android13/u-boot/drivers/video/drm/rockchip_rgb.c

686 lines
18 KiB
C

/*
* (C) Copyright 2008-2017 Fuzhou Rockchip Electronics Co., Ltd
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm/of_access.h>
#include <errno.h>
#include <syscon.h>
#include <regmap.h>
#include <dm/device.h>
#include <dm/read.h>
#include <dm/pinctrl.h>
#include <linux/media-bus-format.h>
#include <asm/gpio.h>
#include <backlight.h>
#include "rockchip_display.h"
#include "rockchip_crtc.h"
#include "rockchip_connector.h"
#include "rockchip_phy.h"
#include "rockchip_panel.h"
#define HIWORD_UPDATE(v, h, l) (((v) << (l)) | (GENMASK(h, l) << 16))
#define PX30_GRF_PD_VO_CON1 0x0438
#define PX30_RGB_DATA_SYNC_BYPASS(v) HIWORD_UPDATE(v, 3, 3)
#define PX30_RGB_VOP_SEL(v) HIWORD_UPDATE(v, 2, 2)
#define RK1808_GRF_PD_VO_CON1 0x0444
#define RK1808_RGB_DATA_SYNC_BYPASS(v) HIWORD_UPDATE(v, 3, 3)
#define RV1106_VENC_GRF_VOP_IO_WRAPPER 0x1000c
#define RV1106_IO_BYPASS_SEL(v) HIWORD_UPDATE(v, 0, 1)
#define RV1106_VOGRF_VOP_PIPE_BYPASS 0x60034
#define RV1106_VOP_PIPE_BYPASS(v) HIWORD_UPDATE(v, 0, 1)
#define RV1126_GRF_IOFUNC_CON3 0x1026c
#define RV1126_LCDC_IO_BYPASS(v) HIWORD_UPDATE(v, 0, 0)
#define RK3288_GRF_SOC_CON6 0x025c
#define RK3288_LVDS_LCDC_SEL(v) HIWORD_UPDATE(v, 3, 3)
#define RK3288_GRF_SOC_CON7 0x0260
#define RK3288_LVDS_PWRDWN(v) HIWORD_UPDATE(v, 15, 15)
#define RK3288_LVDS_CON_ENABLE_2(v) HIWORD_UPDATE(v, 12, 12)
#define RK3288_LVDS_CON_ENABLE_1(v) HIWORD_UPDATE(v, 11, 11)
#define RK3288_LVDS_CON_CLKINV(v) HIWORD_UPDATE(v, 8, 8)
#define RK3288_LVDS_CON_TTL_EN(v) HIWORD_UPDATE(v, 6, 6)
#define RK3368_GRF_SOC_CON15 0x043c
#define RK3368_FORCE_JETAG(v) HIWORD_UPDATE(v, 13, 13)
#define RK3562_GRF_IOC_VO_IO_CON 0x10500
#define RK3562_RGB_DATA_BYPASS(v) HIWORD_UPDATE(v, 6, 6)
#define RK3568_GRF_VO_CON1 0X0364
#define RK3568_RGB_DATA_BYPASS(v) HIWORD_UPDATE(v, 6, 6)
struct rockchip_rgb;
struct rockchip_rgb_funcs {
void (*prepare)(struct rockchip_rgb *rgb, int pipe);
void (*unprepare)(struct rockchip_rgb *rgb);
};
struct rockchip_rgb {
struct rockchip_connector connector;
int id;
struct udevice *dev;
struct regmap *grf;
bool data_sync_bypass;
struct rockchip_phy *phy;
const struct rockchip_rgb_funcs *funcs;
};
struct mcu_cmd_header {
u8 data_type;
u8 delay;
u8 payload_length;
} __packed;
struct mcu_cmd_desc {
struct mcu_cmd_header header;
const u8 *payload;
};
struct mcu_cmd_seq {
struct mcu_cmd_desc *cmds;
unsigned int cmd_cnt;
};
struct rockchip_mcu_panel_desc {
struct mcu_cmd_seq *init_seq;
struct mcu_cmd_seq *exit_seq;
struct {
unsigned int width;
unsigned int height;
} size;
struct {
unsigned int prepare;
unsigned int enable;
unsigned int disable;
unsigned int unprepare;
unsigned int reset;
unsigned int init;
} delay;
unsigned int bpc;
u32 bus_format;
u32 bus_flags;
bool power_invert;
};
struct rockchip_mcu_panel {
struct rockchip_panel base;
struct rockchip_mcu_panel_desc *desc;
struct udevice *power_supply;
