From patchwork Tue May 25 13:10:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roja Rani Yarubandi X-Patchwork-Id: 12278757 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 A7E32C47088 for ; Tue, 25 May 2021 13:12:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 928356140B for ; Tue, 25 May 2021 13:12:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233105AbhEYNNh (ORCPT ); Tue, 25 May 2021 09:13:37 -0400 Received: from alexa-out.qualcomm.com ([129.46.98.28]:25080 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233057AbhEYNN0 (ORCPT ); Tue, 25 May 2021 09:13:26 -0400 Received: from ironmsg-lv-alpha.qualcomm.com ([10.47.202.13]) by alexa-out.qualcomm.com with ESMTP; 25 May 2021 06:11:41 -0700 X-QCInternal: smtphost Received: from ironmsg01-blr.qualcomm.com ([10.86.208.130]) by ironmsg-lv-alpha.qualcomm.com with ESMTP/TLS/AES256-SHA; 25 May 2021 06:11:39 -0700 X-QCInternal: smtphost Received: from c-rojay-linux.qualcomm.com ([10.206.21.80]) by ironmsg01-blr.qualcomm.com with ESMTP; 25 May 2021 18:40:58 +0530 Received: by c-rojay-linux.qualcomm.com (Postfix, from userid 88981) id 262F6334E; Tue, 25 May 2021 18:40:57 +0530 (IST) From: Roja Rani Yarubandi To: wsa@kernel.org Cc: swboyd@chromium.org, dianders@chromium.org, saiprakash.ranjan@codeaurora.org, gregkh@linuxfoundation.org, mka@chromium.org, skananth@codeaurora.org, msavaliy@qti.qualcomm.com, skakit@codeaurora.org, rnayak@codeaurora.org, agross@kernel.org, bjorn.andersson@linaro.org, linux-arm-msm@vger.kernel.org, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, sumit.semwal@linaro.org, linux-media@vger.kernel.org, Roja Rani Yarubandi Subject: [PATCH V11 2/2] i2c: i2c-qcom-geni: Suspend and resume the bus during SYSTEM_SLEEP_PM ops Date: Tue, 25 May 2021 18:40:51 +0530 Message-Id: <20210525131051.31250-3-rojay@codeaurora.org> X-Mailer: git-send-email 2.29.0 In-Reply-To: <20210525131051.31250-1-rojay@codeaurora.org> References: <20210525131051.31250-1-rojay@codeaurora.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Mark bus as suspended during system suspend to block the future transfers. Implement geni_i2c_resume_noirq() to resume the bus. Fixes: 37692de5d523 ("i2c: i2c-qcom-geni: Add bus driver for the Qualcomm GENI I2C controller") Signed-off-by: Roja Rani Yarubandi Reviewed-by: Stephen Boyd --- Changes in V11: - This is newly added patch in this V11 series. drivers/i2c/busses/i2c-qcom-geni.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c index c3ae66ba6345..671f4a52275e 100644 --- a/drivers/i2c/busses/i2c-qcom-geni.c +++ b/drivers/i2c/busses/i2c-qcom-geni.c @@ -698,6 +698,8 @@ static int __maybe_unused geni_i2c_suspend_noirq(struct device *dev) { struct geni_i2c_dev *gi2c = dev_get_drvdata(dev); + i2c_mark_adapter_suspended(&gi2c->adap); + if (!gi2c->suspended) { geni_i2c_runtime_suspend(dev); pm_runtime_disable(dev); @@ -707,8 +709,16 @@ static int __maybe_unused geni_i2c_suspend_noirq(struct device *dev) return 0; } +static int __maybe_unused geni_i2c_resume_noirq(struct device *dev) +{ + struct geni_i2c_dev *gi2c = dev_get_drvdata(dev); + + i2c_mark_adapter_resumed(&gi2c->adap); + return 0; +} + static const struct dev_pm_ops geni_i2c_pm_ops = { - SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(geni_i2c_suspend_noirq, NULL) + SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(geni_i2c_suspend_noirq, geni_i2c_resume_noirq) SET_RUNTIME_PM_OPS(geni_i2c_runtime_suspend, geni_i2c_runtime_resume, NULL) };