[PULL 18/27] ati-vga: Also switch mode on HW cursor enable bit change

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

From: BALATON Zoltan <balaton@eik.bme.hu>

This does nothing for most drivers but works around issue and fixes
output with the Solaris R128 driver that only sets display parameters
after enabling CRT controller which we would miss otherwise.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Tested-by: Chad Jablonski <chad@jablonski.xyz>
Reviewed-by: Chad Jablonski <chad@jablonski.xyz>
Message-ID: <ad3f415749178984c764f4ba810c663d1299ddfd.1774110169.git.balaton@eik.bme.hu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/display/ati.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/display/ati.c b/hw/display/ati.c
index 05cf507bd47..1a6a5ad4fd6 100644
--- a/hw/display/ati.c
+++ b/hw/display/ati.c
@@ -617,6 +617,7 @@ static void ati_mm_write(void *opaque, hwaddr addr,
         ati_reg_write_offs(&s->regs.crtc_gen_cntl,
                            addr - CRTC_GEN_CNTL, data, size);
         if ((val & CRTC2_CUR_EN) != (s->regs.crtc_gen_cntl & CRTC2_CUR_EN)) {
+            ati_vga_switch_mode(s);
             if (s->cursor_guest_mode) {
                 s->vga.force_shadow = !!(s->regs.crtc_gen_cntl & CRTC2_CUR_EN);
             } else {
-- 
2.53.0