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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b9b7b22530dsm416060266b.54.2026.03.31.08.03.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 31 Mar 2026 08:03:39 -0700 (PDT) Message-ID: Date: Tue, 31 Mar 2026 17:03:37 +0200 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 RFC 0/2] arm64: dts: qcom: eliza: Add display To: Krzysztof Kozlowski , 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> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzMxMDE0NiBTYWx0ZWRfX9f4reLnzo5Dp Fv7CyFAUrfzZ358O/KPR/Z2pSjOhb2PiPYUc3xeXpFjLk1MyDar7qhVzn8rqQaUDo6SxktXx13F XPJhEe14CN78llU8WWGrrBhQbKLOMi40JcabEot1VQcA/T7+H8Ps3JyrkFd+4aEsPoKtRnILqMS wAYWw5qzyV5jTdJBzLysRhEXglZRIpW8swZj02YnVZ8Y8gIb7r587ft64KWrGo4hK8ISN03Wkg8 CAtVZUW1Iycjdd22CF4gxD2Iwc87yRsTOzmd5eoJLDpBYeevTl0nGg5N41XYJcxTCsCxqnQpsuG fo1MBqxhN2Pn4LwLO3YmD/xOnTW/bJ4BCrpbObnE74/ZtWQdo9wmrFGG0Vt7UnER0LZVwp/fkB3 R9FFSbAwfNSPNur74TImXSl9KVj/CdO34FByeWAtfcME7VIO2GWd4QXG1XUfdx++jURH6tAkXuE UcN/YW9mTc5T1y4yKkw== X-Authority-Analysis: v=2.4 cv=K4wv3iWI c=1 sm=1 tr=0 ts=69cbe24e cx=c_pps a=P2rfLEam3zuxRRdjJWA2cw==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=fGO4tVQLAAAA:8 a=BFScfxxKtYKQDNOg7CsA:9 a=QEXdDO2ut3YA:10 a=ODZdjJIeia2B_SHc_B0f:22 X-Proofpoint-ORIG-GUID: s0p12fOCaAvQP9nnOgoQG63ipltDObFn X-Proofpoint-GUID: s0p12fOCaAvQP9nnOgoQG63ipltDObFn X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-31_03,2026-03-31_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 clxscore=1015 bulkscore=0 priorityscore=1501 malwarescore=0 spamscore=0 adultscore=0 impostorscore=0 phishscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603310146 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? If so, you need that or the lanes won't be properly connected Konrad