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kernel.org; dmarc=none action=none header.from=nxp.com; Received: from VE1PR04MB6638.eurprd04.prod.outlook.com (2603:10a6:803:119::15) by VE1PR04MB6383.eurprd04.prod.outlook.com (2603:10a6:803:11b::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3000.25; Thu, 21 May 2020 03:26:04 +0000 Received: from VE1PR04MB6638.eurprd04.prod.outlook.com ([fe80::5cc4:23a5:ca17:da7d]) by VE1PR04MB6638.eurprd04.prod.outlook.com ([fe80::5cc4:23a5:ca17:da7d%6]) with mapi id 15.20.3021.020; Thu, 21 May 2020 03:26:04 +0000 From: Robin Gong To: robh+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com, Anson.Huang@nxp.com Cc: kernel@pengutronix.de, linux-imx@nxp.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v1 2/2] arm64: dts: imx8mn-ddr4-evk: correct ldo1/ldo2 voltage range Date: Thu, 21 May 2020 19:26:08 +0800 Message-Id: <1590060368-2282-2-git-send-email-yibin.gong@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1590060368-2282-1-git-send-email-yibin.gong@nxp.com> References: <1590060368-2282-1-git-send-email-yibin.gong@nxp.com> X-ClientProxiedBy: SG2PR03CA0132.apcprd03.prod.outlook.com (2603:1096:4:91::36) To VE1PR04MB6638.eurprd04.prod.outlook.com (2603:10a6:803:119::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from robin-OptiPlex-790.ap.freescale.net (119.31.174.66) by SG2PR03CA0132.apcprd03.prod.outlook.com (2603:1096:4:91::36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.3021.11 via Frontend Transport; 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Actually, two voltage groups have been supported at bd718x7-regulator driver, hence, just corrrect the voltage range to 1.6v~3.3v. For ldo2@0.8v, correct voltage range too. Otherwise, ldo1 would be kept @3.0v and ldo2@0.9v which violate i.mx8mm datasheet as the below warning log in kernel: [ 0.995524] LDO1: Bringing 1800000uV into 3000000-3000000uV [ 0.999196] LDO2: Bringing 800000uV into 900000-900000uV Signed-off-by: Robin Gong --- arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts | 4 ++-- arch/arm64/boot/dts/freescale/imx8mn-evk.dts | 9 +++++++++ 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts b/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts index d07e0e6..a1e5483 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts @@ -113,7 +113,7 @@ ldo1_reg: LDO1 { regulator-name = "LDO1"; - regulator-min-microvolt = <3000000>; + regulator-min-microvolt = <1600000>; regulator-max-microvolt = <3300000>; regulator-boot-on; regulator-always-on; @@ -121,7 +121,7 @@ ldo2_reg: LDO2 { regulator-name = "LDO2"; - regulator-min-microvolt = <900000>; + regulator-min-microvolt = <800000>; regulator-max-microvolt = <900000>; regulator-boot-on; regulator-always-on; diff --git a/arch/arm64/boot/dts/freescale/imx8mn-evk.dts b/arch/arm64/boot/dts/freescale/imx8mn-evk.dts index 61f3519..117ff4b 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mn-evk.dts @@ -13,6 +13,15 @@ compatible = "fsl,imx8mn-evk", "fsl,imx8mn"; }; +&ecspi1 { + status = "okay"; +spidev0: spi@0 { + compatible = "ge,achc"; + reg = <0>; + spi-max-frequency = <1000000>; + }; +}; + &A53_0 { /delete-property/operating-points-v2; };