From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sebastien Bourdeauducq Subject: baytrail-pcm-audio: audio broken on Lenovo Thinkpad Tablet 10 Date: Mon, 16 Feb 2015 23:24:00 -0700 Message-ID: <54E2DE80.1060308@m-labs.hk> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Hi, the Thinkpad Tablet 10 has an impressive amount of problems under Linux, among which the audio is completely broken. The kernel log is: [ 7.532413] rt5640 i2c-10EC5640:00: Device with ID register 6271 is not rt5640/39 [ 7.908208] byt-rt5640 byt-rt5640: ASoC: CPU DAI baytrail-pcm-audio not registered [ 7.908231] platform byt-rt5640: Driver byt-rt5640 requests probe deferral [ 7.931549] baytrail-pcm-audio baytrail-pcm-audio: error: invalid DMA engine 0 [ 7.931557] baytrail-pcm-audio baytrail-pcm-audio: sst_dma_new failed -22 [ 7.967040] baytrail-pcm-audio baytrail-pcm-audio: FW version: 04.05.13.a0 [ 7.967047] baytrail-pcm-audio baytrail-pcm-audio: Build type: a0 [ 7.967051] baytrail-pcm-audio baytrail-pcm-audio: Build date: Apr 2 2014 14:14:39 [ 7.967212] byt-rt5640 byt-rt5640: ASoC: CODEC DAI rt5640-aif1 not registered [ 7.967248] platform byt-rt5640: Driver byt-rt5640 requests probe deferral I'm running kernel 3.19 with the latest firmware from the linux-firmware repository. Sebastien