From patchwork Fri Mar 18 16:00:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= X-Patchwork-Id: 12785543 X-Patchwork-Delegate: kuba@kernel.org 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 B6574C4332F for ; Fri, 18 Mar 2022 16:03:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238389AbiCRQEj (ORCPT ); Fri, 18 Mar 2022 12:04:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59690 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238374AbiCRQEg (ORCPT ); Fri, 18 Mar 2022 12:04:36 -0400 Received: from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net [217.70.183.194]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0F39C1275F; Fri, 18 Mar 2022 09:03:13 -0700 (PDT) Received: (Authenticated sender: clement.leger@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id 0E66F40020; Fri, 18 Mar 2022 16:03:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1647619391; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=K6nzaAfWaNMngOEuYPSa1o6WfkdK08VPd1q8M2c4niI=; b=OSZ5hewzHdXf7aZGTwpgXByUoG8K/3/hBmkg7sfe6OQ8e1KUqsF0Ht5YZQkUzjnwtHpfT8 fWiNZ8u1zK5nOIaWP3eCDVtADmAeSbXRn+nEaS4swQpTvligBkvahEt/Mr7abhxCIRAmPJ eNkYTIhynxXg9yTZshQAGFWSlMCyEWtPI8nezu97mcoLssEi+RK2kx7jY4E9uVGr+pl+WI z6/kboPBEoS76PTiWKA1qLYrx6e9wH93LMEBKOjbZrL8r/f2uhq4p3hKX6nH9I2s1+Q6mY Jzwwf8OSE+OG+TnN/+AoEbaVLZ2xAzTUbL8jKkMbwo+DJKBbRKbaupM35VrLrA== From: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= To: Andy Shevchenko , Daniel Scally , Heikki Krogerus , Sakari Ailus , Greg Kroah-Hartman , "'Rafael J . Wysocki '" , Wolfram Sang , Peter Rosin , Russell King , Andrew Lunn , Heiner Kallweit , "David S . Miller" , Jakub Kicinski , Paolo Abeni Cc: Hans de Goede , Thomas Petazzoni , Alexandre Belloni , Allan Nielsen , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-i2c@vger.kernel.org, netdev@vger.kernel.org, =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= Subject: [PATCH 1/6] property: add fwnode_property_read_string_index() Date: Fri, 18 Mar 2022 17:00:47 +0100 Message-Id: <20220318160059.328208-2-clement.leger@bootlin.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220318160059.328208-1-clement.leger@bootlin.com> References: <20220318160059.328208-1-clement.leger@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Add fwnode_property_read_string_index() function which allows to retrieve a string from an array by its index. This function is the equivalent of of_property_read_string_index() but for fwnode support. Signed-off-by: Clément Léger --- drivers/base/property.c | 48 ++++++++++++++++++++++++++++++++++++++++ include/linux/property.h | 3 +++ 2 files changed, 51 insertions(+) diff --git a/drivers/base/property.c b/drivers/base/property.c index e6497f6877ee..67c33c11f00c 100644 --- a/drivers/base/property.c +++ b/drivers/base/property.c @@ -451,6 +451,54 @@ int fwnode_property_match_string(const struct fwnode_handle *fwnode, } EXPORT_SYMBOL_GPL(fwnode_property_match_string); +/** + * fwnode_property_read_string_index - read a string in an array using an index + * @fwnode: Firmware node to get the property of + * @propname: Name of the property holding the array + * @index: Index of the string to look for + * @string: Pointer to the string if found + * + * Find a string by a given index in a string array and if it is found return + * the string value in @string. + * + * Return: %0 if the property was found (success), + * %-EINVAL if given arguments are not valid, + * %-ENODATA if the property does not have a value, + * %-EPROTO if the property is not an array of strings, + * %-ENXIO if no suitable firmware interface is present. + */ +int fwnode_property_read_string_index(const struct fwnode_handle *fwnode, + const char *propname, int index, + const char **string) +{ + const char **values; + int nval, ret; + + nval = fwnode_property_read_string_array(fwnode, propname, NULL, 0); + if (nval < 0) + return nval; + + if (index >= nval) + return -EINVAL; + + if (nval == 0) + return -ENODATA; + + values = kcalloc(nval, sizeof(*values), GFP_KERNEL); + if (!values) + return -ENOMEM; + + ret = fwnode_property_read_string_array(fwnode, propname, values, nval); + if (ret < 0) + goto out; + + *string = values[index]; +out: + kfree(values); + return ret; +} +EXPORT_SYMBOL_GPL(fwnode_property_read_string_index); + /** * fwnode_property_get_reference_args() - Find a reference with arguments * @fwnode: Firmware node where to look for the reference diff --git a/include/linux/property.h b/include/linux/property.h index 7399a0b45f98..a033920eb10a 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -70,6 +70,9 @@ int fwnode_property_read_string_array(const struct fwnode_handle *fwnode, size_t nval); int fwnode_property_read_string(const struct fwnode_handle *fwnode, const char *propname, const char **val); +int fwnode_property_read_string_index(const struct fwnode_handle *fwnode, + const char *propname, int index, + const char **string); int fwnode_property_match_string(const struct fwnode_handle *fwnode, const char *propname, const char *string); int fwnode_property_get_reference_args(const struct fwnode_handle *fwnode, From patchwork Fri Mar 18 16:00:48 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= X-Patchwork-Id: 12785544 X-Patchwork-Delegate: kuba@kernel.org 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 826CBC4321E for ; Fri, 18 Mar 2022 16:03:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238400AbiCRQEl (ORCPT ); Fri, 18 Mar 2022 12:04:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59700 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238376AbiCRQEg (ORCPT ); Fri, 18 Mar 2022 12:04:36 -0400 Received: from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::222]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 109F11276D; Fri, 18 Mar 2022 09:03:14 -0700 (PDT) Received: (Authenticated sender: clement.leger@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id AB29C40021; Fri, 18 Mar 2022 16:03:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1647619393; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=c/SCFKpq/JCyZCtCb1owNCXOwLEWKTbQIfZVT6MqRuA=; b=E+pvfzVnTU+Wq/ccF6OTTNlPSsSZ/7pv+Jkbbn9nM/XC2TvUEXbWFZxo9TxQepp38Xitan wMCydEEJqJmmuFZfHV/xTiWgj68IchC0Iw790PIWoNmLpTqtAdIIAU1DfooAERYbd6/Kqw oh75GASCqc1wjMSiumSKoIqghBs/5Hx6KNG5QjsbvqtcE3Uo1z+DxES2XVbKh2H3CetGAG z1+RdfzGjhdLOKseiQ2RLAj3MTrprbmfqGtLZgA5txgAZ47C655sduE3ZtxCW2QWhXDYnr hfNnnP2S6zW8B6yVhZq3JHKIVvmoFMdVReHV87V5nEPd0uHP5k3V5kp5TooL0w== From: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= To: Andy Shevchenko , Daniel Scally , Heikki Krogerus , Sakari Ailus , Greg Kroah-Hartman , "'Rafael J . Wysocki '" , Wolfram Sang , Peter Rosin , Russell King , Andrew Lunn , Heiner Kallweit , "David S . Miller" , Jakub Kicinski , Paolo Abeni Cc: Hans de Goede , Thomas Petazzoni , Alexandre Belloni , Allan Nielsen , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-i2c@vger.kernel.org, netdev@vger.kernel.org, =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= Subject: [PATCH 2/6] i2c: fwnode: add fwnode_find_i2c_adapter_by_node() Date: Fri, 18 Mar 2022 17:00:48 +0100 Message-Id: <20220318160059.328208-3-clement.leger@bootlin.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220318160059.328208-1-clement.leger@bootlin.com> References: <20220318160059.328208-1-clement.leger@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Add fwnode_find_i2c_adapter_by_node() which allows to retrieve a i2c adapter using a fwnode. Since dev_fwnode() uses the fwnode provided by the of_node member of the device, this will also work for devices were the of_node has been set and not the fwnode field. Signed-off-by: Clément Léger --- drivers/i2c/Makefile | 1 + drivers/i2c/i2c-core-fwnode.c | 41 +++++++++++++++++++++++++++++++++++ include/linux/i2c.h | 2 ++ 3 files changed, 44 insertions(+) create mode 100644 drivers/i2c/i2c-core-fwnode.c diff --git a/drivers/i2c/Makefile b/drivers/i2c/Makefile index c1d493dc9bac..c9c97675163e 100644 --- a/drivers/i2c/Makefile +++ b/drivers/i2c/Makefile @@ -6,6 +6,7 @@ obj-$(CONFIG_I2C_BOARDINFO) += i2c-boardinfo.o obj-$(CONFIG_I2C) += i2c-core.o i2c-core-objs := i2c-core-base.o i2c-core-smbus.o +i2c-core-objs += i2c-core-fwnode.o i2c-core-$(CONFIG_ACPI) += i2c-core-acpi.o i2c-core-$(CONFIG_I2C_SLAVE) += i2c-core-slave.o i2c-core-$(CONFIG_OF) += i2c-core-of.o diff --git a/drivers/i2c/i2c-core-fwnode.c b/drivers/i2c/i2c-core-fwnode.c new file mode 100644 index 000000000000..2404c2477a80 --- /dev/null +++ b/drivers/i2c/i2c-core-fwnode.c @@ -0,0 +1,41 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Linux I2C core fwnode support code + * + * Copyright (C) 2022 Microchip + */ + +#include +#include + +#include "i2c-core.h" + +static int fwnode_dev_or_parent_node_match(struct device *dev, const void *data) +{ + if (device_match_fwnode(dev, data)) + return 1; + + /* For ACPI device node, we do not want to match the parent */ + if (!is_acpi_device_node(dev_fwnode(dev)) && dev->parent) + return device_match_fwnode(dev->parent, data); + + return 0; +} + +struct i2c_adapter *fwnode_find_i2c_adapter_by_node(struct fwnode_handle *node) +{ + struct device *dev; + struct i2c_adapter *adapter; + + dev = bus_find_device(&i2c_bus_type, NULL, node, + fwnode_dev_or_parent_node_match); + if (!dev) + return NULL; + + adapter = i2c_verify_adapter(dev); + if (!adapter) + put_device(dev); + + return adapter; +} +EXPORT_SYMBOL(fwnode_find_i2c_adapter_by_node); diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 7d4f52ceb7b5..9b480a8b0a76 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -967,6 +967,8 @@ int i2c_handle_smbus_host_notify(struct i2c_adapter *adap, unsigned short addr); #endif /* I2C */ +struct i2c_adapter *fwnode_find_i2c_adapter_by_node(struct fwnode_handle *node); + #if IS_ENABLED(CONFIG_OF) /* must call put_device() when done with returned i2c_client device */ struct i2c_client *of_find_i2c_device_by_node(struct device_node *node); From patchwork Fri Mar 18 16:00:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= X-Patchwork-Id: 12785545 X-Patchwork-Delegate: kuba@kernel.org 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 099BCC433EF for ; Fri, 18 Mar 2022 16:03:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238407AbiCRQEn (ORCPT ); Fri, 18 Mar 2022 12:04:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59732 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238378AbiCRQEh (ORCPT ); Fri, 18 Mar 2022 12:04:37 -0400 Received: from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::222]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6BBD726571; Fri, 18 Mar 2022 09:03:16 -0700 (PDT) Received: (Authenticated sender: clement.leger@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id 59A334002C; Fri, 18 Mar 2022 16:03:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1647619394; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=URJAXhlDauk/l4yfi8v6pFwWxIgQSIBOv7Iyc/z2WsI=; b=HD8A8zZudux7YST/AR/1UzlHS80Dir45yH1+FXLMATteWo8NiWQD0e5u0RVgcOAxNTAg84 7enAm4/7is9GAx4Jb0WWO7XR5ZluwWvWJaEqS96NnpLAcXkzeu7S+KP7+l52abA19cLXd1 Tf3E4Ta2mDiyKRLHYsPhZJ9TjQUCQUGDSQuQXSnMknahrDH2Z4nkJDKJ+msfNo+2dLLu8q J+s+nos3Yl4U840FYlxUfromtZOqC4QOGnnM3qCJkL7J94ctpb9hNkuJJu9T/yk6lsTdUg C5TEYj3xtTIn304uukk/tLnEy2w4qmIIwCHg5c1H5cCa3EnXL6ev049wAB+KqQ== From: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= To: Andy Shevchenko , Daniel Scally , Heikki Krogerus , Sakari Ailus , Greg Kroah-Hartman , "'Rafael J . Wysocki '" , Wolfram Sang , Peter Rosin , Russell King , Andrew Lunn , Heiner Kallweit , "David S . Miller" , Jakub Kicinski , Paolo Abeni Cc: Hans de Goede , Thomas Petazzoni , Alexandre Belloni , Allan Nielsen , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-i2c@vger.kernel.org, netdev@vger.kernel.org, =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= Subject: [PATCH 3/6] i2c: of: use fwnode_get_i2c_adapter_by_node() Date: Fri, 18 Mar 2022 17:00:49 +0100 Message-Id: <20220318160059.328208-4-clement.leger@bootlin.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220318160059.328208-1-clement.leger@bootlin.com> References: <20220318160059.328208-1-clement.leger@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Since the new fwnode function does the same check that was done by of_get_i2c_adapter_by_node(), call this one to avoid code duplication. Signed-off-by: Clément Léger --- drivers/i2c/i2c-core-of.c | 30 ------------------------------ include/linux/i2c.h | 5 ++++- 2 files changed, 4 insertions(+), 31 deletions(-) diff --git a/drivers/i2c/i2c-core-of.c b/drivers/i2c/i2c-core-of.c index 3ed74aa4b44b..be7d66aa0f49 100644 --- a/drivers/i2c/i2c-core-of.c +++ b/drivers/i2c/i2c-core-of.c @@ -113,17 +113,6 @@ void of_i2c_register_devices(struct i2c_adapter *adap) of_node_put(bus); } -static int of_dev_or_parent_node_match(struct device *dev, const void *data) -{ - if (dev->of_node == data) - return 1; - - if (dev->parent) - return dev->parent->of_node == data; - - return 0; -} - /* must call put_device() when done with returned i2c_client device */ struct i2c_client *of_find_i2c_device_by_node(struct device_node *node) { @@ -142,25 +131,6 @@ struct i2c_client *of_find_i2c_device_by_node(struct device_node *node) } EXPORT_SYMBOL(of_find_i2c_device_by_node); -/* must call put_device() when done with returned i2c_adapter device */ -struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node) -{ - struct device *dev; - struct i2c_adapter *adapter; - - dev = bus_find_device(&i2c_bus_type, NULL, node, - of_dev_or_parent_node_match); - if (!dev) - return NULL; - - adapter = i2c_verify_adapter(dev); - if (!adapter) - put_device(dev); - - return adapter; -} -EXPORT_SYMBOL(of_find_i2c_adapter_by_node); - /* must call i2c_put_adapter() when done with returned i2c_adapter device */ struct i2c_adapter *of_get_i2c_adapter_by_node(struct device_node *node) { diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 9b480a8b0a76..d1f384b805ad 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -974,7 +974,10 @@ struct i2c_adapter *fwnode_find_i2c_adapter_by_node(struct fwnode_handle *node); struct i2c_client *of_find_i2c_device_by_node(struct device_node *node); /* must call put_device() when done with returned i2c_adapter device */ -struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node); +static inline struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node) +{ + return fwnode_find_i2c_adapter_by_node(of_fwnode_handle(node)); +} /* must call i2c_put_adapter() when done with returned i2c_adapter device */ struct i2c_adapter *of_get_i2c_adapter_by_node(struct device_node *node); From patchwork Fri Mar 18 16:00:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= X-Patchwork-Id: 12785546 X-Patchwork-Delegate: kuba@kernel.org 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 B2D26C433FE for ; Fri, 18 Mar 2022 16:03:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238127AbiCRQFQ (ORCPT ); Fri, 18 Mar 2022 12:05:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59778 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238378AbiCRQEv (ORCPT ); Fri, 18 Mar 2022 12:04:51 -0400 Received: from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net [217.70.183.194]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9D8E17563D; Fri, 18 Mar 2022 09:03:17 -0700 (PDT) Received: (Authenticated sender: clement.leger@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id 10D5340022; Fri, 18 Mar 2022 16:03:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1647619396; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=dKFshFvhHLkkwMZS+Ktyvof/6+xmfHa5cEKRMGqTKV8=; b=DssaJf8uafbxknmyrTjzi+tW0EOmJG4ETMfxZbEip3Lg6er0MH4+RgfU/HnVJOimG0nasB iNmmWnW5dIKR4zC283laAqPVsGvtcDGqQ/JvHThukGc5RQPK4OIb4N9H18zGDZOSZJWCJI 0M7gf8aB94tr5SSmFeYZ7Lh+W7CqQJNEw3M24VVBLJHGOZw4Omj22Od832lIMv2CmGvtfh ntiiIU7x0zBSfD085uj6FhVmQs0j3vVp8e+f9ozw3x+IZWFNyppRkh2RMdvMmEUm8hUmPu av9mli6sZHGHDVrdQBwuRKjePfJWM07tZBhtIFfoU2GodBvf+0TNooNx/4hAuw== From: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= To: Andy Shevchenko , Daniel Scally , Heikki Krogerus , Sakari Ailus , Greg Kroah-Hartman , "'Rafael J . Wysocki '" , Wolfram Sang , Peter Rosin , Russell King , Andrew Lunn , Heiner Kallweit , "David S . Miller" , Jakub Kicinski , Paolo Abeni Cc: Hans de Goede , Thomas Petazzoni , Alexandre Belloni , Allan Nielsen , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-i2c@vger.kernel.org, netdev@vger.kernel.org, =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= Subject: [PATCH 4/6] i2c: mux: pinctrl: remove CONFIG_OF dependency and use fwnode API Date: Fri, 18 Mar 2022 17:00:50 +0100 Message-Id: <20220318160059.328208-5-clement.leger@bootlin.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220318160059.328208-1-clement.leger@bootlin.com> References: <20220318160059.328208-1-clement.leger@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org In order to use i2c muxes with software_node when added with a struct mfd_cell, switch to fwnode API. The fwnode layer will allow to use this with both device_node and software_node. Signed-off-by: Clément Léger --- drivers/i2c/muxes/Kconfig | 1 - drivers/i2c/muxes/i2c-mux-pinctrl.c | 21 +++++++++++---------- 2 files changed, 11 insertions(+), 11 deletions(-) diff --git a/drivers/i2c/muxes/Kconfig b/drivers/i2c/muxes/Kconfig index 1708b1a82da2..d9cb15cfba3e 100644 --- a/drivers/i2c/muxes/Kconfig +++ b/drivers/i2c/muxes/Kconfig @@ -77,7 +77,6 @@ config I2C_MUX_PCA954x config I2C_MUX_PINCTRL tristate "pinctrl-based I2C multiplexer" depends on PINCTRL - depends on OF || COMPILE_TEST help If you say yes to this option, support will be included for an I2C multiplexer that uses the pinctrl subsystem, i.e. pin multiplexing. diff --git a/drivers/i2c/muxes/i2c-mux-pinctrl.c b/drivers/i2c/muxes/i2c-mux-pinctrl.c index f1bb00a11ad6..200890d7a625 100644 --- a/drivers/i2c/muxes/i2c-mux-pinctrl.c +++ b/drivers/i2c/muxes/i2c-mux-pinctrl.c @@ -53,19 +53,20 @@ static struct i2c_adapter *i2c_mux_pinctrl_root_adapter( static struct i2c_adapter *i2c_mux_pinctrl_parent_adapter(struct device *dev) { - struct device_node *np = dev->of_node; - struct device_node *parent_np; + struct fwnode_handle *fwnode = dev_fwnode(dev); + struct fwnode_handle *parent_np; struct i2c_adapter *parent; - parent_np = of_parse_phandle(np, "i2c-parent", 0); + parent_np = fwnode_find_reference(fwnode, "i2c-parent", 0); if (!parent_np) { dev_err(dev, "Cannot parse i2c-parent\n"); return ERR_PTR(-ENODEV); } - parent = of_find_i2c_adapter_by_node(parent_np); - of_node_put(parent_np); - if (!parent) + parent = fwnode_find_i2c_adapter_by_node(parent_np); + if (!parent) { + dev_err(dev, "Cannot find i2c-parent\n"); return ERR_PTR(-EPROBE_DEFER); + } return parent; } @@ -73,7 +74,7 @@ static struct i2c_adapter *i2c_mux_pinctrl_parent_adapter(struct device *dev) static int i2c_mux_pinctrl_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct device_node *np = dev->of_node; + struct fwnode_handle *np = dev_fwnode(dev); struct i2c_mux_core *muxc; struct i2c_mux_pinctrl *mux; struct i2c_adapter *parent; @@ -81,7 +82,7 @@ static int i2c_mux_pinctrl_probe(struct platform_device *pdev) int num_names, i, ret; const char *name; - num_names = of_property_count_strings(np, "pinctrl-names"); + num_names = fwnode_property_string_array_count(np, "pinctrl-names"); if (num_names < 0) { dev_err(dev, "Cannot parse pinctrl-names: %d\n", num_names); @@ -111,8 +112,8 @@ static int i2c_mux_pinctrl_probe(struct platform_device *pdev) } for (i = 0; i < num_names; i++) { - ret = of_property_read_string_index(np, "pinctrl-names", i, - &name); + ret = fwnode_property_read_string_index(np, "pinctrl-names", i, + &name); if (ret < 0) { dev_err(dev, "Cannot parse pinctrl-names: %d\n", ret); goto err_put_parent; From patchwork Fri Mar 18 16:00:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= X-Patchwork-Id: 12785547 X-Patchwork-Delegate: kuba@kernel.org 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 7BCE4C433F5 for ; Fri, 18 Mar 2022 16:04:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238477AbiCRQFR (ORCPT ); Fri, 18 Mar 2022 12:05:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60418 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238386AbiCRQEv (ORCPT ); Fri, 18 Mar 2022 12:04:51 -0400 Received: from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net [217.70.183.194]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9C2DA2FA; Fri, 18 Mar 2022 09:03:19 -0700 (PDT) Received: (Authenticated sender: clement.leger@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id 8AF7240010; Fri, 18 Mar 2022 16:03:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1647619398; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ocoul7ljnoZTu5D9WXKfAGT93AKe2N6I6+O6VziLVXM=; b=JgukWiqmvJP2LB94bzrJ6k92wsnksVy3gUg8f+rgXMif7z9FNa6tU4kEt0N2juG78W5oky lm6qSlRqPBSoDcUuWyvqnPCqPiKByqnEk54UCWXVgRKFNhqujXUkRgyhWD+aXzOOwlLNC2 rZPwYGCKMUTpyUtShkdofWsK89ZP8So/uExfWgjX2pMfNJ9UPYUO/5tqzMimDMyyz0uY1J /umyNjlvAih07ofEy70b32vXwUXZNWNjXp80ppHmYexcTXpVHPC/7pVka7peo/BdLdcCAE fTAXCJh0zj/t1SxknChQL0Mv3PEIyAryEWHeamFBMf/kMwGFQhAPHudicXIVyg== From: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= To: Andy Shevchenko , Daniel Scally , Heikki Krogerus , Sakari Ailus , Greg Kroah-Hartman , "'Rafael J . Wysocki '" , Wolfram Sang , Peter Rosin , Russell King , Andrew Lunn , Heiner Kallweit , "David S . Miller" , Jakub Kicinski , Paolo Abeni Cc: Hans de Goede , Thomas Petazzoni , Alexandre Belloni , Allan Nielsen , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-i2c@vger.kernel.org, netdev@vger.kernel.org, =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= Subject: [PATCH 5/6] i2c: mux: add support for fwnode Date: Fri, 18 Mar 2022 17:00:51 +0100 Message-Id: <20220318160059.328208-6-clement.leger@bootlin.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220318160059.328208-1-clement.leger@bootlin.com> References: <20220318160059.328208-1-clement.leger@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Modify i2c_mux_add_adapter() to use with fwnode API to allow creating mux adapters with fwnode based devices. This allows to have a node independent support for i2c muxes. Signed-off-by: Clément Léger --- drivers/i2c/i2c-mux.c | 39 ++++++++++++++++++--------------------- 1 file changed, 18 insertions(+), 21 deletions(-) diff --git a/drivers/i2c/i2c-mux.c b/drivers/i2c/i2c-mux.c index 774507b54b57..93c916220da5 100644 --- a/drivers/i2c/i2c-mux.c +++ b/drivers/i2c/i2c-mux.c @@ -24,7 +24,7 @@ #include #include #include -#include +#include #include #include @@ -347,38 +347,35 @@ int i2c_mux_add_adapter(struct i2c_mux_core *muxc, else priv->adap.class = class; - /* - * Try to populate the mux adapter's of_node, expands to - * nothing if !CONFIG_OF. - */ - if (muxc->dev->of_node) { - struct device_node *dev_node = muxc->dev->of_node; - struct device_node *mux_node, *child = NULL; + /* Try to populate the mux adapter's device node */ + if (dev_fwnode(muxc->dev) && !has_acpi_companion(muxc->dev)) { + struct fwnode_handle *dev_node = dev_fwnode(muxc->dev); + struct fwnode_handle *mux_node, *child = NULL; u32 reg; if (muxc->arbitrator) - mux_node = of_get_child_by_name(dev_node, "i2c-arb"); + mux_node = fwnode_get_named_child_node(dev_node, "i2c-arb"); else if (muxc->gate) - mux_node = of_get_child_by_name(dev_node, "i2c-gate"); + mux_node = fwnode_get_named_child_node(dev_node, "i2c-gate"); else - mux_node = of_get_child_by_name(dev_node, "i2c-mux"); + mux_node = fwnode_get_named_child_node(dev_node, "i2c-mux"); if (mux_node) { /* A "reg" property indicates an old-style DT entry */ - if (!of_property_read_u32(mux_node, "reg", ®)) { - of_node_put(mux_node); + if (!fwnode_property_read_u32(mux_node, "reg", ®)) { + fwnode_handle_put(mux_node); mux_node = NULL; } } if (!mux_node) - mux_node = of_node_get(dev_node); + mux_node = fwnode_handle_get(dev_node); else if (muxc->arbitrator || muxc->gate) - child = of_node_get(mux_node); + child = fwnode_handle_get(mux_node); if (!child) { - for_each_child_of_node(mux_node, child) { - ret = of_property_read_u32(child, "reg", ®); + fwnode_for_each_child_node(mux_node, child) { + ret = fwnode_property_read_u32(child, "reg", ®); if (ret) continue; if (chan_id == reg) @@ -386,8 +383,8 @@ int i2c_mux_add_adapter(struct i2c_mux_core *muxc, } } - priv->adap.dev.of_node = child; - of_node_put(mux_node); + device_set_node(&priv->adap.dev, child); + fwnode_handle_put(mux_node); } /* @@ -444,7 +441,7 @@ void i2c_mux_del_adapters(struct i2c_mux_core *muxc) while (muxc->num_adapters) { struct i2c_adapter *adap = muxc->adapter[--muxc->num_adapters]; struct i2c_mux_priv *priv = adap->algo_data; - struct device_node *np = adap->dev.of_node; + struct fwnode_handle *np = dev_fwnode(&adap->dev); muxc->adapter[muxc->num_adapters] = NULL; @@ -454,7 +451,7 @@ void i2c_mux_del_adapters(struct i2c_mux_core *muxc) sysfs_remove_link(&priv->adap.dev.kobj, "mux_device"); i2c_del_adapter(adap); - of_node_put(np); + fwnode_handle_put(np); kfree(priv); } } From patchwork Fri Mar 18 16:00:52 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= X-Patchwork-Id: 12785548 X-Patchwork-Delegate: kuba@kernel.org 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 DC5F8C3525B for ; Fri, 18 Mar 2022 16:04:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238485AbiCRQFS (ORCPT ); Fri, 18 Mar 2022 12:05:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60404 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238421AbiCRQE6 (ORCPT ); Fri, 18 Mar 2022 12:04:58 -0400 Received: from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net [217.70.183.194]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5850C1275F; Fri, 18 Mar 2022 09:03:20 -0700 (PDT) Received: (Authenticated sender: clement.leger@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id 3917440025; Fri, 18 Mar 2022 16:03:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1647619399; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=hkT3kxdBeyWxML9PLamI62loW/3vgqU0z8FJV3BD28o=; b=kNvOi6EATLgSqKXnMWrlPMk7/BcKZmBbzxRfGyehpI9Epj0ormYcWZpz/4ifFYkhjdPANp jZppFt7fzG6Tkk3zzSnHo71zfBhnTIgoBaD3NSflqJUAVfaq43FkrZuuPqG7KStRonlg8Y 3y85yjIlgLlQDeBOh5tDkjwk9orxe6m2gsLhhO3U+RuuN8KmqYc15nS6R22WzALGbe+T2J c+ClbGhnC37WaprN3+TH16p4VbdbuAK8n8V/GspxTWAnt6JpUxTKBJeF8pFLZ74Fztlb25 KpIpjOz4K4+LX2TVuqtvuloU20z6WbMFH0p2YuIiVDOvxSj+NXdPTZ7UOKDbpg== From: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= To: Andy Shevchenko , Daniel Scally , Heikki Krogerus , Sakari Ailus , Greg Kroah-Hartman , "'Rafael J . Wysocki '" , Wolfram Sang , Peter Rosin , Russell King , Andrew Lunn , Heiner Kallweit , "David S . Miller" , Jakub Kicinski , Paolo Abeni Cc: Hans de Goede , Thomas Petazzoni , Alexandre Belloni , Allan Nielsen , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-i2c@vger.kernel.org, netdev@vger.kernel.org, =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= Subject: [PATCH 6/6] net: sfp: add support for fwnode Date: Fri, 18 Mar 2022 17:00:52 +0100 Message-Id: <20220318160059.328208-7-clement.leger@bootlin.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220318160059.328208-1-clement.leger@bootlin.com> References: <20220318160059.328208-1-clement.leger@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Add support to retrieve a i2c bus in sfp with a fwnode. This support is using the fwnode API which also works with device-tree and ACPI. For this purpose, the device-tree and ACPI code handling the i2c adapter retrieval was factorized with the new code. This also allows i2c devices using a software_node description to be used by sfp code. Signed-off-by: Clément Léger --- drivers/net/phy/sfp.c | 46 +++++++++++++------------------------------ 1 file changed, 14 insertions(+), 32 deletions(-) diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c index 4720b24ca51b..3f57b1fbf413 100644 --- a/drivers/net/phy/sfp.c +++ b/drivers/net/phy/sfp.c @@ -2483,7 +2483,7 @@ static void sfp_cleanup(void *data) static int sfp_probe(struct platform_device *pdev) { const struct sff_data *sff; - struct i2c_adapter *i2c; + struct i2c_adapter *i2c = NULL; char *sfp_irq_name; struct sfp *sfp; int err, i; @@ -2499,43 +2499,25 @@ static int sfp_probe(struct platform_device *pdev) return err; sff = sfp->type = &sfp_data; + if (dev_fwnode(&pdev->dev)) { + struct fwnode_handle *fwnode = dev_fwnode(&pdev->dev); + struct fwnode_handle *np; - if (pdev->dev.of_node) { - struct device_node *node = pdev->dev.of_node; - const struct of_device_id *id; - struct device_node *np; - - id = of_match_node(sfp_of_match, node); - if (WARN_ON(!id)) - return -EINVAL; + if (!is_acpi_device_node(fwnode)) { + sff = device_get_match_data(&pdev->dev); + if (WARN_ON(!sff)) + return -EINVAL; - sff = sfp->type = id->data; - - np = of_parse_phandle(node, "i2c-bus", 0); - if (!np) { - dev_err(sfp->dev, "missing 'i2c-bus' property\n"); - return -ENODEV; + sfp->type = sff; } - i2c = of_find_i2c_adapter_by_node(np); - of_node_put(np); - } else if (has_acpi_companion(&pdev->dev)) { - struct acpi_device *adev = ACPI_COMPANION(&pdev->dev); - struct fwnode_handle *fw = acpi_fwnode_handle(adev); - struct fwnode_reference_args args; - struct acpi_handle *acpi_handle; - int ret; - - ret = acpi_node_get_property_reference(fw, "i2c-bus", 0, &args); - if (ret || !is_acpi_device_node(args.fwnode)) { - dev_err(&pdev->dev, "missing 'i2c-bus' property\n"); + np = fwnode_find_reference(fwnode, "i2c-bus", 0); + if (!np) { + dev_err(&pdev->dev, "Cannot parse i2c-bus\n"); return -ENODEV; } - - acpi_handle = ACPI_HANDLE_FWNODE(args.fwnode); - i2c = i2c_acpi_find_adapter_by_handle(acpi_handle); - } else { - return -EINVAL; + i2c = fwnode_find_i2c_adapter_by_node(np); + fwnode_handle_put(np); } if (!i2c)