Hi, Martin

Tested-by: Sean Wang <[email protected]>

I've tested the series with U2 storage and U3 ethernet devices on both
boards MT7623 BPI-R2 and MT7622 RFB1 using xhci-mtk driver, they are
still working well.

Below is related logs for test devices probing

----

# [   42.590356] usb 2-1: new SuperSpeed USB device number 2 using
xhci-mtk
[   42.719883] usb-storage 2-1:1.0: USB Mass Storage device detected
[   42.726339] scsi host2: usb-storage 2-1:1.0
[   43.815572] scsi 2:0:0:0: Direct-Access     Kingston DataTraveler 3.0
PMAP PQ: 0 ANSI: 6
[   44.792938] sd 2:0:0:0: [sda] 30728832 512-byte logical blocks: (15.7
GB/14.7 GiB)
[   44.800658] sd 2:0:0:0: [sda] Write Protect is off
[   44.805582] sd 2:0:0:0: [sda] No Caching mode page found
[   44.810888] sd 2:0:0:0: [sda] Assuming drive cache: write through

----

# [  134.270617] usb 2-1: new SuperSpeed USB device number 3 using
xhci-mtk
[  134.664163] ax88179_178a 2-1:1.0 eth1: register 'ax88179_178a' at
usb-1a1c0000.usb-1, ASIX AX88179 USB 3.0 Gigabit Ethernet,
00:11:6b:68:4c:9e


