[alsa-devel] [PATCH v2] ALSA: hda - not choose assigned converters for unused pins of Valleyview
Lin, Mengdong
mengdong.lin at intel.com
Fri Nov 1 11:25:29 CET 2013
Hi Takashi,
The function name should be "not_share_assigned_cvt".
The original function name "not_share_unassigned_cvt" gives the opposite meaning.
Would you please revert v1 patch?
I'm sorry to cause the unnecessary work.
Regards
Mengdong
> -----Original Message-----
> From: Lin, Mengdong
> Sent: Friday, November 01, 2013 11:23 AM
> To: alsa-devel at alsa-project.org; tiwai at suse.de
> Cc: Lin, Mengdong
> Subject: [PATCH v2] ALSA: hda - not choose assigned converters for unused pins
> of Valleyview
>
> From: Mengdong Lin <mengdong.lin at intel.com>
>
> For Valleyview display codec, if an unused pin chooses an assgined converter
> selected by a used pin, playback on the unused pin can also give sound to the
> output device of the used pin. It's because data flows from the same convertor
> to the display port of the used pin. This issue is same as Haswell.
>
> So this patch avoids using assinged convertors for unused pins.
> The related function haswell_config_cvts() is renamed for code reuse.
>
> Signed-off-by: Mengdong Lin <mengdong.lin at intel.com>
>
> diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index
> e332db8..5487a56 100644
> --- a/sound/pci/hda/patch_hdmi.c
> +++ b/sound/pci/hda/patch_hdmi.c
> @@ -45,6 +45,7 @@ module_param(static_hdmi_pcm, bool, 0644);
> MODULE_PARM_DESC(static_hdmi_pcm, "Don't restrict PCM parameters per
> ELD info");
>
> #define is_haswell(codec) ((codec)->vendor_id == 0x80862807)
> +#define is_valleyview(codec) ((codec)->vendor_id == 0x80862882)
>
> struct hdmi_spec_per_cvt {
> hda_nid_t cvt_nid;
> @@ -1148,7 +1149,7 @@ static int hdmi_choose_cvt(struct hda_codec *codec,
> return 0;
> }
>
> -static void haswell_config_cvts(struct hda_codec *codec,
> +static void not_share_assigned_cvt(struct hda_codec *codec,
> hda_nid_t pin_nid, int mux_idx)
> {
> struct hdmi_spec *spec = codec->spec;
> @@ -1226,8 +1227,8 @@ static int hdmi_pcm_open(struct hda_pcm_stream
> *hinfo,
> mux_idx);
>
> /* configure unused pins to choose other converters */
> - if (is_haswell(codec))
> - haswell_config_cvts(codec, per_pin->pin_nid, mux_idx);
> + if (is_haswell(codec) || is_valleyview(codec))
> + not_share_assigned_cvt(codec, per_pin->pin_nid, mux_idx);
>
> snd_hda_spdif_ctls_assign(codec, pin_idx, per_cvt->cvt_nid);
>
> --
> 1.8.1.2
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