59:11 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=timsurber.de; s=MBO0001; t=1741136351; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=g+ZY31mwMBYNXiIDfFFLjYMHOtlHQsLzWF/C7XP8dnM=; b=vvcv9+3rtspBvWyfZd6velSRmXfLID17p/InXKYl9N97k4TH1SlVuFJDhQjeok5AkhX/WX s3sJAAc1XP+kL7DxiE1JSNbkqCIVCCYyeSTWbQifym1Tmt692SE18dD/h5EMvn6dWqgQl9 M077dUIs+njiATNFzRS/HPYSg3otL4vkDhmLR725jzJ+qFKYy2h0Mu/mzMXv6Zatbu4Qqz byoo3EAzCIrFFflGo+RAYV9BDVS8meiDs+PuaMAuFXNcrKwYqk62ZC2h9DbG1owOBBaVNE 2gLnTshZQKz6pCSSKmhtw3EIp51GFBzG8oYtE6EKzQuguabsiv9i5Yhm2zZ6xA== Message-ID: <1039aca7-89b9-44ef-9775-e7852e956362@timsurber.de> Date: Wed, 5 Mar 2025 01:59:07 +0100 Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: [PATCH v13 0/6] Add Synopsys DesignWare HDMI RX Controller From: Tim Surber To: Dmitry Osipenko , Shreeya Patel , Heiko Stuebner , Mauro Carvalho Chehab , Hans Verkuil , Rob Herring , Krzysztof Kozlowski , Conor Dooley , jose.abreu@synopsys.com, nelson.costa@synopsys.com, shawn.wen@rock-chips.com, nicolas.dufresne@collabora.com, Sebastian Reichel Cc: kernel@collabora.com, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, Christophe JAILLET , Diederik de Haas References: <20250304085819.108067-1-dmitry.osipenko@collabora.com> <78ff36f6-01a7-4df4-b653-c4509fb93af4@timsurber.de> Content-Language: en-US In-Reply-To: <78ff36f6-01a7-4df4-b653-c4509fb93af4@timsurber.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi Dmitry, I did some more testing. That the Apple TV did not work was a bit misleading. It was just, that the Apple TV defaulted to 4:4:4 Chroma which does not work at all for me. (The same happens using the vendor driver). When I changed the EDID to match the vendor driver the HDMI handshake happened with 4:2:0 chroma, where I could verify even 4k60fps using your driver, nice! So the remaining problems I see are: - 4:4:4 chroma not working in any resolution - 4:2:2 and RGB not working in 4k60fps (is this a hardware limitation?) A possible workaround could be to disable these non supported formats in the default EDID. Best regards, TIm