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authorDaniel Lezcano <daniel.lezcano@linaro.org>2013-04-17 13:32:56 +0000
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-04-22 00:35:53 +0200
commit0a4f841e9c473be84a1ed0c14f65058c29238ce1 (patch)
tree3dee0798633f85e9b4cb745eadd7a1258abda49f /arch/sh/kernel
parent194db92fd20cd7733f1ee06b330af93e10dfe727 (diff)
SH: cpuidle: initialize the driver's states directly
Like all the other drivers, let's initialize the structure a compile time instead of init time. The states #1 and #2 are not enabled by default. The init function will check the features of the board in order to enable the state. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'arch/sh/kernel')
-rw-r--r--arch/sh/kernel/cpu/shmobile/cpuidle.c92
1 files changed, 42 insertions, 50 deletions
diff --git a/arch/sh/kernel/cpu/shmobile/cpuidle.c b/arch/sh/kernel/cpu/shmobile/cpuidle.c
index 4b277016f0f..aae346811da 100644
--- a/arch/sh/kernel/cpu/shmobile/cpuidle.c
+++ b/arch/sh/kernel/cpu/shmobile/cpuidle.c
@@ -53,60 +53,52 @@ static int cpuidle_sleep_enter(struct cpuidle_device *dev,
static struct cpuidle_device cpuidle_dev;
static struct cpuidle_driver cpuidle_driver = {
- .name = "sh_idle",
- .owner = THIS_MODULE,
- .en_core_tk_irqen = 1,
+ .name = "sh_idle",
+ .owner = THIS_MODULE,
+ .en_core_tk_irqen = 1,
+ .states = {
+ {
+ .exit_latency = 1,
+ .target_residency = 1 * 2,
+ .power_usage = 3,
+ .flags = CPUIDLE_FLAG_TIME_VALID,
+ .enter = cpuidle_sleep_enter,
+ .name = "C1",
+ .desc = "SuperH Sleep Mode",
+ },
+ {
+ .exit_latency = 100,
+ .target_residency = 1 * 2,
+ .power_usage = 1,
+ .flags = CPUIDLE_FLAG_TIME_VALID,
+ .enter = cpuidle_sleep_enter,
+ .name = "C2",
+ .desc = "SuperH Sleep Mode [SF]",
+ .disabled = true,
+ },
+ {
+ .exit_latency = 2300,
+ .target_residency = 1 * 2,
+ .power_usage = 1,
+ .flags = CPUIDLE_FLAG_TIME_VALID,
+ .enter = cpuidle_sleep_enter,
+ .name = "C3",
+ .desc = "SuperH Mobile Standby Mode [SF]",
+ .disabled = true,
+ },
+ },
+ .safe_state_index = 0,
+ .state_count = 3,
};
void sh_mobile_setup_cpuidle(void)
{
- struct cpuidle_device *dev = &cpuidle_dev;
- struct cpuidle_driver *drv = &cpuidle_driver;
- struct cpuidle_state *state;
- int i = 0;
+ if (sh_mobile_sleep_supported & SUSP_SH_SF)
+ cpuidle_driver.states[1].disabled = false;
- state = &drv->states[i++];
- snprintf(state->name, CPUIDLE_NAME_LEN, "C1");
- strncpy(state->desc, "SuperH Sleep Mode", CPUIDLE_DESC_LEN);
- state->exit_latency = 1;
- state->target_residency = 1 * 2;
- state->power_usage = 3;
- state->flags = 0;
- state->flags |= CPUIDLE_FLAG_TIME_VALID;
- state->enter = cpuidle_sleep_enter;
+ if (sh_mobile_sleep_supported & SUSP_SH_STANDBY)
+ cpuidle_driver.states[2].disabled = false;
- drv->safe_state_index = 0;
-
- if (sh_mobile_sleep_supported & SUSP_SH_SF) {
- state = &drv->states[i++];
- snprintf(state->name, CPUIDLE_NAME_LEN, "C2");
- 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_STANDBY) {
- state = &drv->states[i++];
- snprintf(state->name, CPUIDLE_NAME_LEN, "C3");
- 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;
- }
-
- drv->state_count = i;
- dev->state_count = i;
-
- cpuidle_register_driver(&cpuidle_driver);
-
- cpuidle_register_device(dev);
+ if (!cpuidle_register_driver(&cpuidle_driver))
+ cpuidle_register_device(&cpuidle_dev);
}