[PATCH v2 4/5] fbdev: tdfxfb: Wake the VGA core before programming the CRTC

[Daniel Palmer]

If the card was unbooted the VGA core needs to be woken up before
poking at it.

Signed-off-by: Daniel Palmer <daniel@xxxxxxxx>
---
 drivers/video/fbdev/tdfxfb.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/video/fbdev/tdfxfb.c b/drivers/video/fbdev/tdfxfb.c
index 4d92ab5b5430..f2b658a47135 100644
--- a/drivers/video/fbdev/tdfxfb.c
+++ b/drivers/video/fbdev/tdfxfb.c
@@ -485,6 +485,10 @@ static void do_write_regs(struct fb_info *info, struct banshee_reg *reg)
 
 	tdfx_outl(par, MISCINIT1, tdfx_inl(par, MISCINIT1) | 0x01);
 
+	/* Wake the VGA core if it hasn't already been woken up */
+	tdfx_outl(par, VGAINIT0, reg->vgainit0);
+	vga_outb(par, 0x3c3, 0x01);
+
 	crt_outb(par, 0x11, crt_inb(par, 0x11) & 0x7f); /* CRT unprotect */
 
 	banshee_make_room(par, 3);
-- 
2.53.0