From patchwork Fri Oct 15 10:47:20 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lindgren X-Patchwork-Id: 12561011 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EB47EC433FE for ; Fri, 15 Oct 2021 10:47:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D873A6109E for ; Fri, 15 Oct 2021 10:47:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238030AbhJOKtt (ORCPT ); Fri, 15 Oct 2021 06:49:49 -0400 Received: from muru.com ([72.249.23.125]:44918 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229690AbhJOKtt (ORCPT ); Fri, 15 Oct 2021 06:49:49 -0400 Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id 9E1658203; Fri, 15 Oct 2021 10:48:13 +0000 (UTC) From: Tony Lindgren To: Ulf Hansson Cc: Adrian Hunter , Chunyan Zhang , Faiz Abbas , Kishon Vijay Abraham I , Santosh Shilimkar , linux-mmc@vger.kernel.org, linux-omap@vger.kernel.org, Rob Herring , devicetree@vger.kernel.org Subject: [PATCH 6/6] mmc: sdhci-omap: Configure optional wakeirq Date: Fri, 15 Oct 2021 13:47:20 +0300 Message-Id: <20211015104720.52240-7-tony@atomide.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211015104720.52240-1-tony@atomide.com> References: <20211015104720.52240-1-tony@atomide.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org Configure optional wakeirq. This may be optionally configured for SDIO dat1 pin for wake-up events for SoCs that support deeper idle states. Signed-off-by: Tony Lindgren --- drivers/mmc/host/sdhci-omap.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/mmc/host/sdhci-omap.c b/drivers/mmc/host/sdhci-omap.c --- a/drivers/mmc/host/sdhci-omap.c +++ b/drivers/mmc/host/sdhci-omap.c @@ -12,8 +12,10 @@ #include #include #include +#include #include #include +#include #include #include #include @@ -117,6 +119,7 @@ struct sdhci_omap_host { struct pinctrl *pinctrl; struct pinctrl_state **pinctrl_state; + int wakeirq; bool is_tuning; /* Offset for omap specific registers from base */ @@ -1358,6 +1361,25 @@ static int sdhci_omap_probe(struct platform_device *pdev) if (ret) goto err_cleanup_host; + /* + * SDIO devices can use the dat1 pin as a wake-up interrupt. Some + * devices like wl1xxx, use an out-of-band GPIO interrupt instead. + */ + omap_host->wakeirq = of_irq_get_byname(dev->of_node, "wakeup"); + if (omap_host->wakeirq == -EPROBE_DEFER) { + ret = -EPROBE_DEFER; + goto err_cleanup_host; + } + if (omap_host->wakeirq > 0) { + device_init_wakeup(dev, true); + ret = dev_pm_set_dedicated_wake_irq(dev, omap_host->wakeirq); + if (ret) { + device_init_wakeup(dev, false); + goto err_cleanup_host; + } + host->mmc->pm_caps |= MMC_PM_KEEP_POWER | MMC_PM_WAKE_SDIO_IRQ; + } + pm_runtime_mark_last_busy(dev); pm_runtime_put_autosuspend(dev); @@ -1385,6 +1407,8 @@ static int sdhci_omap_remove(struct platform_device *pdev) pm_runtime_get_sync(dev); sdhci_remove_host(host, true); + device_init_wakeup(dev, false); + dev_pm_clear_wake_irq(dev); pm_runtime_dont_use_autosuspend(dev); pm_runtime_put_sync(dev); /* Ensure device gets disabled despite userspace sysfs config */