HID: rmi: print an error if F11 is not found instead of stopping the device
Currently rmi_probe will return -EIO if the device doesn't report that it has F11.
This would indicate that something happened and the device is in the bootloader.
We can recover the device using a userspace firmware update tool, but it needs
access to the device through the hidraw device file. If the probe returns -EIO
the hidraw device won't be created. So instead of failing the probe, just print
an error message, but leave the device accessible from userspace.
Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c
index 0dc2514..8389e81 100644
--- a/drivers/hid/hid-rmi.c
+++ b/drivers/hid/hid-rmi.c
@@ -909,10 +909,15 @@
return ret;
}
- if (!test_bit(RMI_STARTED, &data->flags)) {
- hid_hw_stop(hdev);
- return -EIO;
- }
+ if (!test_bit(RMI_STARTED, &data->flags))
+ /*
+ * The device maybe in the bootloader if rmi_input_configured
+ * failed to find F11 in the PDT. Print an error, but don't
+ * return an error from rmi_probe so that hidraw will be
+ * accessible from userspace. That way a userspace tool
+ * can be used to reload working firmware on the touchpad.
+ */
+ hid_err(hdev, "Device failed to be properly configured\n");
return 0;
}