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Thu, 2 Dec 2021 19:30:11 +0900 (KST) Received: from KORCO082417 (unknown [10.229.8.121]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20211202103012epsmtip1968abd75f39b11d978c2dc2d0588f649~86WuLiK1S1878818788epsmtip1h; Thu, 2 Dec 2021 10:30:12 +0000 (GMT) From: "Chanho Park" To: "'Sam Protsenko'" , "'Krzysztof Kozlowski'" , "'Rob Herring'" Cc: "'Jaewon Kim'" , "'David Virag'" , "'Youngmin Nam'" , "'Wolfram Sang'" , "'Arnd Bergmann'" , , , , , In-Reply-To: <20211201190455.31646-6-semen.protsenko@linaro.org> Subject: RE: [PATCH 5/6] i2c: exynos5: Add bus clock support Date: Thu, 2 Dec 2021 19:30:11 +0900 Message-ID: <002f01d7e767$96417940$c2c46bc0$@samsung.com> MIME-Version: 1.0 X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQJ+Fna5aS4J9DFonoTtOdjbcAGMmgHjBJAzAvyntMCqq6ShkA== Content-Language: ko X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrKJsWRmVeSWpSXmKPExsWy7bCmqa7pghWJBu/Wslj8nXSM3WL+kXOs FjsajrBabHz7g8li0+NrrBYdf78wWlzeNYfNYsb5fUwWrXuPsFs87wOyjr9/zGhxd/9cRovF Bz6xO/B6/P41idFjVkMvm8fOWXfZPTat6mTzuHNtD5vH5iX1Hn1bVjF6fN4kF8ARlW2TkZqY klqkkJqXnJ+SmZduq+QdHO8cb2pmYKhraGlhrqSQl5ibaqvk4hOg65aZA3SykkJZYk4pUCgg sbhYSd/Opii/tCRVISO/uMRWKbUgJafAvECvODG3uDQvXS8vtcTK0MDAyBSoMCE748LmXWwF +1grZiz/zdjAuJGli5GTQ0LAROLv2uVMXYxcHEICOxgllu26wQySEBL4xCixbUEoROIbo0Tb xa3sMB1zDvewQiT2Mkq86HnPBuG8YJTY+WUPG0gVm4C+xMuObWBVIgLTGSWOd65jB3GYBf4x SbQ2/gCbxSngILG+9yTYQmEBG4nu03MZQWwWARWJY+tWg13IK2Apcb7lFyOELShxcuYTsDiz gLzE9rdzmCFuUpD4+XQZK4gtIuAksf3bc1aIGhGJ2Z1tzCCLJQRucEi8f3gT6m0XiY/LlrFB 2MISr45vgXpOSuJlfxs7REM3o0Tro/9QidWMEp2NPhC2vcSv6VuANnAAbdCUWL9LH8SUEFCW OHIL6jY+iY7Df9khwrwSHW1CEI3qEge2T4e6QFaie85n1gmMSrOQfDYLyWezkHwwC2HXAkaW VYxiqQXFuempxUYFJvDoTs7P3cQITs9aHjsYZ7/9oHeIkYmD8RCjBAezkgiv/MxliUK8KYmV ValF+fFFpTmpxYcYTYFhPZFZSjQ5H5gh8kriDU0sDUzMzAzNjUwNzJXEeT/4T08UEkhPLEnN Tk0tSC2C6WPi4JRqYJqyz27yrxPSHafypLTfGkw0/ugwO2Ztvmutd+DbO5rMn5e8nZ/19cSX tcssv+WGzhDblBErdvyliuQ8mY6Pd/i/XCxe4Be+d2PwRGvHJ/d3HS8IYjOzlNlQvUkg7HSz sa/0mfNdXGdFpnZUPrddHDtB5WVR2bMwqxs6q+/9npUcf0ywvaLU4rDF0iLryXK95xdv2OXk k+V6Y+nv+9LHAtzaF2s3Sh+ymTkx+P+9AC/Onc3NUjdrbp3w//N7vpGD36+TPYsWNu5/OjHi yiw9ll5V+RZhx8qdN6+95ZJ7ba2508ectX9Bn+s5nepPb3wCrqW0/9aJ5uzIOpyh6Phd8IWF 