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([2405:201:c416:5052:81a2:4375:a071:12a2]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2bf23c0751asm143976745ad.55.2026.06.02.06.53.40 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 02 Jun 2026 06:53:44 -0700 (PDT) Message-ID: <4bf2e9eb-f015-48fa-bef2-ba1a58413e3f@oss.qualcomm.com> Date: Tue, 2 Jun 2026 19:23:39 +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: interconnect: qcom,shikra-epss-l3: Add EPSS L3 DT binding To: Krzysztof Kozlowski Cc: Georgi Djakov , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Odelu Kukatla References: <20260524-shikra_epss_l3-v1-0-b1528a436134@oss.qualcomm.com> <20260524-shikra_epss_l3-v1-1-b1528a436134@oss.qualcomm.com> <20260530-victorious-resourceful-muskox-cdeadb@quoll> <709428ff-e732-47b6-a6db-b26cd9149c98@kernel.org> Content-Language: en-US From: Raviteja Laggyshetty In-Reply-To: <709428ff-e732-47b6-a6db-b26cd9149c98@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: FU5g371xz-fOoYqEPKhS62rMIkHbQ-OO X-Authority-Analysis: v=2.4 cv=GYknWwXL c=1 sm=1 tr=0 ts=6a1ee06a cx=c_pps a=cmESyDAEBpBGqyK7t0alAg==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=FhBE5UMFHDhWvMFztzwA:9 a=QEXdDO2ut3YA:10 a=1OuFwYUASf3TG4hYMiVC:22 X-Proofpoint-GUID: FU5g371xz-fOoYqEPKhS62rMIkHbQ-OO X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjAyMDEzMyBTYWx0ZWRfXxunYFokxhYpC pBfNsILeLJhrQcYkPwxopSrzEjoiifHq7ObQ+78qCWQ6sS7HSvT5tvjqDRmOwo2m2IXKBZ6oTs6 lWTaQXIHntuaN/SABZQJRRFVLBMjYMWXSYb589mVHyRw+dtcjGoRNSR0effSFDK3ReNps3lf0rx s50ckwF35grzMdvVUp0QWRXTWkubgWYFAco8mG+TyMkYPbn1RtBpGJSf82TI0w5xu6myLoHxCwv cVlBXpL7cyMvDkB83yoTBGBmL4a/KR9aK10ynbCK6j7/ErYHyQaJ4KrkoY6k+eDFQclcXtGZV5v TgycBoVERR6QqPvTvH+cI/1CeG+HiSAXya/WRRXPoU7IAAagciyFN4N8L3wmztIn219kEFEXjI0 o6y1vYyZ+sAD7mDQparf/4Edlxypda5imPK1seT9pVcyh/pqHMjCEyezsGnyV82UY+jd5fQrLI5 TQ3hCNRjAL/vsCoyVCQ== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-02_02,2026-05-28_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 impostorscore=0 spamscore=0 bulkscore=0 phishscore=0 lowpriorityscore=0 clxscore=1015 suspectscore=0 priorityscore=1501 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605210000 definitions=main-2606020133 On 6/2/2026 5:29 PM, Krzysztof Kozlowski wrote: > On 02/06/2026 11:27, Raviteja Laggyshetty wrote: >> >> >> On 5/30/2026 4:38 PM, Krzysztof Kozlowski wrote: >>> On Sun, May 24, 2026 at 06:03:35PM +0000, Raviteja Laggyshetty wrote: >>>> + '#interconnect-cells': >>>> + const: 1 >>>> + >>> >>> I do not see any differences against OSM L3 binding. Why isn't this >>> device there? >>> >> >> The EPSS L3 on Shikra is similar to EPSS/OSM L3 on other Qualcomm SoCs, >> but supports only twelve LUT entries. Due to this hardware difference, >> the generic compatibles are not applicable, so a new SoC specific >> binding is introduced. >> > > This I understood, but the binding would be exactly the same, no? Kind > of repeating the question.... > Yes, Though the hardware is slightly different, it can be still described using the existing qcom,osm-l3.yaml binding and can be added as OneOf the compatible enum in the properties. Just to differentiate the hardware difference with existing L3, separate SoC specific binding is added. > Best regards, > Krzysztof