Re: [PATCH 1/3] usb: renesas_usbhs: Allow an OTG PHY driver to provide VBUS

[Sergei Shtylyov]

Hello.

On 06/22/2015 05:42 PM, Phil Edworthy wrote:

These changes allow a PHY driver to trigger a VBUS interrupt and
to provide the value of VBUS.

Signed-off-by: Phil Edworthy <phil.edwor...@renesas.com>
---
  drivers/usb/renesas_usbhs/common.h     |  2 ++
  drivers/usb/renesas_usbhs/mod.c        |  3 +++
  drivers/usb/renesas_usbhs/mod_gadget.c | 38 ++++++++++++++++++++++++++++++++++
  3 files changed, 43 insertions(+)

diff --git a/drivers/usb/renesas_usbhs/common.h 
b/drivers/usb/renesas_usbhs/common.h
index 8c5fc12..94a7aeb 100644
--- a/drivers/usb/renesas_usbhs/common.h
+++ b/drivers/usb/renesas_usbhs/common.h
@@ -255,6 +255,8 @@ struct usbhs_priv {
        struct renesas_usbhs_driver_param       dparam;

        struct delayed_work notify_hotplug_work;
+       int vbus_is_indirect;

   s/int/bool/.

+       int vbus_indirect_value;

   Likewise.

        struct platform_device *pdev;

        struct extcon_dev *edev;

[...]

diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c 
b/drivers/usb/renesas_usbhs/mod_gadget.c
index dc2aa32..2cfdb50 100644
--- a/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c

[...]

@@ -891,6 +895,17 @@ static int usbhsg_gadget_start(struct usb_gadget *gadget,
        /* first hook up the driver ... */
        gpriv->driver = driver;

+       /* connect to bus through transceiver */
+       if (!IS_ERR_OR_NULL(gpriv->transceiver)) {
+               ret = otg_set_peripheral(gpriv->transceiver->otg,
+                                       &gpriv->gadget);
+               if (ret) {
+                       dev_info(dev, "%s: can't bind to transceiver\n",

   dev_err().

[...]

@@ -994,6 +1028,10 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
                goto usbhs_mod_gadget_probe_err_gpriv;
        }

+       gpriv->transceiver = usb_get_phy(USB_PHY_TYPE_UNDEFINED);
+       dev_info(dev, "%s transceiver found\n",
+                gpriv->transceiver ? "" : "No");

        dev_info(dev, "%stransceiver found\n",
                 gpriv->transceiver ? "" : "no ");

WBR, Sergei

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