From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.1 required=3.0 tests=DKIM_SIGNED, FROM_LOCAL_NOVOWEL,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, T_DKIM_INVALID,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EDEB5C67790 for ; Fri, 27 Jul 2018 10:05:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A283820897 for ; Fri, 27 Jul 2018 10:05:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="QRNGi+4g"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="YOaTm4dU" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A283820897 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389311AbeG0L0S (ORCPT ); Fri, 27 Jul 2018 07:26:18 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:45348 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730717AbeG0L0S (ORCPT ); Fri, 27 Jul 2018 07:26:18 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 12C1E60B77; Fri, 27 Jul 2018 10:05:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1532685907; bh=5QeO4p7JnfaRVjRzsqyJ7ke318vLCKCr53a1pr5g8fY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QRNGi+4gSx2PJdpIizbXigsVBq8Xzoj0Gxg9sEZxIiusDGJmoKpyA2N/bcSJsX4FN RPDDI531c3+dRu6+IlnPnnTSLXL1IXavV7wVU3MwBviuK2VgdLl/tr2dgsrrTLEbjs zzzjHX+jIz5ru8kcpSqUYsZNs806GfteQBbpEUVo= Received: from rplsssn-linux.qualcomm.com (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: rplsssn@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 38FE8607B9; Fri, 27 Jul 2018 10:05:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1532685905; bh=5QeO4p7JnfaRVjRzsqyJ7ke318vLCKCr53a1pr5g8fY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YOaTm4dUn0TeoAzWT5sQabIahC+gVxyRCoXz+6BLeSvo3KFTGs8de6zYeFa1BZuuu y29e7Dh86DerUmC9WJXGbTWU+p021lTOIp5axAxsDeLM66srMbePC0Nvv/4l6Ygo3N S99Z/83HHegCRu2OFZEK9ji37QfhWSc0STdYIMog= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 38FE8607B9 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=rplsssn@codeaurora.org From: Raju P L S S S N To: andy.gross@linaro.org, david.brown@linaro.org, linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org Cc: rnayak@codeaurora.org, bjorn.andersson@linaro.org, linux-kernel@vger.kernel.org, sboyd@kernel.org, evgreen@chromium.org, dianders@chromium.org, mka@chromium.org, ilina@codeaurora.org, "Raju P.L.S.S.S.N" Subject: [PATCH v2 2/6] drivers: qcom: rpmh: export controller idle status Date: Fri, 27 Jul 2018 15:34:45 +0530 Message-Id: <1532685889-31345-3-git-send-email-rplsssn@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1532685889-31345-1-git-send-email-rplsssn@codeaurora.org> References: <1532685889-31345-1-git-send-email-rplsssn@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Lina Iyer Allow the controller state be read by platform drivers. This is useful for PM drivers which can choose to disallow idle modes when the controller is busy. Signed-off-by: Lina Iyer Signed-off-by: Raju P.L.S.S.S.N --- drivers/soc/qcom/rpmh.c | 13 +++++++++++++ include/soc/qcom/rpmh.h | 5 +++++ 2 files changed, 18 insertions(+) diff --git a/drivers/soc/qcom/rpmh.c b/drivers/soc/qcom/rpmh.c index c7beb68..2382276 100644 --- a/drivers/soc/qcom/rpmh.c +++ b/drivers/soc/qcom/rpmh.c @@ -511,3 +511,16 @@ int rpmh_invalidate(const struct device *dev) return ret; } EXPORT_SYMBOL(rpmh_invalidate); + +/** + * rpmh_ctrlr_idle: Return the controller idle status + * + * @dev: the device making the request + */ +int rpmh_ctrlr_idle(const struct device *dev) +{ + struct rpmh_ctrlr *ctrlr = get_rpmh_ctrlr(dev); + + return rpmh_rsc_ctrlr_is_idle(ctrlr_to_drv(ctrlr)); +} +EXPORT_SYMBOL(rpmh_ctrlr_idle); diff --git a/include/soc/qcom/rpmh.h b/include/soc/qcom/rpmh.h index 619e07c..d445322 100644 --- a/include/soc/qcom/rpmh.h +++ b/include/soc/qcom/rpmh.h @@ -24,6 +24,8 @@ int rpmh_write_batch(const struct device *dev, enum rpmh_state state, int rpmh_invalidate(const struct device *dev); +int rpmh_ctrlr_idle(const struct device *dev); + #else static inline int rpmh_write(const struct device *dev, enum rpmh_state state, @@ -46,6 +48,9 @@ static inline int rpmh_flush(const struct device *dev) static inline int rpmh_invalidate(const struct device *dev) { return -ENODEV; } +static inline int rpmh_ctrlr_idle(const struct device *dev) +{ return -ENODEV; } + #endif /* CONFIG_QCOM_RPMH */ #endif /* __SOC_QCOM_RPMH_H__ */ -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,\na Linux Foundation Collaborative Project