struct udevice *backlight;
struct gpio_desc enable_gpio;
struct gpio_desc reset_gpio;
bool prepared;
bool enabled;
};
static inline struct rockchip_mcu_panel *to_rockchip_mcu_panel(struct rockchip_panel *panel)
{
return container_of(panel, struct rockchip_mcu_panel, base);
}
static int rockchip_rgb_connector_prepare(struct rockchip_connector *conn,
struct display_state *state)
{
struct rockchip_rgb *rgb = dev_get_priv(conn->dev);
struct crtc_state *crtc_state = &state->crtc_state;
int pipe = crtc_state->crtc_id;
int ret;
pinctrl_select_state(rgb->dev, "default");
if (rgb->funcs && rgb->funcs->prepare)
rgb->funcs->prepare(rgb, pipe);
if (rgb->phy) {
ret = rockchip_phy_set_mode(rgb->phy, PHY_MODE_VIDEO_TTL);
if (ret) {
dev_err(rgb->dev, "failed to set phy mode: %d\n", ret);
return ret;
}
rockchip_phy_power_on(rgb->phy);
}
return 0;
}
static void rockchip_rgb_connector_unprepare(struct rockchip_connector *conn,
struct display_state *state)
{
struct rockchip_rgb *rgb = dev_get_priv(conn->dev);
if (rgb->phy)
rockchip_phy_power_off(rgb->phy);
if (rgb->funcs && rgb->funcs->unprepare)
rgb->funcs->unprepare(rgb);
pinctrl_select_state(rgb->dev, "sleep");
}
static int rockchip_rgb_connector_init(struct rockchip_connector *conn, struct display_state *state)
{
struct rockchip_rgb *rgb = dev_get_priv(conn->dev);
struct connector_state *conn_state = &state->conn_state;
rgb->phy = conn->phy;
conn_state->color_space = V4L2_COLORSPACE_DEFAULT;
conn_state->disp_info = rockchip_get_disp_info(conn_state->type, rgb->id);
switch (conn_state->bus_format) {
case MEDIA_BUS_FMT_RGB666_1X18:
conn_state->output_mode = ROCKCHIP_OUT_MODE_P666;
conn_state->output_if = VOP_OUTPUT_IF_RGB;
break;
case MEDIA_BUS_FMT_RGB565_1X16:
conn_state->output_mode = ROCKCHIP_OUT_MODE_P565;
conn_state->output_if = VOP_OUTPUT_IF_RGB;
break;
case MEDIA_BUS_FMT_RGB888_3X8:
case MEDIA_BUS_FMT_BGR888_3X8:
conn_state->output_mode = ROCKCHIP_OUT_MODE_S888;
conn_state->output_if = VOP_OUTPUT_IF_RGB;
break;
case MEDIA_BUS_FMT_RGB888_DUMMY_4X8:
case MEDIA_BUS_FMT_BGR888_DUMMY_4X8:
conn_state->output_mode = ROCKCHIP_OUT_MODE_S888_DUMMY;
conn_state->output_if = VOP_OUTPUT_IF_RGB;
break;
case MEDIA_BUS_FMT_YUYV8_2X8:
case MEDIA_BUS_FMT_YVYU8_2X8:
case MEDIA_BUS_FMT_UYVY8_2X8:
case MEDIA_BUS_FMT_VYUY8_2X8:
conn_state->output_mode = ROCKCHIP_OUT_MODE_BT656;
conn_state->output_if = VOP_OUTPUT_IF_BT656;
break;
case MEDIA_BUS_FMT_YUYV8_1X16:
case MEDIA_BUS_FMT_YVYU8_1X16:
case MEDIA_BUS_FMT_UYVY8_1X16:
case MEDIA_BUS_FMT_VYUY8_1X16:
conn_state->output_mode = ROCKCHIP_OUT_MODE_BT1120;
conn_state->output_if = VOP_OUTPUT_IF_BT1120;
break;
case MEDIA_BUS_FMT_RGB888_1X24:
case MEDIA_BUS_FMT_RGB666_1X24_CPADHI:
default:
conn_state->output_mode = ROCKCHIP_OUT_MODE_P888;
conn_state->output_if = VOP_OUTPUT_IF_RGB;
break;
}
return 0;
}
static const struct rockchip_connector_funcs rockchip_rgb_connector_funcs = {
.init = rockchip_rgb_connector_init,
