From nobody Tue Apr 7 19:49:33 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 AA034C32792 for ; Wed, 24 Aug 2022 19:24:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239834AbiHXTY1 (ORCPT ); Wed, 24 Aug 2022 15:24:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44342 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239605AbiHXTYW (ORCPT ); Wed, 24 Aug 2022 15:24:22 -0400 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EA4496CF40; Wed, 24 Aug 2022 12:24:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1661369057; x=1692905057; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=lGwWmzJrwJTpaXz+zD0EomUCGqQi3iai0u1JFi8zc3Q=; b=pV97T3HG/y+TD7WO+ULR6cowlA/6C188U/WV2j/t5O1s5EQJLwmjFYHr wR8dfDQQ+GSqK45aLbVX3dkYXdQ/k6DPEogccavYMjjqiKwMijMloZrj/ OkeW9KHpUsVvnbcD3Pxdl4grnlmTEnt09c84Xp7CBS+b/kCqrFpLaqxI3 edu+f2xOHNofmpytadx0GVViR77kx9ki1akxl31UeD0OCV/Mcye/fa8/g fag4D/KKnF43RVudrBPI4whsCFHlNFIMJpE22hr7N587SqWnmkeoDQ4V/ 410DSjm2KaLeISzcjMSih7sJU3AI+ZYXvERjwUKENYYOjqvXl0tIiv93U A==; X-IronPort-AV: E=Sophos;i="5.93,261,1654585200"; d="scan'208";a="173994307" Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa2.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 24 Aug 2022 12:24:16 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.12; Wed, 24 Aug 2022 12:24:16 -0700 Received: from soft-dev3-1.microsemi.net (10.10.115.15) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2507.12 via Frontend Transport; Wed, 24 Aug 2022 12:24:14 -0700 From: Horatiu Vultur To: CC: , , , , , , , , , , , Horatiu Vultur Subject: [PATCH net] net: phy: micrel: Make the GPIO to be non-exclusive Date: Wed, 24 Aug 2022 21:28:27 +0200 Message-ID: <20220824192827.437095-1-horatiu.vultur@microchip.com> X-Mailer: git-send-email 2.33.0 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" The same GPIO line can be shared by multiple phys for the coma mode pin. If that is the case then, all the other phys that share the same line will failed to be probed because the access to the gpio line is not non-exclusive. Fix this by making access to the gpio line to be nonexclusive using flag GPIOD_FLAGS_BIT_NONEXCLUSIVE. This allows all the other PHYs to be probed. Fixes: 738871b09250ee ("net: phy: micrel: add coma mode GPIO") Signed-off-by: Horatiu Vultur --- drivers/net/phy/micrel.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c index e78d0bf69bc3..ea72ff64ad33 100644 --- a/drivers/net/phy/micrel.c +++ b/drivers/net/phy/micrel.c @@ -2878,7 +2878,8 @@ static int lan8814_release_coma_mode(struct phy_devic= e *phydev) struct gpio_desc *gpiod; =20 gpiod =3D devm_gpiod_get_optional(&phydev->mdio.dev, "coma-mode", - GPIOD_OUT_HIGH_OPEN_DRAIN); + GPIOD_OUT_HIGH_OPEN_DRAIN | + GPIOD_FLAGS_BIT_NONEXCLUSIVE); if (IS_ERR(gpiod)) return PTR_ERR(gpiod); =20 --=20 2.33.0