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-rw-r--r--drivers/cpuidle/cpuidle-arm64.c14
-rw-r--r--drivers/cpuidle/cpuidle-at91.c1
-rw-r--r--drivers/cpuidle/cpuidle-big_little.c6
-rw-r--r--drivers/cpuidle/cpuidle-calxeda.c1
-rw-r--r--drivers/cpuidle/cpuidle-cps.c7
-rw-r--r--drivers/cpuidle/cpuidle-exynos.c1
-rw-r--r--drivers/cpuidle/cpuidle-kirkwood.c1
-rw-r--r--drivers/cpuidle/cpuidle-mvebu-v7.c8
-rw-r--r--drivers/cpuidle/cpuidle-powernv.c6
-rw-r--r--drivers/cpuidle/cpuidle-pseries.c3
-rw-r--r--drivers/cpuidle/cpuidle-ux500.c3
-rw-r--r--drivers/cpuidle/cpuidle-zynq.c1
-rw-r--r--drivers/cpuidle/driver.c1
-rw-r--r--drivers/cpuidle/dt_idle_states.c12
-rw-r--r--drivers/cpuidle/governors/ladder.c2
-rw-r--r--drivers/cpuidle/governors/menu.c2
16 files changed, 23 insertions, 46 deletions
diff --git a/drivers/cpuidle/cpuidle-arm64.c b/drivers/cpuidle/cpuidle-arm64.c
index 50997ea942fc..80704b931ba4 100644
--- a/drivers/cpuidle/cpuidle-arm64.c
+++ b/drivers/cpuidle/cpuidle-arm64.c
@@ -73,7 +73,6 @@ static struct cpuidle_driver arm64_idle_driver = {
.exit_latency = 1,
.target_residency = 1,
.power_usage = UINT_MAX,
- .flags = CPUIDLE_FLAG_TIME_VALID,
.name = "WFI",
.desc = "ARM64 WFI",
}
@@ -104,11 +103,8 @@ static int __init arm64_idle_init(void)
* reason to initialize the idle driver if only wfi is supported.
*/
ret = dt_init_idle_driver(drv, arm64_idle_state_match, 1);
- if (ret <= 0) {
- if (ret)
- pr_err("failed to initialize idle states\n");
+ if (ret <= 0)
return ret ? : -ENODEV;
- }
/*
* Call arch CPU operations in order to initialize
@@ -122,12 +118,6 @@ static int __init arm64_idle_init(void)
}
}
- ret = cpuidle_register(drv, NULL);
- if (ret) {
- pr_err("failed to register cpuidle driver\n");
- return ret;
- }
-
- return 0;
+ return cpuidle_register(drv, NULL);
}
device_initcall(arm64_idle_init);
diff --git a/drivers/cpuidle/cpuidle-at91.c b/drivers/cpuidle/cpuidle-at91.c
index a0774370c6bc..1964ff07117c 100644
--- a/drivers/cpuidle/cpuidle-at91.c
+++ b/drivers/cpuidle/cpuidle-at91.c
@@ -43,7 +43,6 @@ static struct cpuidle_driver at91_idle_driver = {
.enter = at91_enter_idle,
.exit_latency = 10,
.target_residency = 10000,
- .flags = CPUIDLE_FLAG_TIME_VALID,
.name = "RAM_SR",
.desc = "WFI and DDR Self Refresh",
},
diff --git a/drivers/cpuidle/cpuidle-big_little.c b/drivers/cpuidle/cpuidle-big_little.c
index fbc00a1d3c48..e3e225fe6b45 100644
--- a/drivers/cpuidle/cpuidle-big_little.c
+++ b/drivers/cpuidle/cpuidle-big_little.c
@@ -67,8 +67,7 @@ static struct cpuidle_driver bl_idle_little_driver = {
.enter = bl_enter_powerdown,
.exit_latency = 700,
.target_residency = 2500,
- .flags = CPUIDLE_FLAG_TIME_VALID |
- CPUIDLE_FLAG_TIMER_STOP,
+ .flags = CPUIDLE_FLAG_TIMER_STOP,
.name = "C1",
.desc = "ARM little-cluster power down",
},
@@ -89,8 +88,7 @@ static struct cpuidle_driver bl_idle_big_driver = {
.enter = bl_enter_powerdown,
.exit_latency = 500,
.target_residency = 2000,
- .flags = CPUIDLE_FLAG_TIME_VALID |
- CPUIDLE_FLAG_TIMER_STOP,
+ .flags = CPUIDLE_FLAG_TIMER_STOP,
.name = "C1",
.desc = "ARM big-cluster power down",
},
diff --git a/drivers/cpuidle/cpuidle-calxeda.c b/drivers/cpuidle/cpuidle-calxeda.c
