diff options
| -rw-r--r-- | arch/arm/mach-omap2/clockdomain.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/clockdomain.h | 12 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap_hwmod.c | 16 |
3 files changed, 24 insertions, 8 deletions
diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c index 58e42f76603f..2b4ab0beff48 100644 --- a/arch/arm/mach-omap2/clockdomain.c +++ b/arch/arm/mach-omap2/clockdomain.c @@ -181,7 +181,7 @@ static void _clkdm_add_autodeps(struct clockdomain *clkdm) { struct clkdm_autodep *autodep; - if (!autodeps) + if (!autodeps || clkdm->flags & CLKDM_NO_AUTODEPS) return; for (autodep = autodeps; autodep->clkdm.ptr; autodep++) { @@ -215,7 +215,7 @@ static void _clkdm_del_autodeps(struct clockdomain *clkdm) { struct clkdm_autodep *autodep; - if (!autodeps) + if (!autodeps || clkdm->flags & CLKDM_NO_AUTODEPS) return; for (autodep = autodeps; autodep->clkdm.ptr; autodep++) { diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h index 9b459c26fb85..5add07169431 100644 --- a/arch/arm/mach-omap2/clockdomain.h +++ b/arch/arm/mach-omap2/clockdomain.h @@ -4,7 +4,7 @@ * OMAP2/3 clockdomain framework functions * * Copyright (C) 2008 Texas Instruments, Inc. - * Copyright (C) 2008-2010 Nokia Corporation + * Copyright (C) 2008-2011 Nokia Corporation * * Paul Walmsley * @@ -22,11 +22,19 @@ #include <plat/clock.h> #include <plat/cpu.h> -/* Clockdomain capability flags */ +/* + * Clockdomain flags + * + * XXX Document CLKDM_CAN_* flags + * + * CLKDM_NO_AUTODEPS: Prevent "autodeps" from being added/removed from this + * clockdomain. (Currently, this applies to OMAP3 clockdomains only.) + */ #define CLKDM_CAN_FORCE_SLEEP (1 << 0) #define CLKDM_CAN_FORCE_WAKEUP (1 << 1) #define CLKDM_CAN_ENABLE_AUTO (1 << 2) #define CLKDM_CAN_DISABLE_AUTO (1 << 3) +#define CLKDM_NO_AUTODEPS (1 << 4) #define CLKDM_CAN_HWSUP (CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_DISABLE_AUTO) #define CLKDM_CAN_SWSUP (CLKDM_CAN_FORCE_SLEEP | CLKDM_CAN_FORCE_WAKEUP) diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index a68a2cf1be34..2dd1ea9859bc 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -460,14 +460,18 @@ static int _disable_wakeup(struct omap_hwmod *oh, u32 *v) * will be accessed by a particular initiator (e.g., if a module will * be accessed by the IVA, there should be a sleepdep between the IVA * initiator and the module). Only applies to modules in smart-idle - * mode. Returns -EINVAL upon error or passes along - * clkdm_add_sleepdep() value upon success. + * mode. If the clockdomain is marked as not needing autodeps, return + * 0 without doing anything. Otherwise, returns -EINVAL upon error or + * passes along clkdm_add_sleepdep() value upon success. */ static int _add_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh) { if (!oh->_clk) return -EINVAL; + if (oh->_clk->clkdm && oh->_clk->clkdm->flags & CLKDM_NO_AUTODEPS) + return 0; + return clkdm_add_sleepdep(oh->_clk->clkdm, init_oh->_clk->clkdm); } @@ -480,14 +484,18 @@ static int _add_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh) * be accessed by a particular initiator (e.g., if a module will not * be accessed by the IVA, there should be no sleepdep between the IVA * initiator and the module). Only applies to modules in smart-idle - * mode. Returns -EINVAL upon error or passes along - * clkdm_del_sleepdep() value upon success. + * mode. If the clockdomain is marked as not needing autodeps, return + * 0 without doing anything. Returns -EINVAL upon error or passes + * along clkdm_del_sleepdep() value upon success. */ static int _del_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh) { if (!oh->_clk) return -EINVAL; + if (oh->_clk->clkdm && oh->_clk->clkdm->flags & CLKDM_NO_AUTODEPS) + return 0; + return clkdm_del_sleepdep(oh->_clk->clkdm, init_oh->_clk->clkdm); } |