drm/radeon/radeon_kms: Move 'radeon_*_kms' prototypes to shared header

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/radeon/radeon_kms.c:756:5: warning: no previous prototype for ‘radeon_get_vblank_counter_kms’ [-Wmissing-prototypes]
 756 | u32 radeon_get_vblank_counter_kms(struct drm_crtc *crtc)
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/radeon_kms.c:826:5: warning: no previous prototype for ‘radeon_enable_vblank_kms’ [-Wmissing-prototypes]
 826 | int radeon_enable_vblank_kms(struct drm_crtc *crtc)
 | ^~~~~~~~~~~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/radeon_kms.c:853:6: warning: no previous prototype for ‘radeon_disable_vblank_kms’ [-Wmissing-prototypes]
 853 | void radeon_disable_vblank_kms(struct drm_crtc *crtc)
 | ^~~~~~~~~~~~~~~~~~~~~~~~~

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

3 files changed, 37 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index eb0d4cb95f0a..3a6fedad002d 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -44,6 +44,7 @@
 
 #include "atom.h"
 #include "radeon.h"
+#include "radeon_kms.h"
 
 static void avivo_crtc_load_lut(struct drm_crtc *crtc)
 {
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 0d8fbabffcea..82ece95aa273 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -41,6 +41,7 @@
 #include "radeon.h"
 #include "radeon_asic.h"
 #include "radeon_drv.h"
+#include "radeon_kms.h"
 
 #if defined(CONFIG_VGA_SWITCHEROO)
 bool radeon_has_atpx(void);
diff --git a/drivers/gpu/drm/radeon/radeon_kms.h b/drivers/gpu/drm/radeon/radeon_kms.h
new file mode 100644
index 000000000000..36e73cea9215
--- /dev/null
+++ b/drivers/gpu/drm/radeon/radeon_kms.h
@@ -0,0 +1,35 @@
+/* radeon_kms.h -- Private header for radeon driver -*- linux-c -*-
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Fremont, California.
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __RADEON_KMS_H__
+#define __RADEON_KMS_H__
+
+u32 radeon_get_vblank_counter_kms(struct drm_crtc *crtc);
+int radeon_enable_vblank_kms(struct drm_crtc *crtc);
+void radeon_disable_vblank_kms(struct drm_crtc *crtc);
+
+#endif				/* __RADEON_KMS_H__ */