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-rw-r--r--drivers/video/Kconfig2
-rw-r--r--drivers/video/bcm2835.c4
-rw-r--r--drivers/video/display-uclass.c15
-rw-r--r--drivers/video/dw_hdmi.c13
-rw-r--r--drivers/video/fsl_dcu_fb.c213
-rw-r--r--drivers/video/meson/meson_dw_hdmi.c10
-rw-r--r--drivers/video/mxsfb.c74
-rw-r--r--drivers/video/rockchip/rk_hdmi.c3
-rw-r--r--drivers/video/simple_panel.c1
-rw-r--r--drivers/video/sunxi/sunxi_dw_hdmi.c3
10 files changed, 260 insertions, 78 deletions
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index c3781b160d..261fa98517 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -484,7 +484,7 @@ config VIDEO_IVYBRIDGE_IGD
config VIDEO_FSL_DCU_FB
bool "Enable Freescale Display Control Unit"
- depends on VIDEO
+ depends on VIDEO || DM_VIDEO
help
This enables support for Freescale Display Control Unit (DCU4)
module found on Freescale Vybrid and QorIQ family of SoCs.
diff --git a/drivers/video/bcm2835.c b/drivers/video/bcm2835.c
index bc41090aed..1d2eda084c 100644
--- a/drivers/video/bcm2835.c
+++ b/drivers/video/bcm2835.c
@@ -19,13 +19,15 @@ static int bcm2835_video_probe(struct udevice *dev)
debug("bcm2835: Query resolution...\n");
ret = bcm2835_get_video_size(&w, &h);
- if (ret)
+ if (ret || w == 0 || h == 0)
return -EIO;
debug("bcm2835: Setting up display for %d x %d\n", w, h);
ret = bcm2835_set_video_params(&w, &h, 32, BCM2835_MBOX_PIXEL_ORDER_RGB,
BCM2835_MBOX_ALPHA_MODE_IGNORED,
&fb_base, &fb_size, &pitch);
+ if (ret)
+ return -EIO;
debug("bcm2835: Final resolution is %d x %d\n", w, h);
diff --git a/drivers/video/display-uclass.c b/drivers/video/display-uclass.c
index 99ef5e76f5..1a29ce5d85 100644
--- a/drivers/video/display-uclass.c
+++ b/drivers/video/display-uclass.c
@@ -37,6 +37,17 @@ int display_enable(struct udevice *dev, int panel_bpp,
return 0;
}
+static bool display_mode_valid(void *priv, const struct display_timing *timing)
+{
+ struct udevice *dev = priv;
+ struct dm_display_ops *ops = display_get_ops(dev);
+
+ if (ops && ops->mode_valid)
+ return ops->mode_valid(dev, timing);
+
+ return true;
+}
+
int display_read_timing(struct udevice *dev, struct display_timing *timing)
{
struct dm_display_ops *ops = display_get_ops(dev);
@@ -53,7 +64,9 @@ int display_read_timing(struct udevice *dev, struct display_timing *timing)
if (ret < 0)
return ret;
- return edid_get_timing(buf, ret, timing, &panel_bits_per_colour);
+ return edid_get_timing_validate(buf, ret, timing,
+ &panel_bits_per_colour,
+ display_mode_valid, dev);
}
bool display_in_use(struct udevice *dev)
diff --git a/drivers/video/dw_hdmi.c b/drivers/video/dw_hdmi.c
index 463436edf3..bf74d6adf2 100644
--- a/drivers/video/dw_hdmi.c
+++ b/drivers/video/dw_hdmi.c
@@ -8,6 +8,7 @@
#include <common.h>
#include <fdtdec.h>
#include <asm/io.h>
+#include <i2c.h>
#include <media_bus_format.h>
#include "dw_hdmi.h"
@@ -812,6 +813,18 @@ static int hdmi_read_edid(struct dw_hdmi *hdmi, int block, u8 *buff)
u32 trytime = 5;
u32 n;
+ if (CONFIG_IS_ENABLED(DM_I2C) && hdmi->ddc_bus) {
+ struct udevice *chip;
+
+ edid_read_err = i2c_get_chip(hdmi->ddc_bus,
+ HDMI_I2CM_SLAVE_DDC_ADDR,
+ 1, &chip);
+ if (edid_read_err)
+ return edid_read_err;
+
+ return dm_i2c_read(chip, shift, buff, HDMI_EDID_BLOCK_SIZE);
+ }
+
/* set ddc i2c clk which devided from ddc_clk to 100khz */
hdmi_write(hdmi, hdmi->i2c_clk_high, HDMI_I2CM_SS_SCL_HCNT_0_ADDR);
hdmi_write(hdmi, hdmi->i2c_clk_low, HDMI_I2CM_SS_SCL_LCNT_0_ADDR);
diff --git a/drivers/video/fsl_dcu_fb.c b/drivers/video/fsl_dcu_fb.c
index 9f6e7f83b0..add64b85b5 100644
--- a/drivers/video/fsl_dcu_fb.c
+++ b/drivers/video/fsl_dcu_fb.c
@@ -1,16 +1,19 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2014 Freescale Semiconductor, Inc.
