diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index 102c744eaf5a14a7ee093c96db24bc2d40c6072d..f6f907e7217ab0e73d4039310b840fa734e4d70c 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -2455,7 +2455,7 @@ void radeon_combios_get_power_modes(struct radeon_device *rdev)
 	rdev->pm.power_state[state_index].clock_info[0].sclk = rdev->clock.default_sclk;
 	rdev->pm.power_state[state_index].default_clock_mode = &rdev->pm.power_state[state_index].clock_info[0];
 	if ((state_index > 0) &&
-	    (rdev->pm.power_state[0].clock_info[0].voltage.type = VOLTAGE_GPIO))
+	    (rdev->pm.power_state[0].clock_info[0].voltage.type == VOLTAGE_GPIO))
 		rdev->pm.power_state[state_index].clock_info[0].voltage =
 			rdev->pm.power_state[0].clock_info[0].voltage;
 	else