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authorSantosh Shilimkar <santosh.shilimkar@ti.com>2011-02-11 20:42:12 +0530
committerKevin Hilman <khilman@ti.com>2011-03-09 16:15:50 -0800
commit8c5ca4d29bf44eb4eb004683ca745742040c7486 (patch)
treecabadba22a161c854afcfbb0fdb9c7760cf4b589
parent261bfb286eab32aa6129f48d2b2d24f20825757b (diff)
omap3: cpuidle: Add description field to each C-state.
Add a description field to each idle C-state. This helps to give better data with PowerTop and one don't have to refer to the code to link what Cx means from system point of view while analysing PowerTop data. No functional change. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Kevin Hilman <khilman@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
-rw-r--r--arch/arm/mach-omap2/cpuidle34xx.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c
index 876eecab9f4..cba437dd002 100644
--- a/arch/arm/mach-omap2/cpuidle34xx.c
+++ b/arch/arm/mach-omap2/cpuidle34xx.c
@@ -58,6 +58,7 @@ struct omap3_processor_cx {
u32 core_state;
u32 threshold;
u32 flags;
+ const char *desc;
};
struct omap3_processor_cx omap3_power_states[OMAP3_MAX_STATES];
@@ -365,6 +366,7 @@ void omap_init_power_states(void)
omap3_power_states[OMAP3_STATE_C1].mpu_state = PWRDM_POWER_ON;
omap3_power_states[OMAP3_STATE_C1].core_state = PWRDM_POWER_ON;
omap3_power_states[OMAP3_STATE_C1].flags = CPUIDLE_FLAG_TIME_VALID;
+ omap3_power_states[OMAP3_STATE_C1].desc = "MPU ON + CORE ON";
/* C2 . MPU WFI + Core inactive */
omap3_power_states[OMAP3_STATE_C2].valid =
@@ -380,6 +382,7 @@ void omap_init_power_states(void)
omap3_power_states[OMAP3_STATE_C2].core_state = PWRDM_POWER_ON;
omap3_power_states[OMAP3_STATE_C2].flags = CPUIDLE_FLAG_TIME_VALID |
CPUIDLE_FLAG_CHECK_BM;
+ omap3_power_states[OMAP3_STATE_C2].desc = "MPU ON + CORE ON";
/* C3 . MPU CSWR + Core inactive */
omap3_power_states[OMAP3_STATE_C3].valid =
@@ -395,6 +398,7 @@ void omap_init_power_states(void)
omap3_power_states[OMAP3_STATE_C3].core_state = PWRDM_POWER_ON;
omap3_power_states[OMAP3_STATE_C3].flags = CPUIDLE_FLAG_TIME_VALID |
CPUIDLE_FLAG_CHECK_BM;
+ omap3_power_states[OMAP3_STATE_C3].desc = "MPU RET + CORE ON";
/* C4 . MPU OFF + Core inactive */
omap3_power_states[OMAP3_STATE_C4].valid =
@@ -410,6 +414,7 @@ void omap_init_power_states(void)
omap3_power_states[OMAP3_STATE_C4].core_state = PWRDM_POWER_ON;
omap3_power_states[OMAP3_STATE_C4].flags = CPUIDLE_FLAG_TIME_VALID |
CPUIDLE_FLAG_CHECK_BM;
+ omap3_power_states[OMAP3_STATE_C4].desc = "MPU OFF + CORE ON";
/* C5 . MPU CSWR + Core CSWR*/
omap3_power_states[OMAP3_STATE_C5].valid =
@@ -425,6 +430,7 @@ void omap_init_power_states(void)
omap3_power_states[OMAP3_STATE_C5].core_state = PWRDM_POWER_RET;
omap3_power_states[OMAP3_STATE_C5].flags = CPUIDLE_FLAG_TIME_VALID |
CPUIDLE_FLAG_CHECK_BM;
+ omap3_power_states[OMAP3_STATE_C5].desc = "MPU RET + CORE RET";
/* C6 . MPU OFF + Core CSWR */
omap3_power_states[OMAP3_STATE_C6].valid =
@@ -440,6 +446,7 @@ void omap_init_power_states(void)
omap3_power_states[OMAP3_STATE_C6].core_state = PWRDM_POWER_RET;
omap3_power_states[OMAP3_STATE_C6].flags = CPUIDLE_FLAG_TIME_VALID |
CPUIDLE_FLAG_CHECK_BM;
+ omap3_power_states[OMAP3_STATE_C6].desc = "MPU OFF + CORE RET";
/* C7 . MPU OFF + Core OFF */
omap3_power_states[OMAP3_STATE_C7].valid =
@@ -455,6 +462,7 @@ void omap_init_power_states(void)
omap3_power_states[OMAP3_STATE_C7].core_state = PWRDM_POWER_OFF;
omap3_power_states[OMAP3_STATE_C7].flags = CPUIDLE_FLAG_TIME_VALID |
CPUIDLE_FLAG_CHECK_BM;
+ omap3_power_states[OMAP3_STATE_C7].desc = "MPU OFF + CORE OFF";
/*
* Erratum i583: implementation for ES rev < Es1.2 on 3630. We cannot
@@ -512,6 +520,7 @@ int __init omap3_idle_init(void)
if (cx->type == OMAP3_STATE_C1)
dev->safe_state = state;
sprintf(state->name, "C%d", count+1);
+ strncpy(state->desc, cx->desc, CPUIDLE_DESC_LEN);
count++;
}