diff options
| author | Santosh Shilimkar <santosh.shilimkar@ti.com> | 2013-02-16 16:25:08 +0400 |
|---|---|---|
| committer | Santosh Shilimkar <santosh.shilimkar@ti.com> | 2013-03-28 11:25:59 +0400 |
| commit | 6cf38956c9838414b2678c7e661001313d200d8c (patch) | |
| tree | 156524286066eceaf0b23196c437ddb0f4e7bdba /arch/arm/mach-omap2 | |
| parent | b699ddd19bf3542d43ffe293c6148161e160b1bc (diff) | |
| download | linux-6cf38956c9838414b2678c7e661001313d200d8c.tar.xz | |
ARM: OMAP4: PM: Remove L4 wakeup depedency with MPU since errata fix exist now
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.
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Diffstat (limited to 'arch/arm/mach-omap2')
| -rw-r--r-- | arch/arm/mach-omap2/pm44xx.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c index 9e9095c65129..3b5a5a832824 100644 --- a/arch/arm/mach-omap2/pm44xx.c +++ b/arch/arm/mach-omap2/pm44xx.c @@ -143,7 +143,7 @@ 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) { @@ -171,19 +171,14 @@ 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; @@ -191,7 +186,6 @@ 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) { |