// 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 struct drm_bridge_timings mhdp_ti_j721e_bridge_timings = {
|
.input_bus_flags = DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE |
|
DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE |
|
DRM_BUS_FLAG_DE_HIGH,
|
};
|