+ * Copyright 2019 Toradex AG
*
* FSL DCU Framebuffer driver
*/
#include <asm/io.h>
#include <common.h>
+#include <dm.h>
#include <fdt_support.h>
#include <fsl_dcu_fb.h>
#include <linux/fb.h>
#include <malloc.h>
+#include <video.h>
#include <video_fb.h>
#include "videomodes.h"
@@ -218,8 +221,6 @@ struct dcu_reg {
u32 ctrldescl[DCU_LAYER_MAX_NUM][16];
};
-static struct fb_info info;
-
static void reset_total_layers(void)
{
struct dcu_reg *regs = (struct dcu_reg *)CONFIG_SYS_DCU_ADDR;
@@ -240,20 +241,22 @@ static void reset_total_layers(void)
}
}
-static int layer_ctrldesc_init(int index, u32 pixel_format)
+static int layer_ctrldesc_init(struct fb_info fbinfo,
+ int index, u32 pixel_format)
{
struct dcu_reg *regs = (struct dcu_reg *)CONFIG_SYS_DCU_ADDR;
unsigned int bpp = BPP_24_RGB888;
dcu_write32(&regs->ctrldescl[index][0],
- DCU_CTRLDESCLN_1_HEIGHT(info.var.yres) |
- DCU_CTRLDESCLN_1_WIDTH(info.var.xres));
+ DCU_CTRLDESCLN_1_HEIGHT(fbinfo.var.yres) |
+ DCU_CTRLDESCLN_1_WIDTH(fbinfo.var.xres));
dcu_write32(&regs->ctrldescl[index][1],
DCU_CTRLDESCLN_2_POSY(0) |
DCU_CTRLDESCLN_2_POSX(0));
- dcu_write32(&regs->ctrldescl[index][2], (unsigned int)info.screen_base);
+ dcu_write32(&regs->ctrldescl[index][2],
+ (unsigned int)fbinfo.screen_base);
switch (pixel_format) {
case 16:
@@ -294,42 +297,46 @@ static int layer_ctrldesc_init(int index, u32 pixel_format)
return 0;
}
-int fsl_dcu_init(unsigned int xres, unsigned int yres,
- unsigned int pixel_format)
+int fsl_dcu_init(struct fb_info *fbinfo, unsigned int xres,
+ unsigned int yres, unsigned int pixel_format)
{
struct dcu_reg *regs = (struct dcu_reg *)CONFIG_SYS_DCU_ADDR;
unsigned int div, mode;
+/*
+ * When DM_VIDEO is enabled reservation of framebuffer is done
+ * in advance during bind() call.
