linux-kernel - [PATCH 4.4 03/29] drm/nouveau/disp/gt215: Fix HDA ELD handling (thus, HDMI audio) on gt215

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Message-Id: <20170207124458.832547422@linuxfoundation.org>
Date:   Tue,  7 Feb 2017 13:45:32 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Alastair Bridgewater <alastair.bridgewater@...il.com>,
        Ilia Mirkin <imirkin@...m.mit.edu>,
        Ben Skeggs <bskeggs@...hat.com>
Subject: [PATCH 4.4 03/29] drm/nouveau/disp/gt215: Fix HDA ELD handling (thus, HDMI audio) on gt215

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

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

From: Alastair Bridgewater <alastair.bridgewater@...il.com>

commit d347583a39e2df609a9e40c835f72d3614665b53 upstream.

Store the ELD correctly, not just enough copies of the first byte
to pad out the given ELD size.

Signed-off-by: Alastair Bridgewater <alastair.bridgewater@...il.com>
Fixes: 120b0c39c756 ("drm/nv50-/disp: audit and version SOR_HDA_ELD method")
Reviewed-by: Ilia Mirkin <imirkin@...m.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpu/drm/nouveau/nvkm/engine/disp/hdagt215.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdagt215.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdagt215.c
@@ -59,7 +59,7 @@ gt215_hda_eld(NV50_DISP_MTHD_V1)
 			);
 		}
 		for (i = 0; i < size; i++)
-			nvkm_wr32(device, 0x61c440 + soff, (i << 8) | args->v0.data[0]);
+			nvkm_wr32(device, 0x61c440 + soff, (i << 8) | args->v0.data[i]);
 		for (; i < 0x60; i++)
 			nvkm_wr32(device, 0x61c440 + soff, (i << 8));
 		nvkm_mask(device, 0x61c448 + soff, 0x80000003, 0x80000003);