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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b8fc73f7c24sm446322266b.30.2026.02.18.02.31.00 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 18 Feb 2026 02:31:01 -0800 (PST) Message-ID: <590f75c2-6418-4d39-ba7e-589acdf98786@oss.qualcomm.com> Date: Wed, 18 Feb 2026 11:30:59 +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: 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, David Heidelberg References: <20260217-sdm845-hdk-v1-0-866f1965fef7@oss.qualcomm.com> <20260217-sdm845-hdk-v1-3-866f1965fef7@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260217-sdm845-hdk-v1-3-866f1965fef7@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: fU8zX_HIPVJBnRXQaW9vzdcB5i8S6rB9 X-Proofpoint-ORIG-GUID: fU8zX_HIPVJBnRXQaW9vzdcB5i8S6rB9 X-Authority-Analysis: v=2.4 cv=P5k3RyAu c=1 sm=1 tr=0 ts=699594e7 cx=c_pps a=hnmNkyzTK/kJ09Xio7VxxA==: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=EUspDBNiAAAA:8 a=SvsOOShjqf7P06K1ulcA:9 a=QEXdDO2ut3YA:10 a=PEH46H7Ffwr30OY-TuGO:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjE4MDA5MyBTYWx0ZWRfX3sGzGPFooj3g GfoDT9ele8ttRM9b92JRGhKy5xDtM59VmcaJOrTg9VR1QAh2gG3zLWX/rb8k2FbBKE/3Xl4MCI9 zv49YycC/H/4dEyz3XwrzBuD6IWpBkI/Ur3Ynf8+BzW/j3QLepW3qIiH/yjOVvzhR2WUyfF8cae 47JW8kBYPmkyfG0zZDBESbJG87yKQ1/O9vBMXvIF9Sw1wvmgtXa01shns5XwGXrckIcgzlTnt1s MeHJrFSZ/hwpE8ahRceGGDRth1kn/hUnqafD2XXO4y5Biwlc2Zj+YRgpaw7V9AjQhxMDdwMl7Dw 5TiX8ytdvL8FkZp0XSYDcbCXvf+DQVZHHCqXKgpUHLyIzDm2/6irhYUWnpicUZsg57q84R942PY vWhvDGFplAZXKo9/MPFnuPkXkjO8fMXaRjkamh80ZptLOB6s/ExbirfAurqOZliTgEKuapdn3jp j1YmcujBayDNrCgzHFw== 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-2602180093 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 Konrad > > Signed-off-by: David Heidelberg > Signed-off-by: Dmitry Baryshkov > --- > arch/arm64/boot/dts/qcom/sdm845.dtsi | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi > index bf2f9c04adba..75c192eddc57 100644 > --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi > +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi > @@ -4550,6 +4550,7 @@ mdss: display-subsystem@ae00000 { > reg-names = "mdss"; > > power-domains = <&dispcc MDSS_GDSC>; > + resets = <&dispcc DISP_CC_MDSS_RSCC_BCR>; > > clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>, > <&dispcc DISP_CC_MDSS_MDP_CLK>; >