// SPDX-License-Identifier: GPL-2.0 /* * TI j721e Cadence MHDP8546 DP wrapper * * Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/ * Author: Jyri Sarha <jsarha@ti.com> */ #include <linux/io.h> #include <linux/platform_device.h> #include "cdns-mhdp8546-j721e.h" #define REVISION 0x00 #define DPTX_IPCFG 0x04 #define ECC_MEM_CFG 0x08 #define DPTX_DSC_CFG 0x0c #define DPTX_SRC_CFG 0x10 #define DPTX_VIF_SECURE_MODE_CFG 0x14 #define DPTX_VIF_CONN_STATUS 0x18 #define PHY_CLK_STATUS 0x1c #define DPTX_SRC_AIF_EN BIT(16) #define DPTX_SRC_VIF_3_IN30B BIT(11) #define DPTX_SRC_VIF_2_IN30B BIT(10) #define DPTX_SRC_VIF_1_IN30B BIT(9) #define DPTX_SRC_VIF_0_IN30B BIT(8) #define DPTX_SRC_VIF_3_SEL_DPI5 BIT(7) #define DPTX_SRC_VIF_3_SEL_DPI3 0 #define DPTX_SRC_VIF_2_SEL_DPI4 BIT(6) #define DPTX_SRC_VIF_2_SEL_DPI2 0 #define DPTX_SRC_VIF_1_SEL_DPI3 BIT(5) #define DPTX_SRC_VIF_1_SEL_DPI1 0 #define DPTX_SRC_VIF_0_SEL_DPI2 BIT(4) #define DPTX_SRC_VIF_0_SEL_DPI0 0 #define DPTX_SRC_VIF_3_EN BIT(3) #define DPTX_SRC_VIF_2_EN BIT(2) #define DPTX_SRC_VIF_1_EN BIT(1) #define DPTX_SRC_VIF_0_EN BIT(0) /* TODO turn DPTX_IPCFG fw_mem_clk_en at pm_runtime_suspend. */ static int cdns_mhdp_j721e_init(struct cdns_mhdp_device *mhdp) { struct platform_device *pdev = to_platform_device(mhdp->dev); mhdp->j721e_regs = devm_platform_ioremap_resource(pdev, 1); return PTR_ERR_OR_ZERO(mhdp->j721e_regs); } static void cdns_mhdp_j721e_enable(struct cdns_mhdp_device *mhdp) { /* * Enable VIF_0 and select DPI2 as its input. DSS0 DPI0 is connected * to eDP DPI2. This is the only supported SST configuration on * J721E. */ writel(DPTX_SRC_VIF_0_EN | DPTX_SRC_VIF_0_SEL_DPI2, mhdp->j721e_regs + DPTX_SRC_CFG); } static void cdns_mhdp_j721e_disable(struct cdns_mhdp_device *mhdp) { /* Put everything to defaults */ writel(0, mhdp->j721e_regs + DPTX_DSC_CFG); } const struct mhdp_platform_ops mhdp_ti_j721e_ops = { .init = cdns_mhdp_j721e_init, .enable = cdns_mhdp_j721e_enable, .disable = cdns_mhdp_j721e_disable, }; const u32 mhdp_ti_j721e_bridge_input_bus_flags = DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE | DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE | DRM_BUS_FLAG_DE_HIGH