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Wed, 27 Jul 2022 20:51:49 +0900 (KST) Received: from jiho-chu04.tn.corp.samsungelectronics.net (unknown [10.113.112.236]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20220727115148epsmtip1db663b829dc0dfd3e0124212cef613f9~FrWobGLO10501205012epsmtip1A; Wed, 27 Jul 2022 11:51:48 +0000 (GMT) Date: Wed, 27 Jul 2022 20:51:48 +0900 From: Jiho Chu To: Krzysztof Kozlowski Cc: gregkh@linuxfoundation.org, arnd@arndb.de, linux-kernel@vger.kernel.org, yelini.jeong@samsung.com, myungjoo.ham@samsung.com Subject: Re: [PATCH 0/9] Samsung Trinity NPU device driver Message-Id: <20220727205148.8867516678d51bd2439d27da@samsung.com> In-Reply-To: <70255b63-294c-bda6-e7ad-7009f735b336@linaro.org> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.30; i686-pc-mingw32) Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupkk+LIzCtJLcpLzFFi42LZdlhTX/eq2sMkg9tn9S3+TjrGbtG8eD2b xfvu3cwWe19vZbe4vGsOm8XtxhVsFs+nXWdxYPf4/WsSo8eda3vYPPbPXcPu0bdlFaPH501y AaxR2TYZqYkpqUUKqXnJ+SmZeem2St7B8c7xpmYGhrqGlhbmSgp5ibmptkouPgG6bpk5QGco KZQl5pQChQISi4uV9O1sivJLS1IVMvKLS2yVUgtScgpMC/SKE3OLS/PS9fJSS6wMDQyMTIEK E7Iz9p3bx1awmKPib9Ne1gbGo2xdjJwcEgImEt2LGli7GLk4hAR2MEpsfDmFDcL5xCjReuMC lPONUWLrxx9wLTc2TQGzhQT2Mkr8/64FUdTBJDGlax07SIJFQFWi9846JhCbDcieOWMNWFxE wEJi8YaFYPuYBRoZJf41fAArEhawkvh8fx1zFyMHB6+Ao8SCb0kgYU4BO4mlD7ZCLbaQuNuz ghWiRFDi7w5hkDCzgLzE9rdzmEFGSgj8ZJf4fusgI0S9i8Tx6b3sELawxKvjW6BsKYnP7/ZC zcyWmNKxiAXCLpA493wr2AkSAsYSF1ekgJjMApoS63fpQ1QoSuz8PZcRYi2fxLuvPawQ1bwS HW1CECVKEkv+HIZaJCExdcY3JgjbQ2LG2quMkJA6zChxcvI25gmMCrMQnpmF5JlZCIsXMDKv YhRLLSjOTU8tNiwwgUdvcn7uJkZwmtSy2ME49+0HvUOMTByMhxglOJiVRHgTou8nCfGmJFZW pRblxxeV5qQWH2I0BcbMRGYp0eR8YKLOK4k3NLE0MDEzMjaxMDQzVBLn7Z16OlFIID2xJDU7 NbUgtQimj4mDU6qBybzncuB/n/TLPNMmv7oyJcFr1d3zvLfvS11dFJWtaSEUHi/3c5EVy+UH Dy4/72s86j5nnuePdSrSv8QqVdd4//wh36RtuTpOJOAv1w/7ZZqzfy+xvT236gXv5bdrld+s YuOzXPBI4rz2uil7I+7zeF+9zLvpz8SZ/+4YcrAdcf/4e8K65VsFtPY5Hf2cwKv/66zrK5+m 36v55jxT32q1fQ3PKxat5Vt99P/HtrOUFhrI+J9V77T7MG1a94W6v8zL/vYwK7i+/aahK7Sl dfGv9L817kdZvxWrCSppzn6191pNy7S6Yy/v7/k+ad/3lvl5SbcufA0pjNZy/n2O78qHGM7e TZJCagv9RF4VuN9UXLNCiaU4I9FQi7moOBEAJz8vVxwEAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrLLMWRmVeSWpSXmKPExsWy7bCSnO5VtYdJBt/2sFn8nXSM3aJ58Xo2 i/fdu5kt9r7eym5xedccNovbjSvYLJ5Pu87iwO7x+9ckRo871/aweeyfu4bdo2/LKkaPz5vk AlijuGxSUnMyy1KL9O0SuDL2ndvHVrCYo+Jv017WBsajbF2MnBwSAiYSNzZNAbK5OIQEdjNK