target/linux/layerscape/patches-5.4/820-usb-0002-MLK-14285-1-usb-phy-add-usb-mode-for-usb_phy.patch

   1 From ec89a34069e9d33dd8f809c02a12ffb619d67e1f Mon Sep 17 00:00:00 2001
   2 From: Li Jun <jun.li@nxp.com>
   3 Date: Wed, 12 Apr 2017 05:31:17 +0800
   4 Subject: [PATCH] MLK-14285-1 usb: phy: add usb mode for usb_phy
   5
   6 USB phy driver may need to know the current working mode of
   7 the controller, and does some different settings according to
   8 host mode or device mode.
   9
  10 Signed-off-by: Li Jun <jun.li@nxp.com>
  11 (cherry picked from commit 2286cb30feedd6f4a5cb82a0f0af5aa3a04ab698)
  12 Signed-off-by: Vipul Kumar <vipul_kumar@mentor.com>
  13 Signed-off-by: Srikanth Krishnakar <Srikanth_Krishnakar@mentor.com>
  14 ---
  15  include/linux/usb/phy.h | 19 +++++++++++++++++++
  16  1 file changed, 19 insertions(+)
  17
  18 --- a/include/linux/usb/phy.h
  19 +++ b/include/linux/usb/phy.h
  20 @@ -63,6 +63,13 @@ enum usb_otg_state {
  21         OTG_STATE_A_VBUS_ERR,
  22  };
  23
  24 +/* The usb role of phy to be working with */
  25 +enum usb_current_mode {
  26 +       CUR_USB_MODE_NONE,
  27 +       CUR_USB_MODE_HOST,
  28 +       CUR_USB_MODE_DEVICE,
  29 +};
  30 +
  31  struct usb_phy;
  32  struct usb_otg;
  33
  34 @@ -161,6 +168,9 @@ struct usb_phy {
  35         int     (*notify_resume)(struct usb_phy *x,
  36                         enum usb_device_speed speed);
  37
  38 +       int     (*set_mode)(struct usb_phy *x,
  39 +                       enum usb_current_mode mode);
  40 +
  41  };
  42
  43  /* for board-specific init logic */
  44 @@ -219,6 +229,15 @@ usb_phy_vbus_off(struct usb_phy *x)
  45         return x->set_vbus(x, false);
  46  }
  47
  48 +static inline int
  49 +usb_phy_set_mode(struct usb_phy *x, enum usb_current_mode mode)
  50 +{
  51 +       if (!x || !x->set_mode)
  52 +               return 0;
  53 +
  54 +       return x->set_mode(x, mode);
  55 +}
  56 +
  57  /* for usb host and peripheral controller drivers */
  58  #if IS_ENABLED(CONFIG_USB_PHY)
  59  extern struct usb_phy *usb_get_phy(enum usb_phy_type type);