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drm/mgag200: Update mode registers after plane registers

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Setting the plane registers first and the mode registers afterwards
reproduces the sequence used by atomic helpers. Done in preparation
of switching to simple KMS helpers.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: John Donnelly <John.p.donnelly@oracle.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Emil Velikov <emil.velikov@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200515083233.32036-7-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2020-05-15 10:32:24 +02:00
parent db05f8d3dc
commit ddb8d0520b
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/mgag200/mgag200_mode.c
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@ -1145,8 +1145,6 @@ static int mga_crtc_mode_set(struct drm_crtc *crtc,
WREG_CRT(15, 0);
WREG_CRT(19, pitch & 0xFF);
mgag200_set_mode_regs(mdev, mode);
ext_vga[0] = 0;
/* TODO interlace */
@ -1182,6 +1180,8 @@ static int mga_crtc_mode_set(struct drm_crtc *crtc,
mga_crtc_do_set_base(mdev, fb, old_fb);
mgag200_set_mode_regs(mdev, mode);
/* reset tagfifo */
if (mdev->type == G200_ER) {
u32 mem_ctl = RREG32(MGAREG_MEMCTL);