From 570b54c7fae65b65320d5a7d4b2249c86eeaa497 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Thu, 10 Mar 2011 03:50:09 -0700 Subject: OMAP2+: clockdomain: add flag that will block autodeps from being added for a clockdomain Add a new clockdomain flag, CLKDM_NO_AUTODEPS, which, when marked on a clockdomain, will prevent "autodeps" from being associated with the clockdomain. ("Autodeps" are sleep dependencies and wakeup dependencies from/to processor modules that are automatically added to a clockdomain when it is in hardware-supervised idle mode. They are deprecated -- a relic from the old CDP trees -- but are still in use for OMAP3.) Also, prevent the hwmod code from adding or removing initiator dependencies for clockdomains with this flag set. This patch should allow others to test which clockdomains actually still need autodeps. Thanks to Kevin Hilman for noting that the original version should also modify the hwmod code. Signed-off-by: Paul Walmsley Cc: Kevin Hilman --- arch/arm/mach-omap2/clockdomain.h | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) (limited to 'arch/arm/mach-omap2/clockdomain.h') 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 #include -/* 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) -- cgit v1.2.2