diff --git a/drivers/gpu/drm/i915/Makefile.header-test b/drivers/gpu/drm/i915/Makefile.header-test
index 226c4326129d..fa7542a6b262 100644
--- a/drivers/gpu/drm/i915/Makefile.header-test
+++ b/drivers/gpu/drm/i915/Makefile.header-test
@@ -29,6 +29,7 @@ header_test := \
 	intel_dpll_mgr.h \
 	intel_drv.h \
 	intel_dsi.h \
+	intel_dsi_dcs_backlight.h \
 	intel_dvo.h \
 	intel_dvo_dev.h \
 	intel_fbc.h \
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 91474a98079b..71ae3beae92c 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1766,9 +1766,6 @@ unsigned int i9xx_plane_max_stride(struct intel_plane *plane,
 				   u32 pixel_format, u64 modifier,
 				   unsigned int rotation);
 
-/* intel_dsi_dcs_backlight.c */
-int intel_dsi_dcs_init_backlight_funcs(struct intel_connector *intel_connector);
-
 /* intel_runtime_pm.c */
 void intel_runtime_pm_init_early(struct drm_i915_private *dev_priv);
 int intel_power_domains_init(struct drm_i915_private *);
diff --git a/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c b/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c
index 150a156f3b1e..8c33262cb0b2 100644
--- a/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c
+++ b/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c
@@ -23,11 +23,13 @@
  * Author: Deepak M <m.deepak at intel.com>
  */
 
+#include <drm/drm_mipi_dsi.h>
+#include <video/mipi_display.h>
+
+#include "i915_drv.h"
 #include "intel_drv.h"
 #include "intel_dsi.h"
-#include "i915_drv.h"
-#include <video/mipi_display.h>
-#include <drm/drm_mipi_dsi.h>
+#include "intel_dsi_dcs_backlight.h"
 
 #define CONTROL_DISPLAY_BCTRL		(1 << 5)
 #define CONTROL_DISPLAY_DD		(1 << 3)
diff --git a/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.h b/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.h
new file mode 100644
index 000000000000..eb01947843bf
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2019 Intel Corporation
+ */
+
+#ifndef __INTEL_DSI_DCS_BACKLIGHT_H__
+#define __INTEL_DSI_DCS_BACKLIGHT_H__
+
+struct intel_connector;
+
+int intel_dsi_dcs_init_backlight_funcs(struct intel_connector *intel_connector);
+
+#endif /* __INTEL_DSI_DCS_BACKLIGHT_H__ */
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index 5a3e0f420cf0..9cd4e37e3934 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -37,6 +37,7 @@
 #include "intel_connector.h"
 #include "intel_dp_aux_backlight.h"
 #include "intel_drv.h"
+#include "intel_dsi_dcs_backlight.h"
 #include "intel_panel.h"
 
 #define CRC_PMIC_PWM_PERIOD_NS	21333