linux-kernel - [PATCH 0/3] Introduce framework for SLIMbus device drivers

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Date:	Sat, 13 Jun 2015 23:49:15 -0600
From:	Sagar Dharia <sdharia@...eaurora.org>
To:	gregkh@...uxfoundation.org, broonie@...nel.org,
	linux-kernel@...r.kernel.org, bp@...e.de, poeschel@...onage.de,
	sdharia@...eaurora.org, santosh.shilimkar@...com,
	treding@...dia.com, gong.chen@...ux.intel.com,
	andreas.noever@...il.com, alan@...ux.intel.com,
	mathieu.poirier@...aro.org, daniel@...ll.ch, oded.gabbay@....com,
	jkosina@...e.cz, sharon.dvir1@...l.huji.ac.il, joe@...ches.com,
	davem@...emloft.net, james.hogan@...tec.com,
	michael.opdenacker@...e-electrons.com, daniel.thompson@...aro.org,
	nkaje@...eaurora.org, mbutler@...ience.com
Cc:	kheitke@...ience.com, mlocke@...eaurora.org, agross@...eaurora.org,
	linux-arm-msm@...r.kernel.org
Subject: [PATCH 0/3] Introduce framework for SLIMbus device drivers

SLIMbus (Serial Low Power Interchip Media Bus) is a specification
developed by MIPI (Mobile Industry Processor Interface) alliance.
SLIMbus is a 2-wire implementation, which is used to communicate with
peripheral components like audio-codec.
SLIMbus uses Time-Division-Multiplexing to accommodate multiple data
channels, and control channel. Control channel has messages to do
device-enumeration, messages to send/receive control-data to/from
slimbus devices, messages for port/channel management, and messages to
do bandwidth allocation.
Framework is introduced to support  multiple instances of the bus
(1 controller per bus), and multiple slave devices per controller.
SPI and I2C frameworks, and comments from last time when I submitted
the patches were referred-to while working on this framework.

These patchsets introduce device-management, OF helpers, and messaging
APIs for SLIMbus. Framework patches to do channel, port and bandwidth
management are work-in-progress and will be sent out soon.

These patchsets were tested on Qualcomm Snapdragon processor board
using a controller driver, and a slimbus-dev module. This driver and
module will be sent out after the framework patches mentioned above.

Sagar Dharia (3):
  SLIMbus: Device management on SLIMbus
  of/slimbus: OF helper for SLIMbus
  slimbus: Add messaging APIs to slimbus framework

 drivers/Kconfig                 |    2 +
 drivers/Makefile                |    1 +
 drivers/slimbus/Kconfig         |    9 +
 drivers/slimbus/Makefile        |    4 +
 drivers/slimbus/slimbus.c       | 1117 +++++++++++++++++++++++++++++++++++++++
 include/linux/mod_devicetable.h |   13 +
 include/linux/slimbus.h         |  536 +++++++++++++++++++
 7 files changed, 1682 insertions(+)
 create mode 100644 drivers/slimbus/Kconfig
 create mode 100644 drivers/slimbus/Makefile
 create mode 100644 drivers/slimbus/slimbus.c
 create mode 100644 include/linux/slimbus.h

-- 
1.8.2.1

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