At Mon, 10 Jan 2011 21:49:31 +0530, Nitin Daga wrote:
Added hardware constraint in patch_hdmi.c to disable channels 4/6 which are not supported by some older NVIDIA GPUs.
Signed-off-by: Nitin Daga ndaga@nvidia.com Acked-By: Stephen Warren swarren@nvidia.com
Applied now. Thanks.
Takashi
pci/hda/patch_hdmi.c | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 42 insertions(+), 0 deletions(-)
diff --git a/pci/hda/patch_hdmi.c b/pci/hda/patch_hdmi.c index d3e49aa..ddde59b 100644 --- a/pci/hda/patch_hdmi.c +++ b/pci/hda/patch_hdmi.c @@ -1166,11 +1166,53 @@ static int nvhdmi_7x_init(struct hda_codec *codec) return 0; }
+static unsigned int channels_2_6_8[] = {
- 2, 6, 8
+};
+static unsigned int channels_2_8[] = {
- 2, 8
+};
+static struct snd_pcm_hw_constraint_list hw_constraints_2_6_8_channels = {
- .count = ARRAY_SIZE(channels_2_6_8),
- .list = channels_2_6_8,
- .mask = 0,
+};
+static struct snd_pcm_hw_constraint_list hw_constraints_2_8_channels = {
- .count = ARRAY_SIZE(channels_2_8),
- .list = channels_2_8,
- .mask = 0,
+};
static int simple_playback_pcm_open(struct hda_pcm_stream *hinfo, struct hda_codec *codec, struct snd_pcm_substream *substream) { struct hdmi_spec *spec = codec->spec;
- struct snd_pcm_hw_constraint_list *hw_constraints_channels = NULL;
- switch (codec->preset->id) {
- case 0x10de0002:
- case 0x10de0003:
- case 0x10de0005:
- case 0x10de0006:
hw_constraints_channels = &hw_constraints_2_8_channels;
break;
- case 0x10de0007:
hw_constraints_channels = &hw_constraints_2_6_8_channels;
break;
- default:
break;
- }
- if (hw_constraints_channels != NULL) {
snd_pcm_hw_constraint_list(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_CHANNELS,
hw_constraints_channels);
- }
- return snd_hda_multi_out_dig_open(codec, &spec->multiout);
}
-- 1.7.0.4
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