From patchwork Wed Mar 23 09:18:10 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: 553813 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 7A7FFC433F5 for ; Wed, 23 Mar 2022 09:20:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240825AbiCWJWK (ORCPT ); Wed, 23 Mar 2022 05:22:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41694 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243154AbiCWJVu (ORCPT ); Wed, 23 Mar 2022 05:21:50 -0400 Received: from relay4-d.mail.gandi.net (relay4-d.mail.gandi.net [217.70.183.196]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 694F976291; Wed, 23 Mar 2022 02:20:07 -0700 (PDT) Received: (Authenticated sender: clement.leger@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id 56466E000A; Wed, 23 Mar 2022 09:20:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1648027206; 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=HUpLm117R6qk/dVKFhWwKw0DOB6khYAmxgji50KW67s=; b=dPvmXmGtXpgBmU1X0IlbQ4qB7A3M7R3VFWbgsUAMc7U5dSbAoIHqa/TMUyBECy09gFb/sd dfMTJ3l3p0921MauzwIIx3fCOvczkB+8yWh7YKgRn5ymB65znHPpRYIpxHFdKjYvH6KoYp EvVJub2GPjbY0sIR6LXTRHvm6BHU0NZQuEEMdpTkm2LG7AyqVHJl/4DWH3fFClWgTcnXhY jLavWf80tTzW7suR7DkG20a+ZsdTrQFXPecq5fsrwosUmhnGdys/pr07IhpRWT5fMLAHtJ h2BgrEZOTk5hDJms6fdEeEqUY3ErY2Rs5xv29gmvFgBRA+mcCHailEX40WSn3A== From: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= To: Andy Shevchenko , Daniel Scally , Heikki Krogerus , Sakari Ailus , Greg Kroah-Hartman , "Rafael J . Wysocki" , Wolfram Sang , Peter Rosin , Rob Herring , Frank Rowand , Len Brown 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, =?utf-8?b?Q2zDqW1l?= =?utf-8?b?bnQgTMOpZ2Vy?= Subject: [PATCH v2 7/7] i2c: mux: add support for fwnode Date: Wed, 23 Mar 2022 10:18:10 +0100 Message-Id: <20220323091810.329217-8-clement.leger@bootlin.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220323091810.329217-1-clement.leger@bootlin.com> References: <20220323091810.329217-1-clement.leger@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Modify i2c_mux_add_adapter() to use the fwnode API to create mux adapters with fwnode based devices. This allows to have a node agnostic 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..98d735349bd6 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 *fwnode = 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(fwnode); kfree(priv); } }