From patchwork Wed Apr 20 07:27:18 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vijaya Krishna Nivarthi X-Patchwork-Id: 12819855 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id ED39EC433F5 for ; Wed, 20 Apr 2022 07:27:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1359745AbiDTHaZ (ORCPT ); Wed, 20 Apr 2022 03:30:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48196 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1359742AbiDTHaZ (ORCPT ); Wed, 20 Apr 2022 03:30:25 -0400 Received: from alexa-out.qualcomm.com (alexa-out.qualcomm.com [129.46.98.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 240973B29E; Wed, 20 Apr 2022 00:27:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1650439660; x=1681975660; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=50ysCfUvwo92n/nfs2+3kT0JB7/rwha2wuFClB3lQWQ=; b=beWK+aPybyfRS+zKPwjVW2pZAUzd7URWnBor65wv3wrKnKZuAoFghE2R nfkFnrCeENYMwrq5LwUhFlsKl2OdCXYEWYpWB7g/+MAywqlO/B0tF5WvO duoNxdxbk5XaOOopjG5M/nPvhB+eexdj6pPZCaLarPken6WfqhIgFxZG0 Q=; Received: from ironmsg09-lv.qualcomm.com ([10.47.202.153]) by alexa-out.qualcomm.com with ESMTP; 20 Apr 2022 00:27:40 -0700 X-QCInternal: smtphost Received: from ironmsg01-blr.qualcomm.com ([10.86.208.130]) by ironmsg09-lv.qualcomm.com with ESMTP/TLS/AES256-SHA; 20 Apr 2022 00:27:38 -0700 X-QCInternal: smtphost Received: from hu-vnivarth-hyd.qualcomm.com (HELO hu-sgudaval-hyd.qualcomm.com) ([10.213.111.166]) by ironmsg01-blr.qualcomm.com with ESMTP; 20 Apr 2022 12:57:25 +0530 Received: by hu-sgudaval-hyd.qualcomm.com (Postfix, from userid 3994820) id A61C93C2C; Wed, 20 Apr 2022 12:57:23 +0530 (+0530) From: Vijaya Krishna Nivarthi To: agross@kernel.org, bjorn.andersson@linaro.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: quic_msavaliy@quicinc.com, dianders@chromium.org, Vijaya Krishna Nivarthi Subject: [V5 1/2] arm64: dts: qcom: sc7280-idp: Configure CTS pin to bias-bus-hold for bluetooth Date: Wed, 20 Apr 2022 12:57:18 +0530 Message-Id: <1650439639-28428-2-git-send-email-quic_vnivarth@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1650439639-28428-1-git-send-email-quic_vnivarth@quicinc.com> References: <1650439639-28428-1-git-send-email-quic_vnivarth@quicinc.com> Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org WLAN rail was leaking power during RBSC/sleep even after turning BT off. Change active and sleep pinctrl configurations to handle same. Signed-off-by: Vijaya Krishna Nivarthi Reviewed-by: Douglas Anderson --- v5: modify subject to include bluetooth v4: modify subject of patch to indicate file 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 --- arch/arm64/boot/dts/qcom/sc7280-idp.dtsi | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi index 015a347..85e7467 100644 --- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi @@ -400,10 +400,10 @@ &qup_uart7_cts { /* - * Configure a pull-down on CTS to match the pull of - * the Bluetooth module. + * Configure a bias-bus-hold on CTS to lower power usage + * when BT is turned off. */ - bias-pull-down; + bias-bus-hold; }; &qup_uart7_rts { @@ -495,10 +495,10 @@ pins = "gpio28"; function = "gpio"; /* - * Configure a pull-down on CTS to match the pull of - * the Bluetooth module. + * Configure a bias-bus-hold on CTS to lower power usage + * when BT is turned off. */ - bias-pull-down; + bias-bus-hold; }; qup_uart7_sleep_rts: qup-uart7-sleep-rts {