[PATCH 3.17 111/319] drm/gt214-/kms: fix hda eld regression

From: Greg Kroah-Hartman
Date: Tue Nov 11 2014 - 20:27:08 EST


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

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

From: Ben Skeggs <bskeggs@xxxxxxxxxx>

commit d889c52427d48c05f163f2f39b2cfc12e17e5266 upstream.

Signed-off-by: Ben Skeggs <bskeggs@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/gpu/drm/nouveau/nv50_display.c | 18 ++++++++++--------
1 file changed, 10 insertions(+), 8 deletions(-)

--- a/drivers/gpu/drm/nouveau/nv50_display.c
+++ b/drivers/gpu/drm/nouveau/nv50_display.c
@@ -1653,15 +1653,17 @@ nv50_audio_mode_set(struct drm_encoder *
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
struct nouveau_connector *nv_connector;
struct nv50_disp *disp = nv50_disp(encoder->dev);
- struct {
- struct nv50_disp_mthd_v1 base;
- struct nv50_disp_sor_hda_eld_v0 eld;
+ struct __packed {
+ struct {
+ struct nv50_disp_mthd_v1 mthd;
+ struct nv50_disp_sor_hda_eld_v0 eld;
+ } base;
u8 data[sizeof(nv_connector->base.eld)];
} args = {
- .base.version = 1,
- .base.method = NV50_DISP_MTHD_V1_SOR_HDA_ELD,
- .base.hasht = nv_encoder->dcb->hasht,
- .base.hashm = nv_encoder->dcb->hashm,
+ .base.mthd.version = 1,
+ .base.mthd.method = NV50_DISP_MTHD_V1_SOR_HDA_ELD,
+ .base.mthd.hasht = nv_encoder->dcb->hasht,
+ .base.mthd.hashm = nv_encoder->dcb->hashm,
};

nv_connector = nouveau_encoder_connector_get(nv_encoder);
@@ -1671,7 +1673,7 @@ nv50_audio_mode_set(struct drm_encoder *
drm_edid_to_eld(&nv_connector->base, nv_connector->edid);
memcpy(args.data, nv_connector->base.eld, sizeof(args.data));

- nvif_mthd(disp->disp, 0, &args, sizeof(args));
+ nvif_mthd(disp->disp, 0, &args, sizeof(args.base) + args.data[2] * 4);
}

static void


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