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This is an immutable branch shared with the OPP tree. It contains also
the patches to convert the interconnect framework from tristate to bool
after Greg agreed with that. This will make the integration between
the OPP layer and interconnect much easier.
* icc-get-by-index:
interconnect: Add of_icc_get_by_index() helper function
interconnect: Disallow interconnect core to be built as a module
interconnect: Remove unused module exit code from core
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Building individual drivers as modules is fine but allowing a core
framework to be built as a module makes it really complex and should be
avoided.
Whatever uses the interconnect core APIs must also be built as a module
if interconnect core is built as module, else we will see compilation
failures.
If another core framework (like cpufreq, clk, etc), that can't be built
as module, needs to use interconnect APIs then we will start seeing
compilation failures with allmodconfig configurations as the symbols
(like of_icc_get()) used in other frameworks will not be available in
the built-in image.
Disallow the interconnect core to be built as a module to avoid all
these issues.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/b789cce388dd1f2906492f307dea6780c398bc6a.1567065991.git.viresh.kumar@linaro.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
This adds support for i.MX SoC family to interconnect framework.
Platform drivers can describe the interconnect graph and several
adjustment knobs where icc node bandwidth is converted to a
DEV_PM_QOS_MIN_FREQUENCY request.
The interconnect provider is probed through the main NOC device and
other adjustable nodes on the same graph are found from a
fsl,scalable-nodes phandle array property.
Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Link: https://lore.kernel.org/r/35920e673df6c04cbbb7d877a7d4ba25fd91a784.1586174566.git.leonard.crestez@nxp.com
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Introduce Qualcomm SDM845 specific provider driver using the
interconnect framework.
Signed-off-by: David Dai <daidavid1@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch introduces a new API to get requirements and configure the
interconnect buses across the entire chipset to fit with the current
demand.
The API is using a consumer/provider-based model, where the providers are
the interconnect buses and the consumers could be various drivers.
The consumers request interconnect resources (path) between endpoints and
set the desired constraints on this data flow path. The providers receive
requests from consumers and aggregate these requests for all master-slave
pairs on that path. Then the providers configure each node along the path
to support a bandwidth that satisfies all bandwidth requests that cross
through that node. The topology could be complicated and multi-tiered and
is SoC specific.
Reviewed-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
