linux-toradex.git/drivers/soc/qcom/smd.c, branch v4.9-rc3

soc: qcom: smd: Reset rx tail rather than tx

2016-09-01T19:19:50+00:00

The local end of each SMD channel is responsible for updating the tx
head and the rx tail, as such we should not touch the tx tail during a
reset.

Reported-by: Jeremy McNicoll 
Signed-off-by: Bjorn Andersson 
Signed-off-by: Andy Gross

soc: qcom: smd: Represent smd edges as devices

2016-08-23T20:46:33+00:00

By representing each edge as its own device the channels are no longer
tied to being parented by the same smd device and as such an edge can
live as children of e.g. remoteproc instances.

Signed-off-by: Bjorn Andersson 
Signed-off-by: Andy Gross

soc: qcom: smd: Request irqs after parsing properties

2016-08-23T20:46:33+00:00

The code exectued by the interrupt handler depends on the values parsed
after requesting the irq, just to be save we should therefor move the
request_irq() call to be done after parsing the properties.

Signed-off-by: Bjorn Andersson 
Signed-off-by: Andy Gross

soc: qcom: smd: Simplify multi channel handling

2016-08-23T20:46:32+00:00

Multi-channel clients split between several drivers need a way to close
individual channels, as these drivers might be removed individually.
With this in place the responsibility of closing additionally opened
channels to the client as well only concerning smd about the primary
channel.

With this approach we will only trigger removal of SMD devices based on
the state of the primary channel, however we get in sync with how rpmsg
works.

Signed-off-by: Bjorn Andersson 
Signed-off-by: Andy Gross

soc: qcom: smd: Make callback pass channel reference

2016-04-20T02:55:12+00:00

By passing the smd channel reference to the callback, rather than the
smd device, we can open additional smd channels from sub-devices of smd
devices.

Also updates the two smd clients today found in mainline.

Signed-off-by: Bjorn Andersson 
Signed-off-by: Andy Gross

soc: qcom: smd: Support opening additional channels

2016-03-30T22:21:12+00:00

With the qcom_smd_open_channel() API we allow SMD devices to open
additional SMD channels, to allow implementation of multi-channel SMD
devices - like Bluetooth.

Channels are opened from the same edge as the calling SMD device is tied
to.

Signed-off-by: Bjorn Andersson 
Signed-off-by: Bjorn Andersson 
Signed-off-by: Andy Gross

soc: qcom: smd: Support multiple channels per sdev

2016-03-30T22:21:03+00:00

This patch allows chaining additional channels to a SMD device, enabling
implementation of multi-channel SMD devies - like Bluetooth.

Signed-off-by: Bjorn Andersson 
Signed-off-by: Bjorn Andersson 
Signed-off-by: Andy Gross

soc: qcom: smd: Refactor channel open and close handling

2016-03-30T22:20:57+00:00

Refactor opening and closing of channels into two separate functions
instead of open coding this in the various places.

Signed-off-by: Bjorn Andersson 
Signed-off-by: Bjorn Andersson 
Signed-off-by: Andy Gross

soc: qcom: smd: Split discovery and state change work

2016-03-30T22:20:51+00:00

Split the two steps of channel discovery and state change handling into
two different workers. This allows for new channels to be found while
we're are probing, which is required as we introduce multi-channel
support.

Signed-off-by: Bjorn Andersson 
Signed-off-by: Bjorn Andersson 
Signed-off-by: Andy Gross

soc: qcom: smd: Introduce callback setter

2016-03-30T22:20:43+00:00

Introduce a setter for the callback function pointer to clarify the
locking around the operation and to reduce some duplication.

Signed-off-by: Bjorn Andersson 
Signed-off-by: Bjorn Andersson 
Signed-off-by: Andy Gross