linux-kernel - Re: [PATCH 06/06] serial8250-em: Add Emma Mobile UART driver

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Date:	Wed, 2 May 2012 14:22:05 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	Paul Gortmaker <paul.gortmaker@...driver.com>
Cc:	Magnus Damm <magnus.damm@...il.com>, linux-serial@...r.kernel.org,
	horms@...ge.net.au, arnd@...db.de, linux-sh@...r.kernel.org,
	swarren@...dotorg.org, linux-kernel@...r.kernel.org, rjw@...k.pl,
	lethal@...ux-sh.org, olof@...om.net, dan.j.williams@...el.com,
	alan@...ux.intel.com
Subject: Re: [PATCH 06/06] serial8250-em: Add Emma Mobile UART driver

On Wed, May 02, 2012 at 10:41:12AM -0400, Paul Gortmaker wrote:
> On 12-05-02 08:47 AM, Magnus Damm wrote:
> > From: Magnus Damm <damm@...nsource.se>
> > 
> > Add a platform driver for Emma Mobile 8250 hardware.
> 
> 
> [...]
> 
> > +
> > +config SERIAL_8250_EM
> > +	tristate "Support for Emma Mobile intergrated serial port"
> > +	depends on SERIAL_8250
> 
> Should we depend on arch=ARM or something similar?  Even if the
> driver is written to be arch independent, if the Emma itself is
> physically tied to ARM platforms, we probably don't need to be
> building it for sparc allyesconfig etc.

Yeah, it doesn't build on x86-64, I get the following build problems:
	ERROR: "clk_get_rate" [drivers/tty/serial/8250/8250_em.ko] undefined!
	ERROR: "clk_enable" [drivers/tty/serial/8250/8250_em.ko] undefined!
	ERROR: "clk_get" [drivers/tty/serial/8250/8250_em.ko] undefined!
	ERROR: "clk_put" [drivers/tty/serial/8250/8250_em.ko] undefined!
	ERROR: "clk_disable" [drivers/tty/serial/8250/8250_em.ko] undefined!

So it should depend on some arch that has clk at the least.

Magnus, care to redo just this one patch that fixes this up?  I've
applied the first 5 already.

thanks,

greg k-h
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