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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b9b2044274dsm230081066b.59.2026.03.27.04.09.22 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 27 Mar 2026 04:09:23 -0700 (PDT) Message-ID: <08e43485-7570-497f-9f2f-1ce4fc7ed6fa@oss.qualcomm.com> Date: Fri, 27 Mar 2026 12:09:21 +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 v1] arm64: dts: qcom: hamoa-iot-som: Add firmware-name to QUPv3 nodes To: Xueyao An , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260327085318.2771771-1-xueyao.an@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260327085318.2771771-1-xueyao.an@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=NenrFmD4 c=1 sm=1 tr=0 ts=69c66564 cx=c_pps a=EVbN6Ke/fEF3bsl7X48z0g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=EUspDBNiAAAA:8 a=B4HikTB3W-0rk1GVoTwA:9 a=QEXdDO2ut3YA:10 a=zZCYzV9kfG8A:10 a=a_PwQJl-kcHnX1M80qC6:22 X-Proofpoint-GUID: g_nLNDYi3LWopPE6JfeKeRkyHhb722y8 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzI3MDA3OCBTYWx0ZWRfXw7eEew4rjY22 gqwmxXrMdU2Ytr1LNY4Z6UX6KSoRmFIaxSz7vzTHS6S0KDkjnT2fRaUfYah6anXNeKAxwHuzDpt F5HTa9JjO3Ra16BMxm4geK6Tm+rMXD+Gt6TKnzzf8bz6fWR9OyKYuOxzQ4Ht4IqdMQY1RjGKepS 0edwr2RKdY5als3DB9xdKg6DuTwro82ZxsfBMlGiibriOaKk+lDZiQ0DyMHZIjEzTIOGU75cib6 Bl538dH4PH/XboMnTQR3cHm5Oo/PKKcP96XCqM8zpXhzo7oATk7JQ+RliAA6eusI1hZrjzAXDni Up8NTTo7NIDXLx+6A7IGRNeOcabxC0c4C9/37MKfJDGtMhJ4nLHUGRwgSBheWbzdmnmT9jWh4Qa MA7rOXXltgHZOrwVk7LOz38Ir1UZ8AeU/nSsF089khhzbDKr6BFG50EXkCnd9spAu2WeT92LLGx F69mEOWOWAyUk5jdo4g== X-Proofpoint-ORIG-GUID: g_nLNDYi3LWopPE6JfeKeRkyHhb722y8 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=2026-03-26_04,2026-03-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 spamscore=0 priorityscore=1501 phishscore=0 lowpriorityscore=0 clxscore=1015 suspectscore=0 adultscore=0 impostorscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603270078 On 3/27/26 9:53 AM, Xueyao An wrote: > Traditionally, firmware loading for Serial Engines (SE) in the QUP hardware > of Qualcomm SoCs has been managed by TrustZone (TZ). While this approach > ensures secure SE assignment and access control, it limits flexibility for > developers who need to enable various protocols on different SEs. > > Add the firmware-name property to QUPv3 nodes in the device tree to enable > firmware loading from the Linux environment. Handle SE assignments and > access control permissions directly within Linux, removing the dependency > on TrustZone. > > Signed-off-by: Xueyao An > --- Reviewed-by: Konrad Dybcio Konrad