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sh: Keep track of allowed sleep modes

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Add code to keep track of supported sleep modes. This to
only export cpuidle modes that are backed by board support
code. Also, do not allow suspend-to-ram if sdram board code
is missing.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Magnus Damm
2009-10-30 04:24:15 +00:00
committed by Paul Mundt
parent 323ef8dba6
commit 02bf89347c
3 changed files with 34 additions and 18 deletions
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42
arch/sh/kernel/cpu/shmobile/cpuidle.c
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@@ -87,25 +87,31 @@ void sh_mobile_setup_cpuidle(void)
dev->safe_state = state;
state = &dev->states[i++];
snprintf(state->name, CPUIDLE_NAME_LEN, "C1");
strncpy(state->desc, "SuperH Sleep Mode [SF]", CPUIDLE_DESC_LEN);
state->exit_latency = 100;
state->target_residency = 1 * 2;
state->power_usage = 1;
state->flags = 0;
state->flags |= CPUIDLE_FLAG_TIME_VALID;
state->enter = cpuidle_sleep_enter;
if (sh_mobile_sleep_supported & SUSP_SH_SF) {
state = &dev->states[i++];
snprintf(state->name, CPUIDLE_NAME_LEN, "C1");
strncpy(state->desc, "SuperH Sleep Mode [SF]",
CPUIDLE_DESC_LEN);
state->exit_latency = 100;
state->target_residency = 1 * 2;
state->power_usage = 1;
state->flags = 0;
state->flags |= CPUIDLE_FLAG_TIME_VALID;
state->enter = cpuidle_sleep_enter;
}
state = &dev->states[i++];
snprintf(state->name, CPUIDLE_NAME_LEN, "C2");
strncpy(state->desc, "SuperH Mobile Standby Mode [SF]", CPUIDLE_DESC_LEN);
state->exit_latency = 2300;
state->target_residency = 1 * 2;
state->power_usage = 1;
state->flags = 0;
state->flags |= CPUIDLE_FLAG_TIME_VALID;
state->enter = cpuidle_sleep_enter;
if (sh_mobile_sleep_supported & SUSP_SH_STANDBY) {
state = &dev->states[i++];
snprintf(state->name, CPUIDLE_NAME_LEN, "C2");
strncpy(state->desc, "SuperH Mobile Standby Mode [SF]",
CPUIDLE_DESC_LEN);
state->exit_latency = 2300;
state->target_residency = 1 * 2;
state->power_usage = 1;
state->flags = 0;
state->flags |= CPUIDLE_FLAG_TIME_VALID;
state->enter = cpuidle_sleep_enter;
}
dev->state_count = i;