diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2020-07-07 10:24:08 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2020-07-14 09:13:40 +0200 |
| commit | 153fef4115e886de8db2e5c58dc3bc63e7a68a09 (patch) | |
| tree | 47c77916ada14f87bcff772a43d517c3b3e570df /drivers/gpu/drm/mgag200/mgag200_reg.h | |
| parent | 379ba8043db2251302dbe623013effa696e52b2a (diff) | |
drm/mgag200: Split DPMS function into helpers
Of the DPMS code, only ON and OFF states are used. Simplify mode setting
by moving both into separate functions and removing the rest.
The original code busy waited in the middle of updating the screen state
in SEQ1. To simplify the procedure, the new code busy waits first and then
updates SEQ1 in one chunk.
The DPMS code also set the LUT before enabling the screen. The patch moves
this code into the simple-display pipe's enable function.
v2:
* comment on SEQ1 updates in commit message
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200707082411.6583-5-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm/mgag200/mgag200_reg.h')
| -rw-r--r-- | drivers/gpu/drm/mgag200/mgag200_reg.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/mgag200/mgag200_reg.h b/drivers/gpu/drm/mgag200/mgag200_reg.h index fb5da410804c..9f0be1878854 100644 --- a/drivers/gpu/drm/mgag200/mgag200_reg.h +++ b/drivers/gpu/drm/mgag200/mgag200_reg.h @@ -250,6 +250,9 @@ #define MGAREG_CRTCEXT0_OFFSET_MASK GENMASK(5, 4) +#define MGAREG_CRTCEXT1_VSYNCOFF BIT(5) +#define MGAREG_CRTCEXT1_HSYNCOFF BIT(4) + /* Cursor X and Y position */ #define MGA_CURPOSXL 0x3c0c #define MGA_CURPOSXH 0x3c0d |