Check the ASUS_WMI_DEVID_EGPU_CONNECTED method for eGPU connection
before allowing the ASUS_WMI_DEVID_EGPU method to run.
Signed-off-by: Luke D. Jones <luke@xxxxxxxxxx>
---
drivers/platform/x86/asus-wmi.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 0c8a4a46b121..821addb284d7 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -693,6 +693,15 @@ static ssize_t egpu_enable_store(struct device *dev,
if (enable > 1)
return -EINVAL;
+ err = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU_CONNECTED);
+ if (err < 0)
+ return err;
+ if (err < 1) {
+ err = -ENODEV;
+ pr_warn("Failed to set egpu disable: %d\n", err);
+ return err;
+ }
+
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_EGPU, enable, &result);
if (err) {
pr_warn("Failed to set egpu disable: %d\n", err);
--
2.40.1
