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=-11.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,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 59E9DC433ED for ; Wed, 31 Mar 2021 18:35:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2018561077 for ; Wed, 31 Mar 2021 18:35:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235049AbhCaSfQ (ORCPT ); Wed, 31 Mar 2021 14:35:16 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:59765 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234954AbhCaSfF (ORCPT ); Wed, 31 Mar 2021 14:35:05 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1617215705; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=NtdQlRtPzwi1TkJW8PSL2jxovct9uThnkcdUwsBF9Lw=; b=DVF3Y07ENGfaTu4BDMWDx2yjKdociu2Mlg/yZMlOk0N819x1mukBDoESeA4DOv8ycon0Qtsc MO3JN+yKjoqBAff1/j5kEkloUT93s4jYrHhTLeGjYDAnFrVYMUSgmeGNRcqgpP7CxP1GtUYf xOsLGhgr4J93tuhyNi3SMmxLgDY= 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-n07.prod.us-east-1.postgun.com with SMTP id 6064c0bc0a4a07ffdacecaa8 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Wed, 31 Mar 2021 18:34:36 GMT Sender: bbhatt=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id EF2C5C43463; Wed, 31 Mar 2021 18:34:35 +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 05AE1C433C6; Wed, 31 Mar 2021 18:34:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 05AE1C433C6 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, carl.yin@quectel.com, naveen.kumar@quectel.com, loic.poulain@linaro.org, Bhaumik Bhatt Subject: [PATCH v6 0/2] Polling for MHI ready Date: Wed, 31 Mar 2021 11:34:23 -0700 Message-Id: <1617215665-19593-1-git-send-email-bbhatt@codeaurora.org> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org v6: -Fix return error code for mhi_poll_reg_field() -Do not recode when returning from mhi_ready_state_transition() if polling fails v5: -Use fsleep in place of udelay or usleep_range to accommodate better delay use -Drop patch for polling during RDDM panic path as new API cannot be used there v4: -Added reviewed-by tag -Return appropriate error code from mhi_poll_reg_field() -Fixed bug where mhi_poll_reg_field() returns success if polling times out -Added an interval_us variable in mhi_ready_state_transition() v3: -Removed config changes that crept in in the first patch v2: -Addressed review comments -Introduce new patch for to use controller defined read_reg() for polling -Add usage in RDDM download panic path as well Bhaumik Bhatt (2): bus: mhi: core: Introduce internal register poll helper function bus: mhi: core: Move to polling method to wait for MHI ready drivers/bus/mhi/core/internal.h | 3 +++ drivers/bus/mhi/core/main.c | 23 +++++++++++++++++++++++ drivers/bus/mhi/core/pm.c | 34 ++++++++++++++++------------------ 3 files changed, 42 insertions(+), 18 deletions(-) -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project