TJ+6ih0iISGx6d5y5i5GDiBbWOLw4WKImjYmiaXNN8FqWARUJXrvrGMCsdmA7Jkz1oDFRQQs JBZvWMgK0sAs0MgoceTDMmaQhLCAlcTn++vAhvIKOEos+JYEEuYUsJNY+mAr1BGHGSVOTt7G DHGEhcTdnhWsEPWCEn93CIOEmQW0JB7+usUCYctLbH87h3kCo+AshKpZSKpmIalawMi8ilEy taA4Nz232LDAMC+1XK84Mbe4NC9dLzk/dxMjOAa0NHcwbl/1Qe8QIxMH4yFGCQ5mJRHehOj7 SUK8KYmVValF+fFFpTmpxYcYpTlYlMR5L3SdjBcSSE8sSc1OTS1ILYLJMnFwSjUwua8u1XvU 86T32rutj5puRRVx6px5ZMGZnco385O6iMjZTCfnj/FGZqx7sm/snDzn2T1ddUfH0Fc51luZ feVsJipM8FwWtzvkWMWBpiMfj8/NW6P+e5Ubh5V1Lmf6g5U2KiI/nvsd4m727eNoaV7hl/0p 89T0ssbY5dznGGdt2s3NLqLinz3bQ94uKlH9XvKRpzFLYrZGpi7v29K07GVDRZHQunbRQ81r js3d3ZmyWcQi4Zr+SxW7U88OLt2wtnNb3/6ZWlFnNezuP5dm446qznizsukLx52Nj+c2Gzjz Nys1330+LX5rbkN5qblYfsbDnDUx22+92fxH3mJZ1OygOD35nYJH3DbGHOVOvZCoxFKckWio xVxUnAgA9dJnjfACAAA= X-CMS-MailID: 20220727115149epcas1p124467d885485ed97ef7fa4d89b77f637 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-Sendblock-Type: SVC_REQ_APPROVE CMS-TYPE: 101P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20220725065308epcas1p2f6de3d74792854bb312cca4b310badac References: <20220725065308.2457024-1-jiho.chu@samsung.com> <70255b63-294c-bda6-e7ad-7009f735b336@linaro.org> X-Spam-Status: No, score=-5.0 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,NICE_REPLY_A, RCVD_IN_DNSWL_MED,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_PASS, SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 26 Jul 2022 08:57:08 +0200 Krzysztof Kozlowski wrote: > On 25/07/2022 08:52, Jiho Chu wrote: > > Hello, > > > > My name is Jiho Chu, and working for device driver and system daemon for > > several years at Samsung Electronics. > > > > Trinity Neural Processing Unit (NPU) series are hardware accelerators > > for neural network processing in embedded systems, which are integrated > > into application processors or SoCs. Trinity NPU is compatible with AMBA > > bus architecture and first launched in 2018 with its first version for > > vision processing, Trinity Version1 (TRIV1). Its second version, TRIV2, > > is released in Dec, 2021. Another Trinity NPU for audio processing is > > referred as TRIA. > > > > Why there are no bindings? How is it supposed to be used on ARM64 platforms? > > > Best regards, > Krzysztof > Hi, Krzysztof Thanks for your review. A dt-bindings document under 'bindings/arm/' is being ready, and it could be included in v2. Sincerely, Jiho Chu