[PATCH linux-next v2 1/1] usb: gadget: udc: atmel: Update endpoint allocation scheme

Felipe Balbi balbi at kernel.org
Fri Jan 27 01:07:53 PST 2017


Nicolas Ferre <nicolas.ferre at atmel.com> writes:

> Le 23/01/2017 à 15:45, cristian.birsan at microchip.com a écrit :
>> From: Cristian Birsan <cristian.birsan at microchip.com>
>> 
>> Update atmel udc driver with a new enpoint allocation scheme. The data
>> sheet requires that all endpoints are allocated in order.
>
> Pieces of information from the cover letter could have been added here.

yup, that's what I did:

commit 741d2558bf0aa8da9c0834ad43e1b9a1b16aa515
Author: Cristian Birsan <cristian.birsan at microchip.com>
Date:   Mon Jan 23 16:45:59 2017 +0200

    usb: gadget: udc: atmel: Update endpoint allocation scheme
    
    This patch updates the usb endpoint allocation scheme for atmel usba
    driver to make sure all endpoints are allocated in order. This
    requirement comes from the datasheet of the controller.
    
    The allocation scheme is decided by fifo_mode parameter. For fifo_mode =
    0 the driver tries to autoconfigure the endpoints fifo size. All other
    modes contain fixed configurations optimized for different purposes. The
    idea is somehow similar with the approach used on musb driver.
    
    Signed-off-by: Cristian Birsan <cristian.birsan at microchip.com>
    Signed-off-by: Felipe Balbi <felipe.balbi at linux.intel.com>

But seems like we will need a fixup patch during v4.11-rc?

-- 
balbi
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