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drm/mgag200: Use adjusted mode values for CRTCs

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Use the values with the crtc_ prefix from struct drm_display_mode to
program hardware. The DRM core adjusted these values to the requirements
of CRTC hardware.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240718104551.575912-4-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2024-07-18 12:44:13 +02:00
parent b345b3542d
commit e8f834b559
1 changed files with 8 additions and 8 deletions
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16
drivers/gpu/drm/mgag200/mgag200_mode.c
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@ -208,19 +208,19 @@ void mgag200_set_mode_regs(struct mga_device *mdev, const struct drm_display_mod
unsigned int vdispend, vsyncstr, vsyncend, vtotal;
u8 misc, crtcext1, crtcext2, crtcext5;
hdispend = mode->hdisplay / 8 - 1;
hsyncstr = mode->hsync_start / 8 - 1;
hsyncend = mode->hsync_end / 8 - 1;
htotal = mode->htotal / 8 - 1;
hdispend = mode->crtc_hdisplay / 8 - 1;
hsyncstr = mode->crtc_hsync_start / 8 - 1;
hsyncend = mode->crtc_hsync_end / 8 - 1;
htotal = mode->crtc_htotal / 8 - 1;
/* Work around hardware quirk */
if ((htotal & 0x07) == 0x06 || (htotal & 0x07) == 0x04)
htotal++;
vdispend = mode->vdisplay - 1;
vsyncstr = mode->vsync_start - 1;
vsyncend = mode->vsync_end - 1;
vtotal = mode->vtotal - 2;
vdispend = mode->crtc_vdisplay - 1;
vsyncstr = mode->crtc_vsync_start - 1;
vsyncend = mode->crtc_vsync_end - 1;
vtotal = mode->crtc_vtotal - 2;
misc = RREG8(MGA_MISC_IN);