Re: [PATCH v4 5/9] usb: s3c-hsotg: Use the new Exynos USB phy driverwith the generic phy framework

From: Kishon Vijay Abraham I
Date: Fri Dec 06 2013 - 06:12:11 EST


Hi,

On Thursday 05 December 2013 05:59 PM, Kamil Debski wrote:
> Change the used phy driver to the new Exynos USB phy driver that uses the
> generic phy framework.
>
> Signed-off-by: Kamil Debski <k.debski@xxxxxxxxxxx>
> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
> ---
> .../devicetree/bindings/usb/samsung-hsotg.txt | 4 ++++
> drivers/usb/gadget/s3c-hsotg.c | 11 ++++++-----
> 2 files changed, 10 insertions(+), 5 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/usb/samsung-hsotg.txt b/Documentation/devicetree/bindings/usb/samsung-hsotg.txt
> index b83d428..9340d06 100644
> --- a/Documentation/devicetree/bindings/usb/samsung-hsotg.txt
> +++ b/Documentation/devicetree/bindings/usb/samsung-hsotg.txt
> @@ -24,6 +24,8 @@ Required properties:
> - first entry: must be "otg"
> - vusb_d-supply: phandle to voltage regulator of digital section,
> - vusb_a-supply: phandle to voltage regulator of analog section.
> +- phys: from general PHY binding: phandle to the PHY device
> +- phy-names: from general PHY binding: should be "usb2-phy"

are you sure it's usb2-phy. The example below seems to have a different value.

Thanks
Kishon

>
> Example
> -----
> @@ -36,5 +38,7 @@ Example
> clock-names = "otg";
> vusb_d-supply = <&vusb_reg>;
> vusb_a-supply = <&vusbdac_reg>;
> + phys = <&usb2phy 0>;
> + phy-names = "device";
> };
>
> diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
> index eccb147..db096fd 100644
> --- a/drivers/usb/gadget/s3c-hsotg.c
> +++ b/drivers/usb/gadget/s3c-hsotg.c
> @@ -31,6 +31,7 @@
> #include <linux/regulator/consumer.h>
> #include <linux/of.h>
> #include <linux/of_platform.h>
> +#include <linux/phy/phy.h>
>
> #include <linux/usb/ch9.h>
> #include <linux/usb/gadget.h>
> @@ -162,7 +163,7 @@ struct s3c_hsotg_ep {
> struct s3c_hsotg {
> struct device *dev;
> struct usb_gadget_driver *driver;
> - struct usb_phy *phy;
> + struct phy *phy;
> struct s3c_hsotg_plat *plat;
>
> spinlock_t lock;
> @@ -2905,7 +2906,7 @@ static void s3c_hsotg_phy_enable(struct s3c_hsotg *hsotg)
> dev_dbg(hsotg->dev, "pdev 0x%p\n", pdev);
>
> if (hsotg->phy)
> - usb_phy_init(hsotg->phy);
> + phy_power_on(hsotg->phy);
> else if (hsotg->plat->phy_init)
> hsotg->plat->phy_init(pdev, hsotg->plat->phy_type);
> }
> @@ -2922,7 +2923,7 @@ static void s3c_hsotg_phy_disable(struct s3c_hsotg *hsotg)
> struct platform_device *pdev = to_platform_device(hsotg->dev);
>
> if (hsotg->phy)
> - usb_phy_shutdown(hsotg->phy);
> + phy_power_off(hsotg->phy);
> else if (hsotg->plat->phy_exit)
> hsotg->plat->phy_exit(pdev, hsotg->plat->phy_type);
> }
> @@ -3529,7 +3530,7 @@ static void s3c_hsotg_delete_debug(struct s3c_hsotg *hsotg)
> static int s3c_hsotg_probe(struct platform_device *pdev)
> {
> struct s3c_hsotg_plat *plat = dev_get_platdata(&pdev->dev);
> - struct usb_phy *phy;
> + struct phy *phy;
> struct device *dev = &pdev->dev;
> struct s3c_hsotg_ep *eps;
> struct s3c_hsotg *hsotg;
> @@ -3544,7 +3545,7 @@ static int s3c_hsotg_probe(struct platform_device *pdev)
> return -ENOMEM;
> }
>
> - phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
> + phy = devm_phy_get(&pdev->dev, "usb2-phy");
> if (IS_ERR(phy)) {
> /* Fallback for pdata */
> plat = dev_get_platdata(&pdev->dev);
>

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