From patchwork Tue Jul 4 07:43:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vincent Whitchurch X-Patchwork-Id: 699505 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 A80C4EB64D9 for ; Tue, 4 Jul 2023 07:43:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231134AbjGDHnk (ORCPT ); Tue, 4 Jul 2023 03:43:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54264 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231127AbjGDHnj (ORCPT ); Tue, 4 Jul 2023 03:43:39 -0400 Received: from smtp2.axis.com (smtp2.axis.com [195.60.68.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ED9B3E73; Tue, 4 Jul 2023 00:43:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=axis.com; q=dns/txt; s=axis-central1; t=1688456612; x=1719992612; h=from:date:subject:mime-version:content-transfer-encoding: message-id:to:cc; bh=fSDO3rrBra1awm9kf+KLRv/kWybe/6y7zQStYPKcuJE=; b=PlI8YPbsUZPf8lQcW/lE5uR9+rbGO5Iu3Fq+IU+obsG70Gn1mMRUUtK+ o/Yuz5qcOW6J/BglKElPRCnk7iLF+h46Cz8Jl8esbeCfW51E8l8pxkApj D6Efne75hS1XdB8zqt6sIdEuDPccGp/aIEGS3Qtqx+F5bI9hj3TaJQHV1 kio0rkbB5WZhucnv1YcMRhzHcxk/tHIknnrRS7gg0ZN6YSayVzG4sJMn+ d9ku7msHD8V8YlpdM8+/QocjezLbnO6h8rRU5m8qIJOR9Du8rvnKNQ6HN AraErZt+0po4UyuOV7M8mV3fC5FRiATOwJP/ur5lTMHhyawOnetx9pUUB Q==; From: Vincent Whitchurch Date: Tue, 4 Jul 2023 09:43:29 +0200 Subject: [PATCH] power: supply: Propagate of_node to child device MIME-Version: 1.0 Message-ID: <20230704-power-of-v1-1-cc82d2eda65b@axis.com> X-B4-Tracking: v=1; b=H4sIAKDNo2QC/x2NQQrDMAwEvxJ0rsB1DQn9SunBStaNLlaQoS2E/ L1Oj7PMMjs1uKLRfdjJ8damVjtcLwPNa64vsC6dKYZ4C2NIvNkHzlY4IWYJIkjTQl2X3MDiuc7 reShm6Zw3R9Hvv/B4HscPzuYD0nEAAAA= To: Sebastian Reichel CC: , , , Vincent Whitchurch X-Mailer: b4 0.12.2 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Ensure that the dynamically created power supply device sets its ->of_node if the parent device has one. This brings it in line with several other subsystems (see git grep 'of_node =.*parent.*of_node') and allows easier identification of the device from udev rules and similar. Before this patch: /sys/class/power_supply# ls -l bq256xx-battery/of_node ls: cannot access 'bq256xx-battery/of_node': No such file or directory # ls -l bq256xx-battery/hwmon1/of_node ls: cannot access 'bq256xx-battery/hwmon1/of_node': No such file or directory After: /sys/class/power_supply# ls -l bq256xx-battery/of_node lrwxrwxrwx 1 root root 0 May 17 09:14 bq256xx-battery/of_node -> ../../../../../../../../firmware/devicetree/base/virtio@1/i2c/bq25619@09 # ls -l bq256xx-battery/hwmon1/of_node lrwxrwxrwx 1 root root 0 May 17 09:14 bq256xx-battery/hwmon1/of_node -> ../../../../../../../../../firmware/devicetree/base/virtio@1/i2c/bq25619@09 Signed-off-by: Vincent Whitchurch --- drivers/power/supply/power_supply_core.c | 1 + 1 file changed, 1 insertion(+) --- base-commit: 6995e2de6891c724bfeb2db33d7b87775f913ad1 change-id: 20230704-power-of-4e2ab0bbe48d Best regards, diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/supply/power_supply_core.c index 3791aec69ddc6..8769d82dd9c3d 100644 --- a/drivers/power/supply/power_supply_core.c +++ b/drivers/power/supply/power_supply_core.c @@ -1368,6 +1368,7 @@ __power_supply_register(struct device *parent, dev->class = power_supply_class; dev->type = &power_supply_dev_type; dev->parent = parent; + dev->of_node = parent->of_node; dev->release = power_supply_dev_release; dev_set_drvdata(dev, psy); psy->desc = desc;