From: Sricharan R <sricharan@codeaurora.org>
To: devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org,
agross@codeaurora.org, linux-kernel@vger.kernel.org,
linux-i2c@vger.kernel.org, iivanov@mm-sol.com,
galak@codeaurora.org, dmaengine@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, andy.gross@linaro.org,
ntelkar@codeaurora.org, wsa@the-dreams.de
Cc: srichara@codeaurora.org
Subject: [PATCH V6 0/6] i2c: qup: Add support for v2 tags and bam dma
Date: Tue, 12 Jan 2016 14:13:47 +0530 [thread overview]
Message-ID: <1452588233-1803-1-git-send-email-sricharan@codeaurora.org> (raw)
i2c: qup: Add support for v2 tags and bam dma
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.
Tested this series on apq8074 dragon board eeprom client on i2c bus1
[V6] Added review tags and fixed a checkpatch warning in patch 4/6.
[V5] Addressed few more comments from Ivan T. Ivanov.
Squashed patch 2 and 3 as no point in having only few lines of
common code between v1 and v2 tags for increased complexity.
Couple of non functional review comments fixes in patch 3, 4.
Added a change in patch 4 to have proper transfer completion in
a corner case. patch 5, 6 unchanged.
[V4] Added a patch to factor out some common code.
Removed support for freq > 400KHZ as per comments.
Addressed comments from Ivan T. Ivanov to keep the code for
V2 support in a separate path.
Changed the authorship of V2 tags support patch.
[V3] Added support to coalesce each i2c_msg in i2c_msgs for fifo and
block mode in Patch 2. Also addressed further code comments.
http://comments.gmane.org/gmane.linux.drivers.i2c/22497
[V2] Addressed comments from Ivan T. Ivanov, Andy Gross [v1] Initial Version
Sricharan R (6):
i2c: qup: Change qup_wait_writeready function to use for all timeouts
i2c: qup: Add V2 tags support
i2c: qup: Transfer each i2c_msg in i2c_msgs without a stop bit
i2c: qup: Add bam dma capabilities
dts: msm8974: Add blsp2_bam dma node
dts: msm8974: Add dma channels for blsp2_i2c1 node
arch/arm/boot/dts/qcom-msm8974.dtsi | 14 +-
drivers/i2c/busses/i2c-qup.c | 922 ++++++++++++++++++++++++++++++++++--
2 files changed, 887 insertions(+), 49 deletions(-)
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation
next reply other threads:[~2016-01-12 8:43 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-12 8:43 Sricharan R [this message]
2016-01-12 8:43 ` [PATCH V6 1/6] i2c: qup: Change qup_wait_writeready function to use for all timeouts Sricharan R
2016-01-12 8:43 ` [PATCH V6 2/6] i2c: qup: Add V2 tags support Sricharan R
2016-01-12 8:43 ` [PATCH V6 3/6] i2c: qup: Transfer each i2c_msg in i2c_msgs without a stop bit Sricharan R
2016-01-12 8:43 ` [PATCH V6 4/6] i2c: qup: Add bam dma capabilities Sricharan R
2016-01-12 8:43 ` [PATCH V6 5/6] dts: msm8974: Add blsp2_bam dma node Sricharan R
2016-01-12 8:43 ` [PATCH V6 6/6] dts: msm8974: Add dma channels for blsp2_i2c1 node Sricharan R
2016-01-12 10:19 ` [PATCH V6 0/6] i2c: qup: Add support for v2 tags and bam dma Archit Taneja
2016-01-19 7:48 ` ntelkar
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