diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
index 485848f..777516a 100644
--- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c
+++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
@@ -122,6 +122,13 @@ static union acpi_object *radeon_atpx_call(acpi_handle handle, int function,
  */
 static void radeon_atpx_parse_functions(struct radeon_atpx_functions *f, u32 mask)
 {
+	printk("atpx mask 0x%08x\n", mask);
+
+	if (mask & ATPX_POWER_CONTROL_SUPPORTED)
+		printk("atpx power control supported\n");
+	else
+		printk("atpx power control not supported\n");
+
 	f->px_params = mask & ATPX_GET_PX_PARAMETERS_SUPPORTED;
 	f->power_cntl = mask & ATPX_POWER_CONTROL_SUPPORTED;
 	f->disp_mux_cntl = mask & ATPX_DISPLAY_MUX_CONTROL_SUPPORTED;
@@ -180,6 +187,8 @@ static int radeon_atpx_validate(struct radeon_atpx *atpx)
 				  ATPX_DFP_SIGNAL_MUXED))
 			atpx->functions.disp_mux_cntl = true;
 
+		printk("valid bits 0x%08x\n", valid_bits);
+
 		kfree(info);
 	}
 	return 0;