cpuidle: Init cpuidle only for present CPUs

for_each_possible_cpu() is currently used to initialize cpuidle
in below cpuidle drivers:
  drivers/cpuidle/cpuidle-arm.c
  drivers/cpuidle/cpuidle-big_little.c
  drivers/cpuidle/cpuidle-psci.c
  drivers/cpuidle/cpuidle-qcom-spm.c
  drivers/cpuidle/cpuidle-riscv-sbi.c

However, in cpu_dev_register_generic(), for_each_present_cpu()
is used to register CPU devices which means the CPU devices are
only registered for present CPUs and not all possible CPUs.

With nosmp or maxcpus=0, only the boot CPU is present, lead
to the failure:

  |  Failed to register cpuidle device for cpu1

Then rollback to cancel all CPUs' cpuidle registration.

Change for_each_possible_cpu() to for_each_present_cpu() in the
above cpuidle drivers to ensure it only registers cpuidle devices
for CPUs that are actually present.

Fixes: b0c69e1214bc ("drivers: base: Use present CPUs in GENERIC_CPU_DEVICES")
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Tested-by: Yuanjie Yang <quic_yuanjiey@quicinc.com>
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://patch.msgid.link/20250307145547.2784821-1-ping.bai@nxp.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/cpuidle/cpuidle-psci.c b/drivers/cpuidle/cpuidle-psci.c
index 2562dc001fc1..a4594c3d6562 100644
--- a/drivers/cpuidle/cpuidle-psci.c
+++ b/drivers/cpuidle/cpuidle-psci.c
@@ -400,7 +400,7 @@ deinit:
 /*
  * psci_idle_probe - Initializes PSCI cpuidle driver
  *
- * Initializes PSCI cpuidle driver for all CPUs, if any CPU fails
+ * Initializes PSCI cpuidle driver for all present CPUs, if any CPU fails
  * to register cpuidle driver then rollback to cancel all CPUs
  * registration.
  */
@@ -410,7 +410,7 @@ static int psci_cpuidle_probe(struct platform_device *pdev)
 	struct cpuidle_driver *drv;
 	struct cpuidle_device *dev;
 
-	for_each_possible_cpu(cpu) {
+	for_each_present_cpu(cpu) {
 		ret = psci_idle_init_cpu(&pdev->dev, cpu);
 		if (ret)
 			goto out_fail;