From nobody Sat Feb 7 10:07:46 2026 Received: from mail-yb1-f201.google.com (mail-yb1-f201.google.com [209.85.219.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4545A9460 for ; Wed, 7 Feb 2024 01:18:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707268695; cv=none; b=ssuq6T5oNSDjgU9gCPqWf9Wx2oiTFC554pBnil4mMonUrJ5sSU6fW6hIxHE2DenbnPzZMyCNRatYYqVcPLocfhm9nFN89A68A592NYVp70XB4LsIjnMhC8D6qWYksj6vUz3Jjq+YVxS4cMS0sq2r5OpOQEgfyAr3QlDGfzaubyM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707268695; c=relaxed/simple; bh=/sB8l6KWYH6DGCMNn36V9/w/rBzTre/Ew1T/Fov0yTA=; h=Date:In-Reply-To:Message-Id:Mime-Version:References:Subject:From: To:Cc:Content-Type; b=EiaWZvF+HFjUxMecxdBsnsryfZnvu98sCG5DwMF2Oh6rxA8YuDAqmf3ww1e02CdGXp9EFaLke8WaUcIlswNuk9hdThfS823c+NmCGePWIkE7JJo/ST/Pll/64b6LJ+9Cj0Wcwy3rL/oRppZxVBsRR898YQYdSe6bSi77NLdcLfo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--saravanak.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=WJK4VpMx; arc=none smtp.client-ip=209.85.219.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--saravanak.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="WJK4VpMx" Received: by mail-yb1-f201.google.com with SMTP id 3f1490d57ef6-dc6ade10cb8so313389276.0 for ; Tue, 06 Feb 2024 17:18:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1707268693; x=1707873493; darn=vger.kernel.org; h=cc:to:from:subject:references:mime-version:message-id:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=nuaW4jYZxVUVmSijc5joqXItCJVV2wzRbkaJo6WoHUs=; b=WJK4VpMxU4QTcyBxl96JWvvQu4iGzy7oe9i0fqN8z80g7jni06UaAYhxEK4F/bK0Rh oUB16eYgKY+PoanKIZxEsAsi/1WErAXefawXyPBDgmy8PLiEcginrXZtCv9PaeOIrP24 fpW8MOPu1UKXXksZNPyEnNedyeroPT+iJADCnIuuEpO5ly8CngPdsGUJJcSgrhnccLrX iyOtB3LVc/LrA+UFtEpctQO++UVqRTy3SQjmDmzkBLh8ibzZ78FJMZNSYcKNsM11gL4J bgxTOZHEYE9eTtqZhORpUhxa4ByA70fySxIhQxNo5xcYJq90binsOAlGVllpyrEnjhw4 Gibg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707268693; x=1707873493; h=cc:to:from:subject:references:mime-version:message-id:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=nuaW4jYZxVUVmSijc5joqXItCJVV2wzRbkaJo6WoHUs=; b=w1PFRYINyv0AHYcJMlQOPM+wZN58HzO4Yz8SiZ5PrfKQ/aA/pE6DTVd04lSY8RFddA LiWS0wUKM4o1+dJFb5dc+uCisJP8O03Y2xnT9fdQcj5jMeG3+ohjos/ly2nYaOXkf3Pc UMthx8IWu1/Kb1JDOzwc6YIpPdiTHEouyco0f0gOX6/0fYLxFh/qum2zsX+x2SwzZin9 qVWjmFFfpZ/pzgrjALc1C8t19/k93cpYutb9E0KWjxivArttoFYAXUCOK5Kqg0/soDpA 2biCTkOn9qGvZvCSHSFaY3AkK01iWkjTlQJSxmCfydRXxk8BhXoRNUjDTymhr4IBkrbw XN3Q== X-Gm-Message-State: AOJu0YwYCiZS6s5Tbb/OX7sgR/sVWl/oD+/C8k6FjRQm7k5Kc292XsOx c21nPaXTdCkhZ0hinR1YNa1N+YnAcm56admWiHNN2v9xu50iTFG/3d7d6xGmqKqaRWnsU1Jgsa0 1bUWOMQMZOj9lxw== X-Google-Smtp-Source: AGHT+IEwboo8+/tjNQ/s5pGJKHWDjeFlgB70RN5OuTbjiwqwhnO+MKLTbJv+/GxEoj3g4xpPxYrf1MNH+TesvQ0= X-Received: from saravanak.san.corp.google.com ([2620:15c:2d:3:dc84:66b8:120:935a]) (user=saravanak job=sendgmr) by 2002:a25:ce0a:0:b0:dc7:31a4:23f6 with SMTP id x10-20020a25ce0a000000b00dc731a423f6mr73359ybe.2.1707268693254; Tue, 06 Feb 2024 17:18:13 -0800 (PST) Date: Tue, 6 Feb 2024 17:18:00 -0800 In-Reply-To: <20240207011803.2637531-1-saravanak@google.com> Message-Id: <20240207011803.2637531-2-saravanak@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240207011803.2637531-1-saravanak@google.com> X-Mailer: git-send-email 2.43.0.594.gd9cf4e227d-goog Subject: [PATCH v2 1/3] of: property: Improve finding the consumer of a remote-endpoint property From: Saravana Kannan To: Rob Herring , Frank Rowand , Greg Kroah-Hartman , Saravana Kannan Cc: Xu Yang , kernel-team@android.