.prepare = rockchip_rgb_connector_prepare,
.unprepare = rockchip_rgb_connector_unprepare,
};
static int rockchip_mcu_panel_send_cmds(struct display_state *state,
struct mcu_cmd_seq *cmds)
{
int i;
if (!cmds)
return -EINVAL;
display_send_mcu_cmd(state, MCU_SETBYPASS, 1);
for (i = 0; i < cmds->cmd_cnt; i++) {
struct mcu_cmd_desc *desc = &cmds->cmds[i];
int value = 0;
value = desc->payload[0];
display_send_mcu_cmd(state, desc->header.data_type, value);
if (desc->header.delay)
mdelay(desc->header.delay);
}
display_send_mcu_cmd(state, MCU_SETBYPASS, 0);
return 0;
}
static void rockchip_mcu_panel_prepare(struct rockchip_panel *panel)
{
struct rockchip_mcu_panel *mcu_panel = to_rockchip_mcu_panel(panel);
int ret;
if (mcu_panel->prepared)
return;
if (dm_gpio_is_valid(&mcu_panel->enable_gpio))
dm_gpio_set_value(&mcu_panel->enable_gpio, 1);
if (mcu_panel->desc->delay.prepare)
mdelay(mcu_panel->desc->delay.prepare);
if (dm_gpio_is_valid(&mcu_panel->reset_gpio))
dm_gpio_set_value(&mcu_panel->reset_gpio, 1);
if (mcu_panel->desc->delay.reset)
mdelay(mcu_panel->desc->delay.reset);
if (dm_gpio_is_valid(&mcu_panel->reset_gpio))
dm_gpio_set_value(&mcu_panel->reset_gpio, 0);
if (mcu_panel->desc->delay.init)
mdelay(mcu_panel->desc->delay.init);
if (mcu_panel->desc->init_seq) {
ret = rockchip_mcu_panel_send_cmds(panel->state, mcu_panel->desc->init_seq);
if (ret)
printf("failed to send mcu panel init cmds: %d\n", ret);
}
mcu_panel->prepared = true;
}
static void rockchip_mcu_panel_unprepare(struct rockchip_panel *panel)
{
struct rockchip_mcu_panel *mcu_panel = to_rockchip_mcu_panel(panel);
int ret;
if (!mcu_panel->prepared)
return;
if (mcu_panel->desc->exit_seq) {
ret = rockchip_mcu_panel_send_cmds(panel->state, mcu_panel->desc->exit_seq);
if (ret)
printf("failed to send mcu panel exit cmds: %d\n", ret);
}
if (dm_gpio_is_valid(&mcu_panel->reset_gpio))
dm_gpio_set_value(&mcu_panel->reset_gpio, 1);
if (dm_gpio_is_valid(&mcu_panel->enable_gpio))
dm_gpio_set_value(&mcu_panel->enable_gpio, 0);
if (mcu_panel->desc->delay.unprepare)
mdelay(mcu_panel->desc->delay.unprepare);
mcu_panel->prepared = false;
}
static void rockchip_mcu_panel_enable(struct rockchip_panel *panel)
{
struct rockchip_mcu_panel *mcu_panel = to_rockchip_mcu_panel(panel);
if (mcu_panel->enabled)
return;
if (mcu_panel->desc->delay.enable)
mdelay(mcu_panel->desc->delay.enable);
if (mcu_panel->backlight)
backlight_enable(mcu_panel->backlight);
mcu_panel->enabled = true;
}
static void rockchip_mcu_panel_disable(struct rockchip_panel *panel)
{
struct rockchip_mcu_panel *mcu_panel = to_rockchip_mcu_panel(panel);
if (!mcu_panel->enabled)
return;
if (mcu_panel->backlight)
backlight_disable(mcu_panel->backlight);
if (mcu_panel->desc->delay.disable)
mdelay(mcu_panel->desc->delay.disable);
mcu_panel->enabled = false;
}
static const struct rockchip_panel_funcs rockchip_mcu_panel_funcs = {
.prepare = rockchip_mcu_panel_prepare,