+ */
+#if !CONFIG_IS_ENABLED(DM_VIDEO)
+ fbinfo->screen_size = fbinfo->var.xres * fbinfo->var.yres *
+ (fbinfo->var.bits_per_pixel / 8);
- info.screen_size =
- info.var.xres * info.var.yres * (info.var.bits_per_pixel / 8);
-
- if (info.screen_size > CONFIG_VIDEO_FSL_DCU_MAX_FB_SIZE_MB) {
- info.screen_size = 0;
+ if (fbinfo->screen_size > CONFIG_VIDEO_FSL_DCU_MAX_FB_SIZE_MB) {
+ fbinfo->screen_size = 0;
return -ENOMEM;
}
-
/* Reserve framebuffer at the end of memory */
gd->fb_base = gd->bd->bi_dram[0].start +
- gd->bd->bi_dram[0].size - info.screen_size;
- info.screen_base = (char *)gd->fb_base;
+ gd->bd->bi_dram[0].size - fbinfo->screen_size;
+ fbinfo->screen_base = (char *)gd->fb_base;
- memset(info.screen_base, 0, info.screen_size);
+ memset(fbinfo->screen_base, 0, fbinfo->screen_size);
+#endif
reset_total_layers();
dcu_write32(&regs->disp_size,
- DCU_DISP_SIZE_DELTA_Y(info.var.yres) |
- DCU_DISP_SIZE_DELTA_X(info.var.xres / 16));
+ DCU_DISP_SIZE_DELTA_Y(fbinfo->var.yres) |
+ DCU_DISP_SIZE_DELTA_X(fbinfo->var.xres / 16));
dcu_write32(&regs->hsyn_para,
- DCU_HSYN_PARA_BP(info.var.left_margin) |
- DCU_HSYN_PARA_PW(info.var.hsync_len) |
- DCU_HSYN_PARA_FP(info.var.right_margin));
+ DCU_HSYN_PARA_BP(fbinfo->var.left_margin) |
+ DCU_HSYN_PARA_PW(fbinfo->var.hsync_len) |
+ DCU_HSYN_PARA_FP(fbinfo->var.right_margin));
dcu_write32(&regs->vsyn_para,
- DCU_VSYN_PARA_BP(info.var.upper_margin) |
- DCU_VSYN_PARA_PW(info.var.vsync_len) |
- DCU_VSYN_PARA_FP(info.var.lower_margin));
+ DCU_VSYN_PARA_BP(fbinfo->var.upper_margin) |
+ DCU_VSYN_PARA_PW(fbinfo->var.vsync_len) |
+ DCU_VSYN_PARA_FP(fbinfo->var.lower_margin));
dcu_write32(&regs->synpol,
DCU_SYN_POL_INV_PXCK_FALL |
@@ -352,9 +359,9 @@ int fsl_dcu_init(unsigned int xres, unsigned int yres,
mode = dcu_read32(&regs->mode);
dcu_write32(&regs->mode, mode | DCU_MODE_NORMAL);
- layer_ctrldesc_init(0, pixel_format);
+ layer_ctrldesc_init(*fbinfo, 0, pixel_format);
- div = dcu_set_pixel_clock(info.var.pixclock);
+ div = dcu_set_pixel_clock(fbinfo->var.pixclock);
dcu_write32(&regs->div_ratio, (div - 1));
dcu_write32(&regs->update_mode, DCU_UPDATE_MODE_READREG);
@@ -367,24 +374,26 @@ ulong board_get_usable_ram_top(ulong total_size)
return gd->ram_top - CONFIG_VIDEO_FSL_DCU_MAX_FB_SIZE_MB;
}
-void *video_hw_init(void)
+int fsl_probe_common(struct fb_info *fbinfo, unsigned int *win_x,
+ unsigned int *win_y)
{
- static GraphicDevice ctfb;
const char *options;
unsigned int depth = 0, freq = 0;
+
struct fb_videomode *fsl_dcu_mode_db = &fsl_dcu_mode_480_272;
- if (!video_get_video_mode(&ctfb.winSizeX, &ctfb.winSizeY, &depth, &freq,
+ if (!video_get_video_mode(win_x, win_y, &depth, &freq,
&options))
- return NULL;
+ return -EINVAL;
/* Find the monitor port, which is a required option */
if (!options)
- return NULL;
+ return -EINVAL;
+
if (strncmp(options, "monitor=", 8) != 0)
- return NULL;
+ return -EINVAL;
- switch (RESOLUTION(ctfb.winSizeX, ctfb.winSizeY)) {
+ switch (RESOLUTION(*win_x, *win_y)) {
case RESOLUTION(480, 272):
fsl_dcu_mode_db = &fsl_dcu_mode_480_272;
break;
