linux-kernel - [PATCH 00/14] Control Quad SPI pinctrl better on Qualcomm Chromebooks

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Date:   Thu, 23 Mar 2023 10:30:04 -0700
From:   Douglas Anderson <dianders@...omium.org>
To:     Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Mark Brown <broonie@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>
Cc:     Matthias Kaehlcke <mka@...omium.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        linux-gpio@...r.kernel.org, Stephen Boyd <swboyd@...omium.org>,
        devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-spi@...r.kernel.org,
        Douglas Anderson <dianders@...omium.org>,
        Andy Gross <agross@...nel.org>,
        Rajendra Nayak <rnayak@...eaurora.org>,
        Rajesh Patil <rajpat@...eaurora.org>,
        Roja Rani Yarubandi <rojay@...eaurora.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 00/14] Control Quad SPI pinctrl better on Qualcomm Chromebooks

The main goal of this series is to do a better job of controling the
pins related to the "Quad SPI" IP block on Qualcomm Chromebooks. This
is essentially 'v2' of my previous attempt in the patch ("arm64: dts:
qcom: sc7180: Fix trogdor qspi pull direction") [1] but since it's
spiraled out a bit and there are no patches that are exactly the same
I've reset to v1.

The early patches in this series are just no-op cleanup patches that
can be applied. They're not terribly critical but since they are
"Fixes" I've listed them first.

The next patch in the series is a very simple and (hopefully)
non-controversial SPI patch. It can be applied independently if
anything else.

Next, we have a bunch of pinctrl patches (including the device tree
bindings related to them). I dunno what folks are going to think about
these. If everyone hates them, we can drop them and just change the
later patches in the series to use "input-enable" instead of
"output-disable". It feels ugly to me, but it maybe less upheval.

Next I removed the now-deprecated "input-enable" property from all
Chromebooks. None of them were necessary.

Finally, I did what I really wanted to do in the first place: attempt
to cleanup the pinctrl states of the Quad SPI. These patches have a
hard requirement on the pinctrl change.

[1] https://lore.kernel.org/r/20230213165743.1.I6f03f86546e6ce9abb1d24fd9ece663c3a5b950c@changeid

Douglas Anderson (14):
  arm64: dts: sc7180: Rename qspi data12 as data23
  arm64: dts: sc7280: Rename qspi data12 as data23
  arm64: dts: sdm845: Rename qspi data12 as data23
  arm64: dts: qcom: sc7180: Annotate l13a on trogdor to always-on
  spi: spi-qcom-qspi: Support pinctrl sleep states
  dt-bindings: pinctrl: qcom: tlmm should use output-disable, not
    input-enable
  dt-bindings: pinctrl: qcom: Add output-enable
  pinctrl: qcom: Support OUTPUT_ENABLE; deprecate INPUT_ENABLE
  arm64: dts: qcom: sc7180: Remove superfluous "input-enable"s from
    trogdor
  arm64: dts: qcom: sc7280: Remove superfluous "input-enable"s from
    idp-ec-h1
  arm64: dts: qcom: sdm845: Remove superfluous "input-enable"s from
    cheza
  arm64: dts: qcom: sc7180: Fix trogdor qspi pin config
  arm64: dts: qcom: sc7280: Fix qspi pin config
  arm64: dts: qcom: sdm845: Fix cheza qspi pin config

 .../bindings/pinctrl/qcom,tlmm-common.yaml    |  4 +-
 arch/arm64/boot/dts/qcom/sc7180-idp.dts       |  9 ++--
 arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi  | 41 +++++++++++++------
 arch/arm64/boot/dts/qcom/sc7180.dtsi          | 11 +++--
 .../boot/dts/qcom/sc7280-chrome-common.dtsi   | 25 ++++++++++-
 .../arm64/boot/dts/qcom/sc7280-herobrine.dtsi | 14 ++++---
 .../arm64/boot/dts/qcom/sc7280-idp-ec-h1.dtsi |  2 -
 arch/arm64/boot/dts/qcom/sc7280-idp.dtsi      | 13 +++---
 arch/arm64/boot/dts/qcom/sc7280.dtsi          | 11 +++--
 arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi    | 37 ++++++++++++-----
 arch/arm64/boot/dts/qcom/sdm845.dtsi          | 11 +++--
 drivers/pinctrl/qcom/pinctrl-msm.c            | 36 +++++++++++++---
 drivers/spi/spi-qcom-qspi.c                   |  5 +++
 13 files changed, 165 insertions(+), 54 deletions(-)

-- 
2.40.0.348.gf938b09366-goog