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Fri, 06 Mar 2026 01:54:22 -0800 (PST) X-Received: by 2002:a17:903:2a8c:b0:2ae:8055:62c8 with SMTP id d9443c01a7336-2ae8243b575mr19019895ad.32.1772790862020; Fri, 06 Mar 2026 01:54:22 -0800 (PST) Received: from [192.168.1.11] ([106.222.228.80]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2ae83e57b1fsm19197485ad.12.2026.03.06.01.54.17 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 06 Mar 2026 01:54:21 -0800 (PST) Message-ID: <09e910cd-d0e9-4a05-a249-b0600705ac6c@oss.qualcomm.com> Date: Fri, 6 Mar 2026 15:24:15 +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] dt-bindings: nvmem: qfprom: Add Kaanapali compatible To: Konrad Dybcio Cc: aiqun.yu@oss.qualcomm.com, tingwei.zhang@oss.qualcomm.com, trilok.soni@oss.qualcomm.com, yijie.yang@oss.qualcomm.com, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Jingyi Wang , Srinivas Kandagatla , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Dmitry Baryshkov References: <20260305-knp-qfprom-binding-v1-1-1b3effb09cad@oss.qualcomm.com> From: Akhil P Oommen Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzA2MDA5MyBTYWx0ZWRfX755q6HY7Z5LC WpCXLfzZlFpslpqWVPqe6npcpK27hf5yoxNLmIHFSn9oDIudbsTTH0VN/Y3lm9rBJWMmaUYLtsV jxdQuvQe5k9Cn+aV5B+JZpD6xx6WTSQj7RdbgA3n7QVtcntr5HexaypfXJH+T/gifQU6I3/gbLv Cn0kn3KOXUeQHh47dLppgHExGBWDWL0n8oEDWr8d8BUrzBYLruw5CwZmc+w4yCJaumoUvY6HPBM 70d5r+1Ko2GTnDNXk65wza3h3a+bugiLqFgTMQTJvEBdyM0ilN5tvCnfdsEoXHjZ1lOCVVy1oLD u0CxmEkUo5k6QzPHqGJZTdxa/eVl8v9QH5LDW4bk9O51vWCkvvWESnALWMVEFD0toRtYnigaELz rp/WRmTDp66fY5OGrcjac1HhWvlHtQi8cAtYBTRq/njXtzE9wBbYGmmIrgt/1F/ihqVnetKvgcR +EBUP/TKwx8KdkljTZQ== X-Proofpoint-ORIG-GUID: jPcfyBN8c_UmFy7C_-tYFCMOQBhK-Jw8 X-Proofpoint-GUID: jPcfyBN8c_UmFy7C_-tYFCMOQBhK-Jw8 X-Authority-Analysis: v=2.4 cv=T8uBjvKQ c=1 sm=1 tr=0 ts=69aaa44f cx=c_pps a=MTSHoo12Qbhz2p7MsH1ifg==:117 a=uL+hpB4jSAN/g3a/thif0w==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=EUspDBNiAAAA:8 a=VUY64QdsKBsrmivN9HUA:9 a=QEXdDO2ut3YA:10 a=GvdueXVYPmCkWapjIL-Q:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-06_03,2026-03-04_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 phishscore=0 lowpriorityscore=0 adultscore=0 spamscore=0 impostorscore=0 priorityscore=1501 malwarescore=0 suspectscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603060093 On 3/6/2026 2:40 PM, Konrad Dybcio wrote: > On 3/6/26 7:55 AM, Akhil P Oommen wrote: >> On 3/6/2026 12:10 PM, Jingyi Wang wrote: >>> Document compatible string for the QFPROM on Kaanapali platform. >>> >>> Signed-off-by: Jingyi Wang >>> --- >>> Documentation/devicetree/bindings/nvmem/qcom,qfprom.yaml | 1 + >>> 1 file changed, 1 insertion(+) >>> >>> diff --git a/Documentation/devicetree/bindings/nvmem/qcom,qfprom.yaml b/Documentation/devicetree/bindings/nvmem/qcom,qfprom.yaml >>> index 839513d4b499..2ab047f2bb69 100644 >>> --- a/Documentation/devicetree/bindings/nvmem/qcom,qfprom.yaml >>> +++ b/Documentation/devicetree/bindings/nvmem/qcom,qfprom.yaml >>> @@ -26,6 +26,7 @@ properties: >>> - qcom,ipq8064-qfprom >>> - qcom,ipq8074-qfprom >>> - qcom,ipq9574-qfprom >>> + - qcom,kaanapali-qfprom >> >> A question to the maintainers. >> >> Do we need a new compatible for every chipset? If there are no KMD >> facing differences in the HW, can we use an existing compatible string, >> like sm8750's in this case? >> >> The fuse definitions (which map to nvmem cells) will obviously differ >> between chipsets, but I am not sure if this alone warrants introducing a >> new compatible string. > > This is to prevent the case where it later turns out that QFPROM on 8750 > is deeply flawed under certain conditions and needs to have workarounds > applied retroactively (because we're pinky-promise working towards stable > DT ABI) But this is a super simple HW IP, so make an exception for this? In the worst case, use a SoC related compatible in the driver for quirks? I am just trying to see if there is a way to avoid this dependency for the DT series. :) -Akhil. > > Konrad