From patchwork Fri Nov 6 17:44:47 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bhaumik Bhatt X-Patchwork-Id: 321128 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=-12.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 0304BC5517A for ; Fri, 6 Nov 2020 17:45:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9FA9F22243 for ; Fri, 6 Nov 2020 17:45:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="ddhYFS3y" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727798AbgKFRpB (ORCPT ); Fri, 6 Nov 2020 12:45:01 -0500 Received: from m42-4.mailgun.net ([69.72.42.4]:11065 "EHLO m42-4.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727679AbgKFRpA (ORCPT ); Fri, 6 Nov 2020 12:45:00 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1604684700; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=cmdYTrPHVdknh1uYsFnqObWrTOBRzDB0z34Hl+734WQ=; b=ddhYFS3yxf9xa2Ad+4z0NWH5LjzuMeN6e3a+OUuZzDG7iIhEXp7WVgSW/zWGI2Qhh5fO/4ym lw2kBYeKDIOSpRtqVLvqSuyyTaBD58Ut8yE4vWVh5OWYgTGr0udPaAiF+bGo5768LbK59HVz SRSJTJr2VAsbeXUQwf9/wfvxHIk= X-Mailgun-Sending-Ip: 69.72.42.4 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-n07.prod.us-west-2.postgun.com with SMTP id 5fa58b9b7d4f16f92f4b7d8b (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Fri, 06 Nov 2020 17:44:59 GMT Sender: bbhatt=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 896DFC43382; Fri, 6 Nov 2020 17:44:59 +0000 (UTC) Received: from malabar-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: bbhatt) by smtp.codeaurora.org (Postfix) with ESMTPSA id AAE6FC433C8; Fri, 6 Nov 2020 17:44:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org AAE6FC433C8 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=fail smtp.mailfrom=bbhatt@codeaurora.org From: Bhaumik Bhatt To: manivannan.sadhasivam@linaro.org Cc: linux-arm-msm@vger.kernel.org, hemantk@codeaurora.org, jhugo@codeaurora.org, linux-kernel@vger.kernel.org, Bhaumik Bhatt Subject: [PATCH v2 3/6] bus: mhi: core: Expose mhi_get_exec_env() API for controllers Date: Fri, 6 Nov 2020 09:44:47 -0800 Message-Id: <1604684690-31065-4-git-send-email-bbhatt@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1604684690-31065-1-git-send-email-bbhatt@codeaurora.org> References: <1604684690-31065-1-git-send-email-bbhatt@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The mhi_get_exec_env() APIs can be used by the controller drivers to query the execution environment of the MHI device. Expose it so it can be used in some scenarios to determine behavior of controllers. Signed-off-by: Bhaumik Bhatt Reviewed-by: Manivannan Sadhasivam --- drivers/bus/mhi/core/internal.h | 1 - drivers/bus/mhi/core/main.c | 1 + include/linux/mhi.h | 6 ++++++ 3 files changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/bus/mhi/core/internal.h b/drivers/bus/mhi/core/internal.h index 7989269..124c1b9 100644 --- a/drivers/bus/mhi/core/internal.h +++ b/drivers/bus/mhi/core/internal.h @@ -609,7 +609,6 @@ enum mhi_pm_state __must_check mhi_tryset_pm_state( struct mhi_controller *mhi_cntrl, enum mhi_pm_state state); const char *to_mhi_pm_state_str(enum mhi_pm_state state); -enum mhi_ee_type mhi_get_exec_env(struct mhi_controller *mhi_cntrl); int mhi_queue_state_transition(struct mhi_controller *mhi_cntrl, enum dev_st_transition state); void mhi_pm_st_worker(struct work_struct *work); diff --git a/drivers/bus/mhi/core/main.c b/drivers/bus/mhi/core/main.c index 778897e..7c45657 100644 --- a/drivers/bus/mhi/core/main.c +++ b/drivers/bus/mhi/core/main.c @@ -123,6 +123,7 @@ enum mhi_ee_type mhi_get_exec_env(struct mhi_controller *mhi_cntrl) return (ret) ? MHI_EE_MAX : exec; } +EXPORT_SYMBOL_GPL(mhi_get_exec_env); enum mhi_state mhi_get_mhi_state(struct mhi_controller *mhi_cntrl) { diff --git a/include/linux/mhi.h b/include/linux/mhi.h index d4841e5..9225d55 100644 --- a/include/linux/mhi.h +++ b/include/linux/mhi.h @@ -659,6 +659,12 @@ int mhi_download_rddm_img(struct mhi_controller *mhi_cntrl, bool in_panic); int mhi_force_rddm_mode(struct mhi_controller *mhi_cntrl); /** + * mhi_get_exec_env - Get BHI execution environment of the device + * @mhi_cntrl: MHI controller + */ +enum mhi_ee_type mhi_get_exec_env(struct mhi_controller *mhi_cntrl); + +/** * mhi_get_mhi_state - Get MHI state of the device * @mhi_cntrl: MHI controller */