platform/x86: lenovo-yogabook: Set default keyboard backligh brightness on probe()

[ Upstream commit 9e6380d6573181c555ca1b5019b08d19a9ee581c ]

Set default keyboard backlight brightness on probe(), this fixes
the backlight being off after a rmmod + modprobe.

Fixes: c0549b72d99d ("platform/x86: lenovo-yogabook-wmi: Add driver for Lenovo Yoga Book")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230430165807.472798-5-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/platform/x86/lenovo-yogabook-wmi.c b/drivers/platform/x86/lenovo-yogabook-wmi.c
index 5948ffa..d57fcc8 100644 (file)
--- a/drivers/platform/x86/lenovo-yogabook-wmi.c
+++ b/drivers/platform/x86/lenovo-yogabook-wmi.c
@@ -295,6 +295,9 @@ static int yogabook_wmi_probe(struct wmi_device *wdev, const void *context)
        }
        data->backside_hall_irq = r;
 
+       /* Set default brightness before enabling the IRQ */
+       yogabook_wmi_set_kbd_backlight(data->wdev, YB_KBD_BL_DEFAULT);
+
        r = request_irq(data->backside_hall_irq, yogabook_backside_hall_irq,
                        IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
                        "backside_hall_sw", data);