index 6e51114057d0..6541b0bfdfaa 100644
--- a/drivers/cpuidle/cpuidle-calxeda.c
+++ b/drivers/cpuidle/cpuidle-calxeda.c
@@ -55,7 +55,6 @@ static struct cpuidle_driver calxeda_idle_driver = {
{
.name = "PG",
.desc = "Power Gate",
- .flags = CPUIDLE_FLAG_TIME_VALID,
.exit_latency = 30,
.power_usage = 50,
.target_residency = 200,
diff --git a/drivers/cpuidle/cpuidle-cps.c b/drivers/cpuidle/cpuidle-cps.c
index fc7b62720deb..1adb6980b707 100644
--- a/drivers/cpuidle/cpuidle-cps.c
+++ b/drivers/cpuidle/cpuidle-cps.c
@@ -79,7 +79,6 @@ static struct cpuidle_driver cps_driver = {
.enter = cps_nc_enter,
.exit_latency = 200,
.target_residency = 450,
- .flags = CPUIDLE_FLAG_TIME_VALID,
.name = "nc-wait",
.desc = "non-coherent MIPS wait",
},
@@ -87,8 +86,7 @@ static struct cpuidle_driver cps_driver = {
.enter = cps_nc_enter,
.exit_latency = 300,
.target_residency = 700,
- .flags = CPUIDLE_FLAG_TIME_VALID |
- CPUIDLE_FLAG_TIMER_STOP,
+ .flags = CPUIDLE_FLAG_TIMER_STOP,
.name = "clock-gated",
.desc = "core clock gated",
},
@@ -96,8 +94,7 @@ static struct cpuidle_driver cps_driver = {
.enter = cps_nc_enter,
.exit_latency = 600,
.target_residency = 1000,
- .flags = CPUIDLE_FLAG_TIME_VALID |
- CPUIDLE_FLAG_TIMER_STOP,
+ .flags = CPUIDLE_FLAG_TIMER_STOP,
.name = "power-gated",
.desc = "core power gated",
},
diff --git a/drivers/cpuidle/cpuidle-exynos.c b/drivers/cpuidle/cpuidle-exynos.c
index ba9b34b579f3..64d12a855ec6 100644
--- a/drivers/cpuidle/cpuidle-exynos.c
+++ b/drivers/cpuidle/cpuidle-exynos.c
@@ -47,7 +47,6 @@ static struct cpuidle_driver exynos_idle_driver = {
.enter = exynos_enter_lowpower,
.exit_latency = 300,
.target_residency = 100000,
- .flags = CPUIDLE_FLAG_TIME_VALID,
.name = "C1",
.desc = "ARM power down",
},
diff --git a/drivers/cpuidle/cpuidle-kirkwood.c b/drivers/cpuidle/cpuidle-kirkwood.c
index 41ba843251b8..d88f8d7c2143 100644
--- a/drivers/cpuidle/cpuidle-kirkwood.c
+++ b/drivers/cpuidle/cpuidle-kirkwood.c
@@ -47,7 +47,6 @@ static struct cpuidle_driver kirkwood_idle_driver = {
.enter = kirkwood_enter_idle,
.exit_latency = 10,
.target_residency = 100000,
- .flags = CPUIDLE_FLAG_TIME_VALID,
.name = "DDR SR",
.desc = "WFI and DDR Self Refresh",
},
diff --git a/drivers/cpuidle/cpuidle-mvebu-v7.c b/drivers/cpuidle/cpuidle-mvebu-v7.c
index 45371bb16214..dd4c176df2a3 100644
--- a/drivers/cpuidle/cpuidle-mvebu-v7.c
+++ b/drivers/cpuidle/cpuidle-mvebu-v7.c
@@ -53,7 +53,6 @@ static struct cpuidle_driver armadaxp_idle_driver = {
.exit_latency = 10,
.power_usage = 50,
.target_residency = 100,
- .flags = CPUIDLE_FLAG_TIME_VALID,
.name = "MV CPU IDLE",
.desc = "CPU power down",
},
@@ -62,8 +61,7 @@ static struct cpuidle_driver armadaxp_idle_driver = {
.exit_latency = 100,
.power_usage = 5,
.target_residency = 1000,
- .flags = CPUIDLE_FLAG_TIME_VALID |
- MVEBU_V7_FLAG_DEEP_IDLE,
+ .flags = MVEBU_V7_FLAG_DEEP_IDLE,
.name = "MV CPU DEEP IDLE",
.desc = "CPU and L2 Fabric power down",
},
@@ -78,8 +76,7 @@ static struct cpuidle_driver armada370_idle_driver = {
.exit_latency = 100,
.power_usage = 5,
.target_residency = 1000,
- .flags = (CPUIDLE_FLAG_TIME_VALID |
- MVEBU_V7_FLAG_DEEP_IDLE),
+ .flags = MVEBU_V7_FLAG_DEEP_IDLE,
.name = "Deep Idle",
