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From: Sricharan R <sricharan@codeaurora.org>
To: devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, dmaengine@vger.kernel.org,
	galak@codeaurora.org, linux-i2c@vger.kernel.org,
	linux-kernel@vger.kernel.org
Cc: sricharan@codeaurora.org, agross@codeaurora.org
Subject: [PATCH 0/6] i2c: qup: Add support for v2 tags and bam dma
Date: Fri, 13 Mar 2015 23:19:46 +0530	[thread overview]
Message-ID: <1426268992-19298-1-git-send-email-sricharan@codeaurora.org> (raw)

QUP from version 2.1.1 onwards, supports a new format of
i2c command tags. Tag codes instructs the controller to
perform a operation like read/write. This new tagging version
supports and is required for adding bam dma capabilities.
v2 tags supports transfer of more than 256 bytes in a single
i2c transaction. Also adding bam dma support facilitates
transferring each i2c_msg in i2c_msgs without a 'stop' bit
in between which is required for some of the clients.

This series depends on the below bam dma bug fix
 https://lkml.org/lkml/2015/2/20/47

Tested this series on apq8074 dragon board eeprom client
on i2c bus1

Andy Gross (1):
  i2c: qup: Add V2 tags support

Sricharan R (5):
  i2c: qup: Change qup_wait_writeready function to use for all timeouts
  i2c: qup: Add bam dma capabilities
  i2c: qup: Transfer every i2c_msg in i2c_msgs without stop
  dts: msm8974: Add blsp2_bam dma node
  dts: msm8974: Add dma channels for blsp2_i2c1 node

 arch/arm/boot/dts/qcom-msm8974.dtsi |  12 +
 drivers/i2c/busses/i2c-qup.c        | 783 +++++++++++++++++++++++++++++++++---
 2 files changed, 741 insertions(+), 54 deletions(-)

-- 
1.8.2.1


             reply	other threads:[~2015-03-13 17:50 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-13 17:49 Sricharan R [this message]
2015-03-13 17:49 ` [PATCH 1/6] i2c: qup: Change qup_wait_writeready function to use for all timeouts Sricharan R
2015-03-13 17:49 ` [PATCH 2/6] i2c: qup: Add V2 tags support Sricharan R
2015-03-25 12:24   ` Ivan T. Ivanov
2015-03-26  5:44     ` Sricharan R
2015-03-26  7:31       ` Ivan T. Ivanov
2015-03-26  8:36         ` Sricharan R
2015-03-13 17:49 ` [PATCH 3/6] i2c: qup: Add bam dma capabilities Sricharan R
2015-03-25 13:10   ` Ivan T. Ivanov
2015-03-26  6:08     ` Sricharan R
2015-03-13 17:49 ` [PATCH 4/6] i2c: qup: Transfer every i2c_msg in i2c_msgs without stop Sricharan R
2015-03-13 17:49 ` [PATCH 5/6] dts: msm8974: Add blsp2_bam dma node Sricharan R
2015-03-17 12:48   ` Stanimir Varbanov
2015-03-17 13:10     ` sricharan
2015-03-13 17:49 ` [PATCH 6/6] dts: msm8974: Add dma channels for blsp2_i2c1 node Sricharan R
2015-03-13 19:54   ` Andy Gross
2015-03-16  9:55     ` sricharan

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