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| author | Cousson Benoit <b-cousson@ti.com> | 2011-07-01 11:01:30 -0700 |
|---|---|---|
| committer | Nishanth Menon <nm@ti.com> | 2011-07-06 21:37:15 -0700 |
| commit | 4607fb917c9c1c6a5a4534b0ce4d58d2261c5eb5 (patch) | |
| tree | e8bfcb1e9eb8d7630e9e42a69978566fe90b7949 | |
| parent | c3f37a354e4980120a093c8938f5464c71c713ea (diff) | |
| download | kernel_samsung_tuna-4607fb917c9c1c6a5a4534b0ce4d58d2261c5eb5.zip kernel_samsung_tuna-4607fb917c9c1c6a5a4534b0ce4d58d2261c5eb5.tar.gz kernel_samsung_tuna-4607fb917c9c1c6a5a4534b0ce4d58d2261c5eb5.tar.bz2 | |
OMAP2+: hwmod: Fix smart-standby + wakeup support
The commit 86009eb326afde34ffdc5648cd344aa86b8d58d4 was adding the wakeup
support for new OMAP4 IPs. This support is incomplete for busmaster IPs
that need as well to use smart-standby with wakeup.
This new standbymode is suported on HSI and USB_HOST_FS for the moment.
Add the new MSTANDBY_SMART_WKUP flag to mark the IPs that support this
capability.
Enable this new mode when applicable in _enable_wakeup, _disable_wakeup,
_enable_sysc and _idle_sysc.
The omap_hwmod_44xx_data.c will have to be updated to add this new flag.
Acked-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Djamil Elaidi <d-elaidi@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
| -rw-r--r-- | arch/arm/mach-omap2/omap_hwmod.c | 34 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/omap_hwmod.h | 2 |
2 files changed, 29 insertions, 7 deletions
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 94573ef..6f0b56a 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -391,7 +391,8 @@ static int _enable_wakeup(struct omap_hwmod *oh, u32 *v) if (!oh->class->sysc || !((oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP) || - (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP))) + (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP) || + (oh->class->sysc->idlemodes & MSTANDBY_SMART_WKUP))) return -EINVAL; if (!oh->class->sysc->sysc_fields) { @@ -406,6 +407,8 @@ static int _enable_wakeup(struct omap_hwmod *oh, u32 *v) if (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP) _set_slave_idlemode(oh, HWMOD_IDLEMODE_SMART_WKUP, v); + if (oh->class->sysc->idlemodes & MSTANDBY_SMART_WKUP) + _set_master_standbymode(oh, HWMOD_IDLEMODE_SMART_WKUP, v); /* XXX test pwrdm_get_wken for this hwmod's subsystem */ @@ -427,7 +430,8 @@ static int _disable_wakeup(struct omap_hwmod *oh, u32 *v) if (!oh->class->sysc || !((oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP) || - (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP))) + (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP) || + (oh->class->sysc->idlemodes & MSTANDBY_SMART_WKUP))) return -EINVAL; if (!oh->class->sysc->sysc_fields) { @@ -442,6 +446,8 @@ static int _disable_wakeup(struct omap_hwmod *oh, u32 *v) if (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP) _set_slave_idlemode(oh, HWMOD_IDLEMODE_SMART, v); + if (oh->class->sysc->idlemodes & MSTANDBY_SMART_WKUP) + _set_master_standbymode(oh, HWMOD_IDLEMODE_SMART_WKUP, v); /* XXX test pwrdm_get_wken for this hwmod's subsystem */ @@ -783,8 +789,16 @@ static void _enable_sysc(struct omap_hwmod *oh) } if (sf & SYSC_HAS_MIDLEMODE) { - idlemode = (oh->flags & HWMOD_SWSUP_MSTANDBY) ? - HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART; + if (oh->flags & HWMOD_SWSUP_MSTANDBY) { + idlemode = HWMOD_IDLEMODE_NO; + } else { + if (sf & SYSC_HAS_ENAWAKEUP) + _enable_wakeup(oh, &v); + if (oh->class->sysc->idlemodes & MSTANDBY_SMART_WKUP) + idlemode = HWMOD_IDLEMODE_SMART_WKUP; + else + idlemode = HWMOD_IDLEMODE_SMART; + } _set_master_standbymode(oh, idlemode, &v); } @@ -842,8 +856,16 @@ static void _idle_sysc(struct omap_hwmod *oh) } if (sf & SYSC_HAS_MIDLEMODE) { - idlemode = (oh->flags & HWMOD_SWSUP_MSTANDBY) ? - HWMOD_IDLEMODE_FORCE : HWMOD_IDLEMODE_SMART; + if (oh->flags & HWMOD_SWSUP_MSTANDBY) { + idlemode = HWMOD_IDLEMODE_FORCE; + } else { + if (sf & SYSC_HAS_ENAWAKEUP) + _enable_wakeup(oh, &v); + if (oh->class->sysc->idlemodes & MSTANDBY_SMART_WKUP) + idlemode = HWMOD_IDLEMODE_SMART_WKUP; + else + idlemode = HWMOD_IDLEMODE_SMART; + } _set_master_standbymode(oh, idlemode, &v); } diff --git a/arch/arm/plat-omap/include/plat/omap_hwmod.h b/arch/arm/plat-omap/include/plat/omap_hwmod.h index a74663a..654b028 100644 --- a/arch/arm/plat-omap/include/plat/omap_hwmod.h +++ b/arch/arm/plat-omap/include/plat/omap_hwmod.h @@ -77,7 +77,6 @@ extern struct omap_hwmod_sysc_fields omap_hwmod_sysc_type2; #define HWMOD_IDLEMODE_FORCE (1 << 0) #define HWMOD_IDLEMODE_NO (1 << 1) #define HWMOD_IDLEMODE_SMART (1 << 2) -/* Slave idle mode flag only */ #define HWMOD_IDLEMODE_SMART_WKUP (1 << 3) /** @@ -258,6 +257,7 @@ struct omap_hwmod_ocp_if { #define MSTANDBY_FORCE (HWMOD_IDLEMODE_FORCE << MASTER_STANDBY_SHIFT) #define MSTANDBY_NO (HWMOD_IDLEMODE_NO << MASTER_STANDBY_SHIFT) #define MSTANDBY_SMART (HWMOD_IDLEMODE_SMART << MASTER_STANDBY_SHIFT) +#define MSTANDBY_SMART_WKUP (HWMOD_IDLEMODE_SMART_WKUP << MASTER_STANDBY_SHIFT) /* omap_hwmod_sysconfig.sysc_flags capability flags */ #define SYSC_HAS_AUTOIDLE (1 << 0) |