3seI4i0vSqPLHZeI2iuxFGckGmoxFxUnAgADhhjiWAQAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrAIsWRmVeSWpSXmKPExsWy7bCSnK7xghWJBjceWlr8nXSM3WL+kXOs FjsajrBabHz7g8li0+NrrBYdf78wWlzeNYfNYsb5fUwWrXuPsFs87wOyjr9/zGhxd/9cRovF Bz6xO/B6/P41idFjVkMvm8fOWXfZPTat6mTzuHNtD5vH5iX1Hn1bVjF6fN4kF8ARxWWTkpqT WZZapG+XwJVxYfMutoJ9rBUzlv9mbGDcyNLFyMkhIWAiMedwD2sXIxeHkMBuRolz23eyQyRk JZ692wFlC0vcbzkCVfSMUaL5XTcjSIJNQF/iZcc2sISIwExGieNf57KBOMwCbcwS3199Zodo Ocoo0bDpN9hCTgEHifW9J5lBbGEBG4nu03PBRrEIqEgcW7carIZXwFLifMsvRghbUOLkzCdA cQ6gqXoSbRvBwswC8hLb385hhjhPQeLn02WsILaIgJPE9m/PWSFqRCRmd7YxT2AUnoVk0iyE SbOQTJqFpGMBI8sqRsnUguLc9NxiwwLDvNRyveLE3OLSvHS95PzcTYzgSNXS3MG4fdUHvUOM TByMhxglOJiVRHjlZy5LFOJNSaysSi3Kjy8qzUktPsQozcGiJM57oetkvJBAemJJanZqakFq EUyWiYNTqoHJMUhlvcGtBeGt0XM8TYxTMqYbVOQ7llyVcuiaoqHDtql5Q/Nv26vvgpzvuiUK mv5V99ntuu6TcpOv+ZKUT9tntNxTeBKnJjD57ZaWAxMUwxIFWkWmZ73uK0h2nxbM8bW0M3LS 9AXzVrPrcr5YGLDYuO/xEr73yf3FZyeuFYyVZihwZayeqzp7y84sTfWHNhteK+ncKFBcFqcQ /ZhtS1z+e9/gylbxVU+SKzdmK+x2mh917p+U8to3wiumPip4+j/k+hMezZCTvR48/29z/A5d sJRlutqC561PNxsvc5z2MfNVwr2/udWud099tH6yIffJivvik2Iryp7cXhP2n0/290u1JULH g/1tWmNLY14qsRRnJBpqMRcVJwIA5f39DkMDAAA= X-CMS-MailID: 20211202103012epcas2p25c34dfb8cc9890403e8d131f40aee909 X-Msg-Generator: CA X-Sendblock-Type: AUTO_CONFIDENTIAL CMS-TYPE: 102P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20211201190525epcas2p3f2915664524b53bf72c69f46e1c13844 References: <20211201190455.31646-1-semen.protsenko@linaro.org> <20211201190455.31646-6-semen.protsenko@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211202_023020_191945_09C902CC X-CRM114-Status: GOOD ( 14.79 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org > In new Exynos SoCs (like Exynos850) where HSI2C is implemented as a part > of USIv2 block, there are two clocks provided to HSI2C controller: > - PCLK: bus clock (APB), provides access to register interface > - IPCLK: operating IP-core clock; SCL is derived from this one > > Both clocks have to be asserted for HSI2C to be functional in that case. > > Add code to obtain and enable/disable PCLK in addition to already handled > operating clock. Make it optional though, as older Exynos SoC variants > only have one HSI2C clock. > > Signed-off-by: Sam Protsenko Reviewed-by: Chanho Park Best Regards, Chanho Park _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel