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b=eheeULgu81vY5G3fOXJ1roIIqTjTeVwMjaMnv/il6CkkAzo2F2RYjTvh7ivap9sRHCGG3ME8oJE6NsvQdZoQrga7sqC0JFndTQypkTKrau2DfDGwe/QQRoQ9Bxhwr8x6EP0oOnjo0agEKn1fJQJb0cSKzvtTOYRJ8JRV/EeFWPk= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from AM7PR04MB7046.eurprd04.prod.outlook.com (2603:10a6:20b:113::22) by AM6PR04MB4744.eurprd04.prod.outlook.com (2603:10a6:20b:5::30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5144.30; Thu, 14 Apr 2022 06:47:35 +0000 Received: from AM7PR04MB7046.eurprd04.prod.outlook.com ([fe80::b09c:8ffe:8e02:7387]) by AM7PR04MB7046.eurprd04.prod.outlook.com ([fe80::b09c:8ffe:8e02:7387%9]) with mapi id 15.20.5164.018; Thu, 14 Apr 2022 06:47:35 +0000 From: Liu Ying To: linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org Cc: kishon@ti.com, vkoul@kernel.org, robh+dt@kernel.org, krzk+dt@kernel.org, andrzej.hajda@intel.com, narmstrong@baylibre.com, robert.foss@linaro.org, Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se, jernej.skrabec@gmail.com, airlied@linux.ie, daniel@ffwll.ch, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, agx@sigxcpu.org, robert.chiras@nxp.com, martin.kepplinger@puri.sm Subject: [PATCH v7 2/5] phy: Add LVDS configuration options Date: Thu, 14 Apr 2022 14:48:55 +0800 Message-Id: <20220414064858.405096-3-victor.liu@nxp.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220414064858.405096-1-victor.liu@nxp.com> References: <20220414064858.405096-1-victor.liu@nxp.com> X-ClientProxiedBy: SI2PR06CA0005.apcprd06.prod.outlook.com (2603:1096:4:186::12) To AM7PR04MB7046.eurprd04.prod.outlook.com (2603:10a6:20b:113::22) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 26dbf842-370c-4f30-8123-08da1de2a8a8 X-MS-TrafficTypeDiagnostic: AM6PR04MB4744:EE_ X-Microsoft-Antispam-PRVS: X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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The parameters added here are based on common LVDS PHY implementation practices. The set of parameters should cover all potential users. Cc: Kishon Vijay Abraham I Cc: Vinod Koul Cc: NXP Linux Team Signed-off-by: Liu Ying --- v6->v7: * Update the year of copyright. * Better variable explaination for bits_per_lane_and_dclk_cycle. v5->v6: * Rebase upon v5.17-rc1. v4->v5: * Align kernel-doc style to include/linux/phy/phy.h. (Vinod) * Trivial tweaks. * Drop Robert's R-b tag. v3->v4: * Add Robert's R-b tag. v2->v3: * No change. v1->v2: * No change. include/linux/phy/phy-lvds.h | 32 ++++++++++++++++++++++++++++++++ include/linux/phy/phy.h | 4 ++++ 2 files changed, 36 insertions(+) create mode 100644 include/linux/phy/phy-lvds.h diff --git a/include/linux/phy/phy-lvds.h b/include/linux/phy/phy-lvds.h new file mode 100644 index 000000000000..9f06dfedc435 --- /dev/null +++ b/include/linux/phy/phy-lvds.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2020,2022 NXP + */ + +#ifndef __PHY_LVDS_H_ +#define __PHY_LVDS_H_ + +/** + * struct phy_configure_opts_lvds - LVDS configuration set + * @bits_per_lane_and_dclk_cycle: Number of bits per lane per differential + clock cycle. + * @differential_clk_rate: Clock rate, in Hertz, of the LVDS + * differential clock. + * @lanes: Number of active, consecutive, + * data lanes, starting from lane 0, + * used for the transmissions. + * @is_slave: Boolean, true if the phy is a slave + * which works together with a master + * phy to support dual link transmission, + * otherwise a regular phy or a master phy. + * + * This structure is used to represent the configuration state of a LVDS phy. + */ +struct phy_configure_opts_lvds { + unsigned int bits_per_lane_and_dclk_cycle; + unsigned long differential_clk_rate; + unsigned int lanes; + bool is_slave; +}; + +#endif /* __PHY_LVDS_H_ */ diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index f3286f4cd306..b1413757fcc3 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -17,6 +17,7 @@ #include #include +#include #include struct phy; @@ -57,10 +58,13 @@ enum phy_media { * the MIPI_DPHY phy mode. * @dp: Configuration set applicable for phys supporting * the DisplayPort protocol. + * @lvds: Configuration set applicable for phys supporting + * the LVDS phy mode. */ union phy_configure_opts { struct phy_configure_opts_mipi_dphy mipi_dphy; struct phy_configure_opts_dp dp; + struct phy_configure_opts_lvds lvds; }; /**