Patch "drm/nouveau/nv1a,nv1f/disp: fix memory clock rate retrieval" has been added to the 4.9-stable tree

This is a note to let you know that I've just added the patch titled

drm/nouveau/nv1a,nv1f/disp: fix memory clock rate retrieval

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
drm-nouveau-nv1a-nv1f-disp-fix-memory-clock-rate-retrieval.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Ilia Mirkin <[email protected]>
Date: Thu, 19 Jan 2017 22:56:30 -0500
Subject: drm/nouveau/nv1a,nv1f/disp: fix memory clock rate retrieval

From: Ilia Mirkin <[email protected]>

commit 24bf7ae359b8cca165bb30742d2b1c03a1eb23af upstream.

Based on the xf86-video-nv code, NFORCE (NV1A) and NFORCE2 (NV1F) have a different way of retrieving clocks. See the nv_hw.c:nForceUpdateArbitrationSettings function in the original code for how these clocks were accessed.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=54587

---
 drivers/gpu/drm/nouveau/dispnv04/hw.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

@@ -222,6 +222,7 @@ nouveau_hw_get_clock(struct drm_device *
 		uint32_t mpllP;
 
 		pci_read_config_dword(pci_get_bus_and_slot(0, 3), 0x6c, &mpllP);
+		mpllP = (mpllP >> 8) & 0xf;
 		if (!mpllP)
 			mpllP = 4;
 

@@ -232,7 +233,7 @@ nouveau_hw_get_clock(struct drm_device *
 		uint32_t clock;
 
 		pci_read_config_dword(pci_get_bus_and_slot(0, 5), 0x4c, &clock);
-		return clock;
+		return clock / 1000;
 	}
 
 	ret = nouveau_hw_get_pllvals(dev, plltype, &pllvals);

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/drm-nouveau-nv1a-nv1f-disp-fix-memory-clock-rate-retrieval.patch queue-4.9/drm-nouveau-disp-gt215-fix-hda-eld-handling-thus-hdmi-audio-on-gt215.patch