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authorCorentin Chary <corentin.chary@gmail.com>2012-06-13 09:32:02 +0200
committerMatthew Garrett <mjg@redhat.com>2012-07-28 00:11:48 -0400
commita60b21763cce01c64cc537869662b41429c62e5f (patch)
treece4f466fd454dcb0cbf0759c9d530c698cf31b71
parentf838eb5bd257e8a666aa8c451058fa198df7e299 (diff)
downloadlinux-linaro-stable-a60b21763cce01c64cc537869662b41429c62e5f.tar.gz
drivers-platform-x86: use acpi_video_dmi_promote_vendor()
Instead of using directly acpi_video_unregister(), use acpi_video_dmi_promote_vendor() (and make it call acpi_video_unregister() if needed) Signed-off-by: Corentin Chary <corentin.chary@gmail.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
-rw-r--r--drivers/platform/x86/acer-wmi.c16
-rw-r--r--drivers/platform/x86/apple-gmux.c6
-rw-r--r--drivers/platform/x86/samsung-laptop.c22
3 files changed, 27 insertions, 17 deletions
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 175809dd5587..377d92d8d9b1 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -2191,14 +2191,16 @@ static int __init acer_wmi_init(void)
set_quirks();
+ if (dmi_check_system(video_vendor_dmi_table))
+ acpi_video_dmi_promote_vendor();
if (acpi_video_backlight_support()) {
- if (dmi_check_system(video_vendor_dmi_table)) {
- acpi_video_unregister();
- } else {
- interface->capability &= ~ACER_CAP_BRIGHTNESS;
- pr_info("Brightness must be controlled by "
- "acpi video driver\n");
- }
+ interface->capability &= ~ACER_CAP_BRIGHTNESS;
+ pr_info("Brightness must be controlled by acpi video driver\n");
+ } else {
+#ifdef CONFIG_ACPI_VIDEO
+ pr_info("Disabling ACPI video driver\n");
+ acpi_video_unregister();
+#endif
}
if (wmi_has_guid(WMID_GUID3)) {
diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c
index 694a15a56230..905fa01ac8df 100644
--- a/drivers/platform/x86/apple-gmux.c
+++ b/drivers/platform/x86/apple-gmux.c
@@ -193,7 +193,10 @@ static int __devinit gmux_probe(struct pnp_dev *pnp,
* backlight control and supports more levels than other options.
* Disable the other backlight choices.
*/
+ acpi_video_dmi_promote_vendor();
+#ifdef CONFIG_ACPI_VIDEO
acpi_video_unregister();
+#endif
apple_bl_unregister();
return 0;
@@ -213,7 +216,10 @@ static void __devexit gmux_remove(struct pnp_dev *pnp)
release_region(gmux_data->iostart, gmux_data->iolen);
kfree(gmux_data);
+ acpi_video_dmi_demote_vendor();
+#ifdef CONFIG_ACPI_VIDEO
acpi_video_register();
+#endif
apple_bl_register();
}
diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
index e2a34b42ddc1..2cbccc1b4b68 100644
--- a/drivers/platform/x86/samsung-laptop.c
+++ b/drivers/platform/x86/samsung-laptop.c
@@ -26,7 +26,7 @@
#include <linux/seq_file.h>
#include <linux/debugfs.h>
#include <linux/ctype.h>
-#if (defined CONFIG_ACPI_VIDEO || defined CONFIG_ACPI_VIDEO_MODULE)
+#ifdef CONFIG_ACPI_VIDEO
#include <acpi/video.h>
#endif
@@ -1530,15 +1530,18 @@ static int __init samsung_init(void)
samsung->quirks = quirks;
-#if (defined CONFIG_ACPI_VIDEO || defined CONFIG_ACPI_VIDEO_MODULE)
+#ifdef CONFIG_ACPI
+ if (samsung->quirks->broken_acpi_video)
+ acpi_video_dmi_promote_vendor();
+
/* Don't handle backlight here if the acpi video already handle it */
if (acpi_video_backlight_support()) {
- if (samsung->quirks->broken_acpi_video) {
- pr_info("Disabling ACPI video driver\n");
- acpi_video_unregister();
- } else {
- samsung->handle_backlight = false;
- }
+ samsung->handle_backlight = false;
+ } else if (samsung->quirks->broken_acpi_video) {
+ pr_info("Disabling ACPI video driver\n");
+#ifdef CONFIG_ACPI_VIDEO
+ acpi_video_unregister();
+#endif
}
#endif
@@ -1552,8 +1555,7 @@ static int __init samsung_init(void)
#ifdef CONFIG_ACPI
/* Only log that if we are really on a sabi platform */
- if (acpi_video_backlight_support() &&
- !samsung->quirks->broken_acpi_video)
+ if (acpi_video_backlight_support())
pr_info("Backlight controlled by ACPI video driver\n");
#endif