[PATCH v8 16/26] drivers: firmware: psci: Support hierarchical CPU idle states
From: Ulf Hansson <hidden>
Date: 2018-06-20 17:25:09
Also in:
linux-arm-kernel, linux-arm-msm, lkml
Subsystem:
power state coordination interface (psci), the rest · Maintainers:
Mark Rutland, Lorenzo Pieralisi, Linus Torvalds
From: Lina Iyer <redacted> Currently CPU's idle states are represented in a flattened model, via the "cpu-idle-states" binding from within the CPU's device nodes. Support the hierarchical layout, simply by converting to calling the new OF helper, of_get_cpu_state_node(). Cc: Lina Iyer <redacted> Suggested-by: Sudeep Holla <redacted> Signed-off-by: Lina Iyer <redacted> Co-developed-by: Ulf Hansson <redacted> Signed-off-by: Ulf Hansson <redacted> --- drivers/firmware/psci/psci.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/firmware/psci/psci.c b/drivers/firmware/psci/psci.c
index 9788bfc1cf8b..256b4edbb20a 100644
--- a/drivers/firmware/psci/psci.c
+++ b/drivers/firmware/psci/psci.c@@ -294,8 +294,7 @@ static int psci_dt_cpu_init_idle(struct device_node *cpu_node, int cpu) struct device_node *state_node; /* Count idle states */ - while ((state_node = of_parse_phandle(cpu_node, "cpu-idle-states", - count))) { + while ((state_node = of_get_cpu_state_node(cpu_node, count))) { count++; of_node_put(state_node); }
@@ -308,7 +307,7 @@ static int psci_dt_cpu_init_idle(struct device_node *cpu_node, int cpu) return -ENOMEM; for (i = 0; i < count; i++) { - state_node = of_parse_phandle(cpu_node, "cpu-idle-states", i); + state_node = of_get_cpu_state_node(cpu_node, i); ret = psci_dt_parse_state_node(state_node, &psci_states[i]); of_node_put(state_node);
--
2.17.1