Messages in this thread Patch in this message | | | Subject | RE: [PATCH 1/1] Kernel compile bug in 2.6.22.6/7 {maybe more} ARM/StrongARM | Date | Tue, 25 Sep 2007 12:31:38 -0500 | From | <> |
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Well then, now I guess I know why the FB isn't working... Sorry to open up the can of worms this turned out to be {after reading all the other replies first}...
-----Original Message----- From: Russell King [mailto:rmk@arm.linux.org.uk] On Behalf Of Russell King Sent: Tuesday, September 25, 2007 2:32 AM To: Chandler, Greg; cpufreq@lists.linux.org.uk; davej@redhat.com Cc: linux-kernel@vger.kernel.org; dan.j.williams@intel.com Subject: Re: [PATCH 1/1] Kernel compile bug in 2.6.22.6/7 {maybe more} ARM/StrongARM
On Mon, Sep 24, 2007 at 05:53:57PM -0500, Greg.Chandler@wellsfargo.com wrote: > I was building a kernel for an iPaq {SA1110} and ran into this. > > linux-2.6.22.7/arch/arm/mach-sa1100/generic.c: > Has a: #include <linux/cpufreq.h> > Then afterwards there is a: #if defined(CONFIG_CPU_FREQ_SA1100) || > defined(CONFIG_CPU_FREQ_SA1110) > who's else section redefines the cpufreq_get function inhereited from > the header.... > > I'm guessing no one ever ended up in the "else" section until now, and
> that the header was added some time ago and no one caught this. > This patch worked for me to get rid of the compile time problems. I'm
> having issues with the kernel, but as far as I can tell they are form > the Frame buffer and not because of this. If this assessment is > correct {the not needing this code anymore} then please pass this > along so it makes it into an upcoming release. > > --- linux-2.6.22.7/arch/arm/mach-sa1100/generic.c.orig 2007-09-24 > 17:36:21.000000000 -0500 > +++ linux-2.6.22.7/arch/arm/mach-sa1100/generic.c 2007-09-24 > 17:40:02.000000000 -0500 > @@ -107,15 +107,6 @@ unsigned int sa11x0_getspeed(unsigned in > return cclk_frequency_100khz[PPCR & 0xf] * 100; } > > -#else > -/* > - * We still need to provide this so building without cpufreq works. > - */ > -unsigned int cpufreq_get(unsigned int cpu) -{ > - return cclk_frequency_100khz[PPCR & 0xf] * 100; > -} > -EXPORT_SYMBOL(cpufreq_get); > #endif > > /*
No. That code is required - the StrongARM 1100 framebuffer driver *needs* to know what the CPU frequency is so it can set the pixel clock divisor.
The real problem is the silly people who added this to cpufreq.h:
#ifdef CONFIG_CPU_FREQ unsigned int cpufreq_quick_get(unsigned int cpu); unsigned int cpufreq_get(unsigned int cpu); #else static inline unsigned int cpufreq_quick_get(unsigned int cpu) { return 0; } static inline unsigned int cpufreq_get(unsigned int cpu) { return 0; } #endif
which utterly bogus.
-- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of:
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