[PATCH 14/16] drm/udl: Add register constants for video locks

[Thomas Zimmermann]

Add register constants for the video lock. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
 drivers/gpu/drm/udl/udl_modeset.c | 4 ++--
 drivers/gpu/drm/udl/udl_proto.h   | 5 +++++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c
index 1e28eb1e295f..b6aebfaae03d 100644
--- a/drivers/gpu/drm/udl/udl_modeset.c
+++ b/drivers/gpu/drm/udl/udl_modeset.c
@@ -41,12 +41,12 @@ static char *udl_set_register(char *buf, u8 reg, u8 val)
 
 static char *udl_vidreg_lock(char *buf)
 {
-	return udl_set_register(buf, 0xFF, 0x00);
+	return udl_set_register(buf, UDL_REG_VIDREG, UDL_VIDREG_LOCK);
 }
 
 static char *udl_vidreg_unlock(char *buf)
 {
-	return udl_set_register(buf, 0xFF, 0xFF);
+	return udl_set_register(buf, UDL_REG_VIDREG, UDL_VIDREG_UNLOCK);
 }
 
 static char *udl_set_blank_mode(char *buf, u8 mode)
diff --git a/drivers/gpu/drm/udl/udl_proto.h b/drivers/gpu/drm/udl/udl_proto.h
index 22bc1ae8420c..8e7d1a090644 100644
--- a/drivers/gpu/drm/udl/udl_proto.h
+++ b/drivers/gpu/drm/udl/udl_proto.h
@@ -31,4 +31,9 @@
 #define UDL_BLANKMODE_HSYNC_OFF		0x05 /* hsync off, blanked */
 #define UDL_BLANKMODE_POWERDOWN		0x07 /* powered off; requires modeset */
 
+/* Lock/unlock video registers */
+#define UDL_REG_VIDREG			0xff
+#define UDL_VIDREG_LOCK			0x00
+#define UDL_VIDREG_UNLOCK		0xff
+
 #endif
-- 
2.37.3