356 lines
8.3 KiB
C
356 lines
8.3 KiB
C
/*
|
|
* Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/mfd/syscon.h>
|
|
#include <linux/regmap.h>
|
|
#include <drm/drm_of.h>
|
|
#include <drm/drmP.h>
|
|
#include <drm/drm_crtc_helper.h>
|
|
#include <drm/drm_edid.h>
|
|
#include <drm/drm_encoder_slave.h>
|
|
#include <drm/bridge/dw_hdmi.h>
|
|
|
|
#include "rockchip_drm_drv.h"
|
|
#include "rockchip_drm_vop.h"
|
|
|
|
#define GRF_SOC_CON6 0x025c
|
|
#define HDMI_SEL_VOP_LIT (1 << 4)
|
|
|
|
struct rockchip_hdmi {
|
|
struct device *dev;
|
|
struct regmap *regmap;
|
|
struct drm_encoder encoder;
|
|
};
|
|
|
|
#define to_rockchip_hdmi(x) container_of(x, struct rockchip_hdmi, x)
|
|
|
|
static const struct dw_hdmi_mpll_config rockchip_mpll_cfg[] = {
|
|
{
|
|
27000000, {
|
|
{ 0x00b3, 0x0000},
|
|
{ 0x2153, 0x0000},
|
|
{ 0x40f3, 0x0000}
|
|
},
|
|
}, {
|
|
36000000, {
|
|
{ 0x00b3, 0x0000},
|
|
{ 0x2153, 0x0000},
|
|
{ 0x40f3, 0x0000}
|
|
},
|
|
}, {
|
|
40000000, {
|
|
{ 0x00b3, 0x0000},
|
|
{ 0x2153, 0x0000},
|
|
{ 0x40f3, 0x0000}
|
|
},
|
|
}, {
|
|
54000000, {
|
|
{ 0x0072, 0x0001},
|
|
{ 0x2142, 0x0001},
|
|
{ 0x40a2, 0x0001},
|
|
},
|
|
}, {
|
|
65000000, {
|
|
{ 0x0072, 0x0001},
|
|
{ 0x2142, 0x0001},
|
|
{ 0x40a2, 0x0001},
|
|
},
|
|
}, {
|
|
66000000, {
|
|
{ 0x013e, 0x0003},
|
|
{ 0x217e, 0x0002},
|
|
{ 0x4061, 0x0002}
|
|
},
|
|
}, {
|
|
74250000, {
|
|
{ 0x0072, 0x0001},
|
|
{ 0x2145, 0x0002},
|
|
{ 0x4061, 0x0002}
|
|
},
|
|
}, {
|
|
83500000, {
|
|
{ 0x0072, 0x0001},
|
|
},
|
|
}, {
|
|
108000000, {
|
|
{ 0x0051, 0x0002},
|
|
{ 0x2145, 0x0002},
|
|
{ 0x4061, 0x0002}
|
|
},
|
|
}, {
|
|
106500000, {
|
|
{ 0x0051, 0x0002},
|
|
{ 0x2145, 0x0002},
|
|
{ 0x4061, 0x0002}
|
|
},
|
|
}, {
|
|
146250000, {
|
|
{ 0x0051, 0x0002},
|
|
{ 0x2145, 0x0002},
|
|
{ 0x4061, 0x0002}
|
|
},
|
|
}, {
|
|
148500000, {
|
|
{ 0x0051, 0x0003},
|
|
{ 0x214c, 0x0003},
|
|
{ 0x4064, 0x0003}
|
|
},
|
|
}, {
|
|
~0UL, {
|
|
{ 0x00a0, 0x000a },
|
|
{ 0x2001, 0x000f },
|
|
{ 0x4002, 0x000f },
|
|
},
|
|
}
|
|
};
|
|
|
|
static const struct dw_hdmi_curr_ctrl rockchip_cur_ctr[] = {
|
|
/* pixelclk bpp8 bpp10 bpp12 */
|
|
{
|
|
40000000, { 0x0018, 0x0018, 0x0018 },
|
|
}, {
|
|
65000000, { 0x0028, 0x0028, 0x0028 },
|
|
}, {
|
|
66000000, { 0x0038, 0x0038, 0x0038 },
|
|
}, {
|
|
74250000, { 0x0028, 0x0038, 0x0038 },
|
|
}, {
|
|
83500000, { 0x0028, 0x0038, 0x0038 },
|
|
}, {
|
|
146250000, { 0x0038, 0x0038, 0x0038 },
|
|
}, {
|
|
148500000, { 0x0000, 0x0038, 0x0038 },
|
|
}, {
|
|
~0UL, { 0x0000, 0x0000, 0x0000},
|
|
}
|
|
};
|
|
|
|
static const struct dw_hdmi_phy_config rockchip_phy_config[] = {
|
|
/*pixelclk symbol term vlev*/
|
|
{ 74250000, 0x8009, 0x0004, 0x0272},
|
|
{ 148500000, 0x802b, 0x0004, 0x028d},
|
|
{ 297000000, 0x8039, 0x0005, 0x028d},
|
|
{ ~0UL, 0x0000, 0x0000, 0x0000}
|
|
};
|
|
|
|
static int rockchip_hdmi_parse_dt(struct rockchip_hdmi *hdmi)
|
|
{
|
|
struct device_node *np = hdmi->dev->of_node;
|
|
|
|
hdmi->regmap = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");
|
|
