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authorLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2014-10-15 16:50:52 +0100
committerDaniel Lezcano <daniel.lezcano@linaro.org>2014-11-19 10:16:15 +0100
commit97735da074fdd3fe39d975cad8760807df0d4388 (patch)
treec54a15ea6798d01078f838eef35a946cc939b215 /drivers/cpuidle
parentfc14f9c1272f62c3e8d01300f52467c0d9af50f9 (diff)
downloadop-kernel-dev-97735da074fdd3fe39d975cad8760807df0d4388.zip
op-kernel-dev-97735da074fdd3fe39d975cad8760807df0d4388.tar.gz
drivers: cpuidle: Add status property to ARM idle states
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 <khilman@linaro.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'drivers/cpuidle')
-rw-r--r--drivers/cpuidle/dt_idle_states.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/cpuidle/dt_idle_states.c b/drivers/cpuidle/dt_idle_states.c
index 52f4d11..22840f4 100644
--- a/drivers/cpuidle/dt_idle_states.c
+++ b/drivers/cpuidle/dt_idle_states.c
@@ -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);
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