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Thu, 01 Jan 2026 20:23:54 -0800 (PST) X-Google-Smtp-Source: AGHT+IHHIb3L85/jpqM+hkvUNcIJvoLwTUhkvKs4XeKWJSbNq5U4FnRoG1VNec60c5doF8zuXEcTDQ== X-Received: by 2002:a17:902:e552:b0:2a0:d4e3:7188 with SMTP id d9443c01a7336-2a2f2223bc0mr451953715ad.13.1767327834143; Thu, 01 Jan 2026 20:23:54 -0800 (PST) Received: from [10.217.198.242] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2a2f3d5d86esm361129605ad.74.2026.01.01.20.23.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 01 Jan 2026 20:23:53 -0800 (PST) Message-ID: Date: Fri, 2 Jan 2026 09:53:49 +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 1/2] dt-bindings: interrupt-controller: qcom,pdc: Document x1p42100 PDC To: Krzysztof Kozlowski , Thomas Gleixner , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Konrad Dybcio Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org References: <20251231-purwa_pdc-v1-0-2b4979dd88ad@oss.qualcomm.com> <20251231-purwa_pdc-v1-1-2b4979dd88ad@oss.qualcomm.com> <209c49fb-04a6-43dc-a3f1-8451e3946d06@kernel.org> Content-Language: en-US From: "Maulik Shah (mkshah)" In-Reply-To: <209c49fb-04a6-43dc-a3f1-8451e3946d06@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: 4F1bQ7D-iU_rOQXxykqH2GVwAiI2GwZh X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTAyMDAzOCBTYWx0ZWRfX7myR9EnpwTYH 8s86zFIokg9oyuzhUJHd3ZBVdKV4gYb3L7ec6F7v/DBHXwQDDST21qeIv1EUE+In7G1EfdXU3lk REUkoQpLIjSsZJkGAJbNQbMopq6rkmU+jLhbh+fLcd6AtdlS/Vu6Zy3uMRsZEW8iq6yjBr3zVMK Q/GbYM7P+i8j+s7xz/C7DOvuKURSTZwsOHjFHIReup0FR50iyDCJSrgkliYfy6dLr0k8XztjhpQ q1Ydt0hila1XGkEGyP1SHu6OTrLkpDxUaQxU3JhufUOuaEx5+vbFmn/4kiCXAmBY322TFk/N/nY PUrNk3qj2Ovu5wK0bSzt7qJSeQYs0K1IzSfuWUPWDvPOdas5CujhIUyVbb3yp3VnB8DL0Vr88SS TOPzYZnQPlBXA1Vt4zfuFSNC09a/cmMVQdexp9Vxs30tB7SOkSZ464gX/kmRhIDOyty5f084yM4 ixCq70wEXcjMCU9kz8g== X-Proofpoint-GUID: 4F1bQ7D-iU_rOQXxykqH2GVwAiI2GwZh X-Authority-Analysis: v=2.4 cv=Hq972kTS c=1 sm=1 tr=0 ts=6957485b cx=c_pps a=cmESyDAEBpBGqyK7t0alAg==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=-qTOTZwHVwQcG5cz7zoA:9 a=QEXdDO2ut3YA:10 a=1OuFwYUASf3TG4hYMiVC:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2026-01-01_07,2025-12-31_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 bulkscore=0 lowpriorityscore=0 suspectscore=0 adultscore=0 phishscore=0 priorityscore=1501 clxscore=1015 spamscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2601020038 On 12/31/2025 4:19 PM, Krzysztof Kozlowski wrote: > On 31/12/2025 11:18, Maulik Shah wrote: >> Purwa shares the Hamoa (X1E80100) PDC device, but the hardware register > > We don't use Hamoa name in upstream. Okay, I will not use hamoa/purwa, will use X1E80100/X1P42100 everywhere in v2. > >> bug addressed in commit e9a48ea4d90b ("irqchip/qcom-pdc: Workaround >> hardware register bug on X1E80100") is already fixed in Purwa silicon. >> >> Hamoa compatible forces the software workaround. Add PDC compatible >> for purwa as "qcom,x1p42100-pdc" to remove the workaround from Purwa. >> >> Fixes: f08edb529916 ("arm64: dts: qcom: Add X1P42100 SoC and CRD") > > Your are describing wrong bug being fixed... or actually not a bug. > Every SoC should have dedicated compatible (see writing bindings) and > missing compatible is not a bug. The X1P42100 SoC today shares most of the devices with X1E80100 SoC as is, with X1E80100 as bigger brother. Adding new compatible for X1P42100 PDC to avoid applying the S/W workaround for the H/W bug of X1E80100 should be as per writing bindings which says, - DO add new compatibles in case there are new features or bugs. Adding The Fixes: tag for binding will also help when patch-2 of the series gets backported, the binding change also gets automatically picked up. Thanks, Maulik