if (IS_ERR(hdmi->regmap)) {
|
|
dev_err(hdmi->dev, "Unable to get rockchip,grf\n");
|
|
return PTR_ERR(hdmi->regmap);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static enum drm_mode_status
|
|
dw_hdmi_rockchip_mode_valid(struct drm_connector *connector,
|
|
struct drm_display_mode *mode)
|
|
{
|
|
const struct dw_hdmi_mpll_config *mpll_cfg = rockchip_mpll_cfg;
|
|
int pclk = mode->clock * 1000;
|
|
bool valid = false;
|
|
int i;
|
|
|
|
for (i = 0; mpll_cfg[i].mpixelclock != (~0UL); i++) {
|
|
if (pclk == mpll_cfg[i].mpixelclock) {
|
|
valid = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return (valid) ? MODE_OK : MODE_BAD;
|
|
}
|
|
|
|
static const struct drm_encoder_funcs dw_hdmi_rockchip_encoder_funcs = {
|
|
.destroy = drm_encoder_cleanup,
|
|
};
|
|
|
|
static void dw_hdmi_rockchip_encoder_disable(struct drm_encoder *encoder)
|
|
{
|
|
}
|
|
|
|
static bool
|
|
dw_hdmi_rockchip_encoder_mode_fixup(struct drm_encoder *encoder,
|
|
const struct drm_display_mode *mode,
|
|
struct drm_display_mode *adj_mode)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
static void dw_hdmi_rockchip_encoder_mode_set(struct drm_encoder *encoder,
|
|
struct drm_display_mode *mode,
|
|
struct drm_display_mode *adj_mode)
|
|
{
|
|
}
|
|
|
|
static void dw_hdmi_rockchip_encoder_enable(struct drm_encoder *encoder)
|
|
{
|
|
struct rockchip_hdmi *hdmi = to_rockchip_hdmi(encoder);
|
|
u32 val;
|
|
int mux;
|
|
|
|
mux = drm_of_encoder_active_endpoint_id(hdmi->dev->of_node, encoder);
|
|
if (mux)
|
|
val = HDMI_SEL_VOP_LIT | (HDMI_SEL_VOP_LIT << 16);
|
|
else
|
|
val = HDMI_SEL_VOP_LIT << 16;
|
|
|
|
regmap_write(hdmi->regmap, GRF_SOC_CON6, val);
|
|
dev_dbg(hdmi->dev, "vop %s output to hdmi\n",
|
|
(mux) ? "LIT" : "BIG");
|
|
}
|
|
|
|
static int
|
|
dw_hdmi_rockchip_encoder_atomic_check(struct drm_encoder *encoder,
|
|
struct drm_crtc_state *crtc_state,
|
|
struct drm_connector_state *conn_state)
|
|
{
|
|
struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc_state);
|
|
|
|
s->output_mode = ROCKCHIP_OUT_MODE_AAAA;
|
|
s->output_type = DRM_MODE_CONNECTOR_HDMIA;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct drm_encoder_helper_funcs dw_hdmi_rockchip_encoder_helper_funcs = {
|
|
.mode_fixup = dw_hdmi_rockchip_encoder_mode_fixup,
|
|
.mode_set = dw_hdmi_rockchip_encoder_mode_set,
|
|
.enable = dw_hdmi_rockchip_encoder_enable,
|
|
.disable = dw_hdmi_rockchip_encoder_disable,
|
|
.atomic_check = dw_hdmi_rockchip_encoder_atomic_check,
|
|
};
|
|
|
|
static const struct dw_hdmi_plat_data rockchip_hdmi_drv_data = {
|
|
.mode_valid = dw_hdmi_rockchip_mode_valid,
|
|
.mpll_cfg = rockchip_mpll_cfg,
|
|
.cur_ctr = rockchip_cur_ctr,
|
|
.phy_config = rockchip_phy_config,
|
|
.dev_type = RK3288_HDMI,
|
|
};
|
|
|
|
static const struct of_device_id dw_hdmi_rockchip_dt_ids[] = {
|
|
{ .compatible = "rockchip,rk3288-dw-hdmi",
|
|
.data = &rockchip_hdmi_drv_data
|
|
},
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(of, dw_hdmi_rockchip_dt_ids);
|
|
|
|
