linux-kernel - [PATCH 121/145] drm/nva3/disp: Fix HDMI audio regression

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Date:	Wed, 17 Jul 2013 15:47:33 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Ilia Mirkin <imirkin@...m.mit.edu>,
	Ben Skeggs <bskeggs@...hat.com>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 121/145] drm/nva3/disp: Fix HDMI audio regression

3.8.13.5 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ilia Mirkin <imirkin@...m.mit.edu>

commit bf03d1b293cc556df53545e318110505014d805e upstream.

This is the nva3 counterpart to commit beba44b17 (drm/nv84/disp: Fix
HDMI audio regression). The regression happened as a result of
refactoring in commit 8e9e3d2de (drm/nv84/disp: move hdmi control into
core).

Reported-and-tested-by: Max Baldwin <archerseven@...il.com>
Signed-off-by: Ilia Mirkin <imirkin@...m.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@...hat.com>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 drivers/gpu/drm/nouveau/core/engine/disp/hdminva3.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/hdminva3.c b/drivers/gpu/drm/nouveau/core/engine/disp/hdminva3.c
index f065fc2..db8c6fd 100644
--- a/drivers/gpu/drm/nouveau/core/engine/disp/hdminva3.c
+++ b/drivers/gpu/drm/nouveau/core/engine/disp/hdminva3.c
@@ -55,6 +55,10 @@ nva3_hdmi_ctrl(struct nv50_disp_priv *priv, int head, int or, u32 data)
 	nv_wr32(priv, 0x61c510 + soff, 0x00000000);
 	nv_mask(priv, 0x61c500 + soff, 0x00000001, 0x00000001);
 
+	nv_mask(priv, 0x61c5d0 + soff, 0x00070001, 0x00010001); /* SPARE, HW_CTS */
+	nv_mask(priv, 0x61c568 + soff, 0x00010101, 0x00000000); /* ACR_CTRL, ?? */
+	nv_mask(priv, 0x61c578 + soff, 0x80000000, 0x80000000); /* ACR_0441_ENABLE */
+
 	/* ??? */
 	nv_mask(priv, 0x61733c, 0x00100000, 0x00100000); /* RESETF */
 	nv_mask(priv, 0x61733c, 0x10000000, 0x10000000); /* LOOKUP_EN */
-- 
1.8.1.2

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