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The S3C64XX timer is running at the wrong rate due to the
assumptions made in the timer initialisation about the way
the pwm dividers work. This means that time on the S3C64XX
runs twice as fast as it should.
Fix the problem by moving to using the clk framework to setup
the pwm timer clock muxes, as the pwm-clock code has all the
necessary knowledge of how the timer clock inputs are routed.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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The S3C64XX series has a new TCFG divider setting to allow the clock
directly through, which means that we need to update the pwm-clock
code to cope with this.
Add <mach/pwm-clock.h> containing the specific code to deal with the
TCFG divider settings and provide any other per-arch data that the
pwm-clock driver needs to function.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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The pwm-clock.c needs <mach/map.h> which is included
via other means on S3C24XX systems, so ensure it is
explicitly included.
Remove the includes of regs-clock.h and regs-gpio.h as
these are not needed by the build.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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The pwm-scaler0 and pwm-scaler1 clocks have their
.id field set to -1 as they are not referenced to
any specific device. However, parts of the pwm-clock
code used the .id field to identify which scaler
clock was being used.
Fix the problem by comparing against the pointer to
the clock to identify the scalers.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Add the set_rate and round_rate methods for the pwm-scaler
clock for use with the time code.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Move pwm-clock.c to arch/arm/plat-s3c
to be shared with the S3C64XX implementations.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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