drm/nva3/pm: fixup for NVAF special
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nva3_pm.c b/drivers/gpu/drm/nouveau/nva3_pm.c
index ec684f5..618c144 100644
--- a/drivers/gpu/drm/nouveau/nva3_pm.c
+++ b/drivers/gpu/drm/nouveau/nva3_pm.c
@@ -46,8 +46,14 @@
u32 sctl, sdiv, sclk;
/* refclk for the 0xe8xx plls is a fixed frequency */
- if (clk >= 0x40)
+ if (clk >= 0x40) {
+ if (dev_priv->chipset == 0xaf) {
+ /* no joke.. seriously.. sigh.. */
+ return nv_rd32(dev, 0x00471c) * 1000;
+ }
+
return dev_priv->crystal;
+ }
sctl = nv_rd32(dev, 0x4120 + (clk * 4));
if (!ignore_en && !(sctl & 0x00000100))