[PATCH 0/6] i2c: qup: Add support for v2 tags and bam dma

Sricharan R sricharan at codeaurora.org
Fri Mar 13 10:49:46 PDT 2015

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

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(-)


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