diff options
| author | Kalle Jokiniemi <kalle.jokiniemi@digia.com> | 2009-10-29 11:30:19 +0300 |
|---|---|---|
| committer | Kevin Hilman <khilman@deeprootsystems.com> | 2010-02-23 22:05:02 +0300 |
| commit | 709731bb369b562586ee4c60f3f0393eb94dd9d6 (patch) | |
| tree | c1c44e6f297e5ea3686eaa4035b824e4e9181f56 /arch/arm/mach-omap2/cpuidle34xx.c | |
| parent | bb4de3df69e2993d642e38e17a3eccfe37845acc (diff) | |
| download | linux-709731bb369b562586ee4c60f3f0393eb94dd9d6.tar.xz | |
OMAP3: cpuidle: Add valid field into C-state parameter passing
Different boards benefit differently from the available
seven C-states for cpu idle. In most cases, only few,
properly spaced (in terms of consumption and latency)
C-states are required to make the power management
optimal. Hence we need a possibility to pass which
C-states are actually used for each board.
So added the valid field to cpuidle_params and added
support to 3430sdp, which uses the paramenter passing.
Signed-off-by: Kalle Jokiniemi <kalle.jokiniemi@digia.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm/mach-omap2/cpuidle34xx.c')
| -rw-r--r-- | arch/arm/mach-omap2/cpuidle34xx.c | 37 |
1 files changed, 23 insertions, 14 deletions
diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c index 597148eed0bd..3d3d035db9af 100644 --- a/arch/arm/mach-omap2/cpuidle34xx.c +++ b/arch/arm/mach-omap2/cpuidle34xx.c @@ -71,19 +71,19 @@ struct powerdomain *mpu_pd, *core_pd; */ static struct cpuidle_params cpuidle_params_table[] = { /* C1 */ - {2, 2, 5}, + {1, 2, 2, 5}, /* C2 */ - {10, 10, 30}, + {1, 10, 10, 30}, /* C3 */ - {50, 50, 300}, + {1, 50, 50, 300}, /* C4 */ - {1500, 1800, 4000}, + {1, 1500, 1800, 4000}, /* C5 */ - {2500, 7500, 12000}, + {1, 2500, 7500, 12000}, /* C6 */ - {3000, 8500, 15000}, + {1, 3000, 8500, 15000}, /* C7 */ - {10000, 30000, 300000}, + {1, 10000, 30000, 300000}, }; static int omap3_idle_bm_check(void) @@ -277,6 +277,8 @@ void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params) return; for (i = OMAP3_STATE_C1; i < OMAP3_MAX_STATES; i++) { + cpuidle_params_table[i].valid = + cpuidle_board_params[i].valid; cpuidle_params_table[i].sleep_latency = cpuidle_board_params[i].sleep_latency; cpuidle_params_table[i].wake_latency = @@ -301,7 +303,8 @@ void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params) void omap_init_power_states(void) { /* C1 . MPU WFI + Core active */ - omap3_power_states[OMAP3_STATE_C1].valid = 1; + omap3_power_states[OMAP3_STATE_C1].valid = + cpuidle_params_table[OMAP3_STATE_C1].valid; omap3_power_states[OMAP3_STATE_C1].type = OMAP3_STATE_C1; omap3_power_states[OMAP3_STATE_C1].sleep_latency = cpuidle_params_table[OMAP3_STATE_C1].sleep_latency; @@ -314,7 +317,8 @@ void omap_init_power_states(void) omap3_power_states[OMAP3_STATE_C1].flags = CPUIDLE_FLAG_TIME_VALID; /* C2 . MPU WFI + Core inactive */ - omap3_power_states[OMAP3_STATE_C2].valid = 1; + omap3_power_states[OMAP3_STATE_C2].valid = + cpuidle_params_table[OMAP3_STATE_C2].valid; omap3_power_states[OMAP3_STATE_C2].type = OMAP3_STATE_C2; omap3_power_states[OMAP3_STATE_C2].sleep_latency = cpuidle_params_table[OMAP3_STATE_C2].sleep_latency; @@ -327,7 +331,8 @@ void omap_init_power_states(void) omap3_power_states[OMAP3_STATE_C2].flags = CPUIDLE_FLAG_TIME_VALID; /* C3 . MPU CSWR + Core inactive */ - omap3_power_states[OMAP3_STATE_C3].valid = 1; + omap3_power_states[OMAP3_STATE_C3].valid = + cpuidle_params_table[OMAP3_STATE_C3].valid; omap3_power_states[OMAP3_STATE_C3].type = OMAP3_STATE_C3; omap3_power_states[OMAP3_STATE_C3].sleep_latency = cpuidle_params_table[OMAP3_STATE_C3].sleep_latency; @@ -341,7 +346,8 @@ void omap_init_power_states(void) CPUIDLE_FLAG_CHECK_BM; /* C4 . MPU OFF + Core inactive */ - omap3_power_states[OMAP3_STATE_C4].valid = 1; + omap3_power_states[OMAP3_STATE_C4].valid = + cpuidle_params_table[OMAP3_STATE_C4].valid; omap3_power_states[OMAP3_STATE_C4].type = OMAP3_STATE_C4; omap3_power_states[OMAP3_STATE_C4].sleep_latency = cpuidle_params_table[OMAP3_STATE_C4].sleep_latency; @@ -355,7 +361,8 @@ void omap_init_power_states(void) CPUIDLE_FLAG_CHECK_BM; /* C5 . MPU CSWR + Core CSWR*/ - omap3_power_states[OMAP3_STATE_C5].valid = 1; + omap3_power_states[OMAP3_STATE_C5].valid = + cpuidle_params_table[OMAP3_STATE_C5].valid; omap3_power_states[OMAP3_STATE_C5].type = OMAP3_STATE_C5; omap3_power_states[OMAP3_STATE_C5].sleep_latency = cpuidle_params_table[OMAP3_STATE_C5].sleep_latency; @@ -369,7 +376,8 @@ void omap_init_power_states(void) CPUIDLE_FLAG_CHECK_BM; /* C6 . MPU OFF + Core CSWR */ - omap3_power_states[OMAP3_STATE_C6].valid = 1; + omap3_power_states[OMAP3_STATE_C6].valid = + cpuidle_params_table[OMAP3_STATE_C6].valid; omap3_power_states[OMAP3_STATE_C6].type = OMAP3_STATE_C6; omap3_power_states[OMAP3_STATE_C6].sleep_latency = cpuidle_params_table[OMAP3_STATE_C6].sleep_latency; @@ -383,7 +391,8 @@ void omap_init_power_states(void) CPUIDLE_FLAG_CHECK_BM; /* C7 . MPU OFF + Core OFF */ - omap3_power_states[OMAP3_STATE_C7].valid = 1; + omap3_power_states[OMAP3_STATE_C7].valid = + cpuidle_params_table[OMAP3_STATE_C7].valid; omap3_power_states[OMAP3_STATE_C7].type = OMAP3_STATE_C7; omap3_power_states[OMAP3_STATE_C7].sleep_latency = cpuidle_params_table[OMAP3_STATE_C7].sleep_latency; |