From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
To: rjw@rjwysocki.net, tglx@linutronix.de, mingo@redhat.com,
bp@suse.de, peterz@infradead.org
Cc: x86@kernel.org, linux-pm@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
tim.c.chen@linux.intel.com, alexey.klimov@arm.com,
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Subject: [PATCH v2 1/4] acpi: cppc: Allow build with ACPI_CPU_FREQ_PSS config
Date: Thu, 1 Sep 2016 13:37:08 -0700 [thread overview]
Message-ID: <1472762231-88923-2-git-send-email-srinivas.pandruvada@linux.intel.com> (raw)
In-Reply-To: <1472762231-88923-1-git-send-email-srinivas.pandruvada@linux.intel.com>
Some newer x86 platforms have support for both _CPC and _PSS object. So
kernel config can have both ACPI_CPU_FREQ_PSS and ACPI_CPPC_LIB. So remove
restriction for ACPI_CPPC_LIB to build only when ACPI_CPU_FREQ_PSS is not
defined.
Also for legacy systems with only _PSS, we shouldn't bail out if
acpi_cppc_processor_probe() fails, if ACPI_CPU_FREQ_PSS is also defined.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
---
drivers/acpi/Kconfig | 1 -
drivers/acpi/processor_driver.c | 2 +-
2 files changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 445ce28..c6bb6aa 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -227,7 +227,6 @@ config ACPI_MCFG
config ACPI_CPPC_LIB
bool
depends on ACPI_PROCESSOR
- depends on !ACPI_CPU_FREQ_PSS
select MAILBOX
select PCC
help
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index 0553aee..f5c92be 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -245,7 +245,7 @@ static int __acpi_processor_start(struct acpi_device *device)
return 0;
result = acpi_cppc_processor_probe(pr);
- if (result)
+ if (result && !IS_ENABLED(CONFIG_ACPI_CPU_FREQ_PSS))
return -ENODEV;
if (!cpuidle_get_driver() || cpuidle_get_driver() == &acpi_idle_driver)
--
2.7.4
next prev parent reply other threads:[~2016-09-01 20:37 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-01 20:37 [PATCH v2 0/4] CPPC only changes for supporting ITMT 3.0 Srinivas Pandruvada
2016-09-01 20:37 ` Srinivas Pandruvada [this message]
2016-09-01 20:37 ` [PATCH v2 2/4] acpi: cppc: Don't return on CPPC probe failure Srinivas Pandruvada
2016-09-01 20:37 ` [PATCH v2 3/4] acpi: cppc: Add support for functional fixed hardware address Srinivas Pandruvada
2016-09-01 20:37 ` [PATCH v2 4/4] acpi: cppc: Add prefix cppc to cpudata structure name Srinivas Pandruvada
2016-09-12 22:13 ` [PATCH v2 0/4] CPPC only changes for supporting ITMT 3.0 Rafael J. Wysocki
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