linux-kernel - [PATCH V4 0/7] i2c: qup: Add support for v2 tags and bam dma

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1436412350-19519-1-git-send-email-sricharan@codeaurora.org>
Date:	Thu,  9 Jul 2015 08:55:43 +0530
From:	Sricharan R <sricharan@...eaurora.org>
To:	iivanov@...sol.com, devicetree@...r.kernel.org,
	linux-arm-msm@...r.kernel.org, galak@...eaurora.org,
	linux-kernel@...r.kernel.org, linux-i2c@...r.kernel.org,
	agross@...eaurora.org, dmaengine@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Cc:	sricharan@...eaurora.org
Subject: [PATCH V4 0/7]  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

[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 (7):
  i2c: qup: Change qup_wait_writeready function to use for all timeouts
  qup: i2c: factor out common code for reuse
  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        | 943 +++++++++++++++++++++++++++++++++---
 2 files changed, 880 insertions(+), 77 deletions(-)

-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/