HID: amd_sfh: Handle "no sensors" in PM operations

Resume or suspend each sensor device based on the num_hid_devices.
Therefore, add a check to handle the special case where no sensors are
present.

Fixes: 93ce5e0 ("HID: amd_sfh: Implement SFH1.1 functionality")
Signed-off-by: Basavaraj Natikar <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>

Author: basuamd

drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c

@@ -227,6 +227,11 @@ static void amd_sfh_resume(struct amd_mp2_dev *mp2)
 	struct amd_mp2_sensor_info info;
 	int i, status;
 
+	if (!cl_data->is_any_sensor_enabled) {
+		amd_sfh_clear_intr(mp2);
+		return;
+	}
+
 	for (i = 0; i < cl_data->num_hid_devices; i++) {
 		if (cl_data->sensor_sts[i] == SENSOR_DISABLED) {
 			info.sensor_idx = cl_data->sensor_idx[i];
@@ -252,6 +257,11 @@ static void amd_sfh_suspend(struct amd_mp2_dev *mp2)
 	struct amdtp_cl_data *cl_data = mp2->cl_data;
 	int i, status;
 
+	if (!cl_data->is_any_sensor_enabled) {
+		amd_sfh_clear_intr(mp2);
+		return;
+	}
+
 	for (i = 0; i < cl_data->num_hid_devices; i++) {
 		if (cl_data->sensor_idx[i] != HPD_IDX &&
 		    cl_data->sensor_sts[i] == SENSOR_ENABLED) {