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From: <chihhao.chen@mediatek.com>
To: <geraldogabriel@gmail.com>
Cc: <alsa-devel@alsa-project.org>, <chihhao.chen@mediatek.com>,
	<damien@zamaudio.com>, <linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	<linux-mediatek@lists.infradead.org>, <matthias.bgg@gmail.com>,
	<tiwai@suse.com>, <tiwai@suse.de>, <wsd_upstream@mediatek.com>
Subject: Re: [PATCH] ALSA: usb-audio: fix incorrect clock source setting
Date: Thu, 5 Aug 2021 15:54:01 +0800	[thread overview]
Message-ID: <20210805075401.21170-1-chihhao.chen@mediatek.com> (raw)
In-Reply-To: <CAEsQvctJDnsaRTXAGAJ6==juKazoo2=AJrWabLzqE=jCfg5EEA@mail.gmail.com>

From: chihhao chen <chihhao.chen@mediatek.com>

Hi Geraldo Nascimento,

For echo test, it means we use this earphone to receive and play sounds at the same time.
We found in this case serious noise problem happens.

Log as follows with your patch
<6>[  175.960387][T401365] __uac_clock_find_source: Clock Selector 0xc has pin 2 selected
<6>[  175.966980][T401365] __uac_clock_find_source: Clock Selector 0xb has pin 2 selected
<6>[  176.026251][T400354] __uac_clock_find_source: Clock Selector 0xc has pin 1 selected
<6>[  176.032406][T400354] __uac_clock_find_source: Clock Selector 0xb has pin 1 selected

There is no noise and I think this should be a firmware bug.

Thanks
Chihhao


WARNING: multiple messages have this Message-ID (diff)
From: <chihhao.chen@mediatek.com>
To: <geraldogabriel@gmail.com>
Cc: alsa-devel@alsa-project.org, wsd_upstream@mediatek.com,
	tiwai@suse.de, damien@zamaudio.com, linux-kernel@vger.kernel.org,
	tiwai@suse.com, chihhao.chen@mediatek.com,
	linux-mediatek@lists.infradead.org, matthias.bgg@gmail.com,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] ALSA: usb-audio: fix incorrect clock source setting
Date: Thu, 5 Aug 2021 15:54:01 +0800	[thread overview]
Message-ID: <20210805075401.21170-1-chihhao.chen@mediatek.com> (raw)
In-Reply-To: <CAEsQvctJDnsaRTXAGAJ6==juKazoo2=AJrWabLzqE=jCfg5EEA@mail.gmail.com>

From: chihhao chen <chihhao.chen@mediatek.com>

Hi Geraldo Nascimento,

For echo test, it means we use this earphone to receive and play sounds at the same time.
We found in this case serious noise problem happens.

Log as follows with your patch
<6>[  175.960387][T401365] __uac_clock_find_source: Clock Selector 0xc has pin 2 selected
<6>[  175.966980][T401365] __uac_clock_find_source: Clock Selector 0xb has pin 2 selected
<6>[  176.026251][T400354] __uac_clock_find_source: Clock Selector 0xc has pin 1 selected
<6>[  176.032406][T400354] __uac_clock_find_source: Clock Selector 0xb has pin 1 selected

There is no noise and I think this should be a firmware bug.

Thanks
Chihhao


WARNING: multiple messages have this Message-ID (diff)
From: <chihhao.chen@mediatek.com>
To: <geraldogabriel@gmail.com>
Cc: <alsa-devel@alsa-project.org>, <chihhao.chen@mediatek.com>,
	<damien@zamaudio.com>, <linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	<linux-mediatek@lists.infradead.org>, <matthias.bgg@gmail.com>,
	<tiwai@suse.com>, <tiwai@suse.de>, <wsd_upstream@mediatek.com>
Subject: Re: [PATCH] ALSA: usb-audio: fix incorrect clock source setting
Date: Thu, 5 Aug 2021 15:54:01 +0800	[thread overview]
Message-ID: <20210805075401.21170-1-chihhao.chen@mediatek.com> (raw)
In-Reply-To: <CAEsQvctJDnsaRTXAGAJ6==juKazoo2=AJrWabLzqE=jCfg5EEA@mail.gmail.com>

From: chihhao chen <chihhao.chen@mediatek.com>

Hi Geraldo Nascimento,

For echo test, it means we use this earphone to receive and play sounds at the same time.
We found in this case serious noise problem happens.

Log as follows with your patch
<6>[  175.960387][T401365] __uac_clock_find_source: Clock Selector 0xc has pin 2 selected
<6>[  175.966980][T401365] __uac_clock_find_source: Clock Selector 0xb has pin 2 selected
<6>[  176.026251][T400354] __uac_clock_find_source: Clock Selector 0xc has pin 1 selected
<6>[  176.032406][T400354] __uac_clock_find_source: Clock Selector 0xb has pin 1 selected

There is no noise and I think this should be a firmware bug.

