From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Mon, 30 Jul 2018 11:53:06 +0100
Subject: drm/armada: update primary framebuffer parameters on mode change
Git-commit: dae2155bb07bb2063ce604049e9aa4e862b6db0a
Patch-mainline: v4.19-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

The framebuffer base address and toggling mode needs to be updated
when the interlaced flag for mode changes is updated.  Arrange to
reprogram these parameters when only the mode has changed.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/armada/armada_plane.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/armada/armada_plane.c
+++ b/drivers/gpu/drm/armada/armada_plane.c
@@ -184,11 +184,13 @@ static void armada_drm_primary_plane_ato
 		armada_reg_queue_set(regs, idx, val, LCD_SPU_GZM_HPXL_VLN);
 	if (old_state->src.x1 != state->src.x1 ||
 	    old_state->src.y1 != state->src.y1 ||
-	    old_state->fb != state->fb) {
+	    old_state->fb != state->fb ||
+	    state->crtc->state->mode_changed) {
 		idx += armada_drm_crtc_calc_fb(state, regs + idx,
 					       dcrtc->interlaced);
 	}
-	if (old_state->fb != state->fb) {
+	if (old_state->fb != state->fb ||
+	    state->crtc->state->mode_changed) {
 		cfg = CFG_GRA_FMT(drm_fb_to_armada_fb(state->fb)->fmt) |
 		      CFG_GRA_MOD(drm_fb_to_armada_fb(state->fb)->mod);
 		if (drm_fb_to_armada_fb(state->fb)->fmt > CFG_420)