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imx233: Implement mutex for cpu_boost_lock/unlock

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Playing AAC-HE files resulted in a race condition between
audio/codec/buffering for set_cpu_frequency

Change-Id: I35e1c1fd18db623e2990c305acdca03f57184d0d
This commit is contained in:
William Wilgus 2017-10-13 06:28:50 +02:00 • committed by Amaury Pouly
parent 428464774f
commit b2c470719a
2 changed files with 34 additions and 0 deletions
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17
firmware/target/arm/imx233/system-target.h
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@ -54,6 +54,23 @@ bool imx233_us_elapsed(uint32_t ref, unsigned us_delay);
void imx233_reset_block(volatile uint32_t *block_reg);
void imx233_enable_usb_controller(bool enable);
void imx233_enable_usb_phy(bool enable);
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
#define CPU_BOOST_LOCK_DEFINED
static inline bool cpu_boost_lock(void)
{
bool set_cpu_frequency__lock(void);
return set_cpu_frequency__lock();
}
static inline void cpu_boost_unlock(void)
{
void set_cpu_frequency__unlock(void);
set_cpu_frequency__unlock();
}
#endif /* HAVE_ADJUSTABLE_CPU_FREQ */
// NOTE: this is available even if HAVE_ADJUSTABLE_CPU_FREQ is undef
void imx233_set_cpu_frequency(long frequency);