Commit 5593e303 authored by Shreyas B. Prabhu's avatar Shreyas B. Prabhu Committed by Michael Ellerman

powerpc/powernv: set power_save func after the idle states are initialized

pnv_init_idle_states() discovers supported idle states from the
device tree and does the required initialization. Set power_save
function pointer only after this initialization is done

Otherwise on machines which don't support nap, eg. Power9, the kernel
will crash when it tries to nap.
Reviewed-by: default avatarGautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: default avatarShreyas B. Prabhu <shreyas@linux.vnet.ibm.com>
Acked-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: default avatarMichael Neuling <mikey@neuling.org>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent 9497a1c1
......@@ -285,6 +285,9 @@ static int __init pnv_init_idle_states(void)
}
pnv_alloc_idle_core_states();
if (supported_cpuidle_states & OPAL_PM_NAP_ENABLED)
ppc_md.power_save = power7_idle;
out_free:
kfree(flags);
out:
......
......@@ -315,7 +315,7 @@ define_machine(powernv) {
.get_proc_freq = pnv_get_proc_freq,
.progress = pnv_progress,
.machine_shutdown = pnv_shutdown,
.power_save = power7_idle,
.power_save = NULL,
.calibrate_decr = generic_calibrate_decr,
#ifdef CONFIG_KEXEC
.kexec_cpu_down = pnv_kexec_cpu_down,
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment