linux-toradex.git/drivers/slimbus/Kconfig, branch v4.19

slimbus: ngd: Add qcom SLIMBus NGD driver

2018-07-07T15:24:32+00:00

This patch adds suppor to Qualcomm SLIMBus Non-Generic Device (NGD)
controller driver.
This is light-weight SLIMBus controller driver responsible for
communicating with slave HW directly over the bus using messaging
interface, and communicating with master component residing on ADSP
for bandwidth and data-channel management

Based on intial work from
Karthikeyan Ramasubramanian  and
Sagar Dharia 

Signed-off-by: Srinivas Kandagatla 
Tested-by: Craig Tatlor 
Reviewed-by: Vinod Koul 
Signed-off-by: Greg Kroah-Hartman

slimbus: qcom: remove redundant depends in Kconfig

2018-07-07T15:23:12+00:00

QCOM SLIMBus controller is already under a 'if SLIMBUS' in Kconfig,
having depends on SLIMBUS is totally redundant. Just remove it.

Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Greg Kroah-Hartman

slimbus: qcom: add HAS_IOMEM dependency

2018-01-09T16:01:15+00:00

Below build failure was reported on UML,
ERROR: "devm_ioremap_resource" [drivers/slimbus/slim-qcom-ctrl.ko] undefined!
ERROR: "__ioread32_copy" [drivers/slimbus/slim-qcom-ctrl.ko] undefined!
ERROR: "__iowrite32_copy" [drivers/slimbus/slim-qcom-ctrl.ko] undefined!
ERROR: "devm_ioremap" [drivers/slimbus/slim-qcom-ctrl.ko] undefined!

This patch fixes it by making qcom slimbus depend on HAS_IOMEM, as
these are only defined when HAS_IOMEM is selected.

Reported-by: Thomas Meyer 
Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Greg Kroah-Hartman

slimbus: qcom: Add Qualcomm Slimbus controller driver

2017-12-19T10:01:03+00:00

This controller driver programs manager, interface, and framer
devices for Qualcomm's slimbus HW block.
Manager component currently implements logical address setting,
and messaging interface.
Interface device reports bus synchronization information, and framer
device clocks the bus from the time it's woken up, until clock-pause
is executed by the manager device.

Signed-off-by: Sagar Dharia 
Signed-off-by: Srinivas Kandagatla 
Reviwed-by: Mark Brown 
Signed-off-by: Greg Kroah-Hartman

slimbus: Add SLIMbus bus type

2017-12-19T10:01:02+00:00

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.
The framework supports multiple instances of the bus (1 controller per
bus), and multiple slave devices per controller.

This patch adds support to basic silmbus core which includes support to
SLIMbus type, slimbus device registeration and some basic data structures.

Signed-off-by: Sagar Dharia 
Signed-off-by: Srinivas Kandagatla 
Reviwed-by: Mark Brown 
Signed-off-by: Greg Kroah-Hartman