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| author | Fabio Estevam <fabio.estevam@freescale.com> | 2012-01-27 12:44:29 -0200 |
|---|---|---|
| committer | Shawn Guo <shawn.guo@linaro.org> | 2012-01-31 22:42:15 +0800 |
| commit | 444a7c3bb897ec6a64b83d277102440c1dcc22a1 (patch) | |
| tree | f6168d81c13b5e7641ca815bd5703fdee3adc5f5 /arch/arm/mach-mxs/include/mach/common.h | |
| parent | a62407256bbcba8e3f62695a87534050ceec0e6f (diff) | |
| download | linux-444a7c3bb897ec6a64b83d277102440c1dcc22a1.tar.gz linux-444a7c3bb897ec6a64b83d277102440c1dcc22a1.tar.bz2 linux-444a7c3bb897ec6a64b83d277102440c1dcc22a1.zip | |
ARM: mxs: Use a proper timeout mechanism
Introduce a function for checking the busy bits of CLKCTRL register that
uses a proper timeout mechanism.
Remove parts of code that use busy loops and replace them with the
mxs_clkctrl_timeout() function.
Tested on a mx28evk by performing audio playback.
Suggested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Diffstat (limited to 'arch/arm/mach-mxs/include/mach/common.h')
| -rw-r--r-- | arch/arm/mach-mxs/include/mach/common.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/mach-mxs/include/mach/common.h b/arch/arm/mach-mxs/include/mach/common.h index e1237ab25862..c50c3ea28a9d 100644 --- a/arch/arm/mach-mxs/include/mach/common.h +++ b/arch/arm/mach-mxs/include/mach/common.h @@ -31,4 +31,6 @@ extern void mx28_init_irq(void); extern void icoll_init_irq(void); +extern int mxs_clkctrl_timeout(unsigned int reg_offset, unsigned int mask); + #endif /* __MACH_MXS_COMMON_H__ */ |