From patchwork Tue Jun 8 18:28:07 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 457530 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=-18.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 8B3A8C49EA3 for ; Tue, 8 Jun 2021 19:20:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7B086613D4 for ; Tue, 8 Jun 2021 19:20:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237106AbhFHTWP (ORCPT ); Tue, 8 Jun 2021 15:22:15 -0400 Received: from mail.kernel.org ([198.145.29.99]:41476 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235339AbhFHTTA (ORCPT ); Tue, 8 Jun 2021 15:19:00 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 1E21661985; Tue, 8 Jun 2021 18:52:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1623178334; bh=RqSRDX5Barl8n8jyZcpiKh1veqPiaBxY7tkD23nobLw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FijGGj0SwZMzzwIPNlDsVFSkU5OZaxU1BSEg8CN5AOG4Ru11XdwtB0Q4xgnkZ7vu3 3yDJDPfPpc/Ls2zBR2XnnLyVCKyJop32iZRUaQpcziyv0KT3iDi6Jneejxp6XZCAmf 8YPOgWQnNWzM5uu+pX9JG9Z6xo7m20GxLxq9quLc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Roja Rani Yarubandi , Stephen Boyd , Wolfram Sang Subject: [PATCH 5.12 157/161] i2c: qcom-geni: Suspend and resume the bus during SYSTEM_SLEEP_PM ops Date: Tue, 8 Jun 2021 20:28:07 +0200 Message-Id: <20210608175950.763974851@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210608175945.476074951@linuxfoundation.org> References: <20210608175945.476074951@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Roja Rani Yarubandi commit 57648e860485de39c800a89f849fdd03c2d31d15 upstream. 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 Signed-off-by: Wolfram Sang Signed-off-by: Greg Kroah-Hartman --- drivers/i2c/busses/i2c-qcom-geni.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) --- 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_suspe { 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_suspe 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) };