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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-29650c5fdb5sm23392665ad.44.2025.11.06.02.16.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 06 Nov 2025 02:16:47 -0800 (PST) Message-ID: Date: Thu, 6 Nov 2025 18:16:41 +0800 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] dt-bindings: mfd: qcom,tcsr: Add compatible for Kaanapali To: Bjorn Andersson , Jingyi Wang Cc: Lee Jones , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, tingwei.zhang@oss.qualcomm.com, trilok.soni@oss.qualcomm.com, yijie.yang@oss.qualcomm.com References: <20250924-knp-mfd-v1-1-6c8a98760e95@oss.qualcomm.com> Content-Language: en-US From: "Aiqun(Maria) Yu" In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: j6nMAci1wpcGqP9jxcnrVR_ua1Kb6qTC X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTA2MDA3OSBTYWx0ZWRfX5fW/ar0g/63c vdPS9UUfXNuaG98C/OJYKPBtUwT9uHklCzJXQjidpoKDEYPSy/VtGP3g7xjB+8+T74r4fS3Ut4/ RK/GP69yFvzB5eirVmKGltWeLq7sC9YAzGZjBkhHGXhTgGLXUURGVv11TTYIdOFQGXKbIH+9kGi rJOR5flUA/8zJ+1Q6jak25cLc0rkm+la2BskIs+E+vfB5HDoxgJrBwnjILxqNbGn5Rj8aBfuQu7 OwahLl9tQL7c06bdU8vdVydK9+0akOQla8KUbPZ/1LInURiBBGcZSypNuMojvEBl3E6+6TWzI/p s7pkNVTse+ynEiQZWtZoZavEV89/ejwpskomO8Pl0iF54qmSHxiwTntbeFYL6+tu07cjdmOJn2Z xqInXejdcw9p27SwnJNtR5HQDE/ing== X-Proofpoint-ORIG-GUID: j6nMAci1wpcGqP9jxcnrVR_ua1Kb6qTC X-Authority-Analysis: v=2.4 cv=ZODaWH7b c=1 sm=1 tr=0 ts=690c7592 cx=c_pps a=IZJwPbhc+fLeJZngyXXI0A==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=6UeiqGixMTsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=ON1wIvcCeMpCzfIEu8AA:9 a=QEXdDO2ut3YA:10 a=uG9DUKGECoFWVXl0Dc02:22 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=2025-11-06_02,2025-11-06_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 suspectscore=0 phishscore=0 spamscore=0 clxscore=1015 impostorscore=0 malwarescore=0 lowpriorityscore=0 priorityscore=1501 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2511060079 On 11/6/2025 5:06 AM, Bjorn Andersson wrote: > On Tue, Nov 04, 2025 at 01:35:01PM +0800, Jingyi Wang wrote: >> >> >> On 11/4/2025 12:02 PM, Bjorn Andersson wrote: >>> On Tue, Nov 04, 2025 at 11:34:25AM +0800, Aiqun(Maria) Yu wrote: >>>> On 9/25/2025 7:23 AM, Jingyi Wang wrote: >>>>> Document the qcom,tcsr-kaanapali compatible, tcsr will provide various >>>>> control and status functions for their peripherals. >>>>> >>>>> Signed-off-by: Jingyi Wang >>>>> --- >>>>> Documentation/devicetree/bindings/mfd/qcom,tcsr.yaml | 1 + >>>>> 1 file changed, 1 insertion(+) >>>>> >>>>> diff --git a/Documentation/devicetree/bindings/mfd/qcom,tcsr.yaml b/Documentation/devicetree/bindings/mfd/qcom,tcsr.yaml >>>>> index 14ae3f00ef7e..ae55b0a70766 100644 >>>>> --- a/Documentation/devicetree/bindings/mfd/qcom,tcsr.yaml >>>>> +++ b/Documentation/devicetree/bindings/mfd/qcom,tcsr.yaml >>>>> @@ -48,6 +48,7 @@ properties: >>>>> - qcom,tcsr-ipq8064 >>>>> - qcom,tcsr-ipq8074 >>>>> - qcom,tcsr-ipq9574 >>>>> + - qcom,tcsr-kaanapali >>>> >>>> It looks good to me. Glymur didn't have this functionality verified yet. >>> >>> You spelled Reviewed-by: Aiqun Yu <..> wrong. >>> >>>> Remind for review. >>> >>> No need for that, reviewers will review when they have time. >>> >>>> >> >> Hi Bjorn, >> >>> >>> But that said, most modern additions to this binding follow the common >>> format of qcom,-. >>> >>> So I would prefer this to be qcom,kaanapali-tcsr. >>> >>> Regards, >>> Bjorn >>> >> >> qcom,tcsr-kaanapali is used to distinguish with binding for GCC: >> https://lore.kernel.org/all/20251030-gcc_kaanapali-v2-v2-2-a774a587af6f@oss.qualcomm.com/ >> > > So, qcom,kaanapali-tcsr is the clock controller region of TCSR and > qcom,tcsr-kaanapali is the non-clock controller region of TCSR? > > Sorry for not understanding that earlier, but this doesn't work for me. > > It's a bit of a lie that TCSR_MUTEX is a separate node in devicetree, > but it's always an nice chunk of 256K in the beginning (or end in some > cases?) of TCSR. But for the rest, there should be a single tcsr node in > DeviceTree and that one node should be a syscon and a clock controller. I've been dive deeply on this tcsr block. And actually the tcsr clock controller part is a very small trunk size(0x1c) of the tcsr block. And this block have contain other multiple purposed sys registers. So maybe we can have a more discussion on how to have device tree node describe this situation? It is not straight forward that to have a non-tcsrcc related area being described in tcsrcc. What about option 1 (tcsr_mutex + tcsr_dload_syscon + tcsrcc): tcsr_mutex: hwlock@1f40000 { compatible = "qcom,tcsr-mutex"; reg = <0x0 0x01f40000 0x0 0x20000>; #hwlock-cells = <1>; }; tcsr_dload: syscon@1fc0000 { compatible = "qcom,tcsr-kaanapali", "syscon"; reg = <0x0 0x1fc0000 0x0 0x30000>; }; tcsrcc: clock-controller@1fd5044 { compatible = "qcom,kaanapali-tcsr", "syscon"; reg = <0x0 0x01fd5044 0x0 0x1c>; ... }; What about option 2 (tcsr whole block + tcsr_mutex + tcsrcc): tcsr: syscon@1f40000 { compatible = "qcom,tcsr-kaanapali", "syscon"; reg = <0x0 0x1f40000 0x0 0xC0000>; //align with the whole hardware block design. }; tcsr_mutex: hwlock@1f40000 { compatible = "qcom,tcsr-mutex"; reg = <0x0 0x01f40000 0x0 0x20000>; #hwlock-cells = <1>; }; tcsrcc: clock-controller@1fd5044 { compatible = "qcom,kaanapali-tcsr", "syscon"; reg = <0x0 0x01fd5044 0x0 0x1c>; ... }; > > Regards, > Bjorn > >> Thanks, >> Jingyi >> >>>>> - qcom,tcsr-mdm9615 >>>>> - qcom,tcsr-msm8226 >>>>> - qcom,tcsr-msm8660 >>>>> >>>>> --- >>>>> base-commit: ae2d20002576d2893ecaff25db3d7ef9190ac0b6 >>>>> change-id: 20250917-knp-mfd-4dd3c81e6b9b >>>>> >>>>> Best regards, >>>> >>>> >>>> -- >>>> Thx and BRs, >>>> Aiqun(Maria) Yu >> -- Thx and BRs, Aiqun(Maria) Yu