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Mon, 11 Nov 2019 13:28:57 +0000 From: To: , , , , , CC: , , Subject: [PATCH] clk: at91: sam9x60-pll: adapt PMC_PLL_ACR default value Thread-Topic: [PATCH] clk: at91: sam9x60-pll: adapt PMC_PLL_ACR default value Thread-Index: AQHVmJP4gkFvDXEvgEe8yodmIU1IZg== Date: Mon, 11 Nov 2019 13:28:57 +0000 Message-ID: <1573478913-19737-1-git-send-email-eugen.hristev@microchip.com> Accept-Language: en-US, ro-RO Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: AM0PR07CA0003.eurprd07.prod.outlook.com (2603:10a6:208:ac::16) To DM5PR11MB1242.namprd11.prod.outlook.com (2603:10b6:3:14::8) x-mailer: git-send-email 2.7.4 x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [94.177.32.156] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: d3aba037-487f-4e8c-5dcd-08d766ab1ae0 x-ms-traffictypediagnostic: DM5PR11MB1449: x-ms-exchange-purlcount: 1 x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:3173; 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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: d3aba037-487f-4e8c-5dcd-08d766ab1ae0 X-MS-Exchange-CrossTenant-originalarrivaltime: 11 Nov 2019 13:28:57.4805 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 3f4057f3-b418-4d4e-ba84-d55b4e897d88 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: 4CYPko8o8LQvvv0Pjd/DV7PyrNYh+/xALlDnLALEZONFQlTiwhkWWgyKHpAq1h3QuCF0sD6hSt16Ay1fB5fkBUMTQupzSc+IhJyTjX+MAqw= X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR11MB1449 Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org From: Eugen Hristev Product datasheet recommends different values for UPLL and PLLA analog cont= rol register. Adapt accordingly. Signed-off-by: Eugen Hristev --- datasheet link http://ww1.microchip.com/downloads/en/DeviceDoc/SAM9X60-Data= -Sheet-DS60001579A.pdf chapter 57.7.10 optimal setting of the PLLA and PLLUTMI drivers/clk/at91/clk-sam9x60-pll.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/clk/at91/clk-sam9x60-pll.c b/drivers/clk/at91/clk-sam9= x60-pll.c index 34b8178..dfb354a 100644 --- a/drivers/clk/at91/clk-sam9x60-pll.c +++ b/drivers/clk/at91/clk-sam9x60-pll.c @@ -25,7 +25,8 @@ #define PMC_PLL_CTRL1_MUL_MSK GENMASK(30, 24) =20 #define PMC_PLL_ACR 0x18 -#define PMC_PLL_ACR_DEFAULT 0x1b040010UL +#define PMC_PLL_ACR_DEFAULT_UPLL 0x12020010UL +#define PMC_PLL_ACR_DEFAULT_PLLA 0x00020010UL #define PMC_PLL_ACR_UTMIVR BIT(12) #define PMC_PLL_ACR_UTMIBG BIT(13) #define PMC_PLL_ACR_LOOP_FILTER_MSK GENMASK(31, 24) @@ -88,7 +89,10 @@ static int sam9x60_pll_prepare(struct clk_hw *hw) } =20 /* Recommended value for PMC_PLL_ACR */ - val =3D PMC_PLL_ACR_DEFAULT; + if (pll->characteristics->upll) + val =3D PMC_PLL_ACR_DEFAULT_UPLL; + else + val =3D PMC_PLL_ACR_DEFAULT_PLLA; regmap_write(regmap, PMC_PLL_ACR, val); =20 regmap_write(regmap, PMC_PLL_CTRL1, --=20 2.7.4