From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 4BD8B28DC4; Tue, 31 Mar 2026 15:06:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774969617; cv=none; b=CwUJdVCCchzbCINKCyIWIk93BSJfZAmWmsIxuPQJWSCH6oXbI8yvQJ8bDnHK+OiD0D5COt9x+jUIRSb6UpVivf8Ct0AULwt9gnRu5mjZh4afC745ifkV3CpmZWerGkaJlUwuyulQ4XMeKqRQVR0yXNn8jJ6w2bfS34pBBeV/IYc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774969617; c=relaxed/simple; bh=K+7Ei9l6kbQASuWhhVp8KxBFxG63FkRYQBMsXtHcyYU=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=qJEKNigqM3bcpLA1OpxamcND26e3AwyyVudc3Zdj1X3NHILnPd2NZ6cL3Ts0d0I3/u5sLF0eFZJz7WydpF8ot86/ISD/Tbxer/Pp08el6GSc7zA377pMt9hiAYV4slCIXvhyEzd1km059Yzgb1N4wk3OFrjhPVYkrIkSDwbB4w8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Bvc6IH0G; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Bvc6IH0G" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 83A3CC19424; Tue, 31 Mar 2026 15:06:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774969616; bh=K+7Ei9l6kbQASuWhhVp8KxBFxG63FkRYQBMsXtHcyYU=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=Bvc6IH0GApwvzhM6jhr1HoMWyjekvOFEOvq/fw7ruGfUi7JqNWJ58ujhOWvzv7IVY ai+8auerjDWluMHszM2sOt85ErQA1EVDVGLj7Vq0/kzRjYG7cevWVT8yaxd8aFKflj ZToA/fYuzNn+nnHEFQqitLcMIaU+okZZ++7m6vERCZ7c+T5UJYUuHRkUSmXz9pIpzm MKPFRzCdZzMfqOAyGGTDBUIiU3VsCmLeQao77FgGngFlus7CaI5jpAnfBOfGUQdYY+ 9o6yY4To66B6LZ0sEuVUS0dv9N1XQLhTesvXAVL1ijKHBbku3Xh7SmaJjIyoq1X3Uj FAh0j8UVoP+8Q== Message-ID: <918785e7-ab35-4d54-a613-ca56de78cf86@kernel.org> Date: Tue, 31 Mar 2026 17:06:52 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH RFC 0/2] arm64: dts: qcom: eliza: Add display To: Konrad Dybcio , Krzysztof Kozlowski , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Abel Vesa References: <20260331-dts-qcom-eliza-display-v1-0-856f0b66b282@oss.qualcomm.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 31/03/2026 17:03, Konrad Dybcio wrote: > On 3/31/26 5:01 PM, Krzysztof Kozlowski wrote: >> On 31/03/2026 16:49, Konrad Dybcio wrote: >>> On 3/31/26 4:02 PM, Krzysztof Kozlowski wrote: >>>> Dependency >>>> ========== >>>> Depends on USB patches, which are being reviewed, therefore marking it >>>> as RFC as it cannot be applied. >>>> https://lore.kernel.org/all/20260331-eliza-adsp-usb-v1-0-d8a251be20c3@oss.qualcomm.com/ >>>> >>>> Unmerged bindings used here >>>> =========================== >>>> dispcc: https://lore.kernel.org/all/20260319-clk-qcom-dispcc-eliza-v3-0-d1f2b19a6e6b@oss.qualcomm.com/ >>>> (DRM MDSS bindings were applied) >>>> >>>> Description >>>> =========== >>>> I did not enable DisplayPort because it does not work on my board and I >>>> don't know why. I double checked QMP combo phy and other bits, and >>>> everything is looking fine, but still no USB display, so maybe I miss >>>> some other dependencies as this is early upstream. >>> >>> What was the furthest that you got? We can certainly try to help.. >>> >>> Got USB Type-C mode mux events? >>> PHY initialized and configured to 2/4-lane DP mode? >>> Are the AUX transfers failling? >> >> [ 43.975329] msm_dpu ae01000.display-controller: [drm:drm_dp_dpcd_access] dpu_dp_aux: Too many retries, giving up. First error: -110 >> [ 43.975410] msm_dpu ae01000.display-controller: [drm:drm_dp_dpcd_probe] dpu_dp_aux: 0x00102 AUX -> (ret=-110) >> [ 45.780383] msm_dpu ae01000.display-controller: [drm:drm_dp_dpcd_access] dpu_dp_aux: Too many retries, giving up. First error: -110 >> [ 45.780463] msm_dpu ae01000.display-controller: [drm:drm_dp_dpcd_probe] dpu_dp_aux: 0x00102 AUX -> (ret=-110) >> [ 45.780521] msm_dpu ae01000.display-controller: [drm:msm_dp_pm_runtime_suspend] type=10 core_init=1 phy_init=1 >> >> pastebin: https://pastebin.com/BVXy3Qeq >> >> Abel pointed me to the phy problems, so I focused on that. >> HSR says it is exactly same programming sequence as SM8650 >> and such was used. >> >> Just note, that we have ADSP remoteproc up, but no audio including USB mux, > > Are you talking about wcd939x-mux? Yes > > If so, you need that or the lanes won't be properly connected Ha! That would explain, although I had impression that with disabled WCD939x mux the SM8750 DP still works. Well, I don't have that WCD939x and it is left for other team to finish a bit later, so we can leave the USB DP for now. I will re-visit that when audio progresses. Best regards, Krzysztof