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-rw-r--r--0001-platform-x86-asus-wmi-Only-Tell-EC-the-OS-will-handl.patch106
1 files changed, 106 insertions, 0 deletions
diff --git a/0001-platform-x86-asus-wmi-Only-Tell-EC-the-OS-will-handl.patch b/0001-platform-x86-asus-wmi-Only-Tell-EC-the-OS-will-handl.patch
new file mode 100644
index 000000000..d6195e56a
--- /dev/null
+++ b/0001-platform-x86-asus-wmi-Only-Tell-EC-the-OS-will-handl.patch
@@ -0,0 +1,106 @@
+From d004ab4e282082ddb645ff48d3f62a28fc5d69ef Mon Sep 17 00:00:00 2001
+From: Hans de Goede <hdegoede@redhat.com>
+Date: Wed, 15 May 2019 12:27:23 +0200
+Subject: [PATCH] platform/x86: asus-wmi: Only Tell EC the OS will handle
+ display hotkeys from asus_nb_wmi
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Commit 78f3ac76d9e5 ("platform/x86: asus-wmi: Tell the EC the OS will
+handle the display off hotkey") causes the backlight to be permanently off
+on various EeePC laptop models using the eeepc-wmi driver (Asus EeePC
+1015BX, Asus EeePC 1025C).
+
+The asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL) call added
+by that commit is made conditional in this commit and only enabled in
+the quirk_entry structs in the asus-nb-wmi driver fixing the broken
+display / backlight on various EeePC laptop models.
+
+Cc: João Paulo Rechi Vita <jprvita@endlessm.com>
+Fixes: 78f3ac76d9e5 ("platform/x86: asus-wmi: Tell the EC the OS will handle the display off hotkey")
+Signed-off-by: Hans de Goede <hdegoede@redhat.com>
+---
+ drivers/platform/x86/asus-nb-wmi.c | 8 ++++++++
+ drivers/platform/x86/asus-wmi.c | 2 +-
+ drivers/platform/x86/asus-wmi.h | 1 +
+ 3 files changed, 10 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c
+index 81642102bf65..8d9e30dbb5af 100644
+--- a/drivers/platform/x86/asus-nb-wmi.c
++++ b/drivers/platform/x86/asus-nb-wmi.c
+@@ -65,10 +65,12 @@ static bool asus_q500a_i8042_filter(unsigned char data, unsigned char str,
+
+ static struct quirk_entry quirk_asus_unknown = {
+ .wapf = 0,
++ .wmi_backlight_set_devstate = true,
+ };
+
+ static struct quirk_entry quirk_asus_q500a = {
+ .i8042_filter = asus_q500a_i8042_filter,
++ .wmi_backlight_set_devstate = true,
+ };
+
+ /*
+@@ -79,26 +81,32 @@ static struct quirk_entry quirk_asus_q500a = {
+ static struct quirk_entry quirk_asus_x55u = {
+ .wapf = 4,
+ .wmi_backlight_power = true,
++ .wmi_backlight_set_devstate = true,
+ .no_display_toggle = true,
+ };
+
+ static struct quirk_entry quirk_asus_wapf4 = {
+ .wapf = 4,
++ .wmi_backlight_set_devstate = true,
+ };
+
+ static struct quirk_entry quirk_asus_x200ca = {
+ .wapf = 2,
++ .wmi_backlight_set_devstate = true,
+ };
+
+ static struct quirk_entry quirk_asus_ux303ub = {
+ .wmi_backlight_native = true,
++ .wmi_backlight_set_devstate = true,
+ };
+
+ static struct quirk_entry quirk_asus_x550lb = {
++ .wmi_backlight_set_devstate = true,
+ .xusb2pr = 0x01D9,
+ };
+
+ static struct quirk_entry quirk_asus_forceals = {
++ .wmi_backlight_set_devstate = true,
+ .wmi_force_als_set = true,
+ };
+
+diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
+index 3e4336025e8f..9b18a184e0aa 100644
+--- a/drivers/platform/x86/asus-wmi.c
++++ b/drivers/platform/x86/asus-wmi.c
+@@ -2146,7 +2146,7 @@ static int asus_wmi_add(struct platform_device *pdev)
+ err = asus_wmi_backlight_init(asus);
+ if (err && err != -ENODEV)
+ goto fail_backlight;
+- } else
++ } else if (asus->driver->quirks->wmi_backlight_set_devstate)
+ err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL);
+
+ if (asus_wmi_has_fnlock_key(asus)) {
+diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h
+index 0930be770688..4f31b68642a0 100644
+--- a/drivers/platform/x86/asus-wmi.h
++++ b/drivers/platform/x86/asus-wmi.h
+@@ -31,6 +31,7 @@ struct quirk_entry {
+ bool store_backlight_power;
+ bool wmi_backlight_power;
+ bool wmi_backlight_native;
++ bool wmi_backlight_set_devstate;
+ bool wmi_force_als_set;
+ int wapf;
+ /*
+--
+2.21.0
+