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The QIXIS FPGA on the LS1028A-QDS boards has a similar purpose to the Kontron SL28 CPLD: it deals with board power-on reset timing, muxing, etc. Signed-off-by: Vladimir Oltean --- drivers/mfd/simple-mfd-i2c.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mfd/simple-mfd-i2c.c b/drivers/mfd/simple-mfd-i2c.c index 51536691ad9d..fee709fed97a 100644 --- a/drivers/mfd/simple-mfd-i2c.c +++ b/drivers/mfd/simple-mfd-i2c.c @@ -63,6 +63,7 @@ static int simple_mfd_i2c_probe(struct i2c_client *i2c) } static const struct of_device_id simple_mfd_i2c_of_match[] = { + { .compatible = "fsl,ls1028a-qds-qixis-i2c" }, { .compatible = "kontron,sl28cpld" }, {} }; From patchwork Thu Jan 27 17:21:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Oltean X-Patchwork-Id: 12727125 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5C261C433FE for ; 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Signed-off-by: Vladimir Oltean --- Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml b/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml index eb3b43547cb6..8c1216eb36ee 100644 --- a/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml +++ b/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml @@ -16,7 +16,9 @@ description: | properties: compatible: - const: kontron,sl28cpld + enum: + - fsl,ls1028a-qds-qixis-i2c + - kontron,sl28cpld reg: description: From patchwork Thu Jan 27 17:21:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Oltean X-Patchwork-Id: 12727132 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2E7DDC433F5 for ; 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Thu, 27 Jan 2022 17:21:26 +0000 Received: from VI1PR04MB5136.eurprd04.prod.outlook.com ([fe80::f4d7:e110:4789:67b1]) by VI1PR04MB5136.eurprd04.prod.outlook.com ([fe80::f4d7:e110:4789:67b1%5]) with mapi id 15.20.4930.015; Thu, 27 Jan 2022 17:21:26 +0000 From: Vladimir Oltean To: Shawn Guo , Lee Jones Cc: Andrew Lunn , Florian Fainelli , Claudiu Manoil , Rob Herring , Li Yang , Michael Walle , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 3/3] arm64: dts: ls1028a-qds: make the QIXIS CPLD use the simple-mfd-i2c.c driver Date: Thu, 27 Jan 2022 19:21:05 +0200 Message-Id: <20220127172105.4085950-4-vladimir.oltean@nxp.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220127172105.4085950-1-vladimir.oltean@nxp.com> References: <20220127172105.4085950-1-vladimir.oltean@nxp.com> X-ClientProxiedBy: AM4PR0501CA0047.eurprd05.prod.outlook.com (2603:10a6:200:68::15) To VI1PR04MB5136.eurprd04.prod.outlook.com (2603:10a6:803:55::19) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 51551422-bee0-41d9-5c96-08d9e1b972d3 X-MS-TrafficTypeDiagnostic: DU2PR04MB9017:EE_ X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:4502; 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The device tree was submitted as-is, and there is a downstream driver for the QIXIS FPGA: https://source.codeaurora.org/external/qoriq/qoriq-components/linux/tree/drivers/soc/fsl/qixis_ctrl.c?h=lf-5.10.72-2.2.0 That driver is very similar to the already existing drivers/mfd/simple-mfd-i2c.c, and the hardware works with the simple-mfd-i2c driver, so there isn't any reason to upstream the other one. This change adapts the compatible string and child node format of the FPGA node, so that the simple-mfd-i2c driver accepts it. Signed-off-by: Vladimir Oltean --- arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts index 177bc1405f0f..6bd58fd9c90f 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts @@ -314,17 +314,18 @@ sgtl5000: audio-codec@a { }; fpga@66 { - compatible = "fsl,ls1028aqds-fpga", "fsl,fpga-qixis-i2c", - "simple-mfd"; + compatible = "fsl,ls1028a-qds-qixis-i2c"; reg = <0x66>; + #address-cells = <1>; + #size-cells = <0>; - mux: mux-controller { + mux: mux-controller@54 { compatible = "reg-mux"; + reg = <0x54>; #mux-control-cells = <1>; mux-reg-masks = <0x54 0xf0>; /* 0: reg 0x54, bits 7:4 */ }; }; - }; &i2c1 {