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Thu, 15 Jun 2023 01:41:37 +0000 From: Sandor Yu To: andrzej.hajda@intel.com, neil.armstrong@linaro.org, robert.foss@linaro.org, Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se, jernej.skrabec@gmail.com, airlied@gmail.com, daniel@ffwll.ch, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com, vkoul@kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org Subject: [PATCH v6 4/8] phy: Add HDMI configuration options Date: Thu, 15 Jun 2023 09:38:14 +0800 Message-Id: X-Mailer: git-send-email 2.34.1 In-Reply-To: References: X-ClientProxiedBy: SG2PR01CA0176.apcprd01.prod.exchangelabs.com (2603:1096:4:28::32) To PAXPR04MB9448.eurprd04.prod.outlook.com (2603:10a6:102:2b1::21) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PAXPR04MB9448:EE_|AM8PR04MB8034:EE_ X-MS-Office365-Filtering-Correlation-Id: bf050f20-0c04-4b94-c47f-08db6d41a8af 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 HDMI PHY implementation practices. The current set of parameters should cover the potential users. Signed-off-by: Sandor Yu --- include/linux/phy/phy-hdmi.h | 38 ++++++++++++++++++++++++++++++++++++ include/linux/phy/phy.h | 7 ++++++- 2 files changed, 44 insertions(+), 1 deletion(-) create mode 100644 include/linux/phy/phy-hdmi.h diff --git a/include/linux/phy/phy-hdmi.h b/include/linux/phy/phy-hdmi.h new file mode 100644 index 000000000000..5765aa5bc175 --- /dev/null +++ b/include/linux/phy/phy-hdmi.h @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2022 NXP + */ + +#ifndef __PHY_HDMI_H_ +#define __PHY_HDMI_H_ + +/** + * Pixel Encoding as HDMI Specification + * RGB, YUV422, YUV444:HDMI Specification 1.4a Section 6.5 + * YUV420: HDMI Specification 2.a Section 7.1 + */ +enum hdmi_phy_colorspace { + HDMI_PHY_COLORSPACE_RGB, /* RGB 4:4:4 */ + HDMI_PHY_COLORSPACE_YUV422, /* YCbCr 4:2:2 */ + HDMI_PHY_COLORSPACE_YUV444, /* YCbCr 4:4:4 */ + HDMI_PHY_COLORSPACE_YUV420, /* YCbCr 4:2:0 */ + HDMI_PHY_COLORSPACE_RESERVED4, + HDMI_PHY_COLORSPACE_RESERVED5, + HDMI_PHY_COLORSPACE_RESERVED6, +}; + +/** + * struct phy_configure_opts_hdmi - HDMI configuration set + * @pixel_clk_rate: Pixel clock of video modes in KHz. + * @bpc: Maximum bits per color channel. + * @color_space: Colorspace in enum hdmi_phy_colorspace. + * + * This structure is used to represent the configuration state of a HDMI phy. + */ +struct phy_configure_opts_hdmi { + unsigned int pixel_clk_rate; + unsigned int bpc; + enum hdmi_phy_colorspace color_space; +}; + +#endif /* __PHY_HDMI_H_ */ diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index 3a570bc59fc7..93d77d45b1d4 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -17,6 +17,7 @@ #include #include +#include #include #include @@ -42,7 +43,8 @@ enum phy_mode { PHY_MODE_MIPI_DPHY, PHY_MODE_SATA, PHY_MODE_LVDS, - PHY_MODE_DP + PHY_MODE_DP, + PHY_MODE_HDMI, }; enum phy_media { @@ -60,11 +62,14 @@ enum phy_media { * the DisplayPort protocol. * @lvds: Configuration set applicable for phys supporting * the LVDS phy mode. + * @hdmi: Configuration set applicable for phys supporting + * the HDMI 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; + struct phy_configure_opts_hdmi hdmi; }; /**