With commit bfd6d021 {ARM: OMAP3+: Implement timer workaround for errata
i103 and i767}, the sync and gptimer synchronization errata got fixed.Hence the l4_wakeup static dependency with MPU can can be removed now. Static dependency was one of the proposed workaround but from power savings perspective, it isn't an ideal workaround. Cc: Jon Hunter <[email protected]> Cc: Kevin Hilman <[email protected]> Signed-off-by: Santosh Shilimkar <[email protected]> --- arch/arm/mach-omap2/pm44xx.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c index a96ae57..1fd9662 100644 --- a/arch/arm/mach-omap2/pm44xx.c +++ b/arch/arm/mach-omap2/pm44xx.c @@ -133,7 +133,7 @@ static void omap_default_idle(void) int __init omap4_pm_init(void) { int ret; - struct clockdomain *emif_clkdm, *mpuss_clkdm, *l3_1_clkdm, *l4wkup; + struct clockdomain *emif_clkdm, *mpuss_clkdm, *l3_1_clkdm; struct clockdomain *ducati_clkdm, *l3_2_clkdm, *l4_per_clkdm; if (omap_rev() == OMAP4430_REV_ES1_0) { @@ -154,19 +154,14 @@ int __init omap4_pm_init(void) * MPUSS -> L4_PER/L3_* and DUCATI -> L3_* doesn't work as * expected. The hardware recommendation is to enable static * dependencies for these to avoid system lock ups or random crashes. - * The L4 wakeup depedency is added to workaround the OCP sync hardware - * BUG with 32K synctimer which lead to incorrect timer value read - * from the 32K counter. The BUG applies for GPTIMER1 and WDT2 which - * are part of L4 wakeup clockdomain. */ mpuss_clkdm = clkdm_lookup("mpuss_clkdm"); emif_clkdm = clkdm_lookup("l3_emif_clkdm"); l3_1_clkdm = clkdm_lookup("l3_1_clkdm"); l3_2_clkdm = clkdm_lookup("l3_2_clkdm"); l4_per_clkdm = clkdm_lookup("l4_per_clkdm"); - l4wkup = clkdm_lookup("l4_wkup_clkdm"); ducati_clkdm = clkdm_lookup("ducati_clkdm"); - if ((!mpuss_clkdm) || (!emif_clkdm) || (!l3_1_clkdm) || (!l4wkup) || + if ((!mpuss_clkdm) || (!emif_clkdm) || (!l3_1_clkdm) || (!l3_2_clkdm) || (!ducati_clkdm) || (!l4_per_clkdm)) goto err2; @@ -174,7 +169,6 @@ int __init omap4_pm_init(void) ret |= clkdm_add_wkdep(mpuss_clkdm, l3_1_clkdm); ret |= clkdm_add_wkdep(mpuss_clkdm, l3_2_clkdm); ret |= clkdm_add_wkdep(mpuss_clkdm, l4_per_clkdm); - ret |= clkdm_add_wkdep(mpuss_clkdm, l4wkup); ret |= clkdm_add_wkdep(ducati_clkdm, l3_1_clkdm); ret |= clkdm_add_wkdep(ducati_clkdm, l3_2_clkdm); if (ret) { -- 1.7.9.5 -- 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
