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drivers: cpuidle: Add status property to ARM idle states

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On some platforms the device tree bindings must provide the kernel
with a status flag for idle states, that defines whether the idle
state is operational or not in the current configuration.

This patch adds a status property to the ARM idle states compliant
with ePAPR v1.1 and updates the DT parsing code accordingly.

Acked-by: Kevin Hilman <[email protected]>
Signed-off-by: Lorenzo Pieralisi <[email protected]>
Signed-off-by: Daniel Lezcano <[email protected]>
This commit is contained in:
Lorenzo Pieralisi 2014-10-15 16:50:52 +01:00 • committed by Daniel Lezcano
commit 97735da074
2 changed files with 17 additions and 0 deletions
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3
drivers/cpuidle/dt_idle_states.c
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@ -169,6 +169,9 @@ 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);