[PATCH -next] drm/radeon/dpm: Add missing #include <linux/seq_file.h>

[Geert Uytterhoeven]

ia64_defconfig:

drivers/gpu/drm/radeon/rv6xx_dpm.c: In function 'rv6xx_dpm_debugfs_print_current_performance_level':
drivers/gpu/drm/radeon/rv6xx_dpm.c:2041:3: error: implicit declaration of function 'seq_printf' [-Werror=implicit-function-declaration]

Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
---
http://kisskb.ellerman.id.au/kisskb/buildresult/9068726/

 drivers/gpu/drm/radeon/rv6xx_dpm.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/radeon/rv6xx_dpm.c b/drivers/gpu/drm/radeon/rv6xx_dpm.c
index 33705c5..0d09677 100644
--- a/drivers/gpu/drm/radeon/rv6xx_dpm.c
+++ b/drivers/gpu/drm/radeon/rv6xx_dpm.c
@@ -22,6 +22,7 @@
  * Authors: Alex Deucher
  */
 
+#include <linux/seq_file.h>
 #include "drmP.h"
 #include "radeon.h"
 #include "rv6xxd.h"
-- 
1.7.9.5

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