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Tue, 07 Apr 2026 12:21:09 -0700 (PDT) X-Received: by 2002:a17:903:22c6:b0:2b2:4310:8d1a with SMTP id d9443c01a7336-2b28188a1cfmr192326385ad.38.1775589669313; Tue, 07 Apr 2026 12:21:09 -0700 (PDT) Received: from [192.168.1.8] ([106.222.229.237]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2b2749ce29esm193875385ad.81.2026.04.07.12.21.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 07 Apr 2026 12:21:08 -0700 (PDT) Message-ID: Date: Wed, 8 Apr 2026 00:51:01 +0530 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 RFC 4/4] arm64: dts: qcom: Enable GPU & GMU on Glymur CRD To: Dmitry Baryshkov Cc: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Rob Clark , Sean Paul , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Marijn Suijten , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org References: <20260405-glymur-gpu-dt-v1-0-2135eb11c562@oss.qualcomm.com> <20260405-glymur-gpu-dt-v1-4-2135eb11c562@oss.qualcomm.com> From: Akhil P Oommen Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: 0p8Jtey1-B8UN9aYnTuwduvPgJllvufU X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDA3MDE3NiBTYWx0ZWRfX235yyttEYWPs Uojeseqq8Ni03CRyEiH6FX9H5TMFTffYebtkxb3j1DxPW/KZy9NWbHcufYHxKLMt56MRKqtX7oL +7p0z04uT0wxD8l9Uf/Wdum4KgPqnUKnmyQRZ5ja5BvBTdJSFwTxx/7YrInVRNXF/KoagBIYh6r AfPWIfELHciVAncM+qWJJrTl4v2jmPwb/ju8VJ8Yh5Y/jffqG7STM/Oaf33n4DfWmf3XARq+ILO QSBQnTny/CXOs0eHLSjMwFOWWVPMDVw3BAUOwMk0f0lFZMSDGMYun0Thh4ENEzhWsVP0H3yKHBr 0ZJaMBryBPvMzjj1t2R8D8GHOUWLfbTFb/FuUk+T+HGTS/hckU8QIyN4lsYW/zgzan2LF2NQ/yF rNcD2N7iMPpYShHcr3QgKjQmXsN6KTZJShbuIYXMYulGmSugkodrHlPSPA+GQ6HbIoLxXREwcxY n2NLo3kz7/QfoulFTtA== X-Authority-Analysis: v=2.4 cv=AcaB2XXG c=1 sm=1 tr=0 ts=69d55926 cx=c_pps a=MTSHoo12Qbhz2p7MsH1ifg==:117 a=oIjhDLspr5RTlLLUpj0f1A==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=EUspDBNiAAAA:8 a=8uCpHmCzy03A3Vi_SyMA:9 a=QEXdDO2ut3YA:10 a=GvdueXVYPmCkWapjIL-Q:22 X-Proofpoint-GUID: 0p8Jtey1-B8UN9aYnTuwduvPgJllvufU X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-07_04,2026-04-07_05,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 adultscore=0 priorityscore=1501 bulkscore=0 malwarescore=0 phishscore=0 impostorscore=0 spamscore=0 clxscore=1015 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604010000 definitions=main-2604070176 On 4/5/2026 3:14 AM, Dmitry Baryshkov wrote: > On Sun, Apr 05, 2026 at 02:33:17AM +0530, Akhil P Oommen wrote: >> Enable the necessary DT nodes to add support for GPU on the Glymur CRD. >> The Glymur CRD boots Linux at EL2, which means it doesn't require the >> secure GPU firmware (zap fw). > > Is this going to be a default mode for other laptops too? Otherwise it > might be better to keep ZAP node enabled by default and disable it here. I believe so. Anyway the laptops are hitting the market right now. If anyone reports that the EL2 is locked down, we can revisit this. -Akhil. > >> >> Signed-off-by: Akhil P Oommen >> --- >> arch/arm64/boot/dts/qcom/glymur-crd.dts | 8 ++++++++ >> 1 file changed, 8 insertions(+) >> >> diff --git a/arch/arm64/boot/dts/qcom/glymur-crd.dts b/arch/arm64/boot/dts/qcom/glymur-crd.dts >> index 51ea23a49b9e..a579df902323 100644 >> --- a/arch/arm64/boot/dts/qcom/glymur-crd.dts >> +++ b/arch/arm64/boot/dts/qcom/glymur-crd.dts >> @@ -110,6 +110,14 @@ vreg_misc_3p3: regulator-misc-3p3 { >> }; >> }; >> >> +&gpu { >> + status = "okay"; >> +}; >> + >> +&gmu { >> + status = "okay"; >> +}; >> + >> &i2c0 { >> clock-frequency = <400000>; >> >> >> -- >> 2.51.0 >> >