From: Felipe Contreras <[email protected]> Profiling showed the __delay function is called a lot; checking the mbox more often seems to decrease the usage by 2/3's according to OProfile.
The changes are based on 'arch/arm/plat-omap/mailbox.c'. Tested on OMAP3430. Signed-off-by: Felipe Contreras <[email protected]> --- drivers/dsp/bridge/wmd/tiomap_sm.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/dsp/bridge/wmd/tiomap_sm.c b/drivers/dsp/bridge/wmd/tiomap_sm.c index 4ad893b..03d9195 100644 --- a/drivers/dsp/bridge/wmd/tiomap_sm.c +++ b/drivers/dsp/bridge/wmd/tiomap_sm.c @@ -179,7 +179,7 @@ DSP_STATUS CHNLSM_InterruptDSP(struct WMD_DEV_CONTEXT *hDevContext) #endif HW_STATUS hwStatus; struct CFG_HOSTRES resources; - u16 cnt = 10; + u16 cnt = 1000; u32 temp; /* We are waiting indefinitely here. This needs to be fixed in the * second phase */ @@ -222,7 +222,7 @@ DSP_STATUS CHNLSM_InterruptDSP(struct WMD_DEV_CONTEXT *hDevContext) while (--cnt) { if (!fifo_full((void __iomem *) resources.dwMboxBase, 0)) break; - mdelay(1); + udelay(1); } if (!cnt) { DBG_Trace(DBG_LEVEL7, "Timed out waiting for DSP mailbox \n"); -- 1.6.1.3 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
