Re: [PATCH] Adding usb gadget support

[Michael Bohan <mbohan@codeaurora.org>]

On 7/16/2010 12:33 AM, David Lanzendörfer wrote:
> Also here we are using phy_reset
> https://www.codeaurora.org/gitweb/quic/la/?p=kernel/msm.git;a=blob;f=drivers/usb/gadget/msm72k_udc.c;h=f3669507bcd929b043e573d08e600171cc0c87de;hb=refs/heads/aosp/android-msm-2.6.32
>
> Its needed for cable plug/unplug event recognition as it looks like.
> So we realy seem to need phy_reset.
> In the android branch phy_reset() was declared inside a second devices.c file called
> devices_htc.c
> I considered it a bit confusing, and I'm not sure, where to actually introduce it now.
> Could QuIC take a look please?

Look at the file you mentioned for an example of how to connect the phy 
reset function:

https://www.codeaurora.org/gitweb/quic/la/?p=kernel/msm.git;a=blob;f=arch/arm/mach-msm/devices_htc.c;h=e5f65e720656db1e0349e2d981e50f514eac8f2f;hb=refs/heads/aosp/android-msm-2.6.32

You just need to:

1. Make an instance of the msm_hsusb_platform_data.
2. Assign the 'phy_reset' pointer to your added function.
3. Assign that msm_device_hsusb platform_data to your pdata struct.
4. Register the platform device.

Michael

-- 
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum