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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C74F4C433F5 for ; Sat, 5 Mar 2022 02:13:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230438AbiCECNx (ORCPT ); Fri, 4 Mar 2022 21:13:53 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51630 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230428AbiCECNw (ORCPT ); Fri, 4 Mar 2022 21:13:52 -0500 Received: from mail-wm1-x332.google.com (mail-wm1-x332.google.com [IPv6:2a00:1450:4864:20::332]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AE8D21C4B20 for ; Fri, 4 Mar 2022 18:13:01 -0800 (PST) Received: by mail-wm1-x332.google.com with SMTP id r187-20020a1c2bc4000000b003810e6b192aso6088223wmr.1 for ; Fri, 04 Mar 2022 18:13:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=46n4LaD4ZyMBoEv7QyqZkVx2QkFYWM4XtM2ZRYBTQAc=; b=YNhT1rC43mmkRlwydAFFepdxSERVaNkxX87fow+by9EHPb83YSXCR/B9MISkmRegNX ClIw8JaiErScHwWqF7KhMkyxhAhOZmf6taSF+Fad2xapIQazQbgTBJzD/W8Y9n3bDLlG H54exVT7wrijQqO2jmgZvwlTXSJckssLdc1kpjX5hKjAayRi/3uRa6+KW42M3JwW2Ug3 704Ji1VslyXQZn4M72CllKZagzaFuezvkiUHaH/vFA/smsXQUUA2+SHG/s5ZkszCTsEe K9AmwgvxAJPmkl/SFLXeIY934IkWeySjIaHYY8SqZKNZvCXAP4p5smYWDgeuf39YvY3x 4zVQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=46n4LaD4ZyMBoEv7QyqZkVx2QkFYWM4XtM2ZRYBTQAc=; b=FOELAmpLuJSvXOO5h5ySWDuAXdFqc4W99+9khf2CiqjlHVFd3J/mJcdgGVxvIsgu8i 2Ci2nqIVOwcgW+KHNZp6itpAdabVAiVEKH7cvKxd+JXOFuijwBuiL0Nr5q23qH6WH1yw z2GYVPfSfpBqGCn3BrGSSWoQ2TeQC1O8/6af/+feb33SaiA/pMr8hF2wev1x/mEtTZoB /W3SiRyrKEomxKCjX1hPO7O6JhwjGnf6+D0zi52rIm7vseNzoYEQFeCDg+cKK9hyy2LK GY6TvAiOecaGJYYN+4PI9jdzgJ1WppbJTgUqM7MoJ/ShKd5jKum3gGA24pNcFe0vvpjT HEcQ== X-Gm-Message-State: AOAM5308oE4KlGM4Dv42J8wz3mHVIUbPuEEZRpHsnxR7Kgo/oJU9Np43 YOKZlz06hhpR6cNnb3ZW8MqZOw== X-Google-Smtp-Source: ABdhPJwYilD4Xt/kURetj4ZljWfKmJHZoL78irG+7JI3sgQEgbsd84fIhQ0QI9x428rsywEa4KrtpA== X-Received: by 2002:a7b:c001:0:b0:381:1afd:5caa with SMTP id c1-20020a7bc001000000b003811afd5caamr832702wmb.35.1646446380141; Fri, 04 Mar 2022 18:13:00 -0800 (PST) Received: from localhost.localdomain (cpc78119-cwma10-2-0-cust590.7-3.cable.virginm.net. [81.96.50.79]) by smtp.gmail.com with ESMTPSA id k10-20020adfe3ca000000b001f0329ba94csm7932589wrm.18.2022.03.04.18.12.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Mar 2022 18:12:59 -0800 (PST) From: Caleb Connolly To: caleb.connolly@linaro.org, Jonathan Cameron , Lars-Peter Clausen , Rob Herring , Andy Gross , Bjorn Andersson , Lee Jones , Stephen Boyd , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org Cc: sumit.semwal@linaro.org, amit.pundir@linaro.org, john.stultz@linaro.org Subject: [PATCH v10 1/9] spmi: add a helper to look up an SPMI device from a device node Date: Sat, 5 Mar 2022 02:12:39 +0000 Message-Id: <20220305021247.1020122-2-caleb.connolly@linaro.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220305021247.1020122-1-caleb.connolly@linaro.org> References: <20220305021247.1020122-1-caleb.connolly@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The helper function spmi_device_from_of() takes a device node and returns the SPMI device associated with it. This is like of_find_device_by_node but for SPMI devices. Signed-off-by: Caleb Connolly --- drivers/spmi/spmi.c | 17 +++++++++++++++++ include/linux/spmi.h | 2 ++ 2 files changed, 19 insertions(+) diff --git a/drivers/spmi/spmi.c b/drivers/spmi/spmi.c index b37ead9e2fad..de550b777451 100644 --- a/drivers/spmi/spmi.c +++ b/drivers/spmi/spmi.c @@ -386,6 +386,23 @@ static struct bus_type spmi_bus_type = { .uevent = spmi_drv_uevent, }; +/** + * spmi_device_from_of() - get the associated SPMI device from a device node + * + * @np: device node + * + * Returns the struct spmi_device associated with a device node or NULL. + */ +inline struct spmi_device *spmi_device_from_of(struct device_node *np) +{ + struct device *dev = bus_find_device_by_of_node(&spmi_bus_type, np); + + if (dev) + return to_spmi_device(dev); + return NULL; +} +EXPORT_SYMBOL_GPL(spmi_device_from_of); + /** * spmi_controller_alloc() - Allocate a new SPMI device * @ctrl: associated controller diff --git a/include/linux/spmi.h b/include/linux/spmi.h index 729bcbf9f5ad..6ee476bc1cd6 100644 --- a/include/linux/spmi.h +++ b/include/linux/spmi.h @@ -7,6 +7,7 @@ #include #include #include +#include /* Maximum slave identifier */ #define SPMI_MAX_SLAVE_ID 16 @@ -164,6 +165,7 @@ static inline void spmi_driver_unregister(struct spmi_driver *sdrv) module_driver(__spmi_driver, spmi_driver_register, \ spmi_driver_unregister) +inline struct spmi_device *spmi_device_from_of(struct device_node *np); int spmi_register_read(struct spmi_device *sdev, u8 addr, u8 *buf); int spmi_ext_register_read(struct spmi_device *sdev, u8 addr, u8 *buf, size_t len); -- 2.35.1