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| author | Andrew Victor <andrew@sanpeople.com> | 2007-05-31 09:34:53 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-06-02 21:31:48 +0100 |
| commit | b6b27ae5e85fb193c08448157943b187958b8ca2 (patch) | |
| tree | 829fc6f5896c2b1e3f199bff3eac2927146b2346 /arch/arm/mach-at91/pm.c | |
| parent | 1f4b49a4293ea7b0adeaeae37207b9c9fd2dd7c2 (diff) | |
| download | blackbird-op-linux-b6b27ae5e85fb193c08448157943b187958b8ca2.tar.gz blackbird-op-linux-b6b27ae5e85fb193c08448157943b187958b8ca2.zip | |
[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 <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-at91/pm.c')
| -rw-r--r-- | arch/arm/mach-at91/pm.c | 11 |
1 files 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 |
