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authorHanjun Guo <hanjun.guo@linaro.org>2014-07-18 14:02:54 +0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-07-21 15:50:58 +0400
commit46ba51ea8f8639da32c55744b35479fdfb4e7232 (patch)
treea1544217bd2406bb63eca797c7206acb9313e6d2 /Documentation/spi/ep93xx_spi
parentb50154d53e668314542ef9a592accc37137a8f65 (diff)
downloadlinux-46ba51ea8f8639da32c55744b35479fdfb4e7232.tar.xz
ACPI / processor: Introduce ARCH_MIGHT_HAVE_ACPI_PDC
The use of _PDC is deprecated in ACPI 3.0 in favor of _OSC, as ARM platform is supported only in ACPI 5.0 or higher version, _PDC will not be used in ARM platform, so make Make _PDC only for platforms with Intel CPUs. Introduce ARCH_MIGHT_HAVE_ACPI_PDC and move _PDC related code in ACPI processor driver into a single file processor_pdc.c, make x86 and ia64 select it when ACPI is enabled. This patch also use pr_* to replace printk to fix the checkpatch warning and factor acpi_processor_alloc_pdc() a little bit to avoid duplicate pr_err() code. Suggested-by: Robert Richter <rric@kernel.org> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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