linux-toradex.git/drivers/interconnect, branch v5.7-rc2

Merge tag 'icc-5.7-rc1' of https://git.linaro.org/people/georgi.djakov/linux into char-misc-next

2020-03-20T12:45:25+00:00

Georgi writes:

interconnect changes for 5.7

Here is a pull request with interconnect changes for the 5.7-rc1 merge
window. It contains just driver updates, and these are:

- Refactoring of the SDM845 driver, which is now improved to better
represent the hardware.
- New driver for SC7180 platforms.
- New driver for OSM L3 interconnect hardware found on SDM845/SC7180
platforms.

Signed-off-by: Georgi Djakov 

* tag 'icc-5.7-rc1' of https://git.linaro.org/people/georgi.djakov/linux:
  interconnect: qcom: Add OSM L3 support on SC7180
  dt-bindings: interconnect: Add OSM L3 DT binding on SC7180
  interconnect: qcom: Add OSM L3 interconnect provider support
  dt-bindings: interconnect: Add OSM L3 DT bindings
  interconnect: qcom: Allow icc node to be used across icc providers
  interconnect: qcom: Add SC7180 interconnect provider driver
  dt-bindings: interconnect: Add Qualcomm SC7180 DT bindings
  interconnect: qcom: sdm845: Split qnodes into their respective NoCs
  interconnect: qcom: Consolidate interconnect RPMh support
  dt-bindings: interconnect: Update Qualcomm SDM845 DT bindings
  dt-bindings: interconnect: Add YAML schemas for QCOM bcm-voter
  dt-bindings: interconnect: Convert qcom,sdm845 to DT schema

interconnect: qcom: Add OSM L3 support on SC7180

2020-03-03T17:02:52+00:00

Add Operating State Manager (OSM) L3 interconnect provider support on
SC7180 SoCs.

Signed-off-by: Sibi Sankar 
Reviewed-by: Evan Green 
Link: https://lore.kernel.org/r/20200227105632.15041-6-sibis@codeaurora.org
Signed-off-by: Georgi Djakov

interconnect: qcom: Add OSM L3 interconnect provider support

2020-03-03T17:02:52+00:00

On some Qualcomm SoCs, Operating State Manager (OSM) controls the
resources of scaling L3 caches. Add a driver to handle bandwidth
requests to OSM L3 from CPU on SDM845 SoCs.

Signed-off-by: Sibi Sankar 
Reviewed-by: Evan Green 
Link: https://lore.kernel.org/r/20200227105632.15041-4-sibis@codeaurora.org
Signed-off-by: Georgi Djakov

interconnect: qcom: Allow icc node to be used across icc providers

2020-03-03T17:02:52+00:00

Move the icc node ids to a common header, this will allow for
referencing/linking of icc nodes to multiple icc providers on
SDM845 SoCs.

Signed-off-by: Sibi Sankar 
Reviewed-by: Evan Green 
Link: https://lore.kernel.org/r/20200227105632.15041-2-sibis@codeaurora.org
Signed-off-by: Georgi Djakov

interconnect: qcom: Add SC7180 interconnect provider driver

2020-03-03T17:02:52+00:00

Add driver for the Qualcomm interconnect buses found in SC7180 based
platforms. The topology consists of several NoCs that are controlled by
a remote processor that collects the aggregated bandwidth for each
master-slave pairs.

Signed-off-by: Odelu Kukatla 
Link: https://lore.kernel.org/r/1583241493-21212-3-git-send-email-okukatla@codeaurora.org
Signed-off-by: Georgi Djakov

interconnect: Handle memory allocation errors

2020-03-03T07:02:57+00:00

When we allocate memory, kasprintf() can fail and we must check its
return value.

Fixes: 05309830e1f8 ("interconnect: Add a name to struct icc_path")
Signed-off-by: Georgi Djakov 
Link: https://lore.kernel.org/r/20200226110420.5357-2-georgi.djakov@linaro.org
Signed-off-by: Greg Kroah-Hartman

interconnect: qcom: sdm845: Split qnodes into their respective NoCs

2020-02-28T10:11:40+00:00

In order to better represent the hardware and its different Network-On-Chip
devices, split the sdm845 provider driver into NoC specific providers.
Remove duplicate functionality already provided by the icc rpmh and
bcm voter drivers to calculate and commit bandwidth requests to hardware.

Signed-off-by: David Dai 
Signed-off-by: Odelu Kukatla 
Signed-off-by: Sibi Sankar 
Reviewed-by: Evan Green 
Link: https://lore.kernel.org/r/20200209183411.17195-6-sibis@codeaurora.org
Signed-off-by: Georgi Djakov

interconnect: qcom: Consolidate interconnect RPMh support

2020-02-28T10:11:40+00:00

Add bcm voter driver and add support for RPMh specific interconnect
providers which implements the set and aggregate functionalities that
translates bandwidth requests into RPMh messages. These modules provide
a common set of functionalities for all Qualcomm RPMh based interconnect
providers and should help reduce code duplication when adding new
providers.

Signed-off-by: David Dai 
Signed-off-by: Odelu Kukatla 
Reviewed-by: Evan Green 
Signed-off-by: Sibi Sankar 
Link: https://lore.kernel.org/r/20200228095951.15457-1-sibis@codeaurora.org
Signed-off-by: Georgi Djakov

interconnect: qcom: Add MSM8916 interconnect provider driver

2020-01-07T07:30:09+00:00

Add driver for the Qualcomm interconnect buses found in MSM8916 based
platforms. The topology consists of three NoCs that are controlled by
a remote processor that collects the aggregated bandwidth for each
master-slave pairs.

Reviewed-by: Evan Green 
Signed-off-by: Georgi Djakov

interconnect: Check for valid path in icc_set_bw()

2020-01-07T07:30:09+00:00

Use IS_ERR() to ensure that the path passed to icc_set_bw() is valid.

Reviewed-by: Evan Green 
Reviewed-by: Bjorn Andersson 
Signed-off-by: Georgi Djakov