linux-kernel - Re: [PATCH] USB: musb: fix Blackfin building after power updates

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Date:	Sun, 23 May 2010 04:49:52 -0400
From:	Mike Frysinger <vapier.adi@...il.com>
To:	Sergei Shtylyov <sshtylyov@...sta.com>
Cc:	Ian Jeffray <ian@...fray.co.uk>, linux-usb@...r.kernel.org,
	Felipe Balbi <felipe.balbi@...ia.com>,
	Cliff Cai <cliff.cai@...log.com>,
	uclinux-dist-devel@...ckfin.uclinux.org, stable@...nel.org,
	stable-review@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] USB: musb: fix Blackfin building after power updates

On Sun, May 23, 2010 at 04:42, Sergei Shtylyov wrote:
> Mike Frysinger wrote:
>> The new MUSB power code needs musb_read_txhubport() to return a value (so
>> stub it as 0 like the other Blackfin hub funcs).  It also needs new helper
>> functions for saving/restoring context,
>
>   No, it doesn't. It was an erratic patch that caused these functions to be
> needed outside OMAPs. I've already submitted a patch fixing this, see:
>
> http://marc.info/?l=linux-usb&m=127427834925805

thanks ... i'll grab whatever gets merged and repost on top of that.

>> so change the apparently unused
>> musb_platform_{suspend,resume} to musb_platform_{save,restore}_context in
>> the Blackfin code.
>
>   I don't see where you're "changing" them -- and no wonder as I have
> deleted these two unused functions.

the patch was against 2.6.34, but when updating to latest git, the
related changes were dropped.  but git automerging doesnt fix
changelogs for you :p.
>>  -static inline void  musb_read_txhubport(void __iomem *mbase, u8 epnum)
>> +static inline u8 musb_read_txhubport(void __iomem *mbase, u8 epnum)
>>  {
>> +       return 0;
>>  }
>>  #endif /* CONFIG_BLACKFIN */
>
>   Besides, this actually should have been two patches...

it was addressing the same issue: new power code breaks on Blackfin systems
-mike
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