Merge tag 'v2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[mv-sheeva.git] / drivers / acpi / video_detect.c

diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index b836761265988590cea46dbcffc39d30ea3c5578..5af3479714f6dbd81268ef482603865258c4ee71 100644 (file)
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -17,15 +17,14 @@
  * capabilities the graphics cards plugged in support. The check for general
  * video capabilities will be triggered by the first caller of
  * acpi_video_get_capabilities(NULL); which will happen when the first
- * backlight (or display output) switching supporting driver calls:
+ * backlight switching supporting driver calls:
  * acpi_video_backlight_support();
  *
  * Depending on whether ACPI graphics extensions (cmp. ACPI spec Appendix B)
  * are available, video.ko should be used to handle the device.
  *
  * Otherwise vendor specific drivers like thinkpad_acpi, asus_acpi,
- * sony_acpi,... can take care about backlight brightness and display output
- * switching.
+ * sony_acpi,... can take care about backlight brightness.
  *
  * If CONFIG_ACPI_VIDEO is neither set as "compiled in" (y) nor as a module (m)
  * this file will not be compiled, acpi_video_get_capabilities() and
@@ -161,8 +160,6 @@ long acpi_video_get_capabilities(acpi_handle graphics_handle)
                 *
                 *   if (dmi_name_in_vendors("XY")) {
                 *      acpi_video_support |=
-                *              ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR;
-                *      acpi_video_support |=
                 *              ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
                 *}
                 */
@@ -212,33 +209,8 @@ int acpi_video_backlight_support(void)
 EXPORT_SYMBOL(acpi_video_backlight_support);
 
 /*
- * Returns true if video.ko can do display output switching.
- * This does not work well/at all with binary graphics drivers
- * which disable system io ranges and do it on their own.
- */
-int acpi_video_display_switch_support(void)
-{
-       if (!acpi_video_caps_checked)
-               acpi_video_get_capabilities(NULL);
-
-       if (acpi_video_support & ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR)
-               return 0;
-       else if (acpi_video_support & ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO)
-               return 1;
-
-       if (acpi_video_support & ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR)
-               return 0;
-       else if (acpi_video_support & ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO)
-               return 1;
-
-       return acpi_video_support & ACPI_VIDEO_OUTPUT_SWITCHING;
-}
-EXPORT_SYMBOL(acpi_video_display_switch_support);
-
-/*
- * Use acpi_display_output=vendor/video or acpi_backlight=vendor/video
- * To force that backlight or display output switching is processed by vendor
- * specific acpi drivers or video.ko driver.
+ * Use acpi_backlight=vendor/video to force that backlight switching
+ * is processed by vendor specific acpi drivers or video.ko driver.
  */
 static int __init acpi_backlight(char *str)
 {
@@ -255,19 +227,3 @@ static int __init acpi_backlight(char *str)
        return 1;
 }
 __setup("acpi_backlight=", acpi_backlight);
-
-static int __init acpi_display_output(char *str)
-{
-       if (str == NULL || *str == '\0')
-               return 1;
-       else {
-               if (!strcmp("vendor", str))
-                       acpi_video_support |=
-                               ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR;
-               if (!strcmp("video", str))
-                       acpi_video_support |=
-                               ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO;
-       }
-       return 1;
-}
-__setup("acpi_display_output=", acpi_display_output);