From patchwork Mon Jun 13 11:44:00 2016
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Subject: hp-wmi: fix wifi cannot be hard-unblock
From: Alex Hung <alex.hung@canonical.com>
X-Patchwork-Id: 9172765
Message-Id: <1465818240-11994-1-git-send-email-alex.hung@canonical.com>
To: dvhart@infradead.org, platform-driver-x86@vger.kernel.org,
 alex.hung@canonical.com, david.ward@ll.mit.edu
Date: Mon, 13 Jun 2016 19:44:00 +0800

Several users reported wifi cannot be unblocked as discussed in [1].
This patch removes the useof 2009 flag by BIOS but uses the actual WMI
function calls - it will be skipped if WMI reports unsupported

[1] https://bugzilla.kernel.org/show_bug.cgi?id=69131

Signed-off-by: Alex Hung <alex.hung@canonical.com>
---
 drivers/platform/x86/hp-wmi.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 6f145f2..96ffda4 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -718,6 +718,11 @@ static int __init hp_wmi_rfkill_setup(struct platform_device *device)
 	if (err)
 		return err;
 
+	err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, &wireless,
+				   sizeof(wireless), 0);
+	if (err)
+		return err;
+
 	if (wireless & 0x1) {
 		wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev,
 					   RFKILL_TYPE_WLAN,
@@ -882,7 +887,7 @@ static int __init hp_wmi_bios_setup(struct platform_device *device)
 	wwan_rfkill = NULL;
 	rfkill2_count = 0;
 
-	if (hp_wmi_bios_2009_later() || hp_wmi_rfkill_setup(device))
+	if (hp_wmi_rfkill_setup(device))
 		hp_wmi_rfkill2_setup(device);
 
 	err = device_create_file(&device->dev, &dev_attr_display);