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usb: dwc2_udc_otg: use the phy bulk API to get phys

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Use the phy bulk API to get a group of phys

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Weijie Gao <weijie.gao@mediatek.com>
This commit is contained in:
Chunfeng Yun 2020-05-02 11:35:14 +02:00 • committed by Marek Vasut
parent 6dfb8a8052
commit cf67e45179
1 changed files with 17 additions and 76 deletions
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93
drivers/usb/gadget/dwc2_udc_otg.c
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@ -943,8 +943,7 @@ int usb_gadget_handle_interrupts(int index)
struct dwc2_priv_data { struct dwc2_priv_data {
struct clk_bulk clks; struct clk_bulk clks;
struct reset_ctl_bulk resets; struct reset_ctl_bulk resets;
struct phy *phys; struct phy_bulk phys;
int num_phys;
struct udevice *usb33d_supply; struct udevice *usb33d_supply;
}; };
@ -953,87 +952,29 @@ int dm_usb_gadget_handle_interrupts(struct udevice *dev)
return dwc2_udc_handle_interrupt(); return dwc2_udc_handle_interrupt();
} }
int dwc2_phy_setup(struct udevice *dev, struct phy **array, int *num_phys) static int dwc2_phy_setup(struct udevice *dev, struct phy_bulk *phys)
{ {
int i, ret, count; int ret;
struct phy *usb_phys;
/* Return if no phy declared */ ret = generic_phy_get_bulk(dev, phys);
if (!dev_read_prop(dev, "phys", NULL)) if (ret)
return 0; return ret;
count = dev_count_phandle_with_args(dev, "phys", "#phy-cells"); ret = generic_phy_init_bulk(phys);
if (count <= 0) if (ret)
return count; return ret;
usb_phys = devm_kcalloc(dev, count, sizeof(struct phy), ret = generic_phy_power_on_bulk(phys);
GFP_KERNEL); if (ret)
if (!usb_phys) generic_phy_exit_bulk(phys);
return -ENOMEM;
for (i = 0; i < count; i++) {
ret = generic_phy_get_by_index(dev, i, &usb_phys[i]);
if (ret && ret != -ENOENT) {
dev_err(dev, "Failed to get USB PHY%d for %s\n",
i, dev->name);
return ret;
}
}
for (i = 0; i < count; i++) {
ret = generic_phy_init(&usb_phys[i]);
if (ret) {
dev_err(dev, "Can't init USB PHY%d for %s\n",
i, dev->name);
goto phys_init_err;
}
}
for (i = 0; i < count; i++) {
ret = generic_phy_power_on(&usb_phys[i]);
if (ret) {
dev_err(dev, "Can't power USB PHY%d for %s\n",
i, dev->name);
goto phys_poweron_err;
}
}
*array = usb_phys;
*num_phys = count;
return 0;
phys_poweron_err:
for (i = count - 1; i >= 0; i--)
generic_phy_power_off(&usb_phys[i]);
for (i = 0; i < count; i++)
generic_phy_exit(&usb_phys[i]);
return ret;
phys_init_err:
for (; i >= 0; i--)
generic_phy_exit(&usb_phys[i]);
return ret; return ret;
} }
void dwc2_phy_shutdown(struct udevice *dev, struct phy *usb_phys, int num_phys) static void dwc2_phy_shutdown(struct udevice *dev, struct phy_bulk *phys)
{ {
int i, ret; generic_phy_power_off_bulk(phys);
generic_phy_exit_bulk(phys);
for (i = 0; i < num_phys; i++) {
if (!generic_phy_valid(&usb_phys[i]))
continue;
ret = generic_phy_power_off(&usb_phys[i]);
ret |= generic_phy_exit(&usb_phys[i]);
if (ret) {
dev_err(dev, "Can't shutdown USB PHY%d for %s\n",
i, dev->name);
}
}
} }
static int dwc2_udc_otg_ofdata_to_platdata(struct udevice *dev) static int dwc2_udc_otg_ofdata_to_platdata(struct udevice *dev)
@ -1158,7 +1099,7 @@ static int dwc2_udc_otg_probe(struct udevice *dev)
if (ret) if (ret)
return ret; return ret;
ret = dwc2_phy_setup(dev, &priv->phys, &priv->num_phys); ret = dwc2_phy_setup(dev, &priv->phys);
if (ret) if (ret)
return ret; return ret;
@ -1208,7 +1149,7 @@ static int dwc2_udc_otg_remove(struct udevice *dev)
clk_release_bulk(&priv->clks); clk_release_bulk(&priv->clks);
dwc2_phy_shutdown(dev, priv->phys, priv->num_phys); dwc2_phy_shutdown(dev, &priv->phys);
return dm_scan_fdt_dev(dev); return dm_scan_fdt_dev(dev);
} }