linux-kernel - [V6 0/2] arm64: dts: qcom: Configure CTS pin to bias-bus-hold for bluetooth

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Message-Id: <1650556567-4995-1-git-send-email-quic_vnivarth@quicinc.com>
Date:   Thu, 21 Apr 2022 21:26:05 +0530
From:   Vijaya Krishna Nivarthi <quic_vnivarth@...cinc.com>
To:     agross@...nel.org, bjorn.andersson@...aro.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     quic_msavaliy@...cinc.com, dianders@...omium.org,
        Vijaya Krishna Nivarthi <quic_vnivarth@...cinc.com>
Subject: [V6 0/2] arm64: dts: qcom: Configure CTS pin to bias-bus-hold for bluetooth

WLAN rail was leaking power during RBSC/sleep even after turning BT off.
Change pinctrl configuration to handle same.

Signed-off-by: Vijaya Krishna Nivarthi <quic_vnivarth@...cinc.com>
---
v6: add code comments about how bias-bus-hold could save power
v5: modify subject to include bluetooth
v4: modify subject of each patch to indicate what it is applying to
v3: apply same change to active state and other sc7280*.dts* as well
v2: used bias-bus-hold as per review comments
v1: intial patch used bias-disable for sleep pinctrl in sc7280-idp only
---

Vijaya Krishna Nivarthi (2):
  arm64: dts: qcom: sc7280-idp: Configure CTS pin to bias-bus-hold for
    bluetooth
  arm64: dts: qcom: sc7280-qcard: Configure CTS pin to bias-bus-hold for
    bluetooth

 arch/arm64/boot/dts/qcom/sc7280-idp.dtsi   | 18 ++++++++++++------
 arch/arm64/boot/dts/qcom/sc7280-qcard.dtsi | 19 ++++++++++++++-----
 2 files changed, 26 insertions(+), 11 deletions(-)

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