On 13/12/17 09:25, Greg Kroah-Hartman wrote:
On Mon, Dec 11, 2017 at 11:42:54PM +0000, srinivas.kandagatla@linaro.org wrote:
From: Srinivas Kandagatla srinivas.kandagatla@linaro.org
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, controller driver for Qualcomm's SLIMbus controller, and clock-pause feature for entering/exiting low-power mode for SLIMbus. Framework patches to do channel, port and bandwidth management are work-in-progress and will be sent out once these initial patches are accepted.
These patchsets were tested on IFC6410 board with Qualcomm APQ8064 processor using the controller driver, and a WCD9310 codec.
v9: https://lkml.org/lkml/2017/12/7/289
Changes from v9 to v10:
- Added kernel-doc reference into slimbus driver api doc suggested by Jonathan Corbet
These all look good to me. I can take this through my tree if I get the ack from Mark for the regmap changes.
Greg, Can you please pick up the series except the regmap patch, Mark said that he will apply it separately.
Thanks srini
thanks,
greg k-h