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From: Georgi Djakov <georgi.djakov@linaro.org>
To: linux-pm@vger.kernel.org, devicetree@vger.kernel.org
Cc: bjorn.andersson@linaro.org, robh+dt@kernel.org,
	sibis@codeaurora.org, mka@chromium.org, dianders@chromium.org,
	georgi.djakov@linaro.org, linux-kernel@vger.kernel.org
Subject: [PATCH 0/6] interconnect: Introduce xlate_extended()
Date: Thu, 23 Jul 2020 16:09:36 +0300
Message-ID: <20200723130942.28491-1-georgi.djakov@linaro.org> (raw)

Currently the interconnect framework provides the xlate() callback for
mapping the endpoints from phandle arguments in DT. This is implemented
by the provider drivers. But the endpoints (or the path between the
endpoints) might have an additional attributes, which should be parsed
and populated. During previous discussions [1], it was suggested that
adding more and more DT properties will not scale very well. So instead
of adding DT properties, such data should be put into the 'interconnects'
arguments.

This patchset is introducing a new xlate_extended() callback, which
would allow the interconnect provider drivers to parse additional data
(such as path tags) and allow the framework to make use of them.

Thanks to Sibi for the preliminary feedback and testing this patchset
on the sc7180 platform.

The patchset is based on linux-next (next-20200723).

[1]. https://lore.kernel.org/linux-devicetree/20200519185836.GA469006@bogus/

Georgi Djakov (4):
  interconnect: Introduce xlate_extended() callback
  interconnect: qcom: Implement xlate_extended() to parse tags
  interconnect: qcom: sdm845: Replace xlate with xlate_extended
  arm64: dts: qcom: sdm845: Increase the number of interconnect cells

Sibi Sankar (2):
  interconnect: qcom: sc7180: Replace xlate with xlate_extended
  arm64: dts: qcom: sc7180: Increase the number of interconnect cells

 arch/arm64/boot/dts/qcom/sc7180.dtsi  | 216 +++++++++++++-------------
 arch/arm64/boot/dts/qcom/sdm845.dtsi  |  44 +++---
 drivers/interconnect/core.c           |  73 ++++++---
 drivers/interconnect/qcom/icc-rpmh.c  |  27 ++++
 drivers/interconnect/qcom/icc-rpmh.h  |   1 +
 drivers/interconnect/qcom/sc7180.c    |   2 +-
 drivers/interconnect/qcom/sdm845.c    |   2 +-
 include/linux/interconnect-provider.h |  17 +-
 8 files changed, 225 insertions(+), 157 deletions(-)


             reply index

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-23 13:09 Georgi Djakov [this message]
2020-07-23 13:09 ` [PATCH 1/6] interconnect: Introduce xlate_extended() callback Georgi Djakov
2020-07-27 10:51   ` Sibi Sankar
2020-07-27 20:10   ` Matthias Kaehlcke
2020-07-23 13:09 ` [PATCH 2/6] interconnect: qcom: Implement xlate_extended() to parse tags Georgi Djakov
2020-07-27 14:47   ` Sibi Sankar
2020-07-27 20:19   ` Matthias Kaehlcke
2020-07-23 13:09 ` [PATCH 3/6] interconnect: qcom: sdm845: Replace xlate with xlate_extended Georgi Djakov
2020-07-27 10:54   ` Sibi Sankar
2020-07-27 20:51   ` Matthias Kaehlcke
2020-07-23 13:09 ` [PATCH 4/6] arm64: dts: qcom: sdm845: Increase the number of interconnect cells Georgi Djakov
2020-07-27 10:58   ` Sibi Sankar
2020-07-27 20:55     ` Matthias Kaehlcke
2020-07-23 13:09 ` [PATCH 5/6] interconnect: qcom: sc7180: Replace xlate with xlate_extended Georgi Djakov
2020-07-27 20:58   ` Matthias Kaehlcke
2020-07-23 13:09 ` [PATCH 6/6] arm64: dts: qcom: sc7180: Increase the number of interconnect cells Georgi Djakov
2020-07-27 21:06   ` Matthias Kaehlcke

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