From 867d320b6c30d2478358eafeca0e1a6c60cf06c3 Mon Sep 17 00:00:00 2001 From: Kalle Jokiniemi Date: Thu, 23 Apr 2009 13:58:51 +0300 Subject: PM: Disable usb host HW save and restore The hardware SAVEANDRESTORE mechanism seems to leave USB HOST power domain permanently into active state after one transition from off to active state. Disabling for now. Signed-off-by: Kalle Jokiniemi Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/powerdomains34xx.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/powerdomains34xx.h b/arch/arm/mach-omap2/powerdomains34xx.h index f70eb2da17e..fd09b0827df 100644 --- a/arch/arm/mach-omap2/powerdomains34xx.h +++ b/arch/arm/mach-omap2/powerdomains34xx.h @@ -338,7 +338,13 @@ static struct powerdomain usbhost_pwrdm = { .sleepdep_srcs = dss_per_usbhost_sleepdeps, .pwrsts = PWRSTS_OFF_RET_ON, .pwrsts_logic_ret = PWRDM_POWER_RET, - .flags = PWRDM_HAS_HDWR_SAR, /* for USBHOST ctrlr only */ + /* + * REVISIT: Enabling usb host save and restore mechanism seems to + * leave the usb host domain permanently in ACTIVE mode after + * changing the usb host power domain state from OFF to active once. + * Disabling for now. + */ + /*.flags = PWRDM_HAS_HDWR_SAR,*/ /* for USBHOST ctrlr only */ .banks = 1, .pwrsts_mem_ret = { [0] = PWRDM_POWER_RET, /* MEMRETSTATE */ -- cgit v1.2.3