[PATCH 0/5] arm: sa1100: fix sa1100 fb and pcmcia w/o cpufreq

Dmitry Eremin-Solenikov dbaryshkov at gmail.com
Wed Oct 29 11:41:01 PDT 2014

2014-10-24 13:37 GMT+03:00 Dmitry Eremin-Solenikov <dbaryshkov at gmail.com>:
> Hello,
> These patches were sitting in my queue for some time. On SA-1100
> framebuffer and PCMCIA drivers make use of cpufreq_get(0) function call
> to determine the cpu frequency. Russell's commit
> 1937f5b91833e2e8e53bcc821fc7a5fbe6ccb9b5 (ARM: fix sa1100 build) fixed
> the build issues, but broke two devices (Collie and Jornada720). For
> those two boards the cpufreq code gets compiled but is not enabled (as
> board files do not provide timing information for the CPUFREQ driver).
> Thus cpufreq_get(0) returns incorrect values and incorrect timings get
> programmed into the hardware.
> PXA2xx (the very similar platform) uses Clock API to determine CPU
> frequency both in framebuffer and PCMCIA drivers. These patches make
> similar changes to StrongARM drivers.
> These patches are required to make use of framebuffer and CF card on
> Sharp Collie (and possibly on HP Jornada 720).

Russell, what about these patches?
They are absolutely required for Collie to work properly.

With best wishes

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