ACPI: processor: use dev_dbg() instead of dev_warn() when CPPC probe failed

_CPC is a optinal object for processor device so it's
fine for processor devices in DSDT without CPPC data,
but when booting the system with CPPC enabled in the
kernel but without its support in the firmware, I got
lots of warnings on a 64 core system:

[    6.346016] acpi ACPI0007:00: CPPC data invalid or not present
[    6.346028] acpi ACPI0007:01: CPPC data invalid or not present
[    6.346039] acpi ACPI0007:02: CPPC data invalid or not present
[    6.346050] acpi ACPI0007:03: CPPC data invalid or not present
[    6.346063] acpi ACPI0007:04: CPPC data invalid or not present
...
[    6.346737] acpi ACPI0007:3f: CPPC data invalid or not present

This isn't much useful and a little bit noise, so
switch the dev_warn() to dev_dbg().

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index 591d1dd3f04e..9d6aff22684e 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -237,7 +237,7 @@ static int __acpi_processor_start(struct acpi_device *device)
 
         result = acpi_cppc_processor_probe(pr);
         if (result && !IS_ENABLED(CONFIG_ACPI_CPU_FREQ_PSS))
-                dev_warn(&device->dev, "CPPC data invalid or not present\n");
+                dev_dbg(&device->dev, "CPPC data invalid or not present\n");
 
         if (!cpuidle_get_driver() || cpuidle_get_driver() == &acpi_idle_driver)
                 acpi_processor_power_init(pr);