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Subject[PATCH v2 11/11] dts: hisilicon: add support for USB3 on Hikey 970
Date
Add the USB3 bindings for Kirin 970 phy and Hikey 970 board.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
.../boot/dts/hisilicon/hi3670-hikey970.dts | 102 ++++++++++++++++++
arch/arm64/boot/dts/hisilicon/hi3670.dtsi | 58 ++++++++++
drivers/misc/hisi_hikey_usb.c | 29 ++---
3 files changed, 167 insertions(+), 22 deletions(-)

diff --git a/arch/arm64/boot/dts/hisilicon/hi3670-hikey970.dts b/arch/arm64/boot/dts/hisilicon/hi3670-hikey970.dts
index f218acceec0b..744cdbb9867a 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3670-hikey970.dts
+++ b/arch/arm64/boot/dts/hisilicon/hi3670-hikey970.dts
@@ -62,6 +62,29 @@ wlan_en: wlan-en-1-8v {
startup-delay-us = <70000>;
enable-active-high;
};
+ hikey_usbhub: hikey_usbhub {
+ compatible = "hisilicon,kirin970_hikey_usbhub";
+
+ typec-vbus-gpios = <&gpio26 1 0>;
+ otg-switch-gpios = <&gpio4 2 0>;
+ hub_reset_en_gpio = <&gpio0 3 0>;
+ hub-vdd-supply = <&ldo17>;
+ usb-role-switch;
+
+ port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hikey_usb_ep0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&dwc3_role_switch>;
+ };
+ hikey_usb_ep1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&rt1711h_ep>;
+ };
+ };
+ };
};

/*
@@ -440,6 +463,57 @@ &uart6 {
status = "okay";
};

+&i2c1 {
+ status = "okay";
+
+ rt1711h: rt1711h@4e {
+ compatible = "richtek,rt1711h";
+ reg = <0x4e>;
+ status = "ok";
+ interrupt-parent = <&gpio27>;
+ interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&usb_cfg_func>;
+
+ usb_con: connector {
+ compatible = "usb-c-connector";
+ label = "USB-C";
+ data-role = "dual";
+ power-role = "dual";
+ try-power-role = "sink";
+ source-pdos = <PDO_FIXED(5000, 500, PDO_FIXED_USB_COMM)>;
+ sink-pdos = <PDO_FIXED(5000, 500, PDO_FIXED_USB_COMM)
+ PDO_VAR(5000, 5000, 1000)>;
+ op-sink-microwatt = <10000000>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@1 {
+ reg = <1>;
+ usb_con_ss: endpoint {
+ remote-endpoint = <&dwc3_ss>;
+ };
+ };
+ };
+ };
+ port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ rt1711h_ep: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&hikey_usb_ep1>;
+ };
+ };
+ };
+};
+
+&i2c2 {
+ /* USB HUB is on this bus at address 0x44 */
+ status = "okay";
+};
+
&i2c4 {
status = "okay";

@@ -469,3 +543,31 @@ adv7533_in: endpoint {
};
};
};
+
+&dwc3 { /* USB */
+ dr_mode = "otg";
+ maximum-speed = "super-speed";
+ phy_type = "utmi";
+ snps,dis-del-phy-power-chg-quirk;
+ snps,dis_u2_susphy_quirk;
+ snps,dis_u3_susphy_quirk;
+ snps,tx_de_emphasis_quirk;
+ snps,tx_de_emphasis = <1>;
+ snps,dis-split-quirk;
+ snps,gctl-reset-quirk;
+ usb-role-switch;
+ role-switch-default-mode = "host";
+ port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ dwc3_role_switch: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&hikey_usb_ep0>;
+ };
+
+ dwc3_ss: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&usb_con_ss>;
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/hisilicon/hi3670.dtsi b/arch/arm64/boot/dts/hisilicon/hi3670.dtsi
index e2b2e21295a7..bd88a67ec4a9 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3670.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi3670.dtsi
@@ -8,6 +8,7 @@

#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/clock/hi3670-clock.h>
+#include <dt-bindings/usb/pd.h>

