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Mon, 06 Jul 2026 02:38:00 -0700 (PDT) X-Received: by 2002:a05:622a:13cd:b0:51c:f3e:781e with SMTP id d75a77b69052e-51c4be97d68mr86772871cf.6.1783330680497; Mon, 06 Jul 2026 02:38:00 -0700 (PDT) Received: from [192.168.120.193] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c12b60575c4sm709337566b.9.2026.07.06.02.37.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 06 Jul 2026 02:37:59 -0700 (PDT) Message-ID: Date: Mon, 6 Jul 2026 11:37:56 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 5/8] arm64: dts: qcom: Add GPU support for Kaanapali To: Akhil P Oommen , Will Deacon , Robin Murphy , Joerg Roedel , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Marijn Suijten , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter Cc: Sean Paul , linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, dri-devel@lists.freedesktop.org, Dmitry Baryshkov References: <20260705-kaana-gpu-dt-v2-0-6ac53de56314@oss.qualcomm.com> <20260705-kaana-gpu-dt-v2-5-6ac53de56314@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260705-kaana-gpu-dt-v2-5-6ac53de56314@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Info: AW1haW4tMjYwNzA2MDA5NyBTYWx0ZWRfX/J9Tt3UlXgeW tivTTcnav1xHvDzaPa/siIfXjg+fA9o6itQiFN9pEoh0+8Sr5vc7Z2qRKqC7/aNKsw2QM/zNoef PMtS7DglLHWdPLmNSn4O+sadu23faVI= X-Proofpoint-ORIG-GUID: p72oP_7Z0vFy9JLLj4LpjxS_kMs2vLqw X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzA2MDA5NyBTYWx0ZWRfXzHXRSztOXmyv JWBY6qpXNRXnLfgQFs97VicSCWt5tnN73e9Wy4m2FlDFVuCukvc7rBR9RhE1tlnu+Y376UsdDwN mumD73qN8/hKfW2h30NCwEktW624TxHNcQLmOxCk3HibfsbM8e//X8kdBXFjCYe7D5aHv3kmvmJ cPbXbEhMoxg5Tm8pg+GM80JuQe8YYI4BLHEjU2aq6l8aYrsoWYG3J6DI3pbAc3q/sme3I+iItyJ lbA5UngbtCZDKceVMAa2CyLvZfiHFamF5aHe5BocHO9CKZUwDe8ePecjTy5wkOqyNRnelWFtayl 4VB/Rzc66xwWGH8+WGeNeVeU0PCrzlK+jX/Rp8kVKg+aOoJ5gZ/8zdYaKYuGr7dw2uozfBiX0mv zjTJ9GwPbhmSM0XeOlyRHCpMDLEykU7yQIi76KDApZukeFKNiEOURk0E/SHh2Rf2J8upLfqJmPq 7OlCYeQ1CQuDq/MUzdg== X-Proofpoint-GUID: p72oP_7Z0vFy9JLLj4LpjxS_kMs2vLqw X-Authority-Analysis: v=2.4 cv=ZfQt8MVA c=1 sm=1 tr=0 ts=6a4b7779 cx=c_pps a=UgVkIMxJMSkC9lv97toC5g==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=EUspDBNiAAAA:8 a=z65YV3W3F_EkYOo9s_QA:9 a=QEXdDO2ut3YA:10 a=1HOtulTD9v-eNWfpl4qZ:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-07-06_01,2026-07-03_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 bulkscore=0 impostorscore=0 adultscore=0 phishscore=0 priorityscore=1501 clxscore=1015 suspectscore=0 malwarescore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607060097 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260706_023802_659983_14C35721 X-CRM114-Status: GOOD ( 15.57 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 7/5/26 10:00 AM, Akhil P Oommen wrote: > Adreno 840 present in Kaanapali SoC is the second generation GPU in > A8x family. It is based on the new slice architecture with 3 slices, > higher GMEM/caches etc. > > There is some re-arrangement in the reglist to properly cover maximum > register region. Other than this, the DT description is mostly similar > to the existing chipsets except the OPP tables. > > Reviewed-by: Dmitry Baryshkov > Signed-off-by: Akhil P Oommen > --- [...] > + qcom,gmu = <&gmu>; > + #cooling-cells = <2>; > + > + nvmem-cells = <&gpu_speed_bin>; > + nvmem-cell-names = "speed_bin"; This looks good to me, but I thought that on a8x, we're supposed to use the freq limiting register in CX_MISC - is either of them preferred? Or are they just hardwired to the same thing by chance Konrad