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phy: rockchip-usb: support usb2.0 phy for rk3399 SoC

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1. Add a new compatible for rk3399;
2. Support gpio operation for vbus-drv.

Change-Id: I2eb1ac377db0bcb907d009c56fba22f1951c128e
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
This commit is contained in:
Frank Wang 2016-03-23 15:36:21 +08:00 committed by Huang, Tao
parent 7b0de50e99
commit dbcd409a06
1 changed files with 26 additions and 0 deletions
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26
drivers/phy/phy-rockchip-usb.c Normal file → Executable file
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@ -17,6 +17,7 @@
#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/io.h>
#include <linux/gpio/consumer.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mutex.h>
@ -42,6 +43,10 @@
#define USB2_PHY_SUSPEND (0x5 << 0 | 0xd << 4 | 0x1 << 8)
#define USB2_PHY_RESUME (0)
#define UTMI_SEL_GRF_WR_ENA (0x3 << 16)
#define UTMI_SEL_GRF_SUSPEND (0x1 << 0)
#define UTMI_SEL_GRF_RESUME (0x3 << 0)
struct rockchip_usb_phys {
int reg;
const char *pll_name;
@ -57,6 +62,7 @@ struct rockchip_usb_phy_pdata {
struct rockchip_usb_phy_base {
struct device *dev;
struct regmap *reg_base;
struct gpio_desc *vbus_drv_gpio;
const struct rockchip_usb_phy_pdata *pdata;
};
@ -320,6 +326,17 @@ static const struct rockchip_usb_phy_pdata rk336x_pdata = {
.siddq_ctl = false,
};
static const struct rockchip_usb_phy_pdata rk3399_pdata = {
.phys = (struct rockchip_usb_phys[]){
{ .reg = 0xe458, .pll_name = "sclk_otgphy0_480m" },
{ .reg = 0xe468, .pll_name = "sclk_otgphy1_480m" },
{ /* sentinel */ }
},
.phy_pw_on = UTMI_SEL_GRF_WR_ENA | UTMI_SEL_GRF_RESUME,
.phy_pw_off = UTMI_SEL_GRF_WR_ENA | UTMI_SEL_GRF_SUSPEND,
.siddq_ctl = false,
};
static int rockchip_usb_phy_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@ -349,6 +366,14 @@ static int rockchip_usb_phy_probe(struct platform_device *pdev)
return PTR_ERR(phy_base->reg_base);
}
/* Request the vbus_drv GPIO asserted */
phy_base->vbus_drv_gpio =
devm_gpiod_get_optional(dev, "vbus_drv", GPIOD_OUT_HIGH);
if (!phy_base->vbus_drv_gpio)
dev_info(&pdev->dev, "vbus_drv is not assigned!\n");
else if (IS_ERR(phy_base->vbus_drv_gpio))
return PTR_ERR(phy_base->vbus_drv_gpio);
for_each_available_child_of_node(dev->of_node, child) {
err = rockchip_usb_phy_init(phy_base, child);
if (err) {
@ -366,6 +391,7 @@ static const struct of_device_id rockchip_usb_phy_dt_ids[] = {
{ .compatible = "rockchip,rk3188-usb-phy", .data = &rk3188_pdata },
{ .compatible = "rockchip,rk3288-usb-phy", .data = &rk3288_pdata },
{ .compatible = "rockchip,rk336x-usb-phy", .data = &rk336x_pdata },
{ .compatible = "rockchip,rk3399-usb-phy", .data = &rk3399_pdata },
{}
};