Commit 629c1b92 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nvd0/disp: handle sync polarity, kill off some unknown 



Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent f3fdc52d

drivers/gpu/drm/nouveau/nvd0_display.c

+10 −6
Original line number Diff line number Diff line
@@ -352,11 +352,15 @@ nvd0_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *umode, 
	u32 vss2be = vsyncw + vbackp;

	u32 hss2de = htotal - hfrntp;

	u32 vss2de = vtotal - vfrntp;

	u32 hstart = 0;

	u32 vstart = 0;

	u32 *push;

	u32 syncs, *push;

	int ret;



	syncs = 0x00000001;

	if (mode->flags & DRM_MODE_FLAG_NHSYNC)

		syncs |= 0x00000008;

	if (mode->flags & DRM_MODE_FLAG_NVSYNC)

		syncs |= 0x00000010;



	ret = nvd0_crtc_swap_fbs(crtc, old_fb);

	if (ret)

		return ret;
@@ -364,7 +368,7 @@ nvd0_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *umode, 
	push = evo_wait(crtc->dev, 0, 64);

	if (push) {

		evo_mthd(push, 0x0410 + (nv_crtc->index * 0x300), 5);

		evo_data(push, (vstart << 16) | hstart);

		evo_data(push, 0x00000000);

		evo_data(push, (vtotal << 16) | htotal);

		evo_data(push, (vsyncw << 16) | hsyncw);

		evo_data(push, (vss2be << 16) | hss2be);
@@ -375,8 +379,8 @@ nvd0_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *umode, 
		evo_data(push, mode->clock * 1000);

		evo_data(push, 0x00200000); /* ??? */

		evo_data(push, mode->clock * 1000);

		evo_mthd(push, 0x0408 + (nv_crtc->index * 0x300), 1);

		evo_data(push, 0x31ec6000); /* ??? */

		evo_mthd(push, 0x0404 + (nv_crtc->index * 0x300), 1);

		evo_data(push, syncs);

		evo_kick(push, crtc->dev, 0);

	}