.unprepare = rockchip_mcu_panel_unprepare,
.enable = rockchip_mcu_panel_enable,
.disable = rockchip_mcu_panel_disable,
};
static int rockchip_mcu_panel_parse_cmds(const u8 *data, int length,
struct mcu_cmd_seq *pcmds)
{
int len;
const u8 *buf;
const struct mcu_cmd_header *header;
int i, cnt = 0;
/* scan commands */
cnt = 0;
buf = data;
len = length;
while (len > sizeof(*header)) {
header = (const struct mcu_cmd_header *)buf;
buf += sizeof(*header) + header->payload_length;
len -= sizeof(*header) + header->payload_length;
cnt++;
}
pcmds->cmds = calloc(cnt, sizeof(struct mcu_cmd_desc));
if (!pcmds->cmds)
return -ENOMEM;
pcmds->cmd_cnt = cnt;
buf = data;
len = length;
for (i = 0; i < cnt; i++) {
struct mcu_cmd_desc *desc = &pcmds->cmds[i];
header = (const struct mcu_cmd_header *)buf;
length -= sizeof(*header);
buf += sizeof(*header);
desc->header.data_type = header->data_type;
desc->header.delay = header->delay;
desc->header.payload_length = header->payload_length;
desc->payload = buf;
buf += header->payload_length;
length -= header->payload_length;
}
return 0;
}
static int rockchip_mcu_panel_init(struct rockchip_mcu_panel *mcu_panel, ofnode mcu_panel_node)
{
const void *data;
int len;
int ret;
ret = gpio_request_by_name_nodev(mcu_panel_node, "enable-gpios", 0,
&mcu_panel->enable_gpio, GPIOD_IS_OUT);
if (ret && ret != -ENOENT) {
printf("%s: Cannot get mcu panel enable GPIO: %d\n", __func__, ret);
return ret;
}
ret = gpio_request_by_name_nodev(mcu_panel_node, "reset-gpios", 0,
&mcu_panel->reset_gpio, GPIOD_IS_OUT);
if (ret && ret != -ENOENT) {
printf("%s: Cannot get mcu panel reset GPIO: %d\n", __func__, ret);
return ret;
}
mcu_panel->desc = malloc(sizeof(struct rockchip_mcu_panel_desc));
if (!mcu_panel->desc)
return -ENOMEM;
mcu_panel->desc->power_invert = ofnode_read_bool(mcu_panel_node, "power-invert");
mcu_panel->desc->delay.prepare = ofnode_read_u32_default(mcu_panel_node, "prepare-delay-ms", 0);
mcu_panel->desc->delay.unprepare = ofnode_read_u32_default(mcu_panel_node, "unprepare-delay-ms", 0);
mcu_panel->desc->delay.enable = ofnode_read_u32_default(mcu_panel_node, "enable-delay-ms", 0);
mcu_panel->desc->delay.disable = ofnode_read_u32_default(mcu_panel_node, "disable-delay-ms", 0);
mcu_panel->desc->delay.init = ofnode_read_u32_default(mcu_panel_node, "init-delay-ms", 0);
mcu_panel->desc->delay.reset = ofnode_read_u32_default(mcu_panel_node, "reset-delay-ms", 0);
mcu_panel->desc->bus_format = ofnode_read_u32_default(mcu_panel_node, "bus-format",
MEDIA_BUS_FMT_RBG888_1X24);
mcu_panel->desc->bpc = ofnode_read_u32_default(mcu_panel_node, "bpc", 8);
data = ofnode_get_property(mcu_panel_node, "panel-init-sequence", &len);
if (data) {
mcu_panel->desc->init_seq = calloc(1, sizeof(*mcu_panel->desc->init_seq));
if (!mcu_panel->desc->init_seq)
return -ENOMEM;
ret = rockchip_mcu_panel_parse_cmds(data, len, mcu_panel->desc->init_seq);
if (ret) {
printf("failed to parse panel init sequence\n");