static int dw_hdmi_rockchip_bind(struct device *dev, struct device *master,
|
|
void *data)
|
|
{
|
|
struct platform_device *pdev = to_platform_device(dev);
|
|
const struct dw_hdmi_plat_data *plat_data;
|
|
const struct of_device_id *match;
|
|
struct drm_device *drm = data;
|
|
struct drm_encoder *encoder;
|
|
struct rockchip_hdmi *hdmi;
|
|
struct resource *iores;
|
|
int irq;
|
|
int ret;
|
|
|
|
if (!pdev->dev.of_node)
|
|
return -ENODEV;
|
|
|
|
hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
|
|
if (!hdmi)
|
|
return -ENOMEM;
|
|
|
|
match = of_match_node(dw_hdmi_rockchip_dt_ids, pdev->dev.of_node);
|
|
plat_data = match->data;
|
|
hdmi->dev = &pdev->dev;
|
|
encoder = &hdmi->encoder;
|
|
|
|
irq = platform_get_irq(pdev, 0);
|
|
if (irq < 0)
|
|
return irq;
|
|
|
|
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
if (!iores)
|
|
return -ENXIO;
|
|
|
|
encoder->possible_crtcs = drm_of_find_possible_crtcs(drm, dev->of_node);
|
|
/*
|
|
* If we failed to find the CRTC(s) which this encoder is
|
|
* supposed to be connected to, it's because the CRTC has
|
|
* not been registered yet. Defer probing, and hope that
|
|
* the required CRTC is added later.
|
|
*/
|
|
if (encoder->possible_crtcs == 0)
|
|
return -EPROBE_DEFER;
|
|
|
|
ret = rockchip_hdmi_parse_dt(hdmi);
|
|
if (ret) {
|
|
dev_err(hdmi->dev, "Unable to parse OF data\n");
|
|
return ret;
|
|
}
|
|
|
|
drm_encoder_helper_add(encoder, &dw_hdmi_rockchip_encoder_helper_funcs);
|
|
drm_encoder_init(drm, encoder, &dw_hdmi_rockchip_encoder_funcs,
|
|
DRM_MODE_ENCODER_TMDS, NULL);
|
|
|
|
ret = dw_hdmi_bind(dev, master, data, encoder, iores, irq, plat_data);
|
|
|
|
/*
|
|
* If dw_hdmi_bind() fails we'll never call dw_hdmi_unbind(),
|
|
* which would have called the encoder cleanup. Do it manually.
|
|
*/
|
|
if (ret)
|
|
drm_encoder_cleanup(encoder);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void dw_hdmi_rockchip_unbind(struct device *dev, struct device *master,
|
|
void *data)
|
|
{
|
|
return dw_hdmi_unbind(dev, master, data);
|
|
}
|
|
|
|
static const struct component_ops dw_hdmi_rockchip_ops = {
|
|
.bind = dw_hdmi_rockchip_bind,
|
|
.unbind = dw_hdmi_rockchip_unbind,
|
|
};
|
|
|
|
static int dw_hdmi_rockchip_probe(struct platform_device *pdev)
|
|
{
|
|
return component_add(&pdev->dev, &dw_hdmi_rockchip_ops);
|
|
}
|
|
|
|
static int dw_hdmi_rockchip_remove(struct platform_device *pdev)
|
|
{
|
|
component_del(&pdev->dev, &dw_hdmi_rockchip_ops);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver dw_hdmi_rockchip_pltfm_driver = {
|
|
.probe = dw_hdmi_rockchip_probe,
|
|
.remove = dw_hdmi_rockchip_remove,
|
|
.driver = {
|
|
.name = "dwhdmi-rockchip",
|
|
.of_match_table = dw_hdmi_rockchip_dt_ids,
|
|
},
|
|
};
|
|
|
|
module_platform_driver(dw_hdmi_rockchip_pltfm_driver);
|
|
|
|
MODULE_AUTHOR("Andy Yan <andy.yan@rock-chips.com>");
|
|
MODULE_AUTHOR("Yakir Yang <ykk@rock-chips.com>");
|
|
MODULE_DESCRIPTION("Rockchip Specific DW-HDMI Driver Extension");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:dwhdmi-rockchip");
|