[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
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
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