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 90F8F327C00 for ; Wed, 18 Feb 2026 14:28:06 +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=1771424887; cv=none; b=j4WZ7IjhlvZgig8l7VWAS8ti/FJHNsJ8/ITBciav2PpB5ISacQio46Wn5cfDWw786hI64883UfUT7CC+78W0mv6vSTtwZwhTfXp6DvL6JUbk9PJLbejv8Jw4l5jKvmCvFzR9ef2ZKhG6k4knZiD8VBjtqnKvrhXUhBVmz+x/NXM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771424887; c=relaxed/simple; bh=VBYSlHiXBQigpKuLOqCJSpXI17jitSCXW/MRiwTGM04=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=o7+lOIJg7BXn0mA1SArlSszCE1XiBL01j0Cn6NKZiVKzhgNVXXey+gcqraJ6YaKfEPXIFXhOJcYyJ79G87ChdyCq7Xh3WnbnMKmlipyGOp/vfLo/o4TtgqbVs0pdFGjlZN2u/LPEiuEk6IzOore9a07zinPWDrN1qcoQYVAqpS0= 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=To3kgjac; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=J7lJYz+N; 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="To3kgjac"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="J7lJYz+N" Received: from pps.filterd (m0279863.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 61I5L7va423694 for ; Wed, 18 Feb 2026 14:28:06 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= Nco15/hvpEVWF5GJyB1vsnLM+4t9gKYSHEF1NRxSzD0=; b=To3kgjacscBHjbCy JpC5NNI8ukp1EU9gZcwTiRJsc+Eb59a6VDyI+4yV7tKGg6msisx5MOrzyOgoWDB3 mEPMRt4CYXJVmPi71Z8KpjadnksqE0yBiDQarPrQkORiw6AcXZLEbLyt8vIA2h10 75Yh1aap3MZHczI4rAhQyGv1ALU9sBcYJF+gF1FfgfXZW2YpWNVGMmNH6LyAFDUO 9Z1pnnJ65YOX8LxslRVZOL4qsE6OAPi7drDrCJdM8oKaEjjOeHeDihGKzKvf4ICl HW5LU2wye3Cfc0PVu1z+4Hcw/5KPucFur2ird4HlKmdVfmhrmWmvaLKGGr/0vNGg uK98Mw== Received: from mail-qk1-f197.google.com (mail-qk1-f197.google.com [209.85.222.197]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4cd76e19jw-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Wed, 18 Feb 2026 14:28:05 +0000 (GMT) Received: by mail-qk1-f197.google.com with SMTP id af79cd13be357-8cb3978cdb2so390409985a.1 for ; Wed, 18 Feb 2026 06:28:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1771424885; x=1772029685; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=Nco15/hvpEVWF5GJyB1vsnLM+4t9gKYSHEF1NRxSzD0=; b=J7lJYz+NlebHIVhVqv2O4ncI+iorDDm/+44D4cRuWyKoZhbansqF/NQ1e8CmaRuq9o US/IV+QwSmNN56jIkuwGbH2H0y3e29/gaz78K5ts4+VxvgNICeTHmdT6/rj3cYhNL6Rn zWsf4TGEWDbObs+0NJC0YNnbgWZDC2DFJLTvVmpfBl4CT/gHU+KHs8LAA4cne8BGqZpt 9UySN1rA1CJPuzXp7ChVkSrki8xJqWUZlMfr7Dy4Jtm0wBCoAW7+UD9yyqONqV218DKZ TUFywd80qwpH0VdGKBULaoNFzJAeaek9E5aV1wipipefWRS32z5gL2alYa/yusO87e2Z 22vQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1771424885; x=1772029685; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-gg:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=Nco15/hvpEVWF5GJyB1vsnLM+4t9gKYSHEF1NRxSzD0=; b=SZcGCCgTUImzy3hRjmXNMPV1py+byFuGXUgnB8/tW7qNT+7+Awqe3e/T3RcQXOK4Pd /wG0GdNFTzGhkGcxOLNoA30L83vOoLncuYKfKZV7l0TgJGyek9ftwWbQwRX/1sY3A49A tzcvgIXcQUiYZ9oEUUvjvEKiBB9u/BYElGdhqsrl8rrOPrr27gu1vnM6M1hKHXMci1nO Ghg06p49QcykrxxPkdyOAxRA9mbXrsEBEn7jwcJQO4oUcTfoHyVOaEDWNLOsbb1bZakh 24nyD8CCU7nO/NcUfwjzyLJwNkSdKaDQtmSsiU9mfz1hzWwniv/89LiB755W6wB+OpNm b7rw== X-Forwarded-Encrypted: i=1; AJvYcCWIavfqi19Bz//kPWG44fhZ/cyrYy5KCgBkKP/YO252WylYok18Ag//yECTHRzxCHb9fVC7Yj6LVsVjk4J1@vger.kernel.org X-Gm-Message-State: AOJu0Yx9PL92nVXCVa5XjfDB/zzfmlqi7CL40F133+eyNj+4RUpJA7al eaqDeQzWas+FboWXL1pqf8bT11Wt5M0nfzILMKPDoesiJ7xw3YtxCzgAQoLEW+cY7GxotTuZBmW P501rr2waFFy14X/CseqRwRlkdjW/CnkjDwozLbnSXc1J89raa1DQrsRnmSUfVGvoyD7G X-Gm-Gg: AZuq6aJYlI2hcMS/qie1hXyrT8vlCCrhPfbtO0K3PXW4wszMpUp5r5X5jNMhs3xSPYN 0wE8Hxu1FoX8MBVFeHZboO+kBpNR6iXXiEoDAgRhCB4AhBaUzGy30ld99PEuw6wXgXvU9JF6KoQ f3V0689lYSZZv1ZZLJCWvwbUQmCvHS51O/9vs/Msv+tS+SVcucTtIh5XUJDtbXQUw+58TCLcnEr vvOm4JmxNznS9z6V33LjbczRpOH6tHmdLu4G4EIirs92Hla41gsnV+vK3Jl6d7aKmEkO7ENCeDO p0aC2/M45/dyGk4t0dpG5pYa1fxYUXwiBusGGiDNxzRO09uUdz4TD6CqKJ2j2T6sgpjZJyUQeJ/ BGI/v+0ab2H7OAeHrPtoOKZJEOYzp0VvhftLKLlwSOab4/Y0fyRlslJa2fC4WJvBnSpRAWgk4nV OCImZPZ/BIDjfRcQ== X-Received: by 2002:a05:620a:1a19:b0:8b2:df32:b900 with SMTP id af79cd13be357-8cb408303c9mr1726991085a.4.1771424884759; Wed, 18 Feb 2026 06:28:04 -0800 (PST) X-Received: by 2002:a05:620a:1a19:b0:8b2:df32:b900 with SMTP id af79cd13be357-8cb408303c9mr1726986385a.4.1771424884282; Wed, 18 Feb 2026 06:28:04 -0800 (PST) Received: from [192.168.0.242] (078088045245.garwolin.vectranet.pl. [78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b8fc766531asm458063166b.50.2026.02.18.06.28.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 18 Feb 2026 06:28:03 -0800 (PST) Message-ID: <9b4cb352-d1ed-402d-a55d-cce2d2fe1eed@oss.qualcomm.com> Date: Wed, 18 Feb 2026 15:28:01 +0100 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 3/4] arm64: dts: qcom: sdm845: Add missing MDSS reset To: Dmitry Baryshkov Cc: David Heidelberg , Bjorn Andersson , Michael Turquette , Stephen Boyd , Ulf Hansson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org References: <20260217-sdm845-hdk-v1-0-866f1965fef7@oss.qualcomm.com> <20260217-sdm845-hdk-v1-3-866f1965fef7@oss.qualcomm.com> <590f75c2-6418-4d39-ba7e-589acdf98786@oss.qualcomm.com> <9405b67b-9e08-472d-a937-38c038fdf73a@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-Authority-Analysis: v=2.4 cv=OKsqHCaB c=1 sm=1 tr=0 ts=6995cc75 cx=c_pps a=50t2pK5VMbmlHzFWWp8p/g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=Mpw57Om8IfrbqaoTuvik:22 