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authorBen Skeggs <bskeggs@redhat.com>2012-02-01 09:08:59 +0400
committerBen Skeggs <bskeggs@redhat.com>2012-02-01 09:23:58 +0400
commitce2e7895faba8fabaa917f52293126e5f4174fa9 (patch)
tree45d262375909f6e23187f419fd206d8403f68e4e
parent7df898b1a70b13c3a8892625f4ead929d9554293 (diff)
downloadlinux-ce2e7895faba8fabaa917f52293126e5f4174fa9.tar.xz
drm/nouveau/mxm: pretend to succeed, even if we can't shadow the MXM-SIS
There's at least one known case where our shadowing code is buggy, and we fail init. Until we can be confident we're doing all this correctly, lets succeed and risk crazy bios tables rather than failing for perfectly valid configs too. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_mxm.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_mxm.c b/drivers/gpu/drm/nouveau/nouveau_mxm.c
index 8bccddf4eff0..e5a64f0f4cb7 100644
--- a/drivers/gpu/drm/nouveau/nouveau_mxm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_mxm.c
@@ -656,7 +656,16 @@ nouveau_mxm_init(struct drm_device *dev)
if (mxm_shadow(dev, mxm[0])) {
MXM_MSG(dev, "failed to locate valid SIS\n");
+#if 0
+ /* we should, perhaps, fall back to some kind of limited
+ * mode here if the x86 vbios hasn't already done the
+ * work for us (so we prevent loading with completely
+ * whacked vbios tables).
+ */
return -EINVAL;
+#else
+ return 0;
+#endif
}
MXM_MSG(dev, "MXMS Version %d.%d\n",