@@ -402,39 +411,31 @@ void *video_hw_init(void)
break;
default:
printf("unsupported resolution %ux%u\n",
- ctfb.winSizeX, ctfb.winSizeY);
+ *win_x, *win_y);
}
- info.var.xres = fsl_dcu_mode_db->xres;
- info.var.yres = fsl_dcu_mode_db->yres;
- info.var.bits_per_pixel = 32;
- info.var.pixclock = fsl_dcu_mode_db->pixclock;
- info.var.left_margin = fsl_dcu_mode_db->left_margin;
- info.var.right_margin = fsl_dcu_mode_db->right_margin;
- info.var.upper_margin = fsl_dcu_mode_db->upper_margin;
- info.var.lower_margin = fsl_dcu_mode_db->lower_margin;
- info.var.hsync_len = fsl_dcu_mode_db->hsync_len;
- info.var.vsync_len = fsl_dcu_mode_db->vsync_len;
- info.var.sync = fsl_dcu_mode_db->sync;
- info.var.vmode = fsl_dcu_mode_db->vmode;
- info.fix.line_length = info.var.xres * info.var.bits_per_pixel / 8;
-
- if (platform_dcu_init(ctfb.winSizeX, ctfb.winSizeY,
- options + 8, fsl_dcu_mode_db) < 0)
- return NULL;
-
- ctfb.frameAdrs = (unsigned int)info.screen_base;
- ctfb.plnSizeX = ctfb.winSizeX;
- ctfb.plnSizeY = ctfb.winSizeY;
-
- ctfb.gdfBytesPP = 4;
- ctfb.gdfIndex = GDF_32BIT_X888RGB;
-
- ctfb.memSize = info.screen_size;
-
- return &ctfb;
+ fbinfo->var.xres = fsl_dcu_mode_db->xres;
+ fbinfo->var.yres = fsl_dcu_mode_db->yres;
+ fbinfo->var.bits_per_pixel = 32;
+ fbinfo->var.pixclock = fsl_dcu_mode_db->pixclock;
+ fbinfo->var.left_margin = fsl_dcu_mode_db->left_margin;
+ fbinfo->var.right_margin = fsl_dcu_mode_db->right_margin;
+ fbinfo->var.upper_margin = fsl_dcu_mode_db->upper_margin;
+ fbinfo->var.lower_margin = fsl_dcu_mode_db->lower_margin;
+ fbinfo->var.hsync_len = fsl_dcu_mode_db->hsync_len;
+ fbinfo->var.vsync_len = fsl_dcu_mode_db->vsync_len;
+ fbinfo->var.sync = fsl_dcu_mode_db->sync;
+ fbinfo->var.vmode = fsl_dcu_mode_db->vmode;
+ fbinfo->fix.line_length = fbinfo->var.xres *
+ fbinfo->var.bits_per_pixel / 8;
+
+ return platform_dcu_init(fbinfo, *win_x, *win_y,
+ options + 8, fsl_dcu_mode_db);
}
+#ifndef CONFIG_DM_VIDEO
+static struct fb_info info;
+
#if defined(CONFIG_OF_BOARD_SETUP)
int fsl_dcu_fixedfb_setup(void *blob)
{
@@ -457,3 +458,89 @@ int fsl_dcu_fixedfb_setup(void *blob)
return 0;
}
#endif
+
+void *video_hw_init(void)
+{
+ static GraphicDevice ctfb;
+
+ if (fsl_probe_common(&info, &ctfb.winSizeX, &ctfb.winSizeY) < 0)
+ return NULL;
+
+ ctfb.frameAdrs = (unsigned int)info.screen_base;
+ ctfb.plnSizeX = ctfb.winSizeX;
+ ctfb.plnSizeY = ctfb.winSizeY;
+
+ ctfb.gdfBytesPP = 4;
+ ctfb.gdfIndex = GDF_32BIT_X888RGB;
+
+ ctfb.memSize = info.screen_size;
+
+ return &ctfb;
+}
+
+#else /* ifndef CONFIG_DM_VIDEO */
+
+static int fsl_dcu_video_probe(struct udevice *dev)
+{
+ struct video_uc_platdata *plat = dev_get_uclass_platdata(dev);
+ struct video_priv *uc_priv = dev_get_uclass_priv(dev);
+ struct fb_info fbinfo = { 0 };
+ unsigned int win_x;
+ unsigned int win_y;
+ u32 fb_start, fb_end;
+ int ret = 0;
+
+ fb_start = plat->base & ~(MMU_SECTION_SIZE - 1);
+ fb_end = plat->base + plat->size;
+ fb_end = ALIGN(fb_end, 1 << MMU_SECTION_SHIFT);
+
+ fbinfo.screen_base = (char *)fb_start;
+ fbinfo.screen_size = plat->size;
+
+ ret = fsl_probe_common(&fbinfo, &win_x, &win_y);