Thanks
Chihhao
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek

WARNING: multiple messages have this Message-ID (diff)
From: <chihhao.chen@mediatek.com>
To: <geraldogabriel@gmail.com>
Cc: <alsa-devel@alsa-project.org>, <chihhao.chen@mediatek.com>,
	<damien@zamaudio.com>, <linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	<linux-mediatek@lists.infradead.org>, <matthias.bgg@gmail.com>,
	<tiwai@suse.com>, <tiwai@suse.de>, <wsd_upstream@mediatek.com>
Subject: Re: [PATCH] ALSA: usb-audio: fix incorrect clock source setting
Date: Thu, 5 Aug 2021 15:54:01 +0800	[thread overview]
Message-ID: <20210805075401.21170-1-chihhao.chen@mediatek.com> (raw)
In-Reply-To: <CAEsQvctJDnsaRTXAGAJ6==juKazoo2=AJrWabLzqE=jCfg5EEA@mail.gmail.com>

From: chihhao chen <chihhao.chen@mediatek.com>

Hi Geraldo Nascimento,

For echo test, it means we use this earphone to receive and play sounds at the same time.
We found in this case serious noise problem happens.

Log as follows with your patch
<6>[  175.960387][T401365] __uac_clock_find_source: Clock Selector 0xc has pin 2 selected
<6>[  175.966980][T401365] __uac_clock_find_source: Clock Selector 0xb has pin 2 selected
<6>[  176.026251][T400354] __uac_clock_find_source: Clock Selector 0xc has pin 1 selected
<6>[  176.032406][T400354] __uac_clock_find_source: Clock Selector 0xb has pin 1 selected

There is no noise and I think this should be a firmware bug.

Thanks
Chihhao
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2021-08-05  7:54 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-24  4:23 [PATCH] ALSA: usb-audio: fix incorrect clock source setting chihhao.chen
2021-07-24  4:23 ` chihhao.chen
2021-07-24  4:23 ` chihhao.chen
2021-07-24  4:23 ` chihhao.chen
2021-07-24  8:04 ` Takashi Iwai
2021-07-24  8:04   ` Takashi Iwai
2021-07-24  8:04   ` Takashi Iwai
2021-07-24  8:04   ` Takashi Iwai
2021-07-24 15:04   ` Geraldo Nascimento
2021-07-24 15:04     ` Geraldo Nascimento
2021-07-24 15:04     ` Geraldo Nascimento
2021-07-24 15:04     ` Geraldo Nascimento
2021-07-24 15:20     ` Geraldo Nascimento
2021-07-24 15:20       ` Geraldo Nascimento
2021-07-24 15:20       ` Geraldo Nascimento
2021-07-24 15:20       ` Geraldo Nascimento
2021-07-24 18:42       ` Geraldo Nascimento
2021-07-24 18:42         ` Geraldo Nascimento
2021-07-24 18:42         ` Geraldo Nascimento
2021-07-24 18:42         ` Geraldo Nascimento
2021-07-25  7:44     ` Takashi Iwai
2021-07-25  7:44       ` Takashi Iwai
2021-07-25  7:44       ` Takashi Iwai
2021-07-25  7:44       ` Takashi Iwai
2021-07-26  2:16       ` Geraldo Nascimento
2021-07-26  2:16         ` Geraldo Nascimento
2021-07-26  2:16         ` Geraldo Nascimento
2021-07-26  2:16         ` Geraldo Nascimento
2021-07-26  8:42         ` chihhao chen
2021-07-26  8:42           ` chihhao chen
2021-07-26  8:42           ` chihhao chen
2021-07-26  8:42           ` chihhao chen
2021-07-26 20:57           ` Geraldo Nascimento
2021-07-26 20:57             ` Geraldo Nascimento
2021-07-26 20:57             ` Geraldo Nascimento
2021-07-26 20:57             ` Geraldo Nascimento
2021-07-27 10:27             ` chihhao.chen
2021-07-27 10:27               ` chihhao.chen
2021-07-27 10:27               ` chihhao.chen
2021-07-27 10:27               ` chihhao.chen
2021-07-27 17:56               ` Geraldo Nascimento
2021-07-27 17:56                 ` Geraldo Nascimento
2021-07-27 17:56                 ` Geraldo Nascimento
2021-07-27 17:56                 ` Geraldo Nascimento
2021-07-28  1:19                 ` Geraldo Nascimento
2021-07-28  1:19                   ` Geraldo Nascimento
2021-07-28  1:19                   ` Geraldo Nascimento
2021-07-28  1:19                   ` Geraldo Nascimento
2021-08-05  7:54             ` chihhao.chen [this message]
2021-08-05  7:54               ` chihhao.chen
2021-08-05  7:54               ` chihhao.chen
2021-08-05  7:54               ` chihhao.chen
2021-08-05 15:50               ` Geraldo Nascimento
2021-08-05 15:50                 ` Geraldo Nascimento
2021-08-05 15:50                 ` Geraldo Nascimento
2021-08-05 15:50                 ` Geraldo Nascimento
2021-08-05 23:31                 ` Geraldo Nascimento
2021-08-05 22:03                   ` Geraldo Nascimento
2021-08-05 22:03                     ` Geraldo Nascimento
2021-08-05 22:03                     ` Geraldo Nascimento
2021-08-05 22:03                     ` Geraldo Nascimento

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