From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754131AbaCMJZ6 (ORCPT ); Thu, 13 Mar 2014 05:25:58 -0400 Received: from devils.ext.ti.com ([198.47.26.153]:32899 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753467AbaCMJTW (ORCPT ); Thu, 13 Mar 2014 05:19:22 -0400 From: Peter Ujfalusi To: , , , , CC: , , Mark Brown , Liam Girdwood , Tony Lindgren , , Jyri Sarha , , , Subject: [PATCH 00/18] edma/ASoC: dmaengine PCM for AM335x and AM447x Date: Thu, 13 Mar 2014 11:18:22 +0200 Message-ID: <1394702320-21743-1-git-send-email-peter.ujfalusi@ti.com> X-Mailer: git-send-email 1.9.0 MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, With this series AM335x and AM447x will use the dmaengine PCM for audio. The daVinci devices will keep using the davinci-pcm for now since I do not have means to test them but the code is written in a way that they can be switched to use the edma-pcm easily (DA850/OMAP-L138 has been tested and audio was working fine). To be able to use the dmaengine PCM I needed to make changes to the edma code in arch/arm/common/ and in drivers/dma/ : Adding support for DMA pause/resume Possibility to select non default event queue/TC for cyclic (audio) dma channels: all devices using the eDMA via dmaengine was assigned to the default EQ/TC (mmc, i2c, spi, etc, and audio). This is not optimal from system performance point of view since sharing the same EQ/TC can cause latency spikes for cyclic channels (long DMA transfers for MMC for example). While debugging the edma to get things sorted out I noticed that the debug was too verbose and the important information was hidden even when the we did not asked for verbose dmaengine debug. I have included some debug cleanups for the edma dmaengine driver also. On the ASoC side: the series has been tested on AM335x and AM447x. I have report that DA850/OMAP-L138 works with this series (which boots w/o DT). Regards, Peter --- Peter Ujfalusi (18): platform_data: edma: Be precise with the paRAM struct dma: edma: Add support for DMA_PAUSE/RESUME operation dma: edma: Set DMA_CYCLIC capability flag arm: common: edma: Select event queue 1 as default when booted with DT arm: common: edma: Save the number of event queues/TCs arm: common: edma: API to request non default queue for a channel DMA: edma: Use different eventq for cyclic channels dma: edma: Implement device_slave_caps callback dma: edma: Simplify direction configuration in edma_config_pset() dma: edma: Reduce debug print verbosity for non verbose debugging dma: edma: Prefix debug prints where the text were identical in prep callbacks dma: edma: Add channel number to debug prints dma: edma: Print the direction value as well when it is not supported ASoC: davinci: Add edma dmaengine platform driver ASoC: davinci-mcasp: Use dmaengine based platform driver for AM335x/447x ASoC: davinci-mcasp: Provide correct filter_data for dmaengine for non-DT boot ASoC: davinci-mcasp: Assign the dma_data earlier in dai_probe callback ASoC: davinci-mcasp: Place constraint on the period size based on FIFO config arch/arm/common/edma.c | 34 ++++++++++++- drivers/dma/edma.c | 92 ++++++++++++++++++++++++++-------- include/linux/platform_data/edma.h | 20 ++++---- sound/soc/davinci/Kconfig | 1 + sound/soc/davinci/Makefile | 2 +- sound/soc/davinci/davinci-mcasp.c | 100 ++++++++++++++++++++++++++++++------- sound/soc/davinci/edma-pcm.c | 77 ++++++++++++++++++++++++++++ sound/soc/davinci/edma-pcm.h | 26 ++++++++++ 8 files changed, 303 insertions(+), 49 deletions(-) create mode 100644 sound/soc/davinci/edma-pcm.c create mode 100644 sound/soc/davinci/edma-pcm.h -- 1.9.0