From b6b27ae5e85fb193c08448157943b187958b8ca2 Mon Sep 17 00:00:00 2001 From: Andrew Victor Date: Thu, 31 May 2007 09:34:53 +0100 Subject: [PATCH] [ARM] 4419/1: AT91: SAM9 USB clocks check for suspending When suspending to slow-clock mode, at91_pm_verify_clocks() is called to ensure that all the clocks are disabled or in the correct state. This patch replaces the "#warning TODO" messages for the SAM9 processors with the correct code. Signed-off-by: Andrew Victor Signed-off-by: Russell King --- arch/arm/mach-at91/pm.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index ff8db29e989e..47ff676aca5f 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -76,12 +76,11 @@ static int at91_pm_verify_clocks(void) pr_debug("AT91: PM - Suspend-to-RAM with USB still active\n"); return 0; } - } else if (cpu_is_at91sam9260()) { -#warning "Check SAM9260 USB clocks" - } else if (cpu_is_at91sam9261()) { -#warning "Check SAM9261 USB clocks" - } else if (cpu_is_at91sam9263()) { -#warning "Check SAM9263 USB clocks" + } else if (cpu_is_at91sam9260() || cpu_is_at91sam9261() || cpu_is_at91sam9263()) { + if ((scsr & (AT91SAM926x_PMC_UHP | AT91SAM926x_PMC_UDP)) != 0) { + pr_debug("AT91: PM - Suspend-to-RAM with USB still active\n"); + return 0; + } } #ifdef CONFIG_AT91_PROGRAMMABLE_CLOCKS -- 2.20.1