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drm: cirrus: add power management support
[firefly-linux-kernel-4.4.55.git]
/
drivers
/
gpu
/
drm
/
cirrus
/
cirrus_mode.c
diff --git
a/drivers/gpu/drm/cirrus/cirrus_mode.c
b/drivers/gpu/drm/cirrus/cirrus_mode.c
index 379a47ea99f6cc7e4df9e16c3452f0cd9e94ab72..b86f68d8b7262fcc96b2bbd6aaf0fc4b7f9680c5 100644
(file)
--- a/
drivers/gpu/drm/cirrus/cirrus_mode.c
+++ b/
drivers/gpu/drm/cirrus/cirrus_mode.c
@@
-308,6
+308,9
@@
static int cirrus_crtc_mode_set(struct drm_crtc *crtc,
WREG_HDR(hdr);
cirrus_crtc_do_set_base(crtc, old_fb, x, y, 0);
+
+ /* Unblank (needed on S3 resume, vgabios doesn't do it then) */
+ outb(0x20, 0x3c0);
return 0;
}