linux/drivers/interconnect/qcom, branch v6.0

Merge branch 'icc-rpm' into icc-next

2022-07-15T14:56:31Z

This patch set is to support bucket in icc-rpm driver, so it implements the similar mechanism in the icc-rpmh driver. It uses interconnect path tag to indicate the bandwidth voting is for which buckets, and there have three kinds of buckets: AWC, WAKE and SLEEP, finally the wake and sleep bucket values are used to set the corresponding clock (active and sleep clocks). So far, we keep the AWC bucket but doesn't really use it. Link: https://lore.kernel.org/r/20220712015929.2789881-1-leo.yan@linaro.org Signed-off-by: Georgi Djakov

interconnect: qcom: icc-rpm: Set bandwidth and clock for bucket values

2022-07-12T07:04:01Z

This commit uses buckets for support bandwidth and clock rates. It introduces a new function qcom_icc_bus_aggregate() to calculate the aggregate average and peak bandwidths for every bucket, and also it calculates the maximum value of aggregated average bandwidth across all buckets. The maximum aggregated average is used to calculate the final bandwidth requests. And we can set the clock rate per bucket, we use SLEEP bucket as default bucket if a platform doesn't enable the interconnect path tags in DT binding; otherwise, we use WAKE bucket to set active clock and use SLEEP bucket for other clocks. So far we don't use AMC bucket. Signed-off-by: Leo Yan Link: https://lore.kernel.org/r/20220712015929.2789881-6-leo.yan@linaro.org Signed-off-by: Georgi Djakov

interconnect: qcom: icc-rpm: Support multiple buckets

2022-07-12T07:03:09Z

The current interconnect rpm driver uses a single aggregate bandwidth to calculate the clock rates for both active and sleep clocks; therefore, it has no chance to separate bandwidth requests for these two kinds of clocks. This patch studies the implementation from interconnect rpmh driver to support multiple buckets. The rpmh driver provides three buckets for AMC, WAKE, and SLEEP; this driver only needs to use WAKE and SLEEP buckets, but we keep the same way with rpmh driver, this can allow us to reuse the DT binding and avoid to define duplicated data structures. This patch introduces two callbacks: qcom_icc_pre_bw_aggregate() is used to clean up bucket values before aggregate bandwidth requests, and qcom_icc_bw_aggregate() is to aggregate bandwidth for buckets. Signed-off-by: Leo Yan Link: https://lore.kernel.org/r/20220712015929.2789881-5-leo.yan@linaro.org Signed-off-by: Georgi Djakov

interconnect: qcom: icc-rpm: Change to use qcom_icc_xlate_extended()

2022-07-12T07:03:01Z

This commit changes to use callback qcom_icc_xlate_extended(). This is a preparation for population path tags from the interconnect DT binding, it doesn't introduce functionality change for the existed DT binding without path tags. Signed-off-by: Leo Yan Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20220712015929.2789881-4-leo.yan@linaro.org Signed-off-by: Georgi Djakov

interconnect: qcom: Move qcom_icc_xlate_extended() to a common file

2022-07-12T07:01:30Z

since there have conflict between two headers icc-rpmh.h and icc-rpm.h, the function qcom_icc_xlate_extended() is declared in icc-rpmh.h thus it cannot be used by icc-rpm driver. Move the function to a new common file icc-common.c so that allow it to be called by multiple drivers. Signed-off-by: Leo Yan Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20220712015929.2789881-3-leo.yan@linaro.org Signed-off-by: Georgi Djakov

interconnect: icc-rpm: Set destination bandwidth as well as source bandwidth

2022-07-07T13:42:36Z

Make it possible to set destination as well as source bandwidth. If the *dst pointer is non-NULL. Right now it appears that we never make the destination bw allocation call, which is inconsistent with the downstream way of doing this. Signed-off-by: Bryan O'Donoghue Link: https://lore.kernel.org/r/20220707093823.1691870-1-bryan.odonoghue@linaro.org Signed-off-by: Georgi Djakov

Merge branch 'icc-sm6350' into icc-next

2022-07-05T13:41:00Z

This series adds interconnect support for the various NoCs found on sm6350. A more special modification is allowing child NoC devices, like done for rpm-based qcm2290 which was already merged, but now for rpmh-based interconnect. See also downstream dts: https://android.googlesource.com/kernel/msm-extra/devicetree/+/refs/tags/android-11.0.0_r0.81/qcom/lagoon-bus.dtsi Link: https://lore.kernel.org/r/20220525144404.200390-1-luca.weiss@fairphone.com Signed-off-by: Georgi Djakov

interconnect: qcom: msm8939: Use icc_sync_state

2022-07-05T13:39:48Z

It's fashion to use the icc_sync_state callback to notify the framework when all consumers are probed, so that the bandwidth request doesn't need to stay on maximum value. Do the same thing for msm8939 driver. Signed-off-by: Leo Yan Link: https://lore.kernel.org/r/20220416012634.479617-1-leo.yan@linaro.org Signed-off-by: Georgi Djakov

interconnect: qcom: Add SM6350 driver support

2022-06-20T11:27:07Z

Add a driver that handles the different NoCs found on SM6350, generated from the downstream dtb. We're exluding ALC, IP0 and all _display nodes. ALC will not be voted from the kernel[1] and IP0 is handled by the clk-rpmh driver[2]. [1] https://lore.kernel.org/linux-arm-msm/1e79c73f22c8891dc9f868babd940fca@codeaurora.org/ [2] https://lore.kernel.org/linux-arm-msm/20220412220033.1273607-1-swboyd@chromium.org/ Signed-off-by: Luca Weiss Link: https://lore.kernel.org/r/20220525144404.200390-5-luca.weiss@fairphone.com Signed-off-by: Georgi Djakov

interconnect: qcom: icc-rpmh: Support child NoC device probe

2022-06-20T11:21:15Z

As per e39bf2972c6e ("interconnect: icc-rpm: Support child NoC device probe") also update the rpmh interconnect driver to support probing NoCs that are modelled as child devices of a different NoC. As the driver doesn't yet use the 'reg' property, no change is done for that. Downstream DT reference: https://android.googlesource.com/kernel/msm-extra/devicetree/+/refs/tags/android-11.0.0_r0.56/qcom/lagoon-bus.dtsi Signed-off-by: Luca Weiss Link: https://lore.kernel.org/r/20220525144404.200390-2-luca.weiss@fairphone.com Signed-off-by: Georgi Djakov