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" We have a more accurate function to find the right consumer of a remote-endpoint property instead of searching for a parent with compatible string property. So, use that instead. While at it, make the code to find the consumer a bit more flexible and based on the property being parsed. Fixes: f7514a663016 ("of: property: fw_devlink: Add support for remote-endp= oint") Signed-off-by: Saravana Kannan --- drivers/of/property.c | 47 +++++++++---------------------------------- 1 file changed, 10 insertions(+), 37 deletions(-) diff --git a/drivers/of/property.c b/drivers/of/property.c index 641a40cf5cf3..da70aaa62ca3 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -1063,36 +1063,6 @@ of_fwnode_device_get_match_data(const struct fwnode_= handle *fwnode, return of_device_get_match_data(dev); } =20 -static struct device_node *of_get_compat_node(struct device_node *np) -{ - of_node_get(np); - - while (np) { - if (!of_device_is_available(np)) { - of_node_put(np); - np =3D NULL; - } - - if (of_property_present(np, "compatible")) - break; - - np =3D of_get_next_parent(np); - } - - return np; -} - -static struct device_node *of_get_compat_node_parent(struct device_node *n= p) -{ - struct device_node *parent, *node; - - parent =3D of_get_parent(np); - node =3D of_get_compat_node(parent); - of_node_put(parent); - - return node; -} - static void of_link_to_phandle(struct device_node *con_np, struct device_node *sup_np) { @@ -1222,10 +1192,10 @@ static struct device_node *parse_##fname(struct dev= ice_node *np, \ * parse_prop.prop_name: Name of property holding a phandle value * parse_prop.index: For properties holding a list of phandles, this is t= he * index into the list + * @get_con_dev: If the consumer node containing the property is never con= verted + * to a struct device, implement this ops so fw_devlink can use it + * to find the true consumer. * @optional: Describes whether a supplier is mandatory or not - * @node_not_dev: The consumer node containing the property is never conve= rted - * to a struct device. Instead, parse ancestor nodes for the - * compatible property to find a node corresponding to a device. * * Returns: * parse_prop() return values are @@ -1236,8 +1206,8 @@ static struct device_node *parse_##fname(struct devic= e_node *np, \ struct supplier_bindings { struct device_node *(*parse_prop)(struct device_node *np, const char *prop_name, int index); + struct device_node *(*get_con_dev)(struct device_node *np); bool optional; - bool node_not_dev; }; =20 DEFINE_SIMPLE_PROP(clocks, "clocks", "#clock-cells") @@ -1352,7 +1322,10 @@ static const struct supplier_bindings of_supplier_bi= ndings[] =3D { { .parse_prop =3D parse_pinctrl6, }, { .parse_prop =3D parse_pinctrl7, }, { .parse_prop =3D parse_pinctrl8, }, - { .parse_prop =3D parse_remote_endpoint, .node_not_dev =3D true, }, + { + .parse_prop =3D parse_remote_endpoint, + .get_con_dev =3D of_graph_get_port_parent, + }, { .parse_prop =3D parse_pwms, }, { .parse_prop =3D parse_resets, }, { .parse_prop =3D parse_leds, }, @@ -1403,8 +1376,8 @@ static int of_link_property(struct device_node *con_n= p, const char *prop_name) while ((phandle =3D s->parse_prop(con_np, prop_name, i))) { struct device_node *con_dev_np; =20 - con_dev_np =3D s->node_not_dev - ? of_get_compat_node_parent(con_np) + con_dev_np =3D s->get_con_dev + ? s->get_con_dev(con_np) : of_node_get(con_np); matched =3D true; i++; --=20 2.43.0.594.gd9cf4e227d-goog From nobody Sat Feb 7 10:07:46 2026 Received: from mail-yw1-f201.google.com (mail-yw1-f201.google.com [209.85.128.