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Thu, 01 Jan 2026 19:58:15 -0800 (PST) X-Google-Smtp-Source: AGHT+IH4NxLVRgW+I2SZq0MJGPGEFM7KAxNVqWKlVzvbiPDVs8g/IbtWn5aUQkRfdKgEJmj6JC6lqw== X-Received: by 2002:a17:903:bd0:b0:2a1:3e15:380e with SMTP id d9443c01a7336-2a2f273261fmr249165155ad.34.1767326294573; Thu, 01 Jan 2026 19:58:14 -0800 (PST) Received: from [10.217.198.242] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-34e70dcc7c8sm39340592a91.15.2026.01.01.19.58.11 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 01 Jan 2026 19:58:14 -0800 (PST) Message-ID: <892970d0-2373-4b6f-a415-05017ffdf219@oss.qualcomm.com> Date: Fri, 2 Jan 2026 09:28:10 +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 2/2] arm64: dts: qcom: purwa: Drop the Hamoa workaround for PDC To: Konrad Dybcio , Thomas Gleixner , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , 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-v1-2-2b4979dd88ad@oss.qualcomm.com> <7eacdba8-1dec-45ac-b48d-55cc67a98ae7@oss.qualcomm.com> Content-Language: en-US From: "Maulik Shah (mkshah)" In-Reply-To: <7eacdba8-1dec-45ac-b48d-55cc67a98ae7@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=Av7jHe9P c=1 sm=1 tr=0 ts=69574258 cx=c_pps a=cmESyDAEBpBGqyK7t0alAg==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=3v1PhqgXsD_hH84qwFsA:9 a=QEXdDO2ut3YA:10 a=1OuFwYUASf3TG4hYMiVC:22 X-Proofpoint-ORIG-GUID: UPv5UgkFNw7ZRA72haCje-9gTcX2TKdE X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTAyMDAzNCBTYWx0ZWRfXxnAGmUxfmwaH yUHVLfPAh3wB3+3lR2gtOUyJSMszI7k60npE5y/6JdluhVKrw5A15kBAH4TnJ+9h8oYfW3zCN4f CDs9FzztbANwFOkbt4xoVeKis3m9LRsyHdoLXgt6KMlXTpw1OdiXZl8kkqkY/Jqcu18ang1/Sl+ m3Q2UZ5PVvcmxsVMh+j9LBcQblGZO5KwsRJk5f93vRUigak8H71SvCPaoLVdPIk5GAyhLho/bdP z/fWIwm16aR22xOYGCWhGOCIR1/T4vRRjF9KfTxx52N+yZVdH76sGXsODWg6ufUt8orWQLobiTP XMTNNR/NGbyyniD/l+zT3mn8P66qWu34SxSM1EnF6coFFSqtaGjXftbPlO6FZCc5vtbqLj22V4d LH7oQxr3IAfWhbu880B1CG1yQ3SEtC0fOmgsIJVOn9cFGjiqqplrk0AgY3H29Iub1eKCEDD6B6L ok3mINbDiJ8XcJvDFCw== X-Proofpoint-GUID: UPv5UgkFNw7ZRA72haCje-9gTcX2TKdE 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 malwarescore=0 clxscore=1015 phishscore=0 priorityscore=1501 suspectscore=0 lowpriorityscore=0 impostorscore=0 bulkscore=0 spamscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2601020034 On 12/31/2025 5:24 PM, Konrad Dybcio wrote: > On 12/31/25 11:18 AM, Maulik Shah wrote: >> Purwa shares the Hamoa (X1E80100) PDC device, but the hardware register >> 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. Use the Purwa specific >> compatible string for the PDC node to remove the workaround from Purwa. >> >> Fixes: f08edb529916 ("arm64: dts: qcom: Add X1P42100 SoC and CRD") >> Signed-off-by: Maulik Shah >> --- >> arch/arm64/boot/dts/qcom/purwa.dtsi | 4 ++++ >> 1 file changed, 4 insertions(+) >> >> diff --git a/arch/arm64/boot/dts/qcom/purwa.dtsi b/arch/arm64/boot/dts/qcom/purwa.dtsi >> index 2cecd2dd0de8c39f0702d6983bead2bc2adccf9b..e3e2dfedf0b3cad90b767d6b28fb0c60078d192b 100644 >> --- a/arch/arm64/boot/dts/qcom/purwa.dtsi >> +++ b/arch/arm64/boot/dts/qcom/purwa.dtsi >> @@ -152,6 +152,10 @@ &pcie6a_phy { >> compatible = "qcom,x1p42100-qmp-gen4x4-pcie-phy"; >> }; >> >> +&pdc { >> + compatible = "qcom,x1p42100-pdc", "qcom,pdc"; > > I think it would make sense to add a comment above the compatible line, > saying that the PDC is largely the same as the bigger brother's, sans > the bug > Sure, Will comment in v2 above the compatible line. Thanks, Maulik