From: Jagan Teki <ja...@edgeble.ai>
Add Rockchip RK3328 HDMI Out driver.
Signed-off-by: Jagan Teki <ja...@edgeble.ai>
---
drivers/video/rockchip/Makefile | 1 +
drivers/video/rockchip/rk3328_hdmi.c | 131 +++++++++++++++++++++++++++
drivers/video/rockchip/rk_hdmi.h | 3 +
3 files changed, 135 insertions(+)
create mode 100644 drivers/video/rockchip/rk3328_hdmi.c
diff --git a/drivers/video/rockchip/Makefile b/drivers/video/rockchip/Makefile
index 8128289cc8..4991303c73 100644
--- a/drivers/video/rockchip/Makefile
+++ b/drivers/video/rockchip/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_ROCKCHIP_RK3399) += rk3399_vop.o
obj-$(CONFIG_DISPLAY_ROCKCHIP_EDP) += rk_edp.o
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-$(CONFIG_DISPLAY_ROCKCHIP_HDMI) += rk_hdmi.o $(obj-hdmi-y)
obj-mipi-$(CONFIG_ROCKCHIP_RK3288) += rk3288_mipi.o
diff --git a/drivers/video/rockchip/rk3328_hdmi.c
b/drivers/video/rockchip/rk3328_hdmi.c
new file mode 100644
index 0000000000..23624699ba
--- /dev/null
+++ b/drivers/video/rockchip/rk3328_hdmi.c
@@ -0,0 +1,131 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2023 Edgeble AI Technologies Pvt. Ltd.
+ */
+
+#include <clk.h>
+#include <display.h>
+#include <dm.h>
+#include <dw_hdmi.h>
+#include <asm/io.h>
+#include <asm/arch-rockchip/grf_rk3328.h>
+#include "rk_hdmi.h"
+
+#define RK3328_IO_3V_DOMAIN (7 << (9 + 16))
+#define RK3328_IO_5V_DOMAIN ((7 << 9) | (3 << (9 + 16)))
+#define RK3328_IO_DDC_IN_MSK ((3 << 10) | (3 << (10 + 16)))
+#define RK3328_IO_CTRL_BY_HDMI ((1 << 13) | (1 << (13 + 16)))
+
+static int rk3328_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 rk3328_dw_hdmi_phy_cfg(struct dw_hdmi *hdmi, uint pixclock)
+{
+ struct rk_hdmi_priv *priv = container_of(hdmi, struct rk_hdmi_priv,
hdmi);
+ int ret;
+
+ ret = generic_phy_init(&priv->phy);
+ if (ret) {
+ printf("failed to init phy (ret=%d)\n", ret);
+ return ret;
+ }
+
+ ret = generic_phy_power_on(&priv->phy);
+ if (ret) {
+ printf("failed to power on phy (ret=%d)\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void rk3328_dw_hdmi_setup_hpd(struct dw_hdmi *hdmi)
+{
+ struct rk_hdmi_priv *priv = container_of(hdmi, struct rk_hdmi_priv,
hdmi);
+ struct rk3328_grf_regs *grf = priv->grf;
+
+ writel(RK3328_IO_DDC_IN_MSK, &grf->soc_con[2]);
+ writel(RK3328_IO_CTRL_BY_HDMI, &grf->soc_con[3]);
+}
+
+static void rk3328_dw_hdmi_read_hpd(struct dw_hdmi *hdmi, bool hpd_status)
+{
+ struct rk_hdmi_priv *priv = container_of(hdmi, struct rk_hdmi_priv,
hdmi);
+ struct rk3328_grf_regs *grf = priv->grf;
+
+ if (hpd_status)
+ writel(RK3328_IO_5V_DOMAIN, &grf->soc_con[4]);
+ else
+ writel(RK3328_IO_3V_DOMAIN, &grf->soc_con[4]);
+}
+
+static const struct dw_hdmi_phy_ops dw_hdmi_rk3328_phy_ops = {
+ .phy_set = rk3328_dw_hdmi_phy_cfg,
+ .setup_hpd = rk3328_dw_hdmi_setup_hpd,
+ .read_hpd = rk3328_dw_hdmi_read_hpd,
+};
+
+static const struct dw_hdmi_plat_data dw_hdmi_rk3328_plat_data = {
+ .phy_force_vendor = true,
+ .phy_ops = &dw_hdmi_rk3328_phy_ops,
+};
+
+static int rk3328_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;
+
+ rk_hdmi_of_to_plat(dev);
+
+ hdmi->data = &dw_hdmi_rk3328_plat_data;
+
+ return 0;
+}
+
+static int rk3328_hdmi_probe(struct udevice *dev)
+{
+ struct rk_hdmi_priv *priv = dev_get_priv(dev);
+ int ret;
+
+ ret = generic_phy_get_by_name(dev, "hdmi", &priv->phy);
+ if (ret) {
+ printf("failed to get hdmi phy\n");
+ return ret;
+ };
+
+ ret = rk_hdmi_probe(dev);
+ if (ret) {
+ printf("failed to probe rk hdmi\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static const struct dm_display_ops rk3328_hdmi_ops = {
+ .read_edid = rk_hdmi_read_edid,
+ .enable = rk3328_hdmi_enable,
+};
+
+static const struct udevice_id rk3328_hdmi_ids[] = {
+ { .compatible = "rockchip,rk3328-dw-hdmi" },
+ { }
+};
+
+U_BOOT_DRIVER(rk3328_hdmi_rockchip) = {
+ .name = "rk3328_hdmi_rockchip",
+ .id = UCLASS_DISPLAY,
+ .of_match = rk3328_hdmi_ids,
+ .ops = &rk3328_hdmi_ops,
+ .of_to_plat = rk3328_hdmi_of_to_plat,
+ .probe = rk3328_hdmi_probe,
+ .priv_auto = sizeof(struct rk_hdmi_priv),
+};
diff --git a/drivers/video/rockchip/rk_hdmi.h b/drivers/video/rockchip/rk_hdmi.h
index 200dbaea74..dcfba3d3d7 100644
--- a/drivers/video/rockchip/rk_hdmi.h
+++ b/drivers/video/rockchip/rk_hdmi.h
@@ -6,6 +6,8 @@
#ifndef __RK_HDMI_H__
#define __RK_HDMI_H__
+#include <generic-phy.h>
+
struct rkhdmi_driverdata {
/* configuration */
u8 i2c_clk_high;
@@ -19,6 +21,7 @@ struct rkhdmi_driverdata {
struct rk_hdmi_priv {
struct dw_hdmi hdmi;
+ struct phy phy;
void *grf;
};
--
2.25.1
