From c2ce5fb3f3f5f536182d485f103611adcf7d78cf Mon Sep 17 00:00:00 2001 From: Joel Fernandes Date: Tue, 18 Oct 2016 10:55:25 +0300 Subject: ARM: OMAP: DRA7xx: Make L4SEC clock domain SWSUP only Using HWSUP for l4sec clock domain is causing warnings in HWMOD code for DRA7. Based on some observations, once the clock domain goes into an IDLE state (because of no activity etc), the IDLEST for the module goes to '0x2' value which means Interface IDLE condition. So far so go, however once the MODULEMODE is set to disabled for the particular IP, the IDLEST for the module should go to '0x3', per the HW AUTO IDLE protocol. However this is not observed and there is no reason per the protocl for the transition to not happen. This could potentially be a bug in the HW AUTO state-machine. Work around for this is to use SWSUP only for the particular clockdomain. With this all the transitions of IDLEST happen correctly and warnings don't occur. Signed-off-by: Joel Fernandes Signed-off-by: Lokesh Vutla Signed-off-by: Tero Kristo Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/clockdomains7xx_data.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm/mach-omap2/clockdomains7xx_data.c') diff --git a/arch/arm/mach-omap2/clockdomains7xx_data.c b/arch/arm/mach-omap2/clockdomains7xx_data.c index ef9ed36e8a61..6c679659cda5 100644 --- a/arch/arm/mach-omap2/clockdomains7xx_data.c +++ b/arch/arm/mach-omap2/clockdomains7xx_data.c @@ -409,7 +409,7 @@ static struct clockdomain l4sec_7xx_clkdm = { .dep_bit = DRA7XX_L4SEC_STATDEP_SHIFT, .wkdep_srcs = l4sec_wkup_sleep_deps, .sleepdep_srcs = l4sec_wkup_sleep_deps, - .flags = CLKDM_CAN_HWSUP_SWSUP, + .flags = CLKDM_CAN_SWSUP, }; static struct clockdomain l3main1_7xx_clkdm = { -- cgit