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

[Marek Vasut <marex@denx.de>]

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@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@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?