a=GgsMoib0sEa3-_RKJdDe:22 a=SXzkmgPmAAAA:8 a=VwQbUJbxAAAA:8 a=08J7RLiMzDJDz8dl29cA:9 a=QEXdDO2ut3YA:10 a=IoWCM6iH3mJn3m4BftBB:22 a=EWLf6cg6Bh5aS0AxDgDu:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjE4MDExOSBTYWx0ZWRfX5No5jMt61Xmn T9ekIgpnbd32qr1W7QccUK94203oldTt04YmXittdUI2hp+R5d65F56O5fUQKaKpkEC+/12j8Wa Eb+1jzsvIHPaxGVIMr6Cj//Rv5e+vr8qVOGl9+De+TsZ4YS4el8Y9OwVL8Zfc5Gakrj5MLJThdC YDCvnbi0SgssergjcDkt1XZUYB3Ycdw+QQgCMwTij875AbnawPICPbn0yLoqn2Y/tmzooFFmpX1 SIlAM0f+iFVYkfBsI6XKmdVhaaNoSi5274rDZNW6FOagzyFx7FAxYOyTYjWlMxSHhgwZO8F7SvO x/P5/PCwh+NX/SW2T1oc5Jn3n9pdXAm00epfX55AIDQLPpgaN1pbPmgLuTotswe3X0iu9kSNHQZ 0kOTpcCvV4z4s2Nng9+ITCP37HMRI4eMADNre1CHfK73AsQlIiSMgtWGSZ0FjkPb6hw2vKylChb 6Si9NXKTiYzExNWBhAQ== X-Proofpoint-GUID: JeAvJcncttLnK-FRQZymuBtegmaCQ91I X-Proofpoint-ORIG-GUID: JeAvJcncttLnK-FRQZymuBtegmaCQ91I X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-18_02,2026-02-16_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 bulkscore=0 impostorscore=0 adultscore=0 suspectscore=0 clxscore=1015 spamscore=0 lowpriorityscore=0 phishscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602180119 On 18-Feb-26 12:58, Dmitry Baryshkov wrote: > On Wed, Feb 18, 2026 at 12:24:26PM +0100, Konrad Dybcio wrote: >> On 2/18/26 12:18 PM, David Heidelberg wrote: >>> On 18/02/2026 11:30, Konrad Dybcio wrote: >>>> On 2/17/26 10:20 PM, Dmitry Baryshkov wrote: >>>>> From: David Heidelberg >>>>> >>>>> If the OS does not support recovering the state left by the >>>>> bootloader it needs a way to reset display hardware, so that it can >>>>> start from a clean state. Add a reference to the relevant reset. >>>> >>>> This is not the relevant reset >>>> >>>> You want MDSS_CORE_BCR @ 0xaf0_2000 >>> >>> Thanks, I prepared the fixes [1]. >>> >>> I'll try to test it if it's not breaking anything for us and send as v2 of [2]. >>> >>> David >>> >>> [1] https://codeberg.org/sdm845/linux/commits/branch/b4/mdss-reset >>> [2] https://patchwork.kernel.org/project/linux-arm-msm/patch/20260112-mdss-reset-v1-1-af7c572204d3@ixit.cz/ >> >> Please don't alter the contents of dt-bindings, it really doesn't matter >> if on sdm845 it's reset0 or reset1, that's why we define them in the first >> place > > I dpn't think that will pass. Current reset is defined as RSCC, we can't > change that to CORE behind the scene. I'd prefer David's approach. Back when I replied, David had a patch that removed the current RSCC reset definition in dt-bindings (at index 0) and re-used that index for CORE, putting RSCC at index 1. Perhaps it's better to link to specific commits when making comments, note to self :P Konrad