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Mon, 9 Sep 2019 03:39:29 +0000 Received: from AM0PR04MB4481.eurprd04.prod.outlook.com ([fe80::6ca2:ec08:2b37:8ab8]) by AM0PR04MB4481.eurprd04.prod.outlook.com ([fe80::6ca2:ec08:2b37:8ab8%6]) with mapi id 15.20.2241.018; Mon, 9 Sep 2019 03:39:29 +0000 From: Peng Fan To: "mturquette@baylibre.com" , "sboyd@kernel.org" , "shawnguo@kernel.org" , "s.hauer@pengutronix.de" , "festevam@gmail.com" Subject: [PATCH V3 0/4] clk: imx8m: fix glitch/mux Thread-Topic: [PATCH V3 0/4] clk: imx8m: fix glitch/mux Thread-Index: AQHVZsAvxNHrETdja06leIJqZC3kHQ== Date: Mon, 9 Sep 2019 03:39:29 +0000 Message-ID: <1568043491-20680-1-git-send-email-peng.fan@nxp.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.7.4 x-clientproxiedby: HK0PR03CA0004.apcprd03.prod.outlook.com (2603:1096:203:2e::16) To AM0PR04MB4481.eurprd04.prod.outlook.com (2603:10a6:208:70::15) authentication-results: spf=none (sender IP is ) smtp.mailfrom=peng.fan@nxp.com; x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [119.31.174.66] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 21c7b4ef-a549-4e51-64f6-08d734d751b0 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0; 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X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [40.107.6.43 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peng Fan , Abel Vesa , Anson Huang , "linux-kernel@vger.kernel.org" , dl-linux-imx , "kernel@pengutronix.de" , Leonard Crestez , "linux-clk@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , Jacky Bai Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Peng Fan V3: Add cover-letter V2: Added patch [2,3,4]/4 and avoid glitch when prepare There is two bypass bit in the pll, BYPASS and EXT_BYPASS. There is also a restriction that to avoid glitch, need set BYPASS bit when RESETB changed from 0 to 1, otherwise there will be glitch. However the BYPASS bit is also used as mux bit in imx8mm/imx8mn clk driver. This means two paths touch the same bit which is wrong. So switch to use EXT_BYPASS bit as the mux. Peng Fan (4): clk: imx: pll14xx: avoid glitch when set rate clk: imx: clk-pll14xx: unbypass PLL by default clk: imx: imx8mm: fix pll mux bit clk: imx: imx8mn: fix pll mux bit drivers/clk/imx/clk-imx8mm.c | 32 ++++++++++---------------------- drivers/clk/imx/clk-imx8mn.c | 32 ++++++++++---------------------- drivers/clk/imx/clk-pll14xx.c | 27 ++++++++++++++++++++++++++- 3 files changed, 46 insertions(+), 45 deletions(-)