[0/7] dmaengine: mmp_tdma: Make the driver actually work

Message ID	20200419164912.670973-1-lkundrak@v3.sk (mailing list archive)
Headers	show Return-Path: <SRS0=Jtx1=6D=vger.kernel.org=dmaengine-owner@kernel.org> From: Lubomir Rintel <lkundrak@v3.sk> To: Vinod Koul <vkoul@kernel.org> Cc: Dan Williams <dan.j.williams@intel.com>, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/7] dmaengine: mmp_tdma: Make the driver actually work Date: Sun, 19 Apr 2020 18:49:05 +0200 Message-Id: <20200419164912.670973-1-lkundrak@v3.sk> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: dmaengine-owner@vger.kernel.org Precedence: bulk
Series	dmaengine: mmp_tdma: Make the driver actually work \| expand [0/7] dmaengine: mmp_tdma: Make the driver actually work [1/7] dmaengine: mmp_tdma: Do not ignore slave config validation errors [2/7] dmaengine: mmp_tdma: Drop "mmp_tdma: from error messages [3/7] dmaengine: mmp_tdma: Validate the transfer direction [4/7] dmaengine: mmp_tdma: Reset channel error on release [5/7] dmaengine: mmp_tdma: Log an error if channel is in wrong state [6/7] dmaengine: mmp_tdma: Fill in slave capabilities [7/7] dmaengine: mmp_tdma: Remove the MMP_SRAM dependency

Message ID

20200419164912.670973-1-lkundrak@v3.sk (mailing list archive)

Headers

From: Lubomir Rintel <lkundrak@v3.sk>
To: Vinod Koul <vkoul@kernel.org>
Cc: Dan Williams <dan.j.williams@intel.com>, dmaengine@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH 0/7] dmaengine: mmp_tdma: Make the driver actually work
Date: Sun, 19 Apr 2020 18:49:05 +0200
Message-Id: <20200419164912.670973-1-lkundrak@v3.sk>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: dmaengine-owner@vger.kernel.org
Precedence: bulk

Series

dmaengine: mmp_tdma: Make the driver actually work | expand

Message

Lubomir Rintel April 19, 2020, 4:49 p.m. UTC

Hi,

chained to this message is a couple of improvements to the MMP Audio DMA
driver (mmp_tdma). Please consider applying them.

Patches 1 to 5 are various improvements robustness and error handling.

The most important patch is [PATCH 6/7], which makes the driver play
along with soc-generic-dmaengine-pcm. This is necessary to play sound on 
devicetree-based MMP2 machines.

The last patch drops MMP_SRAM dependency. This is a safe thing to do,
because nothing currently actually uses this (mmp_tdma) driver. There's a
redundant driver in sound/soc/pxa/mmp-pcm.c, which is also effectively
unused. Sigh.

Tested on an OLPC XO-1.75 laptop (along with changes to the MMP SSPA
driver).

Thank you
Lubo