From patchwork Wed Jan 20 07:33:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Saravana Kannan X-Patchwork-Id: 368194 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT, USER_IN_DEF_DKIM_WL autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6CEF9C433E0 for ; Wed, 20 Jan 2021 07:34:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2F61A23109 for ; Wed, 20 Jan 2021 07:34:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726634AbhATHd7 (ORCPT ); Wed, 20 Jan 2021 02:33:59 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48448 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726678AbhATHd4 (ORCPT ); Wed, 20 Jan 2021 02:33:56 -0500 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E4F93C061757 for ; Tue, 19 Jan 2021 23:33:14 -0800 (PST) Received: by mail-yb1-xb4a.google.com with SMTP id l3so18712978ybl.17 for ; Tue, 19 Jan 2021 23:33:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:message-id:mime-version:subject:from:to:cc; bh=ntIoASCRpCylyuUWo1BxH783z7pAgM+MQ2ilEpRkz7U=; b=BnUV3D1wMPwn8m5vQQJGnS+fi7DxxuEzsF9ZkKD76GNjqyPz6FWg+2C0rZ+BxXyJOY IEBUx/mqJVeen2ie16qdOpNeLzVQp4pdB3s77QDKY5uHcsinusbJoNfEvJBDGWL6UxRr SIegZIhrV+NuAZFrjuUAEXHa0RZZ4gpo+N1S/1DsW8oCknaa7Cz3gSY2hBRaz40+CNni 5HJnxF5oLfgsGttUM9odNEAaDJNAVg0MSjanbsfnTYUj8YsmhEk3LO+wH6rrTpx6XSP4 NXW4cNDYsQ/6jLEsBXCOxF0pNZFJyLBqivkfXalVs8LVzmYAppJObW+inzVsq0oj5D4X vGdg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:message-id:mime-version:subject:from :to:cc; bh=ntIoASCRpCylyuUWo1BxH783z7pAgM+MQ2ilEpRkz7U=; b=LASAtvYRwBsf1uszcjKxjnawhJ5+SsRPssPupksENViEJ2rToxmbYhWaBbXKO4PTjd QQsWCm/AzM47zTfxWHI7D83G38EOxVxUsisV9Iim4OW8pVBOXqDYUGoH0ebNxNF3ThyT MjZYnm82rglcAt6p0KkD+HYkEBaZTThyS5D5cc1AcjzqRU/A/c8WaI+9xKVp5u8MtR22 OIgo7ttQ4lrBG1CWPgSyBa6CepdZDRuhPUzjshFHtTw+6N+k0WBl0p0H1Z/ZsP46qQO3 yTvvYZPIS5OjG3mCWwlg5yl5xqSS2qhWwPQ0orDfWX+TJOO+tOoY6I7sTY0N8dKMH5p2 1VnA== X-Gm-Message-State: AOAM531MMT68cdf/pNof4JEgyQAg4CBMwl5Xl5ft5fKn1WHEwje8IfJg foDk37c61DXtTodB7wk02kNYUNOf1CQfTOA= X-Google-Smtp-Source: ABdhPJwWGWyiO5qbE/66ge8P3yQHzvAv7rV3wY8ILg2lDtmrlx3YyCIIQ4uvpFAioq+ts76QFrU8AffluFkZn1o= Sender: "saravanak via sendgmr" X-Received: from saravanak.san.corp.google.com ([2620:15c:2d:3:7220:84ff:fe09:fedc]) (user=saravanak job=sendgmr) by 2002:a05:6902:6b0:: with SMTP id j16mr6982454ybt.169.1611127993976; Tue, 19 Jan 2021 23:33:13 -0800 (PST) Date: Tue, 19 Jan 2021 23:33:09 -0800 Message-Id: <20210120073310.427462-1-saravanak@google.com> Mime-Version: 1.0 X-Mailer: git-send-email 2.30.0.284.gd98b1dd5eaa7-goog Subject: [PATCH v2] of: property: Add fw_devlink support for "gpio" and "gpios" binding From: Saravana Kannan To: Rob Herring , Frank Rowand , Greg Kroah-Hartman , Saravana Kannan Cc: linux-tegra , Linus Walleij , Bartosz Golaszewski , Geert Uytterhoeven , Jon Hunter , kernel-team@android.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org To provide backward compatibility for boards that use deprecated DT bindings, we need to add fw_devlink support for "gpio" and "gpios". Cc: linux-tegra Cc: Linus Walleij Cc: Bartosz Golaszewski Cc: Greg Kroah-Hartman Cc: Geert Uytterhoeven Fixes: e590474768f1 ("driver core: Set fw_devlink=on by default") Tested-by: Jon Hunter Signed-off-by: Saravana Kannan --- Greg/Rob, I think it's better for this to go into driver-core-next because this fixed fw_devlink=on change that's queued for 5.12-rcX. -Saravana drivers/of/property.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/of/property.c b/drivers/of/property.c index 5f9eed79a8aa..0b256ce9d7d5 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -1271,6 +1271,24 @@ static struct device_node *parse_iommu_maps(struct device_node *np, return of_parse_phandle(np, prop_name, (index * 4) + 1); } +static struct device_node *parse_gpio_compat(struct device_node *np, + const char *prop_name, int index) +{ + struct of_phandle_args sup_args; + + if (strcmp(prop_name, "gpio") && strcmp(prop_name, "gpios")) + return NULL; + + if (of_find_property(np, "gpio-hog", NULL)) + return NULL; + + if (of_parse_phandle_with_args(np, prop_name, "#gpio-cells", index, + &sup_args)) + return NULL; + + return sup_args.np; +} + static const struct supplier_bindings of_supplier_bindings[] = { { .parse_prop = parse_clocks, }, { .parse_prop = parse_interconnects, }, @@ -1296,6 +1314,7 @@ static const struct supplier_bindings of_supplier_bindings[] = { { .parse_prop = parse_pinctrl6, }, { .parse_prop = parse_pinctrl7, }, { .parse_prop = parse_pinctrl8, }, + { .parse_prop = parse_gpio_compat, }, { .parse_prop = parse_regulators, }, { .parse_prop = parse_gpio, }, { .parse_prop = parse_gpios, },