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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b8fc7629b56sm458895166b.37.2026.02.18.03.24.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 18 Feb 2026 03:24:28 -0800 (PST) Message-ID: <9405b67b-9e08-472d-a937-38c038fdf73a@oss.qualcomm.com> Date: Wed, 18 Feb 2026 12:24:26 +0100 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 3/4] arm64: dts: qcom: sdm845: Add missing MDSS reset To: David Heidelberg , Dmitry Baryshkov , Bjorn Andersson , Michael Turquette , Stephen Boyd , Ulf Hansson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: 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> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: byTexnXvHOmLNGJNe_KqXiIxbrdQFJwS X-Proofpoint-ORIG-GUID: byTexnXvHOmLNGJNe_KqXiIxbrdQFJwS X-Authority-Analysis: v=2.4 cv=P5k3RyAu c=1 sm=1 tr=0 ts=6995a16e cx=c_pps a=oc9J++0uMp73DTRD5QyR2A==: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=QSeG49lCECCrRmREOcMA:9 a=QEXdDO2ut3YA:10 a=iYH6xdkBrDN1Jqds4HTS:22 a=EWLf6cg6Bh5aS0AxDgDu:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjE4MDEwMSBTYWx0ZWRfX78Jr4RvZSYNK iMYWOjsLFlD0EYwKoZwRmCaYXQDct8/ZDJGuMleSVWJQ/nBhQZ/8wIqSMY70BIGcWlybKAT2Fx9 qKEs2w9ccbceA4Rdn0+YJj1p6HpWK9z1Lp1TntTWY4UvIh6N1DbP13Y2lYyNlyCqRgjp2F/sxV8 K+MnhsjsVVDjX1uFOpLSXj1SF9f+nvYzI0mW50xR1EEyu0vvjdTI542P79ezhgQUwq0YXvBjwfH mD7z3Me4jEqtNHrY+PhHqn8PPAh+HnkZHggmyUZJjiYpp0mOB0ayeUWNo7rhEMqSdbd8J8ILyJ1 wBZl91d4rT+0o4QXAQL3Q6tzJTwMOlDx7I0GMJIvKB+bUuT4I0oOqzNtdHtVejhJTYofc3iD5Ea dxJQ3DqMlF8vyFGLnjp3E3XUMqJ1gHa+FPgvTnTkvo9Sp24uvBfAVLCnrGGYc7beYgS3kipnVd5 i5faQSsdTeWpHmHTg6w== 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_01,2026-02-16_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 phishscore=0 lowpriorityscore=0 clxscore=1015 impostorscore=0 bulkscore=0 spamscore=0 suspectscore=0 priorityscore=1501 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602180101 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 Konrad