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List: linux-audio-dev
Subject: [LAD] =?utf-8?q?Alsa_sound_problem?=
From: 王方宁 <wangfn () hnygtech ! com>
Date: 2018-04-04 9:14:01
Message-ID: 1622973460.141156.1522833241977.JavaMail.javamailuser () localhost
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<style>table.customTableClassName {margin-bottom: 10px;border-collapse: \
collapse;display: table;}.customTableClassName td, .customTableClassName th {border: \
1px solid #ddd;}</style><div id="write-custom-write" tabindex="0" style="font-size: \
14px; font-family: 宋体; outline: none;"><span style="font-family: arial, \
helvetica, sans-serif;">Dear sirs:</span></div><div tabindex="0" style="font-size: \
14px; font-family: 宋体; outline: none;"><p style="margin:0px;"><span \
style="font-family: arial, helvetica, sans-serif; font-size: \
14px;"> <br></span></p><p style="margin:0px;"><span \
style="font-family: arial, helvetica, sans-serif; font-size: \
14px;"> Linux version 4.4.103, alsa version k4.4.103, \
aarch64 chip. Sound card "realtek,rt5640" with "asoc-simple-card" driver, manufactor \
specific I2S driver, and codec driver "rt5640" in rt5640.c.</span></p><p \
style="margin:0px;"><span style="font-family: arial, helvetica, sans-serif; \
font-size: 14px;"><br></span></p><p style="margin:0px;"><span style="font-family: \
arial, helvetica, sans-serif; font-size: \
14px;"> Hardware is ok because sound is working \
with xubuntu system, but is not working with debian system which is our target \
system. <span style="font-family: arial, helvetica, sans-serif; font-size: \
14px;">"</span><span style="font-family: arial, helvetica, sans-serif; font-size: \
14px;">asoc-simple-card</span><span style="font-family: arial, helvetica, sans-serif; \
font-size: 14px;">" driver and I2S driver are the same between these two systems, \
while "aux-det-gpio" is added to debian system with its related function disabled(in \
order to pass compilation. We do not have this gpio in hardware). Rt5640.c is \
different with linux kernel rt5640.c in github but it is truly working in xubuntu \
system.</span></span></p><p style="margin:0px;"><span style="font-family: arial, \
helvetica, sans-serif; font-size: 14px;"><span style="font-family: arial, helvetica, \
sans-serif; font-size: 14px;"> <br></span></span></p><p \
style="margin:0px;"><span style="font-family: arial, helvetica, sans-serif; \
font-size: 14px;"><span style="font-family: arial, helvetica, sans-serif; font-size: \
14px;"> I disabled pulseaudio in debian and used \
"aplay" to test sound. So i do not think it is a problem of \
rootfs.</span></span></p><p style="margin:0px;"><span style="font-family: arial, \
helvetica, sans-serif; font-size: 14px;"><span style="font-family: arial, helvetica, \
sans-serif; font-size: 14px;"> </span></span></p><p \
style="margin:0px;"><span style="font-family: arial, helvetica, sans-serif; \
font-size: 14px;"><span style="font-family: arial, helvetica, sans-serif; font-size: \
14px;"> I checked these drivers and dts file is \
matching them. Sound framework initialization seems to be fine in \
"boot_log" in the attachment.<br></span></span></p><p style="margin:0px;"><span \
style="font-family: arial, helvetica, sans-serif; font-size: 14px;"><span \
style="font-family: arial, helvetica, sans-serif; font-size: \
14px;"> <br></span></span></p><p style="margin:0px;"><span \
style="font-family: arial, helvetica, sans-serif; font-size: 14px;"><span \
style="font-family: arial, helvetica, sans-serif; font-size: \
14px;"> I have searched a lot with google but can not \
find the reason. I suspect it is a problem of ALSA!<br></span></span></p><p \
style="margin:0px;"><span style="font-family: arial, helvetica, sans-serif; \
font-size: 14px;"><span style="font-family: arial, helvetica, sans-serif; font-size: \
14px;"> <br></span></span></p><p style="margin:0px;"><span \
style="font-family: arial, helvetica, sans-serif; font-size: 14px;"><span \
style="font-family: arial, helvetica, sans-serif; font-size: \
14px;"> Thanks for your help. Any solution or \
recommendation to debug the sound problem is highly \
appreciated.<br></span></span></p><p style="margin:0px;"><span style="font-family: \
arial, helvetica, sans-serif; font-size: 14px;"><span style="font-family: arial, \
helvetica, sans-serif; font-size: \
14px;"> <br></span></span></p><p style="margin:0px;"><span \
style="font-family: arial, helvetica, sans-serif; font-size: 14px;"><span \
style="font-family: arial, helvetica, sans-serif; font-size: \
14px;"> Best \
regard!<br></span></span></p><br><br></div><div><div style="color: rgb(51, 51, 51); \
font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);"><div \
class="contextDiv" id="context0"><div class="contextDiv" id="context0"><p \
style="margin-top: 5px; margin-bottom: 5px; text-indent: 27px;"><strong><span \
style="font-size: 13px; font-family: 微软雅黑, sans-serif;">王方宁（Fangning \
Wang） 嵌入式软件工程师</span></strong></p><p style="margin-top: 5px; \
margin-bottom: 5px; text-indent: 27px;"><strong><span style="font-size: 13px; \
font-family: 微软雅黑, sans-serif;"></span></strong><span style="font-size: 13px; \
font-family: 微软雅黑, sans-serif;"><span style="color: rgb(51, 51, 51); \
font-family: 微软雅黑, sans-serif; font-size: 13px; text-indent: 27px; \
background-color: rgb(255, 255, \
255);">云谷（固安）科技有限公司北京分公司</span> 未来显示 \
究院 前瞻策略部<br></span></p><p style="margin-top: 5px; margin-bottom: 5px; \
margin-left: 28px;"><span style="font-size: 13px; font-family: Arial, \
sans-serif;">Tel: (+86-10)5885-1122</span></p><p style="margin-top: 5px; \
margin-bottom: 5px; margin-left: 28px;"><span style="font-size: 13px; font-family: \
Arial, sans-serif;">Fax: (+86-10)5885-6622</span></p><p style="margin-top: 5px; \
margin-bottom: 5px; margin-left: 28px;"><span style="font-size: 13px; font-family: \
Arial, sans-serif;">E-mail:<a class="mailToLink" \
target="_blank">wangfn@hnygtech.com</a></span></p><p style="margin-top: 5px; \
margin-bottom: 5px; margin-left: 28px;"><span style="font-size: 13px; font-family: \
Arial, sans-serif;">Web Site: </span><span style="font-size: 16px; font-family: \
宋体;"><a href="http://www.visionox.com/" target="_blank"><span style="font-family: \
Calibri, sans-serif;">http://www.visionox.com</span></a></span></p><p \
style="margin-top: 5px; margin-bottom: 5px; margin-left: 28px;"><span \
style="font-size: 13px; font-family: 微软雅黑, \
sans-serif;">地址:北京市海淀区上地东路1号院7号楼环洋大厦一层</span></p><p \
style="margin-top: 5px; margin-bottom: 5px; margin-left: 28px;"><span \
style="font-size: 13px; font-family: Arial, \
sans-serif;">Add:1<sup>st</sup> Floor,Huanyang Plaza, \
7<sup>Th</sup> Building,1<sup>st</sup> East \
Road,Shangdi,Beijing</span></p><p style="margin-top: 5px; margin-bottom: 5px; \
text-indent: 175px;"><span style="font-family: \
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