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Thu, 14 Jan 2021 09:32:33 +0000 From: Liu Ying To: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org Cc: airlied@linux.ie, daniel@ffwll.ch, robh+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, mchehab@kernel.org, a.hajda@samsung.com, narmstrong@baylibre.com, Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se, jernej.skrabec@siol.net, kishon@ti.com, vkoul@kernel.org Subject: [PATCH v2 01/14] phy: Add LVDS configuration options Date: Thu, 14 Jan 2021 17:21:59 +0800 Message-Id: <1610616132-8220-2-git-send-email-victor.liu@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1610616132-8220-1-git-send-email-victor.liu@nxp.com> References: <1610616132-8220-1-git-send-email-victor.liu@nxp.com> Content-Type: text/plain X-Originating-IP: [119.31.174.66] X-ClientProxiedBy: SG2PR04CA0175.apcprd04.prod.outlook.com (2603:1096:4:14::13) To VI1PR04MB3983.eurprd04.prod.outlook.com (2603:10a6:803:4c::16) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (119.31.174.66) by SG2PR04CA0175.apcprd04.prod.outlook.com (2603:1096:4:14::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.3763.10 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData: =?us-ascii?Q?veTESyMbflWOpPzYZoOE+DLQRcxHNaL/8noDl1a+ninnVtF5hgY0O0O8k4F/?= =?us-ascii?Q?+Me3TZilANJNcgC6RO+py149tBzYlET5wvcExSCqkfWjLUoyMmJD1L+5YAjW?= =?us-ascii?Q?toJWf2mShu1FrNzDMM8lwygyw8xE+vb4BZ+EC2181tM8FCAhCseGC3rw+zge?= =?us-ascii?Q?ZGR8AEr804uAzjJO/dm01pKxf1l5xpIHPLl2R75x3uOXL4O0epRpOIQR/lrh?= =?us-ascii?Q?7ccqWzR9cg595DFV4y4QJdjEs+18nEzNrUw7pFwpl4aPhHQMbLdpo2VgSdia?= =?us-ascii?Q?FBMCd3ygBHJc9WqJ3LLEtLpajnSVGRuocZ/ipqVhuQ+SKcQWsW7Qru6cx8kd?= =?us-ascii?Q?yQgMkv/VKKO0BaZc4yszI3ooMXUQ5Ws/5HRIAu5dpMD0KT45OoQoDRgtP7QB?= =?us-ascii?Q?TRRLbYVcqMLmM+ovzASXf/N9qPtJtKEAbPYGIQmQ5TZg4iQR/xhn47CWuwEh?= =?us-ascii?Q?D7GGaQqQ78CgpR2v0whmNwGCX4mFROgV+JW756MvtdrRb7o2q+HYj/6i5z4M?= =?us-ascii?Q?QGGXk7WsGcnZbQF5YDqkSvm0nFkTyWDkxoTS8ST9r7/tfXC3qj7ohfMn68U5?= =?us-ascii?Q?sag3OpxlCZfcyJODC5zzbljnNLxSn1lBu3pptK4sPQf1mBUYu29ioCSKYhJs?= =?us-ascii?Q?BJrh5T047HX3Knm3yXu6LRLppe/363beWSrNddjHMgaurVVbf5MSlYKspuV5?= =?us-ascii?Q?aLn1lUmpm+tnfigVBnxml0QN00IGgYDnqNQzVQy+z4uXtgxNaiiF4CV+iQcJ?= =?us-ascii?Q?Zhs3qevA07OCHy8HK3jQpnv6Csuq0bbGFuY4u0qTJhWJsdi4nB/vCKX6rSJH?= =?us-ascii?Q?I4aMASY2O7TtV1RDgpHGqdbuBkJ1lqCn9rRULSOdijhqeUop7gFANlJ9FbId?= =?us-ascii?Q?6H9YXXcsuWaOK/5BakIBKTLUCSGzfABO1MJIerTZsOdMrfKpTEKiHF54hO/B?= =?us-ascii?Q?V5kM0gr6k46luAv9WQ/NMj0bwjc23XsYEjeB7hQP9ZqHH+izzQz232usUjV9?= =?us-ascii?Q?KQ7h?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-AuthSource: VI1PR04MB3983.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Jan 2021 09:32:32.9531 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-Network-Message-Id: 58ff588b-ac64-4cd7-6ea2-08d8b86f5213 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: xUdWaiUjG0lKPsOzNWJErCZtETQPJSI8XgbFXBsOCxPWAD1+O85ygHxi4T/Kb77MiuMI0w6YrEToYsN122/LOQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB4893 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch allows LVDS PHYs to be configured through the generic functions and through a custom structure added to the generic union. 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 --- v1->v2: * No change. include/linux/phy/phy-lvds.h | 48 ++++++++++++++++++++++++++++++++++++++++++++ include/linux/phy/phy.h | 4 ++++ 2 files changed, 52 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 00000000..1b5b9d6 --- /dev/null +++ b/include/linux/phy/phy-lvds.h @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2020 NXP + */ + +#ifndef __PHY_LVDS_H_ +#define __PHY_LVDS_H_ + +/** + * struct phy_configure_opts_lvds - LVDS configuration set + * + * This structure is used to represent the configuration state of a + * LVDS phy. + */ +struct phy_configure_opts_lvds { + /** + * @bits_per_lane_and_dclk_cycle: + * + * Number of bits per data lane and differential clock cycle. + */ + unsigned int bits_per_lane_and_dclk_cycle; + + /** + * @differential_clk_rate: + * + * Clock rate, in Hertz, of the LVDS differential clock. + */ + unsigned long differential_clk_rate; + + /** + * @lanes: + * + * Number of active, consecutive, data lanes, starting from + * lane 0, used for the transmissions. + */ + unsigned int lanes; + + /** + * @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. + */ + bool is_slave; +}; + +#endif /* __PHY_LVDS_H_ */ diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index e435bdb..d450b44 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -17,6 +17,7 @@ #include #include +#include #include struct phy; @@ -51,10 +52,13 @@ enum phy_mode { * 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; }; /** -- 2.7.4