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[199.106.103.52]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3140e6a714csm10040857eec.14.2026.07.16.03.16.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 16 Jul 2026 03:16:48 -0700 (PDT) Date: Thu, 16 Jul 2026 18:16:43 +0800 From: Shawn Guo To: Bjorn Andersson Cc: Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bartosz Golaszewski , Deepti Jaggi , devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Bartosz Golaszewski Subject: Re: [PATCH v5 5/7] arm64: dts: qcom: Add device tree for Nord Embedded variant Message-ID: References: <20260709132013.4096850-1-shengchao.guo@oss.qualcomm.com> <20260709132013.4096850-6-shengchao.guo@oss.qualcomm.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzE2MDEwNSBTYWx0ZWRfX49L87viMmcl3 tYMCZq7Q0kpnryMQVUMGs5mvygSPkdQh5ximmbw4XlBbRi8M/mxMCX7g5Vo/iRmv9IKo3qNXO1B 7Z26ZXhMgM/fOuhLzED47omR6LA4V5ge279dnE6y0otpUCxM0mLYkDSch0SCfNb0f9+KOdjzkbE irAivh0LJBqJ5CwE55mYr6Ew5WeHYR+HZT4l9K/p3pxNZRp+TaFjGXndRzNqVeqLSmeABtsfIYa SVCebCbLAzCIyT+BPL76VGGVg8XioSpyM7qt5Tqa36ZEaOkLW37NotYbB390WQJHhzu2ABIGaDx dDLKDvn2cGIBGuCqskjMe1wON6iqmFJ/lpad+KOuX3a4H0j/A3q+/d8mBgIjIG6DNof/barDJYh Z1gWlUyXFlAVbZ04rZvB8LU8riKgzV1GAqZMVPonbljcYUZ6KKR/ykuic5V2Esiyc8vZFSpV2lT cWcBIPk6u6Yx5OJROUg== X-Authority-Analysis: v=2.4 cv=WrEb99fv c=1 sm=1 tr=0 ts=6a58af92 cx=c_pps a=Qgeoaf8Lrialg5Z894R3/Q==:117 a=b9+bayejhc3NMeqCNyeLQQ==:17 a=kj9zAlcOel0A:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=3R0XHGMZ4LtOtzR3qNoA:9 a=CjuIK1q_8ugA:10 a=x9snwWr2DeNwDh03kgHS:22 X-Proofpoint-GUID: _Mfnxcdx40w6nRM0X4IBJxLa0eA5fTSJ X-Proofpoint-Spam-Info: AW1haW4tMjYwNzE2MDEwNSBTYWx0ZWRfXxNcjatswVLbq aAKYw8g0QArjXfcp3HRF+bPbr5fYewXMELVlEhE9avdLqxXw40BrshF6jOCZLa/2RTLJIIPCM6M 59eLdSG5T6zWuBd0ZA4kQr8yYahtUNs= X-Proofpoint-ORIG-GUID: _Mfnxcdx40w6nRM0X4IBJxLa0eA5fTSJ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-16_04,2026-07-15_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 phishscore=0 clxscore=1015 spamscore=0 priorityscore=1501 adultscore=0 malwarescore=0 bulkscore=0 lowpriorityscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607160105 On Wed, Jul 15, 2026 at 03:03:57PM -0500, Bjorn Andersson wrote: > On Tue, Jul 14, 2026 at 08:15:24PM +0800, Shawn Guo wrote: > > On Sun, Jul 12, 2026 at 10:39:44AM -0500, Bjorn Andersson wrote: > > > On Thu, Jul 09, 2026 at 09:20:11PM +0800, Shawn Guo wrote: > > > > Unlike the GearVM variant, Nord Embedded variant has platform resources > > > > (clocks, regulators, powerdomains, pins, etc.) directly controlled by > > > > Linux. [...] > > > > +&ufs_mem_hc { > > > > + reg = <0x0 0x01d44000 0x0 0x3000>, > > > > + <0x0 0x01d60000 0x0 0x15000>; > > > > + reg-names = "std", > > > > + "mcq"; > > > > > > All other changes in this patch directly relates to resource providers, > > > why does the UFS controller's mmio ranges change? > > > > We can have them in nord.dtsi just like all other device nodes, but we > > will need to delete reg-names from nord-gearvm.dtsi, since > > qcom,sa8255p-ufshc binding doesn't require reg-names. > > > > @@ -2907,5 +2907,6 @@ &ufs_mem_hc { > > compatible = "qcom,sa8797p-ufshc", > > "qcom,sa8255p-ufshc"; > > reg = <0x0 0x01d44000 0x0 0x3000>; > > + /delete-property/ reg-names; > > power-domains = <&scmi3_pd 0>; > > }; > > > > I will do this with v6, unless you hate delete-property. > > > > Now I see the answer is was actually looking for: the SCMI-based variant > doesn't list the mcq region. Why is that? Good question! It seems to be a binding problem to me. I just proposed a fix [1] and will move reg/reg-names into nord.dtsi to be shared by both variants. It will be neat. But that also means we will have one more dependency for v6 of the series, sadly. Shawn [1] https://lore.kernel.org/all/20260716083313.2367249-1-shengchao.guo@oss.qualcomm.com/