From nobody Mon Feb 9 19:05:15 2026 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 88E4BEB64DA for ; Thu, 20 Jul 2023 13:26:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231899AbjGTN0j (ORCPT ); Thu, 20 Jul 2023 09:26:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45022 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231847AbjGTN0Z (ORCPT ); Thu, 20 Jul 2023 09:26:25 -0400 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9943E1FD7 for ; Thu, 20 Jul 2023 06:26:18 -0700 (PDT) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qMTfL-0007aG-QF; Thu, 20 Jul 2023 15:26:00 +0200 Received: from [2a0a:edc0:0:1101:1d::ac] (helo=dude04.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1qMTfJ-000qc3-Vg; Thu, 20 Jul 2023 15:25:57 +0200 Received: from ore by dude04.red.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1qMTfJ-000Ezj-12; Thu, 20 Jul 2023 15:25:57 +0200 From: Oleksij Rempel To: "David S. Miller" , Andrew Lunn , Eric Dumazet , Florian Fainelli , Jakub Kicinski , Paolo Abeni , Vladimir Oltean , Woojung Huh , Arun Ramadoss , Conor Dooley , Krzysztof Kozlowski , Rob Herring Cc: Oleksij Rempel , kernel@pengutronix.de, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, UNGLinuxDriver@microchip.com, "Russell King (Oracle)" , devicetree@vger.kernel.org Subject: [PATCH net-next v1 5/6] net: dsa: microchip: use wakeup-source DT property to enable PME output Date: Thu, 20 Jul 2023 15:25:55 +0200 Message-Id: <20230720132556.57562-6-o.rempel@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230720132556.57562-1-o.rempel@pengutronix.de> References: <20230720132556.57562-1-o.rempel@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ore@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" KSZ switches with WoL support signals wake event over PME pin. If this pin is attached to some external PMIC or System Controller can't be described as GPIO, the only way to describe it in the devicetree is to use wakeup-source property. So, add support for this property and enable PME switch output if this property is present. Signed-off-by: Oleksij Rempel --- drivers/net/dsa/microchip/ksz9477.c | 3 +++ drivers/net/dsa/microchip/ksz_common.c | 3 +++ drivers/net/dsa/microchip/ksz_common.h | 1 + 3 files changed, 7 insertions(+) diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchi= p/ksz9477.c index 9a531db79f832..1a3d7ae5970e2 100644 --- a/drivers/net/dsa/microchip/ksz9477.c +++ b/drivers/net/dsa/microchip/ksz9477.c @@ -1208,6 +1208,9 @@ int ksz9477_setup(struct dsa_switch *ds) return ret; } =20 + if (dev->wakeup_source) + ksz_write8(dev, REG_SW_PME_CTRL, PME_ENABLE); + return 0; } =20 diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/micro= chip/ksz_common.c index eb67bb520934d..354cc5333675b 100644 --- a/drivers/net/dsa/microchip/ksz_common.c +++ b/drivers/net/dsa/microchip/ksz_common.c @@ -3717,6 +3717,9 @@ int ksz_switch_register(struct ksz_device *dev) dev_err(dev->dev, "inconsistent synclko settings\n"); return -EINVAL; } + + dev->wakeup_source =3D of_property_read_bool(dev->dev->of_node, + "wakeup-source"); } =20 ret =3D dsa_register_switch(dev->ds); diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/micro= chip/ksz_common.h index 4ec53cf4b30be..b67bb9b4631ea 100644 --- a/drivers/net/dsa/microchip/ksz_common.h +++ b/drivers/net/dsa/microchip/ksz_common.h @@ -158,6 +158,7 @@ struct ksz_device { phy_interface_t compat_interface; bool synclko_125; bool synclko_disable; + bool wakeup_source; =20 struct vlan_table *vlan_cache; =20 --=20 2.39.2