.desc = "CPU and L2 Fabric power down",
},
@@ -94,7 +91,6 @@ static struct cpuidle_driver armada38x_idle_driver = {
.exit_latency = 10,
.power_usage = 5,
.target_residency = 100,
- .flags = CPUIDLE_FLAG_TIME_VALID,
.name = "Idle",
.desc = "CPU and SCU power down",
},
diff --git a/drivers/cpuidle/cpuidle-powernv.c b/drivers/cpuidle/cpuidle-powernv.c
index 7d3a3497dd4c..e9248bb9173a 100644
--- a/drivers/cpuidle/cpuidle-powernv.c
+++ b/drivers/cpuidle/cpuidle-powernv.c
@@ -93,7 +93,6 @@ static struct cpuidle_state powernv_states[MAX_POWERNV_IDLE_STATES] = {
{ /* Snooze */
.name = "snooze",
.desc = "snooze",
- .flags = CPUIDLE_FLAG_TIME_VALID,
.exit_latency = 0,
.target_residency = 0,
.enter = &snooze_loop },
@@ -202,7 +201,7 @@ static int powernv_add_idle_states(void)
/* Add NAP state */
strcpy(powernv_states[nr_idle_states].name, "Nap");
strcpy(powernv_states[nr_idle_states].desc, "Nap");
- powernv_states[nr_idle_states].flags = CPUIDLE_FLAG_TIME_VALID;
+ powernv_states[nr_idle_states].flags = 0;
powernv_states[nr_idle_states].exit_latency =
((unsigned int)latency_ns) / 1000;
powernv_states[nr_idle_states].target_residency =
@@ -215,8 +214,7 @@ static int powernv_add_idle_states(void)
/* Add FASTSLEEP state */
strcpy(powernv_states[nr_idle_states].name, "FastSleep");
strcpy(powernv_states[nr_idle_states].desc, "FastSleep");
- powernv_states[nr_idle_states].flags =
- CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TIMER_STOP;
+ powernv_states[nr_idle_states].flags = CPUIDLE_FLAG_TIMER_STOP;
powernv_states[nr_idle_states].exit_latency =
((unsigned int)latency_ns) / 1000;
powernv_states[nr_idle_states].target_residency =
diff --git a/drivers/cpuidle/cpuidle-pseries.c b/drivers/cpuidle/cpuidle-pseries.c
index 6f7b01956885..bb9e2b6f3ecc 100644
--- a/drivers/cpuidle/cpuidle-pseries.c
+++ b/drivers/cpuidle/cpuidle-pseries.c
@@ -142,14 +142,12 @@ static struct cpuidle_state dedicated_states[] = {
{ /* Snooze */
.name = "snooze",
.desc = "snooze",
- .flags = CPUIDLE_FLAG_TIME_VALID,
.exit_latency = 0,
.target_residency = 0,
.enter = &snooze_loop },
{ /* CEDE */
.name = "CEDE",
.desc = "CEDE",
- .flags = CPUIDLE_FLAG_TIME_VALID,
.exit_latency = 10,
.target_residency = 100,
.enter = &dedicated_cede_loop },
@@ -162,7 +160,6 @@ static struct cpuidle_state shared_states[] = {
{ /* Shared Cede */
.name = "Shared Cede",
.desc = "Shared Cede",
- .flags = CPUIDLE_FLAG_TIME_VALID,
.exit_latency = 0,
.target_residency = 0,
.enter = &shared_cede_loop },
diff --git a/drivers/cpuidle/cpuidle-ux500.c b/drivers/cpuidle/cpuidle-ux500.c
index 5e35804b1a95..292e65a90308 100644
--- a/drivers/cpuidle/cpuidle-ux500.c
+++ b/drivers/cpuidle/cpuidle-ux500.c
@@ -101,8 +101,7 @@ static struct cpuidle_driver ux500_idle_driver = {
.enter = ux500_enter_idle,
.exit_latency = 70,
.target_residency = 260,
- .flags = CPUIDLE_FLAG_TIME_VALID |
- CPUIDLE_FLAG_TIMER_STOP,
+ .flags = CPUIDLE_FLAG_TIMER_STOP,
.name = "ApIdle",
.desc = "ARM Retention",
},
diff --git a/drivers/cpuidle/cpuidle-zynq.c b/drivers/cpuidle/cpuidle-zynq.c
index c61b8b2a7c77..022dec86de8e 100644
--- a/drivers/cpuidle/cpuidle-zynq.c
+++ b/drivers/cpuidle/cpuidle-zynq.c
@@ -52,7 +52,6 @@ static struct cpuidle_driver zynq_idle_driver = {