+ if (ret < 0)
+ return ret;
+
+ uc_priv->bpix = VIDEO_BPP32;
+ uc_priv->xsize = win_x;
+ uc_priv->ysize = win_y;
+
+ /* Enable dcache for the frame buffer */
+ mmu_set_region_dcache_behaviour(fb_start, fb_end - fb_start,
+ DCACHE_WRITEBACK);
+ video_set_flush_dcache(dev, true);
+ return ret;
+}
+
+static int fsl_dcu_video_bind(struct udevice *dev)
+{
+ struct video_uc_platdata *plat = dev_get_uclass_platdata(dev);
+ unsigned int win_x;
+ unsigned int win_y;
+ unsigned int depth = 0, freq = 0;
+ const char *options;
+ int ret = 0;
+
+ ret = video_get_video_mode(&win_x, &win_y, &depth, &freq, &options);
+ if (ret < 0)
+ return ret;
+
+ plat->size = win_x * win_y * 32;
+
+ return 0;
+}
+
+static const struct udevice_id fsl_dcu_video_ids[] = {
+ { .compatible = "fsl,vf610-dcu" },
+ { /* sentinel */ }
+};
+
+U_BOOT_DRIVER(fsl_dcu_video) = {
+ .name = "fsl_dcu_video",
+ .id = UCLASS_VIDEO,
+ .of_match = fsl_dcu_video_ids,
+ .bind = fsl_dcu_video_bind,
+ .probe = fsl_dcu_video_probe,
+ .flags = DM_FLAG_PRE_RELOC,
+};
+#endif /* ifndef CONFIG_DM_VIDEO */
diff --git a/drivers/video/meson/meson_dw_hdmi.c b/drivers/video/meson/meson_dw_hdmi.c
index 483c93f6b6..9831d978fc 100644
--- a/drivers/video/meson/meson_dw_hdmi.c
+++ b/drivers/video/meson/meson_dw_hdmi.c
@@ -375,6 +375,9 @@ static int meson_dw_hdmi_probe(struct udevice *dev)
}
#endif
+ uclass_get_device_by_phandle(UCLASS_I2C, dev, "ddc-i2c-bus",
+ &priv->hdmi.ddc_bus);
+
ret = reset_get_bulk(dev, &resets);
if (ret)
return ret;
@@ -426,9 +429,16 @@ static int meson_dw_hdmi_probe(struct udevice *dev)
return ret;
}
+static bool meson_dw_hdmi_mode_valid(struct udevice *dev,
+ const struct display_timing *timing)
+{
+ return meson_venc_hdmi_supported_mode(timing);
+}
+
static const struct dm_display_ops meson_dw_hdmi_ops = {
.read_edid = meson_dw_hdmi_read_edid,
.enable = meson_dw_hdmi_enable,
+ .mode_valid = meson_dw_hdmi_mode_valid,
};
static const struct udevice_id meson_dw_hdmi_ids[] = {
diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c
index f02ba20138..6c9a7c05e8 100644
--- a/drivers/video/mxsfb.c
+++ b/drivers/video/mxsfb.c
@@ -271,6 +271,42 @@ dealloc_fb:
}
#else /* ifndef CONFIG_DM_VIDEO */
+static int mxs_of_get_timings(struct udevice *dev,
+ struct display_timing *timings,
+ u32 *bpp)
+{
+ int ret = 0;
+ u32 display_phandle;
+ ofnode display_node;
+
+ ret = ofnode_read_u32(dev_ofnode(dev), "display", &display_phandle);
+ if (ret) {
+ dev_err(dev, "required display property isn't provided\n");
+ return -EINVAL;
+ }
+
+ display_node = ofnode_get_by_phandle(display_phandle);
+ if (!ofnode_valid(display_node)) {
+ dev_err(dev, "failed to find display subnode\n");
+ return -EINVAL;
+ }
+
+ ret = ofnode_read_u32(display_node, "bits-per-pixel", bpp);
+ if (ret) {
+ dev_err(dev,
+ "required bits-per-pixel property isn't provided\n");
+ return -EINVAL;
+ }
+
+ ret = ofnode_decode_display_timing(display_node, 0, timings);
+ if (ret) {
+ dev_err(dev, "failed to get any display timings\n");
+ return -EINVAL;
+ }
+
+ return ret;
+}
+