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EBFB8DDB3 for ; Wed, 7 Feb 2024 01:18:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707268698; cv=none; b=GOuR19FLZbovcBcZY16wOaJvJzw4THwil1R3ShCebIDsVc9BIIo0OaOrZ1v2oyUQbCNwovC47Tyy9r3GkqGdTXUvmDjUsiqMhD5LCMcgUOvMUf1bZBJEfk74jXDQYV5UPLhXp1xlEX5fooFqyovsnm9tsPEXygOEgyY9VFQsYhA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707268698; c=relaxed/simple; bh=T62blaTiqzQLizGlfVWivOeIOmYziapjvmFfizRpV/g=; h=Date:In-Reply-To:Message-Id:Mime-Version:References:Subject:From: To:Cc:Content-Type; b=jht1oxlFbu18aHiCoWsWi/xnrYAt4Vq62ixapMCctTZLZjnM7A3P3R/miDsb9MbgV2p3GKW80rB5EfLy8HBhyEUFvzT31yL99AmMWpnio0kl6OI8p9JagimqarzU2pH+CtTZtzK/mdpFPT3HeLFUhougIuYq2kaTC8jhNzWUa64= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--saravanak.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=XlxjDbVI; arc=none smtp.client-ip=209.85.128.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--saravanak.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="XlxjDbVI" Received: by mail-yw1-f201.google.com with SMTP id 00721157ae682-6041dbb7a78so2167707b3.0 for ; Tue, 06 Feb 2024 17:18:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1707268696; x=1707873496; darn=vger.kernel.org; h=cc:to:from:subject:references:mime-version:message-id:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=pzwZNLSU6r/5TPCVrrLL62lmP2jEiRWNyfq6bcL8Mo0=; b=XlxjDbVIImD32kab5Kwo4YlVC7p8+E8aqJhRxHw3ADM7ebhWgRPO248dnC29vQAOaG 8fs2LK5ke80mt3oM3xQ7xaHCMTPvghS7nxPe7wS9M6vPWvfIP9wgqDxI04Pj2nxE2cV0 TWqzX4gBKVZ7cVirmgAZGQVCNDU/GdonLXs8DZ3z39gyU/9X/lo72EYCOvCoOsnRUUKi pH/LJfuVjZSoU6ounkkuxr2ptpwITbHFlTk2hlfc+Et5z0jLiJRvhIF9FHFqyME4N1Hk gPTHPItW5S3AMDYmuA0Q/mwPUwI8zJkX6tLZjWFQS3XUtMQzYhYiNhQaUQqF8W0pa0cl TBTw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707268696; x=1707873496; h=cc:to:from:subject:references:mime-version:message-id:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=pzwZNLSU6r/5TPCVrrLL62lmP2jEiRWNyfq6bcL8Mo0=; b=lDNgWEpV+qwITySQ/wes1wv7Ncpisin73+4ReGvHi0XOKJ74Ml2EDjxzoUN7/TzY0o viBL6sKHJ6g4LHHqRjTJ2wuS19b22bD8WYk7SistcNy35EZlOQd1LM6QPYT9/9UKjDTS 5tuRAfwQuBwWhnKbR4lQ0NxdafJ8IxrqMEy15wv2sz2+Ss+irRVOOcN7anK98T0C9ArM KhK40kJHVgrQIRIZjY3uBwZJ9vnakRepTk9CYui2aHPMBD6ynA83eBbuzs8HZnK1q6o+ ON24jcv3aYV7nvTgIaYBZh4xt+1SuL2UeI5dgiPWCIahoRA4jSSTQJsu7CCsn1QJUZ2q fgSA== X-Gm-Message-State: AOJu0YypHRFFQTBGuOQwF0avdCZZAEVvjotahzMsmU7sG5m86gUta6yi rNUSmJxnYS7M1m7LEYbdYCU+qoWoug5Fup2/8rWygxOCbkJPLOgBdwWN31UpFndMfWyriQdwIiS W1itVVOxmaL3J/g== X-Google-Smtp-Source: AGHT+IG3z+4r/hvV7+1dLnMRbxeMCicoD6AFIsr/18VUeXwbdI/EtTCFNbIV8rOJfhHGjy6+ovOrP/JrgoY+n/Q= X-Received: from saravanak.san.corp.google.com ([2620:15c:2d:3:dc84:66b8:120:935a]) (user=saravanak job=sendgmr) by 2002:a81:9b82:0:b0:5fb:7e5b:b87f with SMTP id s124-20020a819b82000000b005fb7e5bb87fmr677991ywg.1.1707268695967; Tue, 06 Feb 2024 17:18:15 -0800 (PST) Date: Tue, 6 Feb 2024 17:18:01 -0800 In-Reply-To: <20240207011803.2637531-1-saravanak@google.com> Message-Id: <20240207011803.2637531-3-saravanak@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240207011803.2637531-1-saravanak@google.com> X-Mailer: git-send-email 2.43.0.594.gd9cf4e227d-goog Subject: [PATCH v2 2/3] of: property: Improve finding the supplier of a remote-endpoint property From: Saravana Kannan To: Rob Herring , Frank Rowand , Greg Kroah-Hartman , Saravana Kannan Cc: Xu Yang , kernel-team@android.