goto free_on_cmds;
}
}
data = ofnode_get_property(mcu_panel_node, "panel-exit-sequence", &len);
if (data) {
mcu_panel->desc->exit_seq = calloc(1, sizeof(*mcu_panel->desc->exit_seq));
if (!mcu_panel->desc->exit_seq) {
ret = -ENOMEM;
goto free_on_cmds;
}
ret = rockchip_mcu_panel_parse_cmds(data, len, mcu_panel->desc->exit_seq);
if (ret) {
printf("failed to parse panel exit sequence\n");
goto free_cmds;
}
}
return 0;
free_cmds:
free(mcu_panel->desc->exit_seq);
free_on_cmds:
free(mcu_panel->desc->init_seq);
return ret;
}
static int rockchip_rgb_probe(struct udevice *dev)
{
struct rockchip_rgb *rgb = dev_get_priv(dev);
ofnode mcu_panel_node;
int phandle;
int ret;
rgb->dev = dev;
rgb->funcs = (const struct rockchip_rgb_funcs *)dev_get_driver_data(dev);
rgb->grf = syscon_get_regmap(dev_get_parent(dev));
rgb->data_sync_bypass = dev_read_bool(dev, "rockchip,data-sync-bypass");
rgb->id = of_alias_get_id(ofnode_to_np(dev->node), "rgb");
if (rgb->id < 0)
rgb->id = 0;
mcu_panel_node = dev_read_subnode(dev, "mcu-panel");
if (ofnode_valid(mcu_panel_node) && ofnode_is_available(mcu_panel_node)) {
struct rockchip_mcu_panel *mcu_panel;
mcu_panel = malloc(sizeof(struct rockchip_mcu_panel));
if (!mcu_panel) {
printf("failed to alloc mcu_panel data\n");
return -ENOMEM;
}
ret = rockchip_mcu_panel_init(mcu_panel, mcu_panel_node);
if (ret < 0) {
printf("failed to init mcu_panel: %d\n", ret);
return ret;
}
phandle = ofnode_read_u32_default(mcu_panel_node, "backlight", -1);
if (phandle < 0) {
printf("failed to find backlight phandle\n");
return -EINVAL;
}
ret = uclass_get_device_by_phandle_id(UCLASS_PANEL_BACKLIGHT, phandle,
&mcu_panel->backlight);
if (ret && ret != -ENOENT) {
printf("%s: failed to get backlight device: %d\n", __func__, ret);
return ret;
}
mcu_panel->base.dev = dev;
mcu_panel->base.bus_format = mcu_panel->desc->bus_format;
mcu_panel->base.bpc = mcu_panel->desc->bpc;
mcu_panel->base.funcs = &rockchip_mcu_panel_funcs;
mcu_panel->enabled = false;
mcu_panel->prepared = false;
rgb->connector.panel = &mcu_panel->base;
}
rockchip_connector_bind(&rgb->connector, dev, rgb->id, &rockchip_rgb_connector_funcs,
NULL, DRM_MODE_CONNECTOR_LVDS);
return 0;
}
static void rv1106_rgb_prepare(struct rockchip_rgb *rgb, int pipe)
{
regmap_write(rgb->grf, RV1106_VENC_GRF_VOP_IO_WRAPPER,
RV1106_IO_BYPASS_SEL(rgb->data_sync_bypass ? 0x3 : 0x0));
regmap_write(rgb->grf, RV1106_VOGRF_VOP_PIPE_BYPASS,
RV1106_VOP_PIPE_BYPASS(rgb->data_sync_bypass ? 0x3 : 0x0));
}
static const struct rockchip_rgb_funcs rv1106_rgb_funcs = {
.prepare = rv1106_rgb_prepare,
};
static void rv1126_rgb_prepare(struct rockchip_rgb *rgb, int pipe)
{
regmap_write(rgb->grf, RV1126_GRF_IOFUNC_CON3,
RV1126_LCDC_IO_BYPASS(rgb->data_sync_bypass));
}
static const struct rockchip_rgb_funcs rv1126_rgb_funcs = {
.prepare = rv1126_rgb_prepare,
};
static void px30_rgb_prepare(struct rockchip_rgb *rgb, int pipe)
{
regmap_write(rgb->grf, PX30_GRF_PD_VO_CON1, PX30_RGB_VOP_SEL(pipe) |
