vga_switcheroo: fix build on platforms with no ACPI

radeon was always including the atpx code unnecessarily, also core
switcheroo was including acpi headers.
Signed-off-by: NDave Airlie <airlied@redhat.com>

drivers/gpu/drm/nouveau/nouveau_drv.h

@@ -852,8 +852,13 @@ extern int  nouveau_dma_init(struct nouveau_channel *);
 extern int  nouveau_dma_wait(struct nouveau_channel *, int slots, int size);
 
 /* nouveau_acpi.c */
+#if defined(CONFIG_VGA_SWITCHEROO)
 void nouveau_register_dsm_handler(void);
 void nouveau_unregister_dsm_handler(void);
+#else
+static inline void nouveau_register_dsm_handler(void) {}
+static inline void nouveau_unregister_dsm_handler(void) {}
+#endif
 
 /* nouveau_backlight.c */
 #ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT

drivers/gpu/drm/radeon/Makefile

@@ -60,8 +60,9 @@ radeon-y += radeon_device.o radeon_kms.o \
 	rs400.o rs600.o rs690.o rv515.o r520.o r600.o rv770.o radeon_test.o \
 	r200.o radeon_legacy_tv.o r600_cs.o r600_blit.o r600_blit_shaders.o \
 	r600_blit_kms.o radeon_pm.o atombios_dp.o r600_audio.o r600_hdmi.o \
-	evergreen.o radeon_atpx_handler.o
+	evergreen.o
 
 radeon-$(CONFIG_COMPAT) += radeon_ioc32.o
+radeon-$(CONFIG_VGA_SWITCHEROO) += radone_atpx_handler.o
 
 obj-$(CONFIG_DRM_RADEON)+= radeon.o

drivers/gpu/drm/radeon/radeon.h

@@ -121,8 +121,19 @@ struct radeon_device;
  */
 #define ATRM_BIOS_PAGE 4096
 
+#if defined(CONFIG_VGA_SWITCHEROO)
 bool radeon_atrm_supported(struct pci_dev *pdev);
 int radeon_atrm_get_bios_chunk(uint8_t *bios, int offset, int len);
+#else
+static inline bool radeon_atrm_supported(struct pci_dev *pdev)
+{
+	return false;
+}
+
+static inline int radeon_atrm_get_bios_chunk(uint8_t *bios, int offset, int len){
+	return -EINVAL;
+}
+#endif
 bool radeon_get_bios(struct radeon_device *rdev);
 
 

drivers/gpu/drm/radeon/radeon_atpx_handler.c

@@ -6,7 +6,6 @@
  *
  * ATPX support for both Intel/ATI
  */
-
 #include <linux/vga_switcheroo.h>
 #include <acpi/acpi.h>
 #include <acpi/acpi_bus.h>

drivers/gpu/drm/radeon/radeon_drv.h

@@ -463,8 +463,14 @@ extern void r600_blit_swap(struct drm_device *dev,
 			   int w, int h, int src_pitch, int dst_pitch, int cpp);
 
 /* atpx handler */
+#if defined(CONFIG_VGA_SWITCHEROO)
 void radeon_register_atpx_handler(void);
 void radeon_unregister_atpx_handler(void);
+#else
+static inline void radeon_register_atpx_handler(void) {}
+static inline void radeon_unregister_atpx_handler(void) {}
+#endif
+
 /* Flags for stats.boxes
  */
 #define RADEON_BOX_DMA_IDLE      0x1

drivers/gpu/vga/vga_switcheroo.c

@@ -25,9 +25,6 @@
 #include <linux/debugfs.h>
 #include <linux/fb.h>
 
-#include <acpi/acpi.h>
-#include <acpi/acpi_bus.h>
-
 #include <linux/pci.h>
 #include <linux/vga_switcheroo.h>
 

include/linux/vga_switcheroo.h

@@ -7,7 +7,6 @@
  * vga_switcheroo.h - Support for laptop with dual GPU using one set of outputs
  */
 
-#include <acpi/acpi.h>
 #include <linux/fb.h>
 
 enum vga_switcheroo_state {