From patchwork Tue May 12 02:33:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bhaumik Bhatt X-Patchwork-Id: 189198 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=-9.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, 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 2B52AC54E8D for ; Tue, 12 May 2020 02:33:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0A92F2053B for ; Tue, 12 May 2020 02:33:33 +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="p+AO0Yp6" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728559AbgELCdc (ORCPT ); Mon, 11 May 2020 22:33:32 -0400 Received: from mail27.static.mailgun.info ([104.130.122.27]:55116 "EHLO mail27.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727942AbgELCd1 (ORCPT ); Mon, 11 May 2020 22:33:27 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1589250806; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=pBuTcqNKTPCo/Jfx1CZ1DBivyl6rTguL5IkTaBeu1U8=; b=p+AO0Yp6P4R7eOJDvF+pwVT7Wvm2KpAsB3Dvw1b7/OMXx2APWkpAhTmjk8QQE2G8+yYlPHo9 dj6FP0hByHt7Sn6LlvlRRdLxqfUypRJYwST9cNMyd2rp7m7HO+9mcuB6STX49CBpUi17ZAFQ CARhjZttY/vnZowh9CR/zTtGAfI= X-Mailgun-Sending-Ip: 104.130.122.27 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 mxa.mailgun.org with ESMTP id 5eba0af6.7f63efe75110-smtp-out-n03; Tue, 12 May 2020 02:33:26 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 44C31C432C2; Tue, 12 May 2020 02:33:25 +0000 (UTC) Received: from bbhatt-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 9C287C43636; Tue, 12 May 2020 02:33:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 9C287C43636 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=bbhatt@codeaurora.org From: Bhaumik Bhatt To: manivannan.sadhasivam@linaro.org Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, hemantk@codeaurora.org, jhugo@codeaurora.org, Bhaumik Bhatt Subject: [PATCH v1 3/6] bus: mhi: core: Introduce helper function to check device state Date: Mon, 11 May 2020 19:33:13 -0700 Message-Id: <1589250796-32020-4-git-send-email-bbhatt@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1589250796-32020-1-git-send-email-bbhatt@codeaurora.org> References: <1589250796-32020-1-git-send-email-bbhatt@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Introduce a helper function to determine whether the device is in a powered ON state and resides in one of the active MHI states. This will allow for some use cases in reading debugfs entries. Signed-off-by: Bhaumik Bhatt Reviewed-by: Jeffrey Hugo --- drivers/bus/mhi/core/internal.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/bus/mhi/core/internal.h b/drivers/bus/mhi/core/internal.h index b1f640b..2f18be7 100644 --- a/drivers/bus/mhi/core/internal.h +++ b/drivers/bus/mhi/core/internal.h @@ -599,6 +599,11 @@ int mhi_queue_state_transition(struct mhi_controller *mhi_cntrl, int __mhi_device_get_sync(struct mhi_controller *mhi_cntrl); int mhi_send_cmd(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan, enum mhi_cmd_type cmd); +static inline bool mhi_is_active(struct mhi_controller *mhi_cntrl) +{ + return (mhi_cntrl->dev_state >= MHI_STATE_M0 && + mhi_cntrl->dev_state <= MHI_STATE_M3_FAST); +} /* Register access methods */ void mhi_db_brstmode(struct mhi_controller *mhi_cntrl, struct db_cfg *db_cfg,