[U-Boot] [u-boot 14/40] usb: dwc3: linux-compat: Add header for dwc3 linux compatibiltiy

[Lukasz Majewski]

Hi Marek,

> On Wednesday, February 25, 2015 at 09:17:53 AM, Lukasz Majewski wrote:
> > Hi Marek,
> > 
> > > On Tuesday, February 24, 2015 at 02:21:40 PM, Kishon Vijay
> > > Abraham I
> > > 
> > > wrote:
> > > > Hi,
> > > > 
> > > > On Monday 23 February 2015 08:29 PM, Marek Vasut wrote:
> > > > > On Monday, February 23, 2015 at 07:19:03 AM, Kishon Vijay
> > > > > Abraham
> > > > > 
> > > > > I wrote:
> > > > >> Hi,
> > > > >> 
> > > > >> On Monday 16 February 2015 04:02 PM, Lukasz Majewski wrote:
> > > > >>> Hi Kishon, Marek
> > > > >>> 
> > > > >>>> Added a header file to include various linux specific APIs
> > > > >>>> like pr_debug, WARN_ WARN_ON_ONCE etc.. in order to avoid
> > > > >>>> compilation error while building dwc3 driver.
> > > > >>>> 
> > > > >>>> Signed-off-by: Kishon Vijay Abraham I <kishon at ti.com>
> > > > >>>> ---
> > > > >>>> 
> > > > >>>>    drivers/usb/dwc3/linux-compat.h |   30
> > > > >>>>    ++++++++++++++++++++++++++++++ 1 file changed, 30
> > > > >>>> 
> > > > >>>> insertions(+) create mode 100644
> > > > >>>> drivers/usb/dwc3/linux-compat.h
> > > > >>>> 
> > > > >>>> diff --git a/drivers/usb/dwc3/linux-compat.h
> > > > >>>> b/drivers/usb/dwc3/linux-compat.h new file mode 100644
> > > > >>>> index 0000000..58c4716
> > > > >>>> --- /dev/null
> > > > >>>> +++ b/drivers/usb/dwc3/linux-compat.h
> > > > >>>> @@ -0,0 +1,30 @@
> > > > >>>> +/**
> > > > >>>> + * linux-compat.h - DesignWare USB3 Linux Compatibiltiy
> > > > >>>> Adapter Header
> > > > >>>> + *
> > > > >>>> + * Copyright (C) 2015 Texas Instruments Incorporated -
> > > > >>>> http://www.ti.com
> > > > >>>> + *
> > > > >>>> + * Authors: Kishon Vijay Abraham I <kishon at ti.com>
> > > > >>>> + *
> > > > >>>> + * Taken from Linux Kernel v3.16 (drivers/usb/dwc3/core.c)
> > > > >>>> and ported
> > > > >>>> + * to uboot.
> > > > >>>> + *
> > > > >>>> + * SPDX-License-Identifier:	GPL-2.0
> > > > >>>> + *
> > > > >>>> + */
> > > > >>>> +
> > > > >>>> +#ifndef __DWC3_LINUX_COMPAT__
> > > > >>>> +#define __DWC3_LINUX_COMPAT__
> > > > >>>> +
> > > > >>>> +#define pr_debug(format)                debug(format)
> > > > >>>> +#define WARN(val, format, arg...)	debug(format,
> > > > >>>> ##arg) +#define WARN_ON_ONCE(val)
> > > > >>>> debug("Error %d\n", val) +
> > > > >>>> +#define BUILD_BUG_ON_NOT_POWER_OF_2(n)
> > > > >>>> +
> > > > >>>> +static inline size_t strlcat(char *dest, const char *src,
> > > > >>>> size_t n) +{
> > > > >>>> +	strcat(dest, src);
> > > > >>>> +	return strlen(dest) + strlen(src);
> > > > >>>> +}
> > > > >>>> +
> > > > >>>> +#endif
> > > > >>> 
> > > > >>> Similar file has been already added to u-boot.
> > > > >>> Please look into ./drivers/usb/musb-new/linux-compat.h
> > > > >>> 
> > > > >>> @Marek - maybe it is time to have a common one?
> > > > >> 
> > > > >> Can we do this separately?
> > > > > 
> > > > > Would it be too much of a hassle to make a common one please ?
> > > > 
> > > > Okay. I sent a new patch which should be applied on top of my v2
> > > > that removes creating a new linux compatibility header file for
> > > > dwc3.
> > > 
> > > Well you know that such patch should really go in first, right ?
> > > But it's pretty pointless to push you to rework the entire thing
> > > I'd say, so let's just apply all this stuff as is. Lukasz, do you
> > > plan to pick it all up?
> > 
> > It thought that it would be directly taken to -usb tree.
> 
> Oh, oops, right. You're OK with the patchset as-is, right ?

I have no objections to version 2 of this patch. Feel free to apply it
to -usb tree.

-- 
Best regards,

Lukasz Majewski

Samsung R&D Institute Poland (SRPOL) | Linux Platform Group