imx: re-work of PWM, add i.MX21 support

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* Kconfig enables now HAVE_PWM (this enables in turn the selection of
  CONFIG_BACKLIGHT_PWM)
* changes CONFIG_ARCH_MXyy to CONFIG_MACH_MXyy
* fix some register names to match those of the reference manual
* write a stub code so that the PWM can be used to program the
  LCD backlight
* convert from #ifdef CONFIG_ARCH_MXxx to cpu_is_mxXX()
* remove unneeded defines and fix 80-column "violations" of checkpatch.pl

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

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Holger Schurig 2009-04-14 12:50:20 +02:00 • committed by Sascha Hauer

parent 6b91edde09

commit c010dba89b

2 changed files with 63 additions and 82 deletions

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arch/arm/plat-mxc/Kconfig

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124

arch/arm/plat-mxc/pwm.c

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