From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (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 CD67E4CC624 for ; Fri, 25 Sep 2026 15:29:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790350187; cv=none; b=h822IllfB60jAW0cgX9tChx5cjB4loekz3XgAHMFOB17edk4tb0zY96K9Xv0IEniWbCdZPAeXavkJ/2qqKLoFasO43ySH/FJiXX9bA+dUK3kY5ibWsGlykXVXHuT3XndI0JYVAmyl4bHSFutz8TMSRZEVGPUlsAEzRBPxDtmUqU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790350187; c=relaxed/simple; bh=upblnXNb+p2KtLS8GurcmAtzvFFSYd4j6PFmlGgUicg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=MLn+4NixLpVjX846Y3x28RpCc5A+77xIwdCb/wp1FhCA45i5462wP1SiI3Zw5WUQ4xA/3hO6RnKYnQJn58lWZN5oxBUOLQOo9nIx45yCI7I4hSlcTtcnkKyj8H9LvFq0Z1YEriga0yPe+jTcqMY5Pk90hUDLMWlJuVhASpuYu7E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b=W/MHFSkB; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=Q+tAkuBa; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b="W/MHFSkB"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="Q+tAkuBa" Received: from pps.filterd (m0279864.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 68PDKhSq2911644 for ; Fri, 25 Sep 2026 15:29:45 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-type:date:from:in-reply-to:message-id:mime-version :references:subject:to; s=qcppdkim1; bh=EugQq82UdCAjcqop/r7zwdrt /Yc1q9zAWsDcJB9IHDQ=; b=W/MHFSkBdsCw9c2KQmz/KGAY3vAaZNc4yS/AEkn8 VYlLY/yyn+SLqyp28hFYzS9vF+x1U28X9OmBVqMit6/9ZpK6eKX3aLa/HFOcfo73 xYJRCEYMnImNx/rT6YInlQFfs8i/OoGF9jP1ToshJj9SPTR+EMyURpRHj7eC/yky oVYiG+4WGrb/mTs/swKbo7ROa7H/h+fTH0ZxxnmDc1BiwaJxaoXP7EcmhGT2KIfi cue2cpXBSVS5E9Fd8PwyrgyULvv4ON9LmqNAKuJrXTMhExASM4Ivhm7XoeKLtzMK A3Iei8AnSc+cpPY6KEnrdcImp7RAkQ6WSe6E9y8fllidqg== Received: from mail-pl1-f197.google.com (mail-pl1-f197.google.com [209.85.214.197]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4gwhm5257b-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Fri, 25 Sep 2026 15:29:45 +0000 (GMT) Received: by mail-pl1-f197.google.com with SMTP id d9443c01a7336-2db8e9fe9c7so9599295ad.0 for ; Fri, 25 Sep 2026 08:29:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1790350184; x=1790954984; darn=vger.kernel.org; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:from:to:cc:subject :date:message-id:reply-to:content-type; bh=EugQq82UdCAjcqop/r7zwdrt/Yc1q9zAWsDcJB9IHDQ=; b=Q+tAkuBaqxiSfLYd8XGLW6kphzDgi3ANHRy+SMT24XvdCn7KWXd/pSM/oB/qGenHGY Xe4sJgQ8gFRfRcXzzlA795weeY89TtprS/Ou65GjlyahFVHvM92jIVsXSNXlGGNR3Yf6 URBMy0C/kWVjTBKaU4gh55nXPypk2dozk+vKe4U3fSfVkDG323wWOZSY8juGG1/lwp/G QizhsLiNnU3Y3ay1dZ5OO892G+8AjIZGA0cOyEIBbLFa4weQTyyQrVFDQtJTTsPZY9P7 zLd4NkI1Lf/4OWCzv9OcWCndzzXzei0jAg0jOTXNtnhUORQuOtyuc938/F6V/oxVUyk6 dzrQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1790350184; x=1790954984; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=EugQq82UdCAjcqop/r7zwdrt/Yc1q9zAWsDcJB9IHDQ=; b=x01ZTzkBuJL6vC6vUjT42qN8dpbF0EtGiQl0w1ELgYOZdZz5zcIyB8Vn6hvmq7dmy8 hLbeVdA5y+0GYQjiHKhbUCMfqrZRx07iQiRY7RP90gPfhz+NxoM0OB6n6VuLsgrsYmUT iOhVNkdwL2cIQOzU15bqEVD5L8mNEp9v1dP3D6BHIDSQxOziS4G0UNOZSdmCTQ+5HEPM UUExHCQhtjPVc+CXM4LoHUNwNia1zPQnj+u7ngqNs1q4J1HVlfdBt25qb+FprHdPbX7B 3ulO49IhXpSaGaL5ayC33DC80UOqLnDDAU1WXVODqz5IkeYDwdKw2fSAXestB1N8vaRL vc7A== X-Forwarded-Encrypted: i=1; AKwUvBxLYAMqhGqE3wBA1rZoL0mtk3Uds+Rq2HOiBcH8+fMB9pL2DmqOUNCtcJcaq0q2rkdAfw0loNddWbE=@vger.kernel.org X-Gm-Message-State: AFuF++kyJLmBOtLdDlXBomEce/aJIxK4MhT1jmDWuVlD0RZZFmVb/les VZVlVM8yvF1QhSAUy9X6RQ+SVWG6Y8UBeGavTUdhiG4KQo4ZvwuAjbU+ve3Df+kF3Iv/S0nX+nL YX0GHy+GKMfI+5SN0bi3tGuV0ReccLcS4FYDtMmlAw8weuebz01TKXB2M6yNtL6c= X-Gm-Gg: AYBFou0nf6oyqZFssZtKnWvZriPPod/5cshxjsHkKY/dCNQPXqa2MYtrblF9OmLo0ZV SxJrpBngP7HnYGCKcI/hY85rezFPHrNyFNRVBooFJJ+vXEur+zujwwLDySceE7B6deaVOACJORE Z6RMqSuNyFumbMldxNqALyvHMGcP9NX1yRRwl10JSqT7eW8U/VslqyJuOKmrgamDydyGN9kj2pM 1iFOTaxOJbBXFhBSlw6Ny5J4Vs5N9PxKwRrf9NM0p+7CW+qPIE1sqnc4bnKJFah8CG+RxKS4CAu Pio9bGaKWh4Ofvfy5x2YfHIXCPS657mwnT30zohvWeTuCFPh0nYKQPgg56QRjPSsd+BETa/sXlu uG4G0iQU8Zh+CqtfUCxE7LNB0CPtIz4m7DuYWxbaa9A== X-Received: by 2002:a17:902:cf42:b0:2dd:ad74:ac7c with SMTP id d9443c01a7336-2df949937edmr18018785ad.23.1790350184110; Fri, 25 Sep 2026 08:29:44 -0700 (PDT) X-Received: by 2002:a17:902:cf42:b0:2dd:ad74:ac7c with SMTP id d9443c01a7336-2df949937edmr18018655ad.23.1790350183693; Fri, 25 Sep 2026 08:29:43 -0700 (PDT) Received: from QCOM-aGQu4IUr3Y (i-global052.qualcomm.com. [199.106.103.52]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2df91468978sm12693375ad.79.2026.09.25.08.29.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Sep 2026 08:29:43 -0700 (PDT) Date: Fri, 25 Sep 2026 23:29:36 +0800 From: Shawn Guo To: Abel Vesa Cc: Bjorn Andersson , Abel Vesa , Stephen Boyd , Brian Masney , Jerome Brunet , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Konrad Dybcio , Taniya Das , Jagadeesh Kona , Bryan O'Donoghue , linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 3/3] arm64: dts: qcom: sm8750: Fix videocc clock inputs Message-ID: References: <20260924161152.1162301-1-shengchao.guo@oss.qualcomm.com> <20260924161152.1162301-4-shengchao.guo@oss.qualcomm.com> <3l6v5idon2edkritzyqlmvdjn5ijt3lytp656sxicfnqah2rga@o6plxiv5d53u> Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3l6v5idon2edkritzyqlmvdjn5ijt3lytp656sxicfnqah2rga@o6plxiv5d53u> X-Proofpoint-GUID: k-m1_zxqmRoUzWAObjniAb8ZO_8iuqcd X-Authority-Analysis: v=2.4 cv=QYnzLcbv c=1 sm=1 tr=0 ts=6ab69369 cx=c_pps a=cmESyDAEBpBGqyK7t0alAg==:117 