[PATCH AUTOSEL 5.13 46/88] platform/x86: ideapad-laptop: Fix Legion 5 Fn lock LED

Sasha Levin
2021-09-10T00:51:11Z

From: Meng Dong <whenov@gmail.com>

[ Upstream commit 3ae86d2d4704796ee658a34245cb86e68c40c5d7 ]

This patch fixes the bug 212671.
Althrough the Fn lock (Fn + Esc) works on Legion 5 (R7000P), its LED
light does not change with the state. This modification sets the Fn lock
state to its current value on receiving the wmi event
8FC0DE0C-B4E4-43FD-B0F3-8871711C1294 to update the LED state.

Signed-off-by: Meng Dong <whenov@gmail.com>
Link: https://lore.kernel.org/r/20210817171203.12855-1-whenov@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/platform/x86/ideapad-laptop.c | 9 +++++++++
1 file changed, 9 insertions(+)

diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 387817290921..15de129e5777 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -41,6 +41,7 @@
static const char *const ideapad_wmi_fnesc_events[] = {
"26CAB2E5-5CF1-46AE-AAC3-4A12B6BA50E6", /* Yoga 3 */
"56322276-8493-4CE8-A783-98C991274F5E", /* Yoga 700 */
+ "8FC0DE0C-B4E4-43FD-B0F3-8871711C1294", /* Legion 5 */
};
#endif

@@ -1447,11 +1448,19 @@ static void ideapad_acpi_notify(acpi_handle handle, u32 event, void *data)
static void ideapad_wmi_notify(u32 value, void *context)
{
struct ideapad_private *priv = context;
+ unsigned long result;

switch (value) {
case 128:
ideapad_input_report(priv, value);
break;
+ case 208:
+ if (!eval_hals(priv->adev->handle, &result)) {
+ bool state = test_bit(HALS_FNLOCK_STATE_BIT, &result);
+
+ exec_sals(priv->adev->handle, state ? SALS_FNLOCK_ON : SALS_FNLOCK_OFF);
+ }
+ break;
default:
dev_info(&priv->platform_device->dev,
"Unknown WMI event: %u\n", value);
--
2.30.2