Commit graph

7 commits

Author SHA1 Message Date
Georgi Djakov ad3703ac24 interconnect: qcom: Use the new common helper for node removal
There is a new helper function for removing all nodes. Let's use it instead
of duplicating the code.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2019-12-16 09:25:23 +02:00
Georgi Djakov b29b8113bb interconnect: qcom: sdm845: Walk the list safely on node removal
As we will remove items off the list using list_del(), we need to use the
safe version of list_for_each_entry().

Fixes: b5d2f74107 ("interconnect: qcom: Add sdm845 interconnect provider driver")
Reported-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Cc: <stable@vger.kernel.org> # v5.3+
Link: https://lore.kernel.org/r/20191212075332.16202-3-georgi.djakov@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-12-12 10:28:53 +01:00
Leonard Crestez 83c774f0c6 interconnect: qcom: Fix icc_onecell_data allocation
This is a struct with a trailing zero-length array of icc_node pointers
but it's allocated as if it were a single array of icc_nodes instead.

This allocates too much memory at probe time but shouldn't have any
noticeable effect. Both sdm845 and qcs404 are affected.

Fix by replacing kcalloc with kzalloc and using the "struct_size" macro.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Fixes: 5e4e6c4d3a ("interconnect: qcom: Add QCS404 interconnect provider driver")
Link: https://lore.kernel.org/linux-pm/a7360abb6561917e30bbfaa6084578449152bf1d.1569348056.git.leonard.crestez@nxp.com/
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2019-10-20 12:09:31 +03:00
Jordan Crouse 6311b6521b drivers: qcom: Add BCM vote macro to header
The macro to generate a Bus Controller Manager (BCM) TCS command is used
by the interconnect driver but might also be interesting to other
drivers that need to construct TCS commands for sub processors so move
it out of the sdm845 specific file and into the header.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2019-08-20 10:09:56 +03:00
David Dai 9e3ce77c11 interconnect: qcom: Add tagging and wake/sleep support for sdm845
Add support for wake and sleep commands by using a tag to indicate
whether or not the aggregate and set requests fall into execution
state specific bucket.

Signed-off-by: David Dai <daidavid1@codeaurora.org>
Reviewed-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2019-08-13 23:02:57 +03:00
Georgi Djakov 127ab2cc5f interconnect: Add support for path tags
Consumers may have use cases with different bandwidth requirements based
on the system or driver state. The consumer driver can append a specific
tag to the path and pass this information to the interconnect platform
driver to do the aggregation based on this state.

Introduce icc_set_tag() function that will allow the consumers to append
an optional tag to each path. The aggregation of these tagged paths is
platform specific.

Reviewed-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2019-08-13 23:02:44 +03:00
David Dai b5d2f74107 interconnect: qcom: Add sdm845 interconnect provider driver
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>
2019-01-22 13:37:25 +01:00