On Sat, 2018-03-03 at 22:43 +0100, Martin Blumenstingl wrote:
> The new PHY wrapper is now wired up in the core HCD code. This means
> that PHYs are now controlled (initialized, enabled, disabled, exited)
> without requiring any host-driver specific code.
> Remove the custom USB PHY handling from the xhci-mtk driver as the core
> HCD code now handles this.
> 
> Signed-off-by: Martin Blumenstingl <[email protected]>
> ---
>  drivers/usb/host/xhci-mtk.c | 98 
> +--------------------------------------------
>  1 file changed, 2 insertions(+), 96 deletions(-)
> 
> diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
> index b0ab4d5e2751..7334da9e9779 100644
> --- a/drivers/usb/host/xhci-mtk.c
> +++ b/drivers/usb/host/xhci-mtk.c
> @@ -14,7 +14,6 @@
>  #include <linux/mfd/syscon.h>
>  #include <linux/module.h>
>  #include <linux/of.h>
> -#include <linux/phy/phy.h>
>  #include <linux/platform_device.h>
>  #include <linux/pm_runtime.h>
>  #include <linux/regmap.h>
> @@ -352,62 +351,6 @@ static const struct xhci_driver_overrides 
> xhci_mtk_overrides __initconst = {
>  
>  static struct hc_driver __read_mostly xhci_mtk_hc_driver;
>  
> -static int xhci_mtk_phy_init(struct xhci_hcd_mtk *mtk)
> -{
> -     int i;
> -     int ret;
> -
> -     for (i = 0; i < mtk->num_phys; i++) {
> -             ret = phy_init(mtk->phys[i]);
> -             if (ret)
> -                     goto exit_phy;
> -     }
> -     return 0;
> -
> -exit_phy:
> -     for (; i > 0; i--)
> -             phy_exit(mtk->phys[i - 1]);
> -
> -     return ret;
> -}
> -
> -static int xhci_mtk_phy_exit(struct xhci_hcd_mtk *mtk)
> -{
> -     int i;
> -
> -     for (i = 0; i < mtk->num_phys; i++)
> -             phy_exit(mtk->phys[i]);
> -
> -     return 0;
> -}
> -
> -static int xhci_mtk_phy_power_on(struct xhci_hcd_mtk *mtk)
> -{
> -     int i;
> -     int ret;
> -
> -     for (i = 0; i < mtk->num_phys; i++) {
> -             ret = phy_power_on(mtk->phys[i]);
> -             if (ret)
> -                     goto power_off_phy;
> -     }
> -     return 0;
> -
> -power_off_phy:
> -     for (; i > 0; i--)
> -             phy_power_off(mtk->phys[i - 1]);
> -
> -     return ret;
> -}
> -
> -static void xhci_mtk_phy_power_off(struct xhci_hcd_mtk *mtk)
> -{
> -     unsigned int i;
> -
> -     for (i = 0; i < mtk->num_phys; i++)
> -             phy_power_off(mtk->phys[i]);
> -}
> -
>  static int xhci_mtk_ldos_enable(struct xhci_hcd_mtk *mtk)
>  {
>       int ret;
> @@ -488,8 +431,6 @@ static int xhci_mtk_probe(struct platform_device *pdev)
>       struct xhci_hcd *xhci;
>       struct resource *res;
>       struct usb_hcd *hcd;
> -     struct phy *phy;
> -     int phy_num;
>       int ret = -ENODEV;
>       int irq;
>  
> @@ -529,16 +470,6 @@ static int xhci_mtk_probe(struct platform_device *pdev)
>               return ret;
>       }
>  
> -     mtk->num_phys = of_count_phandle_with_args(node,
> -                     "phys", "#phy-cells");
> -     if (mtk->num_phys > 0) {
> -             mtk->phys = devm_kcalloc(dev, mtk->num_phys,
> -                                     sizeof(*mtk->phys), GFP_KERNEL);
> -             if (!mtk->phys)
> -                     return -ENOMEM;
> -     } else {
> -             mtk->num_phys = 0;
> -     }
>       pm_runtime_enable(dev);
>       pm_runtime_get_sync(dev);
>       device_enable_async_suspend(dev);
> @@ -596,23 +527,6 @@ static int xhci_mtk_probe(struct platform_device *pdev)
>               mtk->has_ippc = false;
>       }
>  
> -     for (phy_num = 0; phy_num < mtk->num_phys; phy_num++) {
> -             phy = devm_of_phy_get_by_index(dev, node, phy_num);
> -             if (IS_ERR(phy)) {
> -                     ret = PTR_ERR(phy);
> -                     goto put_usb2_hcd;
> -             }
> -             mtk->phys[phy_num] = phy;
> -     }
> -
> -     ret = xhci_mtk_phy_init(mtk);
> -     if (ret)
> -             goto put_usb2_hcd;
> -
> -     ret = xhci_mtk_phy_power_on(mtk);
> -     if (ret)
> -             goto exit_phys;
> -
>       device_init_wakeup(dev, true);
>  
>       xhci = hcd_to_xhci(hcd);
> @@ -630,7 +544,7 @@ static int xhci_mtk_probe(struct platform_device *pdev)
>                       dev_name(dev), hcd);
>       if (!xhci->shared_hcd) {
>               ret = -ENOMEM;
> -             goto power_off_phys;
> +             goto disable_device_wakeup;
>       }
>  
>       ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
> @@ -653,13 +567,9 @@ static int xhci_mtk_probe(struct platform_device *pdev)
>       xhci_mtk_sch_exit(mtk);
>       usb_put_hcd(xhci->shared_hcd);
>  
> -power_off_phys:
> -     xhci_mtk_phy_power_off(mtk);
> +disable_device_wakeup:
>       device_init_wakeup(dev, false);
>  
> -exit_phys:
> -     xhci_mtk_phy_exit(mtk);
> -
>  put_usb2_hcd:
>       usb_put_hcd(hcd);
>  
> @@ -682,8 +592,6 @@ static int xhci_mtk_remove(struct platform_device *dev)
>       struct xhci_hcd *xhci = hcd_to_xhci(hcd);
>  
>       usb_remove_hcd(xhci->shared_hcd);
> -     xhci_mtk_phy_power_off(mtk);
> -     xhci_mtk_phy_exit(mtk);
>       device_init_wakeup(&dev->dev, false);
>  
>       usb_remove_hcd(hcd);
> @@ -718,7 +626,6 @@ static int __maybe_unused xhci_mtk_suspend(struct device 
> *dev)
>       del_timer_sync(&xhci->shared_hcd->rh_timer);
>  
>       xhci_mtk_host_disable(mtk);
> -     xhci_mtk_phy_power_off(mtk);
>       xhci_mtk_clks_disable(mtk);
>       usb_wakeup_set(mtk, true);
>       return 0;
> @@ -732,7 +639,6 @@ static int __maybe_unused xhci_mtk_resume(struct device 
> *dev)
>  
>       usb_wakeup_set(mtk, false);
>       xhci_mtk_clks_enable(mtk);
> -     xhci_mtk_phy_power_on(mtk);
>       xhci_mtk_host_enable(mtk);
>  
>       xhci_dbg(xhci, "%s: restart port polling\n", __func__);


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