static int mxs_video_probe(struct udevice *dev)
{
struct video_uc_platdata *plat = dev_get_uclass_platdata(dev);
@@ -278,18 +314,16 @@ static int mxs_video_probe(struct udevice *dev)
struct ctfb_res_modes mode;
struct display_timing timings;
- int bpp = -1;
+ u32 bpp = 0;
u32 fb_start, fb_end;
int ret;
debug("%s() plat: base 0x%lx, size 0x%x\n",
__func__, plat->base, plat->size);
- ret = ofnode_decode_display_timing(dev_ofnode(dev), 0, &timings);
- if (ret) {
- dev_err(dev, "failed to get any display timings\n");
- return -EINVAL;
- }
+ ret = mxs_of_get_timings(dev, &timings, &bpp);
+ if (ret)
+ return ret;
mode.xres = timings.hactive.typ;
mode.yres = timings.vactive.typ;
@@ -301,13 +335,12 @@ static int mxs_video_probe(struct udevice *dev)
mode.vsync_len = timings.vsync_len.typ;
mode.pixclock = HZ2PS(timings.pixelclock.typ);
- bpp = BITS_PP;
-
ret = mxs_probe_common(&mode, bpp, plat->base);
if (ret)
return ret;
switch (bpp) {
+ case 32:
case 24:
case 18:
uc_priv->bpix = VIDEO_BPP32;
@@ -341,15 +374,32 @@ static int mxs_video_bind(struct udevice *dev)
{
struct video_uc_platdata *plat = dev_get_uclass_platdata(dev);
struct display_timing timings;
+ u32 bpp = 0;
+ u32 bytes_pp = 0;
int ret;
- ret = ofnode_decode_display_timing(dev_ofnode(dev), 0, &timings);
- if (ret) {
- dev_err(dev, "failed to get any display timings\n");
+ ret = mxs_of_get_timings(dev, &timings, &bpp);
+ if (ret)
+ return ret;
+
+ switch (bpp) {
+ case 32:
+ case 24:
+ case 18:
+ bytes_pp = 4;
+ break;
+ case 16:
+ bytes_pp = 2;
+ break;
+ case 8:
+ bytes_pp = 1;
+ break;
+ default:
+ dev_err(dev, "invalid bpp specified (bpp = %i)\n", bpp);
return -EINVAL;
}
- plat->size = timings.hactive.typ * timings.vactive.typ * BYTES_PP;
+ plat->size = timings.hactive.typ * timings.vactive.typ * bytes_pp;
return 0;
}
diff --git a/drivers/video/rockchip/rk_hdmi.c b/drivers/video/rockchip/rk_hdmi.c
index 51931ceefa..5b44a7e8c9 100644
--- a/drivers/video/rockchip/rk_hdmi.c
+++ b/drivers/video/rockchip/rk_hdmi.c
@@ -93,6 +93,9 @@ int rk_hdmi_ofdata_to_platdata(struct udevice *dev)
priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
+ uclass_get_device_by_phandle(UCLASS_I2C, dev, "ddc-i2c-bus",
+ &hdmi->ddc_bus);
+
return 0;
}
diff --git a/drivers/video/simple_panel.c b/drivers/video/simple_panel.c
index 7a968e740c..c3c0e84732 100644
--- a/drivers/video/simple_panel.c
+++ b/drivers/video/simple_panel.c
@@ -105,6 +105,7 @@ static const struct udevice_id simple_panel_ids[] = {
{ .compatible = "auo,b133xtn01" },
{ .compatible = "auo,b116xw03" },
{ .compatible = "auo,b133htn01" },
+ { .compatible = "lg,lb070wv8" },
{ }
};
diff --git a/drivers/video/sunxi/sunxi_dw_hdmi.c b/drivers/video/sunxi/sunxi_dw_hdmi.c
index 6fe1aa7ee4..cec23295b5 100644
--- a/drivers/video/sunxi/sunxi_dw_hdmi.c
+++ b/drivers/video/sunxi/sunxi_dw_hdmi.c
@@ -373,6 +373,9 @@ static int sunxi_dw_hdmi_probe(struct udevice *dev)
priv->hdmi.phy_set = sunxi_dw_hdmi_phy_cfg;
priv->mux = uc_plat->source_id;
+ uclass_get_device_by_phandle(UCLASS_I2C, dev, "ddc-i2c-bus",
+ &priv->hdmi.ddc_bus);
+
dw_hdmi_init(&priv->hdmi);
return 0;