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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241027-imx-clk-v1-v3-2-89152574d1d7@nxp.com> References: <20241027-imx-clk-v1-v3-0-89152574d1d7@nxp.com> In-Reply-To: <20241027-imx-clk-v1-v3-0-89152574d1d7@nxp.com> To: Abel Vesa , Michael Turquette , Stephen Boyd , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Aisheng Dong Cc: linux-clk@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Abel Vesa , Peng Fan , Jacky Bai X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1730030419; l=1523; i=peng.fan@nxp.com; s=20230812; h=from:subject:message-id; bh=Sv4CHyV16UexiFdZ+yIX03Ey/S7U3vzUPoU0hMATx6E=; b=49dTChbtqNlnbbplHLJZs31aa3JMeZB8wQmI3HcIGYjWcHArhOOQo1+zpUfbsOUg/q8r8bdpW raQGeeSPMZSDY/3QieffMt3cBIzDxzf+6Kjj9SfZTHUnJwaVnajluWv X-Developer-Key: i=peng.fan@nxp.com; a=ed25519; pk=I4sJg7atIT1g63H7bb5lDRGR2gJW14RKDD0wFL8TT1g= X-ClientProxiedBy: SG2P153CA0011.APCP153.PROD.OUTLOOK.COM (2603:1096::21) To DB9PR04MB8461.eurprd04.prod.outlook.com (2603:10a6:10:2cf::20) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DB9PR04MB8461:EE_|AS8PR04MB8689:EE_ X-MS-Office365-Filtering-Correlation-Id: ff829c43-855e-47a4-77cb-08dcf67d8074 X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|52116014|7416014|1800799024|366016|376014|38350700014; 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Program appropriate value of DIV[ODIV], DIV[RDIV] and DIV[MFI] as per Integer mode. 2. Wait for 5 =CE=BCs. 3. Program the following field in CTRL register. Set CTRL[POWERUP] to 1'b1 to enable PLL block. 4. Poll PLL_STATUS[PLL_LOCK] register, and wait till PLL_STATUS[PLL_LOCK] is 1'b1 and pll_lock output signal is 1'b1. 5. Set CTRL[CLKMUX_EN] to 1'b1 to enable PLL output clock. So move the CLKMUX_EN operation after PLL locked. Fixes: 1b26cb8a77a4 ("clk: imx: support fracn gppll") Co-developed-by: Jacky Bai Signed-off-by: Jacky Bai Signed-off-by: Peng Fan Reviewed-by: Abel Vesa --- drivers/clk/imx/clk-fracn-gppll.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/clk/imx/clk-fracn-gppll.c b/drivers/clk/imx/clk-fracn-= gppll.c index 591e0364ee5c113859a7b6271c8c11e98a0e0ffc..4749c3e0b7051cf53876664808a= a28742f6861f7 100644 --- a/drivers/clk/imx/clk-fracn-gppll.c +++ b/drivers/clk/imx/clk-fracn-gppll.c @@ -303,13 +303,13 @@ static int clk_fracn_gppll_prepare(struct clk_hw *hw) val |=3D POWERUP_MASK; writel_relaxed(val, pll->base + PLL_CTRL); =20 - val |=3D CLKMUX_EN; - writel_relaxed(val, pll->base + PLL_CTRL); - ret =3D clk_fracn_gppll_wait_lock(pll); if (ret) return ret; =20 + val |=3D CLKMUX_EN; + writel_relaxed(val, pll->base + PLL_CTRL); + val &=3D ~CLKMUX_BYPASS; writel_relaxed(val, pll->base + PLL_CTRL); =20 --=20 2.37.1