From patchwork Thu Sep 3 19:21:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Tipton X-Patchwork-Id: 11754607 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2A17B109A for ; Thu, 3 Sep 2020 19:22:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1194A208CA for ; Thu, 3 Sep 2020 19:22:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="ZqV168JG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729311AbgICTWj (ORCPT ); Thu, 3 Sep 2020 15:22:39 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:62996 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729184AbgICTWO (ORCPT ); Thu, 3 Sep 2020 15:22:14 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1599160934; h=Content-Transfer-Encoding: MIME-Version: References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=qLLtxNHJYrYCngVI61j10KgSkzJBI9yW9H6Se+IKbwg=; b=ZqV168JGS2Jt7Ru+1+4KgZg2ipSpUXLfh2WfDZVx0O7dkvJACR3GjsCufQkKMdKSZNskvadQ LiO+/D8o4+eiMxV3A/Yxhvsy9C2w0XSI/rwpIbgH7Z22GdaTIRKzHgV0z3WO1fx9lOyz7C0N 0jM5YBhxwphYQARPWutZvHt7bTk= X-Mailgun-Sending-Ip: 69.72.43.7 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n01.prod.us-east-1.postgun.com with SMTP id 5f51426532925f96e1dc8bd0 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Thu, 03 Sep 2020 19:22:13 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 2407AC4339C; Thu, 3 Sep 2020 19:22:13 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mdtipton-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: mdtipton) by smtp.codeaurora.org (Postfix) with ESMTPSA id 48570C433C8; Thu, 3 Sep 2020 19:22:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 48570C433C8 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=mdtipton@codeaurora.org From: Mike Tipton To: georgi.djakov@linaro.org Cc: bjorn.andersson@linaro.org, agross@kernel.org, linux-pm@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Mike Tipton , Rob Herring Subject: [PATCH v4 3/6] dt-bindings: interconnect: Add property to set BCM TCS wait behavior Date: Thu, 3 Sep 2020 12:21:46 -0700 Message-Id: <20200903192149.30385-4-mdtipton@codeaurora.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20200903192149.30385-1-mdtipton@codeaurora.org> References: <20200903192149.30385-1-mdtipton@codeaurora.org> MIME-Version: 1.0 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add "qcom,tcs-wait" property to set which TCS should wait for completion when triggering. Signed-off-by: Mike Tipton Reviewed-by: Rob Herring --- .../bindings/interconnect/qcom,bcm-voter.yaml | 20 +++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/Documentation/devicetree/bindings/interconnect/qcom,bcm-voter.yaml b/Documentation/devicetree/bindings/interconnect/qcom,bcm-voter.yaml index 5971fc1df08d..e23df4836c6f 100644 --- a/Documentation/devicetree/bindings/interconnect/qcom,bcm-voter.yaml +++ b/Documentation/devicetree/bindings/interconnect/qcom,bcm-voter.yaml @@ -21,6 +21,23 @@ properties: enum: - qcom,bcm-voter + qcom,tcs-wait: + description: | + Optional mask of which TCSs (Triggered Command Sets) wait for completion + upon triggering. If not specified, then the AMC and WAKE sets wait for + completion. The mask bits are available in the QCOM_ICC_TAG_* defines. + + The AMC TCS is triggered immediately when icc_set_bw() is called. The + WAKE/SLEEP TCSs are triggered when the RSC transitions between active and + sleep modes. + + In most cases, it's necessary to wait in both the AMC and WAKE sets to + ensure resources are available before use. If a specific RSC and its use + cases can ensure sufficient delay by other means, then this can be + overridden to reduce latencies. + + $ref: /schemas/types.yaml#/definitions/uint32 + required: - compatible @@ -39,7 +56,10 @@ examples: # as defined in Documentation/devicetree/bindings/soc/qcom/rpmh-rsc.txt - | + #include + disp_bcm_voter: bcm_voter { compatible = "qcom,bcm-voter"; + qcom,tcs-wait = ; }; ...