Add no backlight quirks for various Asus machines (rhbz 1097436)

From: Hans de Goede <hdegoede@redhat.com>

asus-wmi-Add-a-no-backlight-quirk.patch

@@ -0,0 +1,69 @@
+Bugzilla: 1097436
+Upstream-status: Sent upstream for 3.16
+
+From f6fad201a0e4584e9826a2deb8ebbfccdb8cb13b Mon Sep 17 00:00:00 2001
+From: Hans de Goede <hdegoede@redhat.com>
+Date: Mon, 2 Jun 2014 17:41:01 +0200
+Subject: [PATCH 04/14] asus-wmi: Add a no backlight quirk
+
+Some Asus motherboards for desktop PC-s export an acpi-video and
+an asus-wmi interface advertising backlight support. Add a quirk to allow
+to blacklist these so that desktop environments such as gnome don't start
+showing nonsense brightness controls.
+
+https://bugzilla.redhat.com/show_bug.cgi?id=1097436
+
+Signed-off-by: Hans de Goede <hdegoede@redhat.com>
+---
+ drivers/platform/x86/asus-wmi.c | 8 ++++++--
+ drivers/platform/x86/asus-wmi.h | 1 +
+ 2 files changed, 7 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
+index c5e082fb82fa..6f73dc5125ca 100644
+--- a/drivers/platform/x86/asus-wmi.c
++++ b/drivers/platform/x86/asus-wmi.c
+@@ -1272,6 +1272,9 @@ static int asus_wmi_backlight_init(struct asus_wmi *asus)
+ 	int max;
+ 	int power;
+ 
++	if (asus->driver->quirks->no_backlight)
++		return -ENODEV;
++
+ 	max = read_brightness_max(asus);
+ 
+ 	if (max == -ENODEV)
+@@ -1370,7 +1373,7 @@ static void asus_wmi_notify(u32 value, void *context)
+ 		code = ASUS_WMI_BRN_DOWN;
+ 
+ 	if (code == ASUS_WMI_BRN_DOWN || code == ASUS_WMI_BRN_UP) {
+-		if (!acpi_video_backlight_support()) {
++		if (asus->backlight_device) {
+ 			asus_wmi_backlight_notify(asus, orig_code);
+ 			goto exit;
+ 		}
+@@ -1773,7 +1776,8 @@ static int asus_wmi_add(struct platform_device *pdev)
+ 	if (err)
+ 		goto fail_rfkill;
+ 
+-	if (asus->driver->quirks->wmi_backlight_power)
++	if (asus->driver->quirks->wmi_backlight_power ||
++			asus->driver->quirks->no_backlight)
+ 		acpi_video_dmi_promote_vendor();
+ 	if (!acpi_video_backlight_support()) {
+ 		pr_info("Disabling ACPI video driver\n");
+diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h
+index 4da4c8bafe70..cc47efe14974 100644
+--- a/drivers/platform/x86/asus-wmi.h
++++ b/drivers/platform/x86/asus-wmi.h
+@@ -42,6 +42,7 @@ struct quirk_entry {
+ 	bool scalar_panel_brightness;
+ 	bool store_backlight_power;
+ 	bool wmi_backlight_power;
++	bool no_backlight;
+ 	int wapf;
+ 	/*
+ 	 * For machines with AMD graphic chips, it will send out WMI event
+-- 
+1.9.0
+

eeepc-wmi-Add-no-backlight-quirk-for-Asus-H87I-PLUS-.patch

@@ -0,0 +1,50 @@
+Bugzilla: 1097463
+Upstream-status: Sent for 3.16
+
+From 7ad066ecd4dfb4c36fb00f9f9eb1a5d6099db834 Mon Sep 17 00:00:00 2001
+From: Hans de Goede <hdegoede@redhat.com>
+Date: Mon, 2 Jun 2014 17:41:02 +0200
+Subject: [PATCH 05/14] eeepc-wmi: Add no backlight quirk for Asus H87I-PLUS
+ Motherboard
+
+https://bugzilla.redhat.com/show_bug.cgi?id=1097436
+
+Signed-off-by: Hans de Goede <hdegoede@redhat.com>
+---
+ drivers/platform/x86/eeepc-wmi.c | 13 +++++++++++++
+ 1 file changed, 13 insertions(+)
+
+diff --git a/drivers/platform/x86/eeepc-wmi.c b/drivers/platform/x86/eeepc-wmi.c
+index 6112933f6278..a7286bbfe28e 100644
+--- a/drivers/platform/x86/eeepc-wmi.c
++++ b/drivers/platform/x86/eeepc-wmi.c
+@@ -114,6 +114,10 @@ static struct quirk_entry quirk_asus_x101ch = {
+ 	.wmi_backlight_power = true,
+ };
+ 
++static struct quirk_entry quirk_asus_no_backlight = {
++	.no_backlight = true,
++};
++
+ static struct quirk_entry *quirks;
+ 
+ static void et2012_quirks(void)
+@@ -182,6 +186,15 @@ static struct dmi_system_id asus_quirks[] = {
+ 		},
+ 		.driver_data = &quirk_asus_x101ch,
+ 	},
++	{
++		.callback = dmi_matched,
++		.ident = "ASUSTeK Computer INC. H87I-PLUS",
++		.matches = {
++			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),
++			DMI_MATCH(DMI_BOARD_NAME, "H87I-PLUS"),
++		},
++		.driver_data = &quirk_asus_no_backlight,
++	},
+ 	{},
+ };
+ 
+-- 
+1.9.0
+

kernel.spec

@@ -647,6 +647,8 @@ Patch26000: perf-lib64.patch
 Patch26001: thinkpad_acpi-Add-mappings-for-F9-F12-hotkeys-on-X24.patch
 Patch26002: samsung-laptop-Add-broken-acpi-video-quirk-for-NC210.patch
 Patch26003: ideapad-laptop-Blacklist-rfkill-control-on-the-Lenov.patch
+Patch26004: asus-wmi-Add-a-no-backlight-quirk.patch
+Patch26005: eeepc-wmi-Add-no-backlight-quirk-for-Asus-H87I-PLUS-.patch
 
 # END OF PATCH DEFINITIONS
 
@@ -1371,6 +1373,8 @@ ApplyPatch perf-lib64.patch
 ApplyPatch thinkpad_acpi-Add-mappings-for-F9-F12-hotkeys-on-X24.patch
 ApplyPatch samsung-laptop-Add-broken-acpi-video-quirk-for-NC210.patch
 ApplyPatch ideapad-laptop-Blacklist-rfkill-control-on-the-Lenov.patch
+ApplyPatch asus-wmi-Add-a-no-backlight-quirk.patch
+ApplyPatch eeepc-wmi-Add-no-backlight-quirk-for-Asus-H87I-PLUS-.patch
 
 # END OF PATCH APPLICATIONS