linux-kernel - [PATCH v3 0/4] dw_dmac: return actual residue value

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Message-Id: <1359023660-29084-1-git-send-email-andriy.shevchenko@linux.intel.com>
Date:	Thu, 24 Jan 2013 12:34:16 +0200
From:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:	Viresh Kumar <viresh.linux@...il.com>,
	Vinod Koul <vinod.koul@...el.com>,
	linux-kernel@...r.kernel.org, spear-devel <spear-devel@...t.st.com>
Cc:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v3 0/4] dw_dmac: return actual residue value

The patch series is targeted for getting proper residue value.

Since v2:
 - get rid of dwc_update_residue(): for soft LLP mode we assign residue in
   dwc_do_start() and decrease it at each interrupt. In the middle of transfer
   we will return that result substracted by amount of sent bytes
Since v1:
 - everything is rewritten to address Viresh's and Vinod's comments.

*** BLURB HERE ***

Andy Shevchenko (4):
  dw_dmac: remove unnecessary tx_list field in dw_dma_chan
  dw_dmac: introduce total_len field in struct dw_desc
  dw_dmac: fill individual length of descriptor
  dw_dmac: return proper residue value

 drivers/dma/dw_dmac.c      |   79 ++++++++++++++++++++++++++++++++++++--------
 drivers/dma/dw_dmac_regs.h |    3 +-
 2 files changed, 67 insertions(+), 15 deletions(-)

-- 
1.7.10.4

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