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" After commit 4a032827daa8 ("of: property: Simplify of_link_to_phandle()"), remote-endpoint properties created a fwnode link from the consumer device to the supplier endpoint. This is a tiny bit inefficient (not buggy) when trying to create device links or detecting cycles. So, improve this the same way we improved finding the consumer of a remote-endpoint property. Fixes: 4a032827daa8 ("of: property: Simplify of_link_to_phandle()") Signed-off-by: Saravana Kannan --- drivers/of/property.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/of/property.c b/drivers/of/property.c index da70aaa62ca3..7bb2d8e290de 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -1232,7 +1232,6 @@ DEFINE_SIMPLE_PROP(pinctrl5, "pinctrl-5", NULL) DEFINE_SIMPLE_PROP(pinctrl6, "pinctrl-6", NULL) DEFINE_SIMPLE_PROP(pinctrl7, "pinctrl-7", NULL) DEFINE_SIMPLE_PROP(pinctrl8, "pinctrl-8", NULL) -DEFINE_SIMPLE_PROP(remote_endpoint, "remote-endpoint", NULL) DEFINE_SIMPLE_PROP(pwms, "pwms", "#pwm-cells") DEFINE_SIMPLE_PROP(resets, "resets", "#reset-cells") DEFINE_SIMPLE_PROP(leds, "leds", NULL) @@ -1298,6 +1297,17 @@ static struct device_node *parse_interrupts(struct d= evice_node *np, return of_irq_parse_one(np, index, &sup_args) ? 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Tue, 06 Feb 2024 17:18:18 -0800 (PST) Date: Tue, 6 Feb 2024 17:18:02 -0800 In-Reply-To: <20240207011803.2637531-1-saravanak@google.com> Message-Id: <20240207011803.2637531-4-saravanak@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240207011803.2637531-1-saravanak@google.com> X-Mailer: git-send-email 2.43.0.594.gd9cf4e227d-goog Subject: [PATCH v2 3/3] of: property: Add in-ports/out-ports support to of_graph_get_port_parent() From: Saravana Kannan To: Rob Herring , Frank Rowand , Greg Kroah-Hartman , Saravana Kannan Cc: Xu Yang , kernel-team@android.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Similar to the existing "ports" node name, coresight device tree bindings have added "in-ports" and "out-ports" as standard node names for a collection of ports. Add support for these name to of_graph_get_port_parent() so that remote-endpoint parsing can find the correct parent node for these coresight ports too. Signed-off-by: Saravana Kannan --- drivers/of/property.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/of/property.c b/drivers/of/property.c index 7bb2d8e290de..39a3ee1dfb58 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -763,7 +763,9 @@ struct device_node *of_graph_get_port_parent(struct dev= ice_node *node) /* Walk 3 levels up only if there is 'ports' node. */ for (depth =3D 3; depth && node; depth--) { node =3D of_get_next_parent(node); - if (depth =3D=3D 2 && !of_node_name_eq(node, "ports")) + if (depth =3D=3D 2 && !of_node_name_eq(node, "ports") && + !of_node_name_eq(node, "in-ports") && + !of_node_name_eq(node, "out-ports")) break; } return node; --=20 2.43.0.594.gd9cf4e227d-goog