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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2a88b415b01sm168462075ad.40.2026.02.03.01.54.28 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 03 Feb 2026 01:54:32 -0800 (PST) Message-ID: <178f868a-a152-4f2e-87a1-b83b7870777a@oss.qualcomm.com> Date: Tue, 3 Feb 2026 17:54:27 +0800 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 v2 2/3] arm64: dts: qcom: hamoa: enable ETR and CTCU devices From: Jie Gan To: Konrad Dybcio , Suzuki K Poulose , Mike Leach , James Clark , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Tingwei Zhang , Bjorn Andersson , Konrad Dybcio Cc: coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260203-enable-ctcu-and-etr-v2-0-aacc7bd7eccb@oss.qualcomm.com> <20260203-enable-ctcu-and-etr-v2-2-aacc7bd7eccb@oss.qualcomm.com> Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjAzMDA3OCBTYWx0ZWRfX1tYtMEWDTUym aRwEJOHKP+oUfX8QLbx9ShOEO2rOQkuZDsKoO3bPjzyEiqVlTf9Z2x70RJl1WEruM5/3Hzj6HoD GW8ey77PHto3HMvYX2n2XnXqjIQohLL5vgp2G5tCoOSiNojCB0YRnrhKAmn6AxNglM/vOkjKN9I DdFVYoc4Cw3ekeHUOhdSCZovzR/zU7N2auN6PuSBHmsMJ+25k6Jf4PGpEF+tMfY430Y5V0hqdDI +UHXXgrP5oGl87r6LGlJD6oRveC7ONeCRPvBouABOOvIRvqIQJVjBRzmeQnsxftQBoOE1RqYfpG SC8llMIoXXSGPUiywWsRDI1/qviMQK3htB9BlCQe0XUCHNM0J2+X3xVVVMFbhlHy8VwJg6W1Skk M75x7bY9NFq7IKDyU/vab8CP+NSwDrOnfOF/+G/mOKg19N3B/cC05Atb4U4eMkb4eWFaDqpQJXg 7SKv/+0nEtacqZS4FnA== X-Proofpoint-ORIG-GUID: 4q6kccMmWVyaUtDUDj7l0JzvdUhvgsMa X-Authority-Analysis: v=2.4 cv=L4sQguT8 c=1 sm=1 tr=0 ts=6981c5d9 cx=c_pps a=Oh5Dbbf/trHjhBongsHeRQ==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=WGD1OUi62yeOWj14Vj4A:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=_Vgx9l1VpLgwpw_dHYaR:22 X-Proofpoint-GUID: 4q6kccMmWVyaUtDUDj7l0JzvdUhvgsMa X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-03_03,2026-02-02_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 phishscore=0 malwarescore=0 spamscore=0 bulkscore=0 clxscore=1015 priorityscore=1501 suspectscore=0 lowpriorityscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602030078 On 2/3/2026 5:50 PM, Jie Gan wrote: > > > On 2/3/2026 5:44 PM, Konrad Dybcio wrote: >> On 2/3/26 10:32 AM, Jie Gan wrote: >>> Embedded Trace Router(ETR) is working as a DDR memory sink to collect >>> tracing data from source device. >>> >>> The CTCU serves as the control unit for the ETR device, managing its >>> behavior to determine how trace data is collected. >>> >>> Reviewed-by: Konrad Dybcio >>> Signed-off-by: Jie Gan >>> --- >>>   arch/arm64/boot/dts/qcom/hamoa.dtsi | 160 +++++++++++++++++++++++++ >>> ++++++++++- >>>   1 file changed, 159 insertions(+), 1 deletion(-) >>> >>> diff --git a/arch/arm64/boot/dts/qcom/hamoa.dtsi b/arch/arm64/boot/ >>> dts/qcom/hamoa.dtsi >>> index db65c392e618..88ec29446ba1 100644 >>> --- a/arch/arm64/boot/dts/qcom/hamoa.dtsi >>> +++ b/arch/arm64/boot/dts/qcom/hamoa.dtsi >>> @@ -6771,6 +6771,35 @@ data-pins { >>>               }; >>>           }; >>> +        ctcu@10001000 { >>> +            compatible = "qcom,hamoa-ctcu", "qcom,sa8775p-ctcu"; >> >> Sorry for not pointing that out explicitly the previous time around, >> but 'hamoa' also falls under the "had numerical compatibles" category > > I saw the dtsi is renamed to hamoa.dtsi but we still need to use > qcom,x1e80100 for hamoa? > I think I was misunderstanding here. Just checked the compatible for hamoa: compatible = "qcom,hamoa-iot-evk", "qcom,hamoa-iot-som", "qcom,x1e80100"; I will change it to qcom,x1e80100-ctcu. Thanks, Jie > Thanks, > Jie > >> (you'll see the only hits for "qcom,hamoa" are "qcom,hamoa-iot-evk" >> which is a board name) >> >> Glymur and Kaanapali are, understandably, Glymur and Kaanapali >> respectively >> >> Konrad >