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drm/udl: Add register constants for video locks

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

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221006095355.23579-15-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2022-10-06 11:53:53 +02:00
parent ed24ed48be
commit cb7b995dcb
2 changed files with 7 additions and 2 deletions
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4
drivers/gpu/drm/udl/udl_modeset.c
View File

@ -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)

5
drivers/gpu/drm/udl/udl_proto.h
View File

@ -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