a=b9+bayejhc3NMeqCNyeLQQ==:17 a=kj9zAlcOel0A:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=DJpcGTmdVt4CTyJn9g5Z:22 a=91EBbpWxNo6HCqDt5gIA:9 a=CjuIK1q_8ugA:10 a=1OuFwYUASf3TG4hYMiVC:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTI1MDA2MSBTYWx0ZWRfX6Tlc9q69GPHw sEW7/LKJf4mh3Ao2Ygab8rSWHW/x54QX28sv7dbWIDozE+ymmNCdk57SHHv0+TessSmO8e/3lDm B61dzRb/X9PODYClcyLs7HcEp6WClzvu35aQSz5XsinPG7L46C9Fm1SDi6mQ43Aia4iCZ5vocFl W9XdjvmC9n1Hdlvs7FYdQgRFR7s6CZRuX7tWEqAR33rJCBUAoMsGfCYa+UoxTeEci9k03Ac6z7A I8WASKp+ZpoVdQkFG6TNPU32iNbIW/0dmv/hea/0fMN2GeDyLGRLYd6etmDe7PORKuy6kPAv/yO zDlL5usQZ0je1JfJzBxgYsc304HnDqtfL50Gjt3Cr4zFYem9bVp1oDwH+IV2mdKIsEJsI5/ADAR 9VtIq0VXeddz29zR4heZavncdyu84u4aNfldqMSVBwVY6JEXb3ASUBRFtzTRDAwU/VMfhj6Dljj PtvS6Omjf7OfVpJww9A== X-Proofpoint-ORIG-GUID: k-m1_zxqmRoUzWAObjniAb8ZO_8iuqcd X-Proofpoint-Spam-Info: AW1haW4tMjYwOTI1MDA2MSBTYWx0ZWRfX8mY+ZG6fl+C1 RHyg1NloEooLUtCiq6YTG46qADImMWy6fmKD8uxGN+lLuYSeRP63MB5O7A2/OcfEFDGKaaMW6fq cDp1C2UlrSStc56Jf2MJdcDpgQbVyqI= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-25_02,2026-09-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 impostorscore=0 bulkscore=0 priorityscore=1501 malwarescore=0 phishscore=0 suspectscore=0 lowpriorityscore=0 spamscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609250061 On Fri, Sep 25, 2026 at 12:47:16PM +0300, Abel Vesa wrote: > On 26-09-25 00:11:52, Shawn Guo wrote: > > The videocc node passes GCC_VIDEO_AHB_CLK as its second input and stops > > there. videocc-sm8750.c declares its DT inputs as DT_BI_TCXO, > > DT_BI_TCXO_AO and DT_SLEEP_CLK, so the second input is the always-on > > board XO rather than an AHB clock, and the sleep clock is missing > > entirely. > > > > The missing third input leaves video_cc_sleep_clk_src unable to resolve > > its parent, so it registers as an orphan clock and cannot be rated. > > The AHB phandle in the always-on XO slot is not resolved by the driver > > today, but it implies a parent relationship the hardware does not have. > > > > Pass bi_tcxo_ao_div2 and the board sleep clock instead. > > So videocc can still function properly without the GCC video AHB clock then? I do not have a sm8750 device to test, but I did verify the same change on Nord, and videocc can still function properly. Dropping gcc_video_ahb_clk as a videocc input clock shouldn't break sm8750 videocc from what I can see. - The AHB clock isn't a videocc input at all. The videocc clocks array is positional and the driver maps index 0/1/2 to DT_BI_TCXO/DT_BI_TCXO_AO/DT_SLEEP_CLK. - gcc_video_ahb_clk cannot be consumed anyway. gcc_sm8750_probe() leaves it always enabled in probe and never registers it as a clk at all. So <&gcc GCC_VIDEO_AHB_CLK> resolves to nothing. Shawn