.enter = zynq_enter_idle,
.exit_latency = 10,
.target_residency = 10000,
- .flags = CPUIDLE_FLAG_TIME_VALID,
.name = "RAM_SR",
.desc = "WFI and RAM Self Refresh",
},
diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c
index e431d11abf8d..2697e87d5b34 100644
--- a/drivers/cpuidle/driver.c
+++ b/drivers/cpuidle/driver.c
@@ -201,7 +201,6 @@ static void poll_idle_init(struct cpuidle_driver *drv)
state->exit_latency = 0;
state->target_residency = 0;
state->power_usage = -1;
- state->flags = CPUIDLE_FLAG_TIME_VALID;
state->enter = poll_idle;
state->disabled = false;
}
diff --git a/drivers/cpuidle/dt_idle_states.c b/drivers/cpuidle/dt_idle_states.c
index 52f4d11bbf3f..a5c111b67f37 100644
--- a/drivers/cpuidle/dt_idle_states.c
+++ b/drivers/cpuidle/dt_idle_states.c
@@ -27,6 +27,7 @@ static int init_state_node(struct cpuidle_state *idle_state,
{
int err;
const struct of_device_id *match_id;
+ const char *desc;
match_id = of_match_node(matches, state_node);
if (!match_id)
@@ -73,7 +74,11 @@ static int init_state_node(struct cpuidle_state *idle_state,
return -EINVAL;
}
- idle_state->flags = CPUIDLE_FLAG_TIME_VALID;
+ err = of_property_read_string(state_node, "idle-state-name", &desc);
+ if (err)
+ desc = state_node->name;
+
+ idle_state->flags = 0;
if (of_property_read_bool(state_node, "local-timer-stop"))
idle_state->flags |= CPUIDLE_FLAG_TIMER_STOP;
/*
@@ -82,7 +87,7 @@ static int init_state_node(struct cpuidle_state *idle_state,
* and desc become string pointers
*/
strncpy(idle_state->name, state_node->name, CPUIDLE_NAME_LEN - 1);
- strncpy(idle_state->desc, state_node->name, CPUIDLE_DESC_LEN - 1);
+ strncpy(idle_state->desc, desc, CPUIDLE_DESC_LEN - 1);
return 0;
}
@@ -169,6 +174,9 @@ int dt_init_idle_driver(struct cpuidle_driver *drv,
if (!state_node)
break;
+ if (!of_device_is_available(state_node))
+ continue;
+
if (!idle_state_valid(state_node, i, cpumask)) {
pr_warn("%s idle state not valid, bailing out\n",
state_node->full_name);
diff --git a/drivers/cpuidle/governors/ladder.c b/drivers/cpuidle/governors/ladder.c
index 06b57c4c4d80..37263d9a1051 100644
--- a/drivers/cpuidle/governors/ladder.c
+++ b/drivers/cpuidle/governors/ladder.c
@@ -79,7 +79,7 @@ static int ladder_select_state(struct cpuidle_driver *drv,
last_state = &ldev->states[last_idx];
- if (drv->states[last_idx].flags & CPUIDLE_FLAG_TIME_VALID) {
+ if (!(drv->states[last_idx].flags & CPUIDLE_FLAG_TIME_INVALID)) {
last_residency = cpuidle_get_last_residency(dev) - \
drv->states[last_idx].exit_latency;
}
diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
index 710a233b9b0d..659d7b0c9ebf 100644
--- a/drivers/cpuidle/governors/menu.c
+++ b/drivers/cpuidle/governors/menu.c
@@ -405,7 +405,7 @@ static void menu_update(struct cpuidle_driver *drv, struct cpuidle_device *dev)
* the measured amount of time is less than the exit latency,
* assume the state was never reached and the exit latency is 0.
*/
- if (unlikely(!(target->flags & CPUIDLE_FLAG_TIME_VALID))) {
+ if (unlikely(target->flags & CPUIDLE_FLAG_TIME_INVALID)) {
/* Use timer value as is */
measured_us = data->next_timer_us;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-30 01:56:41 +0100