HDMI on RK3568 is mostly simplified, all this does is enabling DDC for display timings and HPD.
Signed-off-by: Dang Huynh danct12@riseup.net --- drivers/video/rockchip/Makefile | 1 + drivers/video/rockchip/rk3568_hdmi.c | 63 ++++++++++++++++++++++++++++++++++++ 2 files changed, 64 insertions(+)
diff --git a/drivers/video/rockchip/Makefile b/drivers/video/rockchip/Makefile index 2f89a979a2848733be5a6d05817ad76ce3ad3a34..b751c969b46f1933e91a6c0434f31227a709d8e5 100644 --- a/drivers/video/rockchip/Makefile +++ b/drivers/video/rockchip/Makefile @@ -14,6 +14,7 @@ obj-$(CONFIG_DISPLAY_ROCKCHIP_LVDS) += rk_lvds.o obj-hdmi-$(CONFIG_ROCKCHIP_RK3288) += rk3288_hdmi.o obj-hdmi-$(CONFIG_ROCKCHIP_RK3328) += rk3328_hdmi.o obj-hdmi-$(CONFIG_ROCKCHIP_RK3399) += rk3399_hdmi.o +obj-hdmi-$(CONFIG_ROCKCHIP_RK3568) += rk3568_hdmi.o obj-$(CONFIG_DISPLAY_ROCKCHIP_HDMI) += rk_hdmi.o $(obj-hdmi-y) obj-mipi-$(CONFIG_ROCKCHIP_RK3288) += rk3288_mipi.o obj-mipi-$(CONFIG_ROCKCHIP_RK3399) += rk3399_mipi.o diff --git a/drivers/video/rockchip/rk3568_hdmi.c b/drivers/video/rockchip/rk3568_hdmi.c new file mode 100644 index 0000000000000000000000000000000000000000..e0dae919c89d685c145373c8520c52c760f60864 --- /dev/null +++ b/drivers/video/rockchip/rk3568_hdmi.c @@ -0,0 +1,63 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2024 Dang Huynh danct12@riseup.net + */ + +#include <display.h> +#include <dm.h> +#include <dw_hdmi.h> +#include <edid.h> +#include <asm/arch-rockchip/hardware.h> +#include <asm/arch-rockchip/grf_rk3568.h> +#include "rk_hdmi.h" + +#define RK3568_IO_DDC_IN_MSK ((3 << 14) | (3 << (14 + 16))) + +static int rk3568_hdmi_enable(struct udevice *dev, int panel_bpp, + const struct display_timing *edid) +{ + struct rk_hdmi_priv *priv = dev_get_priv(dev); + + return dw_hdmi_enable(&priv->hdmi, edid); +} + +static int rk3568_hdmi_of_to_plat(struct udevice *dev) +{ + struct rk_hdmi_priv *priv = dev_get_priv(dev); + struct dw_hdmi *hdmi = &priv->hdmi; + + hdmi->i2c_clk_high = 0x71; + hdmi->i2c_clk_low = 0x76; + + return rk_hdmi_of_to_plat(dev); +} + +static int rk3568_hdmi_probe(struct udevice *dev) +{ + struct rk_hdmi_priv *priv = dev_get_priv(dev); + struct rk3568_grf *grf = priv->grf; + + writel(RK3568_IO_DDC_IN_MSK, &grf->vo_con1); + + return rk_hdmi_probe(dev); +} + +static const struct dm_display_ops rk3568_hdmi_ops = { + .read_edid = rk_hdmi_read_edid, + .enable = rk3568_hdmi_enable, +}; + +static const struct udevice_id rk3568_hdmi_ids[] = { + { .compatible = "rockchip,rk3568-dw-hdmi" }, + { } +}; + +U_BOOT_DRIVER(rk3568_hdmi_rockchip) = { + .name = "rk3568_hdmi_rockchip", + .id = UCLASS_DISPLAY, + .of_match = rk3568_hdmi_ids, + .ops = &rk3568_hdmi_ops, + .of_to_plat = rk3568_hdmi_of_to_plat, + .probe = rk3568_hdmi_probe, + .priv_auto = sizeof(struct rk_hdmi_priv), +};