Add Epoch Subsystem (EPSS) L3 provider support on SA8775P SoCs.

Current interconnect framework is based on static IDs for creating node
and registering with framework. This becomes a limitation for topologies
where there are multiple instances of same interconnect provider.
Modified interconnect framework APIs to create and link icc node with
dynamic IDs, this will help to overcome the dependency on static IDs.

* icc-sa8775p
  dt-bindings: interconnect: Add EPSS L3 compatible for SA8775P
  interconnect: core: Add dynamic id allocation support
  interconnect: qcom: Add multidev EPSS L3 support
  interconnect: qcom: icc-rpmh: Add dynamic icc node id support
  interconnect: qcom: sa8775p: Add dynamic icc node id support

Link: https://lore.kernel.org/r/20250415095343.32125-1-quic_rlaggysh@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>

The mc_virt & clk_virt nodes are virtual and doesn't have associated registers,
thus the regmap config will fail with:
qnoc-sm8650 interconnect-0: error -EINVAL: invalid resource (null)

Remove the regmap config since QoS will never be applied to those virtual
nodes.

Reported-by: Pengyu Luo <mitltlatltl@gmail.com>
Fixes: 40ef9b6b778f ("interconnect: qcom: sm8650: enable QoS configuration")
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250519-topic-sm8650-upstream-icc-qos-fix-v1-1-6ace779250aa@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>

Add the MASTER_APSS_NOC interconnect node of the system NoC
and the associated QoS configuration.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250415-topic-sm8650-upstream-icc-apss-noc-v1-2-9e6bea3943d8@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>

Enable QoS configuration for master ports with predefined values
for priority and urgency forwarding.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250407-topic-sm8650-upstream-icc-qos-v1-1-93b33f99a455@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>

To facilitate dynamic id allocation, discard the static IDs
from node data and set alloc_dyn_id in descriptor structure
to indicate dynamic ID allocation. Update the topology to use
node pointers for links instead of static IDs and forward declare
the node pointer to avoid undefined references.

Signed-off-by: Raviteja Laggyshetty <quic_rlaggysh@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250415095343.32125-6-quic_rlaggysh@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>

Interconnect framework relies on static IDs for creating,
linking and maintaning the topology. This dependency on static
IDs prevents creating two instances of same provider. To overcome
the dependency on static IDs, dynamic ID support is being added.
To facilitate dynamic node ID support, the driver now uses
node pointers for links instead of static node IDs and icc_node
pointer is added as member in qcom_icc_node structure to track
the node creation.

Signed-off-by: Raviteja Laggyshetty <quic_rlaggysh@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250415095343.32125-5-quic_rlaggysh@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>

EPSS on SA8775P has two instances, necessitating the creation of two
device nodes with different compatibles due to the unique ICC node ID
and name limitations in the interconnect framework. Add multidevice
support for the OSM-L3 provider to dynamically obtain unique node IDs
and register with the framework.
EPSS topology includes a single master-slave pair within the same
provider, the node linking logic is simplified by directly connecting
the master node to the slave node.

Signed-off-by: Raviteja Laggyshetty <quic_rlaggysh@quicinc.com>
Link: https://lore.kernel.org/r/20250415095343.32125-4-quic_rlaggysh@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>

The current interconnect framework relies on static IDs for node
creation and registration, which limits topologies with multiple
instances of the same interconnect provider. To address this,
introduce icc_node_create_dyn() and icc_link_nodes() APIs to
dynamically allocate IDs for interconnect nodes during creation
and link. This change removes the dependency on static IDs,
allowing multiple instances of the same hardware, such as EPSS L3.

Signed-off-by: Raviteja Laggyshetty <quic_rlaggysh@quicinc.com>
Link: https://lore.kernel.org/r/20250415095343.32125-3-quic_rlaggysh@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>

Pull interconnect changes from Georgi:

interconnect changes for 6.14

This pull request contains the interconnect changes for the 6.14-rc1 merge
window. It contains one new driver and DT documentation updates for L3
and bandwidth monitors.

Driver changes:
- New driver for the SM8750 platform
- Add DT compatibles for QCS615 BWMON and SM8650 OSM

Signed-off-by: Georgi Djakov <djakov@kernel.org>

* tag 'icc-6.14-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/djakov/icc:
  dt-bindings: interconnect: qcom,msm8998-bwmon: Add SM8750 CPU BWMONs
  dt-bindings: interconnect: OSM L3: Document sm8650 OSM L3 compatible
  dt-bindings: interconnect: qcom-bwmon: Document QCS615 bwmon compatibles
  interconnect: sm8750: Add missing const to static qcom_icc_desc
  interconnect: qcom: Add interconnect provider driver for SM8750
  dt-bindings: interconnect: add interconnect bindings for SM8750

The statically allocated 'struct qcom_icc_desc' is not modified by the
driver and like all other instances should be const.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250109164630.175093-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>