/ {
compatible = "hisilicon,hi3670";
@@ -800,5 +801,62 @@ i2c4: i2c@fdf0d000 {
pinctrl-0 = <&i2c4_pmx_func &i2c4_cfg_func>;
status = "disabled";
};
+
+ usb3_otg_bc: usb3_otg_bc@ff200000 {
+ compatible = "syscon", "simple-mfd";
+ reg = <0x0 0xff200000 0x0 0x1000>;
+
+ usb_phy: usbphy {
+ compatible = "hisilicon,hi3670-usb-phy";
+ #phy-cells = <0>;
+ hisilicon,pericrg-syscon = <&crg_ctrl>;
+ hisilicon,pctrl-syscon = <&pctrl>;
+ hisilicon,sctrl-syscon = <&sctrl>;
+ hisilicon,eye-diagram-param = <0xFDFEE4>;
+ hisilicon,tx-vboost-lvl = <0x5>;
+
+ phy-supply = <&ldo17>;
+ };
+ };
+
+ usb31_misc_rst: usb31_misc_rst_controller {
+ compatible = "hisilicon,hi3660-reset";
+ #reset-cells = <2>;
+ hisi,rst-syscon = <&usb3_otg_bc>;
+ };
+
+ usb3: hisi_dwc3 {
+ compatible = "hisilicon,hi3670-dwc3";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ clocks = <&crg_ctrl HI3670_CLK_GATE_ABB_USB>,
+ <&crg_ctrl HI3670_HCLK_GATE_USB3OTG>,
+ <&crg_ctrl HI3670_CLK_GATE_USB3OTG_REF>,
+ <&crg_ctrl HI3670_ACLK_GATE_USB3DVFS>;
+ clock-names = "clk_gate_abb_usb",
+ "hclk_gate_usb3otg",
+ "clk_gate_usb3otg_ref",
+ "aclk_gate_usb3dvfs";
+
+ assigned-clocks = <&crg_ctrl HI3670_ACLK_GATE_USB3DVFS>;
+ assigned-clock-rates = <238000000>;
+ resets = <&crg_rst 0x90 6>,
+ <&crg_rst 0x90 7>,
+ <&usb31_misc_rst 0xA0 8>,
+ <&usb31_misc_rst 0xA0 9>;
+
+ dwc3: dwc3@ff100000 {
+ compatible = "snps,dwc3";
+ reg = <0x0 0xff100000 0x0 0x100000>;
+
+ interrupts = <0 159 IRQ_TYPE_LEVEL_HIGH>,
+ <0 161 IRQ_TYPE_LEVEL_HIGH>;
+
+ phys = <&usb_phy>;
+ phy-names = "usb3-phy";
+ };
+ };
};
};
diff --git a/drivers/misc/hisi_hikey_usb.c b/drivers/misc/hisi_hikey_usb.c
index b884680867a5..2ddd4072788d 100644
--- a/drivers/misc/hisi_hikey_usb.c
+++ b/drivers/misc/hisi_hikey_usb.c
@@ -35,6 +35,7 @@ struct hisi_hikey_usb {
struct gpio_desc *otg_switch;
struct gpio_desc *typec_vbus;
struct gpio_desc *hub_vbus;
+ struct gpio_desc *reset;

struct regulator *regulator;

@@ -53,10 +54,8 @@ static void hub_power_ctrl(struct hisi_hikey_usb *hisi_hikey_usb, int value)
{
int ret, status;

- if (!hisi_hikey_usb->hub_vbus)
- return;
-
- gpiod_set_value_cansleep(hisi_hikey_usb->hub_vbus, value);
+ if (hisi_hikey_usb->hub_vbus)
+ gpiod_set_value_cansleep(hisi_hikey_usb->hub_vbus, value);

if (!hisi_hikey_usb->regulator)
return;
@@ -152,7 +151,6 @@ static int hisi_hikey_usb_parse_kirin970(struct platform_device *pdev,
struct hisi_hikey_usb *hisi_hikey_usb)
{
struct regulator *regulator;
- int hub_reset_en_gpio;
int ret;

regulator = devm_regulator_get(&pdev->dev, "hub-vdd");
@@ -169,23 +167,10 @@ static int hisi_hikey_usb_parse_kirin970(struct platform_device *pdev,
}
hisi_hikey_usb->regulator = regulator;

- hub_reset_en_gpio = of_get_named_gpio(pdev->dev.of_node,
- "hub_reset_en_gpio", 0);
- if (!gpio_is_valid(hub_reset_en_gpio)) {
- dev_err(&pdev->dev, "Failed to get a valid reset gpio\n");
- return -ENODEV;
- }
-
- ret = devm_gpio_request(&pdev->dev, hub_reset_en_gpio,
- "hub_reset_en_gpio");
- if (ret) {
- dev_err(&pdev->dev, "Failed to request the reset gpio\n");
- return ret;
- }
- ret = gpio_direction_output(hub_reset_en_gpio, 1);
- if (ret)
- dev_err(&pdev->dev,
- "Failed to set the direction of the reset gpio\n");
+ hisi_hikey_usb->reset = devm_gpiod_get(&pdev->dev, "hub_reset_en_gpio",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(hisi_hikey_usb->reset))
+ return PTR_ERR(hisi_hikey_usb->reset);

return ret;
}
--
2.26.2
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