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author | Arnd Bergmann <arnd@arndb.de> | 2011-11-23 20:47:41 +0000 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2011-11-23 20:47:41 +0000 |
commit | 58a273745fbb2fbd01d26e7a60f0acc8c1d99469 (patch) | |
tree | bc16200f3b6ea150b298422754e32959eaa339bc /arch/arm/mach-omap2/powerdomain.c | |
parent | 951c486f62490e032da0ad17e93270b0cfb6687f (diff) | |
parent | 0116da4fcc1ae8a80d9002441e98768f2a6fa2fe (diff) |
Merge branches 'drivers/macb-gem' and 'drivers/pxa-gpio' into next/drivers
Diffstat (limited to 'arch/arm/mach-omap2/powerdomain.c')
-rw-r--r-- | arch/arm/mach-omap2/powerdomain.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c index 5164d587ef5..8a18d1bd61c 100644 --- a/arch/arm/mach-omap2/powerdomain.c +++ b/arch/arm/mach-omap2/powerdomain.c @@ -1002,16 +1002,16 @@ int pwrdm_post_transition(void) * @pwrdm: struct powerdomain * to wait for * * Context loss count is the sum of powerdomain off-mode counter, the - * logic off counter and the per-bank memory off counter. Returns 0 + * logic off counter and the per-bank memory off counter. Returns negative * (and WARNs) upon error, otherwise, returns the context loss count. */ -u32 pwrdm_get_context_loss_count(struct powerdomain *pwrdm) +int pwrdm_get_context_loss_count(struct powerdomain *pwrdm) { int i, count; if (!pwrdm) { WARN(1, "powerdomain: %s: pwrdm is null\n", __func__); - return 0; + return -ENODEV; } count = pwrdm->state_counter[PWRDM_POWER_OFF]; @@ -1020,7 +1020,13 @@ u32 pwrdm_get_context_loss_count(struct powerdomain *pwrdm) for (i = 0; i < pwrdm->banks; i++) count += pwrdm->ret_mem_off_counter[i]; - pr_debug("powerdomain: %s: context loss count = %u\n", + /* + * Context loss count has to be a non-negative value. Clear the sign + * bit to get a value range from 0 to INT_MAX. + */ + count &= INT_MAX; + + pr_debug("powerdomain: %s: context loss count = %d\n", pwrdm->name, count); return count; |