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authorLinus Torvalds <torvalds@linux-foundation.org>2011-11-07 16:14:26 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-07 16:14:26 -0800
commit075cb105cb6dcda8a585989ebd4a71f0b3c33f3e (patch)
tree288b8ceb07f2f9780c572ca8c15b9d3096928ba0 /arch/arm/mach-omap2/powerdomain.c
parenta3fbbde70a0cec017f2431e8f8de208708c76acc (diff)
parentd30cc16c8e48368e0518f4975a78711e53e14a0f (diff)
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (31 commits) ARM: OMAP: Fix export.h or module.h includes ARM: OMAP: omap_device: Include linux/export.h ARM: OMAP2: Fix H4 matrix keyboard warning ARM: OMAP1: Remove unused omap-alsa.h ARM: OMAP1: Fix warnings about enabling 32 KiHz timer ARM: OMAP2+: timer: Remove omap_device_pm_latency ARM: OMAP2+: clock data: Remove redundant timer clkdev ARM: OMAP: Devkit8000: Remove double omap_mux_init_gpio ARM: OMAP: usb: musb: OMAP: Delete unused function MAINTAINERS: Update linux-omap git repository ARM: OMAP: change get_context_loss_count ret value to int ARM: OMAP4: hsmmc: configure SDMMC1_DR0 properly ARM: OMAP4: hsmmc: Fix Pbias configuration on regulator OFF ARM: OMAP3: hwmod: fix variant registration and remove SmartReflex from common list ARM: OMAP: I2C: Fix omap_register_i2c_bus() return value on success ARM: OMAP: dmtimer: Include linux/module.h ARM: OMAP2+: l3-noc: Include linux/module.h ARM: OMAP2+: devices: Fixes for McPDM ARM: OMAP: Fix errors and warnings when building for one board ARM: OMAP3: PM: restrict erratum i443 handling to OMAP3430 only ...
Diffstat (limited to 'arch/arm/mach-omap2/powerdomain.c')
-rw-r--r--arch/arm/mach-omap2/powerdomain.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c
index 5164d587ef52..8a18d1bd61c8 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;