linux-kernel - [RFC 00/19] Add interconnect and devfreq support for i.MX8MQ

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Date:   Mon, 13 Sep 2021 20:37:55 +0300
From:   Abel Vesa <abel.vesa@....com>
To:     Rob Herring <robh@...nel.org>, Dong Aisheng <aisheng.dong@....com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        "catalin.marinas@....com" <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        MyungJoo Ham <myungjoo.ham@...sung.com>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Georgi Djakov <djakov@...nel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Ahmad Fatoum <a.fatoum@...gutronix.de>
Cc:     Pengutronix Kernel Team <kernel@...gutronix.de>,
        linux-serial@...r.kernel.org, NXP Linux Team <linux-imx@....com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        devicetree@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, Abel Vesa <abel.vesa@....com>
Subject: [RFC 00/19] Add interconnect and devfreq support for i.MX8MQ

In vendor tree there is something called busfreq but it is
non-upstreamable. This approach with interconnect+devfreq gives us the
same functionality by using already upstream and mature subsystems.
This series is more of a proof-of-concept.

Abel Vesa (19):
  dt-bindings: interconnect: imx8mq: Add missing pl301 and SAI ids
  devfreq: imx-bus: Switch governor to powersave
  devfreq: imx-bus: Decouple imx-bus from icc made
  devfreq: imx8m-ddrc: Change governor to powersave
  devfreq: imx8m-ddrc: Use the opps acquired from EL3
  devfreq: imx8m-ddrc: Add late system sleep PM ops
  interconnect: imx: Switch from imx_icc_node_adj_desc to fsl,icc-id
    node assignment
  interconnect: imx8: Remove the imx_icc_node_adj_desc
  interconnect: imx8mq: Add the pl301_per_m and pl301_wakeup nodes and
    subnodes
  interconnect: imx8mq: Add of_match_table
  interconnect: imx: Add imx_icc_get_bw and imx_icc_aggregate functions
  arm64: dts: imx8mq: Add fsl,icc-id property to ddrc node
  arm64: dts: imx8mq: Add fsl,icc-id to noc node
  arm64: dts: imx8mq: Add all pl301 nodes
  arm64: dts: imx8mq: Add the interconnect node
  arm64: dts: imx8mq: Add interconnect properties to icc consumer nodes
  net: ethernet: fec_main: Add interconnect support
  mmc: sdhci-esdhc-imx: Add interconnect support
  arm64: defconfig: Add necessary configs for icc+devfreq on i.MX8MQ

 arch/arm64/boot/dts/freescale/imx8mq.dtsi | 222 +++++++++++++++++++++-
 arch/arm64/configs/defconfig              |   9 +-
 drivers/devfreq/imx-bus.c                 |  42 +---
 drivers/devfreq/imx8m-ddrc.c              |  78 +++-----
 drivers/interconnect/imx/imx.c            |  92 +++++----
 drivers/interconnect/imx/imx.h            |  19 +-
 drivers/interconnect/imx/imx8mm.c         |  32 +---
 drivers/interconnect/imx/imx8mn.c         |  28 +--
 drivers/interconnect/imx/imx8mq.c         |  59 +++---
 drivers/mmc/host/sdhci-esdhc-imx.c        |  27 +++
 drivers/net/ethernet/freescale/fec.h      |   3 +
 drivers/net/ethernet/freescale/fec_main.c |  19 ++
 include/dt-bindings/interconnect/imx8mq.h |   9 +
 13 files changed, 422 insertions(+), 217 deletions(-)

-- 
2.31.1