diff options
| author | Lv Zheng <lv.zheng@intel.com> | 2013-12-06 16:52:05 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-12-07 01:24:33 +0100 |
| commit | 27d50c82714f6477ac690034b37d202f76eb4f70 (patch) | |
| tree | 67a1d4e0e73b7e0167a7406ec962718ae2d58305 /drivers/gpu/drm | |
| parent | c099eacbcaec4475936fbf73e499507728ce47e1 (diff) | |
ACPI / i915: Fix incorrect <acpi/acpi.h> inclusions via <linux/acpi_io.h>
To avoid build problems and breaking dependencies between ACPI header
files, <acpi/acpi.h> should not be included directly by code outside
of the ACPI core subsystem. However, that is possible if
<linux/acpi_io.h> is included, because that file contains
a direct inclusion of <acpi/acpi.h>.
For this reason, remove the direct <acpi/acpi.h> inclusion from
<linux/acpi_io.h>, move that file from include/linux/ to include/acpi/
and make <linux/acpi.h> include it for CONFIG_ACPI set along with the
other ACPI header files. Accordingly, Remove the inclusions of
<linux/acpi_io.h> from everywhere.
Of course, that causes the contents of the new <acpi/acpi_io.h> file
to be available for CONFIG_ACPI set only, so intel_opregion.o that
depends on it should also depend on CONFIG_ACPI (and it really should
not be compiled for CONFIG_ACPI unset anyway).
References: https://01.org/linuxgraphics/sites/default/files/documentation/acpi_igd_opregion_spec.pdf
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[rjw: Subject and changelog]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/gma500/opregion.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/Makefile | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_opregion.c | 1 |
4 files changed, 3 insertions, 5 deletions
diff --git a/drivers/gpu/drm/gma500/opregion.c b/drivers/gpu/drm/gma500/opregion.c index ad0d6de938f..13ec6283bf5 100644 --- a/drivers/gpu/drm/gma500/opregion.c +++ b/drivers/gpu/drm/gma500/opregion.c @@ -22,7 +22,6 @@ * */ #include <linux/acpi.h> -#include <linux/acpi_io.h> #include "psb_drv.h" #include "psb_intel_reg.h" diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 41838eaa799..d4ae48b04cf 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -38,7 +38,6 @@ i915-y := i915_drv.o i915_dma.o i915_irq.o \ intel_ringbuffer.o \ intel_overlay.o \ intel_sprite.o \ - intel_opregion.o \ intel_sideband.o \ intel_uncore.o \ dvo_ch7xxx.o \ @@ -51,7 +50,7 @@ i915-y := i915_drv.o i915_dma.o i915_irq.o \ i915-$(CONFIG_COMPAT) += i915_ioc32.o -i915-$(CONFIG_ACPI) += intel_acpi.o +i915-$(CONFIG_ACPI) += intel_acpi.o intel_opregion.o i915-$(CONFIG_DRM_I915_FBDEV) += intel_fbdev.o diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index ccdbecca070..7f37b838802 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2336,8 +2336,8 @@ extern void intel_i2c_reset(struct drm_device *dev); /* intel_opregion.c */ struct intel_encoder; -extern int intel_opregion_setup(struct drm_device *dev); #ifdef CONFIG_ACPI +extern int intel_opregion_setup(struct drm_device *dev); extern void intel_opregion_init(struct drm_device *dev); extern void intel_opregion_fini(struct drm_device *dev); extern void intel_opregion_asle_intr(struct drm_device *dev); @@ -2346,6 +2346,7 @@ extern int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, extern int intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state); #else +static inline int intel_opregion_setup(struct drm_device *dev) { return 0; } static inline void intel_opregion_init(struct drm_device *dev) { return; } static inline void intel_opregion_fini(struct drm_device *dev) { return; } static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; } diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c index 6d69a9bad86..9a8804bee5c 100644 --- a/drivers/gpu/drm/i915/intel_opregion.c +++ b/drivers/gpu/drm/i915/intel_opregion.c @@ -28,7 +28,6 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/acpi.h> -#include <linux/acpi_io.h> #include <acpi/video.h> #include <drm/drmP.h> |