Commit e8f834b5 authored by Thomas Zimmermann's avatar Thomas Zimmermann
Browse files

drm/mgag200: Use adjusted mode values for CRTCs 



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: default avatarThomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: default avatarJocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240718104551.575912-4-tzimmermann@suse.de
parent b345b354

drivers/gpu/drm/mgag200/mgag200_mode.c

+8 −8
Original line number Diff line number Diff line
@@ -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);