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authorKevin Hilman <khilman@deeprootsystems.com>2009-12-15 16:37:18 -0800
committerKevin Hilman <khilman@deeprootsystems.com>2010-02-23 11:05:01 -0800
commitbb4de3df69e2993d642e38e17a3eccfe37845acc (patch)
tree3719204fb8430a28089ed12914e458fd84090be9 /arch/arm/mach-omap2/pm.h
parent6af83b38613da58a221e56af676097575ce2c763 (diff)
downloadop-kernel-dev-bb4de3df69e2993d642e38e17a3eccfe37845acc.zip
op-kernel-dev-bb4de3df69e2993d642e38e17a3eccfe37845acc.tar.gz
OMAP3: cpuidle: configure latencies/thresholds from board file
The CPUidle C state latencies and thresholds are dependent on various board specific details. This patch makes it possible to configure these values from the respective board files. omap3_pm_init_cpuidle() can now be optionally called from board files to pass board specific cpuidle parameters. If the board files do not use this function to pass the params default values are used which might cause higher consumption dur to wrong state selection by the governor. This patch only updates the 3430sdp board files to use omap3_pm_init_cpuidle(). From Kalle, in addition to original patch from Rajendra: Building without CONFIG_CPU_IDLE or CONFIG_PM causes build to fail if cpu idle parameters are tried to pass using omap3_pm_init_cpuidle function. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Kalle Jokiniemi <kalle.jokiniemi@digia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm/mach-omap2/pm.h')
-rw-r--r--arch/arm/mach-omap2/pm.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index 09c0144..58a2671 100644
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -23,6 +23,21 @@ extern int omap3_can_sleep(void);
extern int set_pwrdm_state(struct powerdomain *pwrdm, u32 state);
extern int omap3_idle_init(void);
+struct cpuidle_params {
+ u32 sleep_latency;
+ u32 wake_latency;
+ u32 threshold;
+};
+
+#if defined(CONFIG_PM) && defined(CONFIG_CPU_IDLE)
+extern void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params);
+#else
+static
+inline void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params)
+{
+}
+#endif
+
extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm);
extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state);
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