PX30_RGB_DATA_SYNC_BYPASS(rgb->data_sync_bypass));
}
static const struct rockchip_rgb_funcs px30_rgb_funcs = {
.prepare = px30_rgb_prepare,
};
static void rk1808_rgb_prepare(struct rockchip_rgb *rgb, int pipe)
{
regmap_write(rgb->grf, RK1808_GRF_PD_VO_CON1,
RK1808_RGB_DATA_SYNC_BYPASS(rgb->data_sync_bypass));
}
static const struct rockchip_rgb_funcs rk1808_rgb_funcs = {
.prepare = rk1808_rgb_prepare,
};
static void rk3288_rgb_prepare(struct rockchip_rgb *rgb, int pipe)
{
regmap_write(rgb->grf, RK3288_GRF_SOC_CON6, RK3288_LVDS_LCDC_SEL(pipe));
regmap_write(rgb->grf, RK3288_GRF_SOC_CON7,
RK3288_LVDS_PWRDWN(0) | RK3288_LVDS_CON_ENABLE_2(1) |
RK3288_LVDS_CON_ENABLE_1(1) | RK3288_LVDS_CON_CLKINV(0) |
RK3288_LVDS_CON_TTL_EN(1));
}
static void rk3288_rgb_unprepare(struct rockchip_rgb *rgb)
{
regmap_write(rgb->grf, RK3288_GRF_SOC_CON7,
RK3288_LVDS_PWRDWN(1) | RK3288_LVDS_CON_ENABLE_2(0) |
RK3288_LVDS_CON_ENABLE_1(0) | RK3288_LVDS_CON_TTL_EN(0));
}
static const struct rockchip_rgb_funcs rk3288_rgb_funcs = {
.prepare = rk3288_rgb_prepare,
.unprepare = rk3288_rgb_unprepare,
};
static void rk3368_rgb_prepare(struct rockchip_rgb *rgb, int pipe)
{
regmap_write(rgb->grf, RK3368_GRF_SOC_CON15, RK3368_FORCE_JETAG(0));
}
static const struct rockchip_rgb_funcs rk3368_rgb_funcs = {
.prepare = rk3368_rgb_prepare,
};
static void rk3562_rgb_prepare(struct rockchip_rgb *rgb, int pipe)
{
regmap_write(rgb->grf, RK3562_GRF_IOC_VO_IO_CON,
RK3562_RGB_DATA_BYPASS(rgb->data_sync_bypass));
}
static const struct rockchip_rgb_funcs rk3562_rgb_funcs = {
.prepare = rk3562_rgb_prepare,
};
static void rk3568_rgb_prepare(struct rockchip_rgb *rgb, int pipe)
{
regmap_write(rgb->grf, RK3568_GRF_VO_CON1, RK3568_RGB_DATA_BYPASS(rgb->data_sync_bypass));
}
static const struct rockchip_rgb_funcs rk3568_rgb_funcs = {
.prepare = rk3568_rgb_prepare,
};
static const struct udevice_id rockchip_rgb_ids[] = {
{
.compatible = "rockchip,px30-rgb",
.data = (ulong)&px30_rgb_funcs,
},
{
.compatible = "rockchip,rk1808-rgb",
.data = (ulong)&rk1808_rgb_funcs,
},
{
.compatible = "rockchip,rk3066-rgb",
},
{
.compatible = "rockchip,rk3128-rgb",
},
{
.compatible = "rockchip,rk3288-rgb",
.data = (ulong)&rk3288_rgb_funcs,
},
{
.compatible = "rockchip,rk3308-rgb",
},
{
.compatible = "rockchip,rk3368-rgb",
.data = (ulong)&rk3368_rgb_funcs,
},
{
.compatible = "rockchip,rk3562-rgb",
.data = (ulong)&rk3562_rgb_funcs,
},
{
.compatible = "rockchip,rk3568-rgb",
.data = (ulong)&rk3568_rgb_funcs,
},
{
.compatible = "rockchip,rk3588-rgb",
},
{
.compatible = "rockchip,rv1106-rgb",
.data = (ulong)&rv1106_rgb_funcs,
},
{
.compatible = "rockchip,rv1108-rgb",
},
{
.compatible = "rockchip,rv1126-rgb",
.data = (ulong)&rv1126_rgb_funcs,
},
{}
};
U_BOOT_DRIVER(rockchip_rgb) = {
.name = "rockchip_rgb",
.id = UCLASS_DISPLAY,
.of_match = rockchip_rgb_ids,
.probe = rockchip_rgb_probe,
.priv_auto_alloc_size = sizeof(struct rockchip_rgb),
};