linux/drivers/interconnect
Konrad Dybcio 11f63efe58 interconnect: qcom: icc-rpm: Control bus rpmcc from icc
The sole purpose of bus clocks that were previously registered with
rpmcc was to convey the aggregated bandwidth to RPM. There's no good
reason to keep them outside the interconnect framework, as it only
adds to the plentiful complexity.

Add the required code to handle these clocks from within SMD RPM ICC.

RPM-owned bus clocks are no longer considered a thing, but sadly we
have to allow for the existence of HLOS-owned bus clocks, as some
(mostly older) SoCs (ab)use these for bus scaling (e.g. MSM8998 and
&mmcc AHB_CLK_SRC).

This in turn is trivially solved with a single *clk, which is filled
and used iff qp.bus_clk_desc is absent and we have a "bus" clock-names
entry in the DT node.

This change should(tm) be fully compatible with all sorts of old
Device Trees as far as the interconnect functionality goes (modulo
abusing bus clock handles or wrongly using the qcom,icc.h binding,
but that's a mistake in and of itself).

Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Acked-by: Georgi Djakov <djakov@kernel.org>
Link: https://lore.kernel.org/r/20230526-topic-smd_icc-v7-17-09c78c175546@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2023-07-15 09:54:45 -07:00
..
imx interconnect: imx: fix registration race 2023-03-07 22:19:05 +02:00
qcom interconnect: qcom: icc-rpm: Control bus rpmcc from icc 2023-07-15 09:54:45 -07:00
samsung interconnect: exynos: drop redundant link destroy 2023-03-13 21:13:48 +02:00
bulk.c interconnect: add device managed bulk API 2022-07-04 16:14:29 +03:00
core.c interconnect: drop unused icc_get() interface 2023-05-30 22:04:46 +03:00
icc-clk.c interconnect: icc-clk: fix modular build 2023-06-10 10:30:38 +03:00
internal.h interconnect: Add helpers for enabling/disabling a path 2020-05-10 18:30:37 +03:00
Kconfig interconnect: add clk-based icc provider support 2023-05-18 19:02:23 +03:00
Makefile interconnect: add clk-based icc provider support 2023-05-18 19:02:23 +03:00
trace.h interconnect: Add basic tracepoints 2019-12-16 09:25:23 +02:00