linux-kernel - [PATCH 0/7 v3] K3DMA fixes for HiKey HDMI audio

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Message-Id: <1469073189-9167-1-git-send-email-john.stultz@linaro.org>
Date:	Wed, 20 Jul 2016 20:53:02 -0700
From:	John Stultz <john.stultz@...aro.org>
To:	lkml <linux-kernel@...r.kernel.org>
Cc:	John Stultz <john.stultz@...aro.org>,
	Zhangfei Gao <zhangfei.gao@...aro.org>,
	Jingoo Han <jg1.han@...sung.com>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Vinod Koul <vinod.koul@...el.com>,
	Dan Williams <dan.j.williams@...el.com>,
	Mark Brown <broonie@...nel.org>, Andy Green <andy@...mcat.com>
Subject: [PATCH 0/7 v3] K3DMA fixes for HiKey HDMI audio

Per Mark's suggestion, I've split out the k3dma changes
on their own as they are mostly fixes and the addition
of cyclic mode.

New in v3:
* With inspiration from YongQin Liu, I figured out the reason we
were seeing occasional DMA ERR issues: The desc structures were
being allocated with kzalloc and so changes weren't necessarily
being flushed to memory before the transfers started. I fixed
this, but also uncoverd a memory leak that was happening in
cyclic mode, so I fixed that as well.

Thoughts and comments would be appreciated!

thanks
-john

Cc: Zhangfei Gao <zhangfei.gao@...aro.org>
Cc: Jingoo Han <jg1.han@...sung.com>
Cc: Krzysztof Kozlowski <k.kozlowski@...sung.com>
Cc: Maxime Ripard <maxime.ripard@...e-electrons.com>
Cc: Vinod Koul <vinod.koul@...el.com>
Cc: Dan Williams <dan.j.williams@...el.com>
Cc: Mark Brown <broonie@...nel.org>
Cc: Andy Green <andy@...mcat.com>

Andy Green (4):
  k3dma: Fix hisi burst clipping
  k3dma: Fix dma err offsets
  k3dma: Fix "nobody cared" message seen on any error
  k3dma: Add cyclic mode for audio

John Stultz (3):
  k3dma: Fix memory handling with cyclic mode
  k3dma: Fix occasional DMA ERR issue by using proper dma api
  Kconfig: Allow k3dma driver to be selected for more then HISI3xx
    platforms

 drivers/dma/Kconfig |   2 +-
 drivers/dma/k3dma.c | 219 ++++++++++++++++++++++++++++++++++++++++++----------
 2 files changed, 181 insertions(+), 40 deletions(-)

-- 
1.9.1