From nobody Fri Dec 19 18:53:12 2025 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 AF7C5C07E9D for ; Mon, 26 Sep 2022 11:19:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235107AbiIZLTg (ORCPT ); Mon, 26 Sep 2022 07:19:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35318 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237703AbiIZLRX (ORCPT ); Mon, 26 Sep 2022 07:17:23 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DCD596525E; Mon, 26 Sep 2022 03:38:03 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 978B9B80915; Mon, 26 Sep 2022 10:36:37 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id AFA2BC433C1; Mon, 26 Sep 2022 10:36:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1664188596; bh=tMM/orUGFSjjL4eQY+VZYZBWlo9qcSJzCaONo3wf00w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rItiTHn8oR31MDs+Av8CV6J5ctDlVCSDYjNhTTCOm/gPgT2EqXy6sbVdbeH1UG57n Xu72hV3ZPXltMYxx8w0osqjKo3sN50B6cpNBEUkkcxtnknGcmWIBZ22AtT/lnpwiRN emEzBcA3oA3o9X7w1r8I9UNbRg26XhKceW7B5ejA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Brian Norris , Douglas Anderson , Heiko Stuebner , Sasha Levin Subject: [PATCH 5.15 060/148] arm64: dts: rockchip: Pull up wlan wake# on Gru-Bob Date: Mon, 26 Sep 2022 12:11:34 +0200 Message-Id: <20220926100758.284961364@linuxfoundation.org> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20220926100756.074519146@linuxfoundation.org> References: <20220926100756.074519146@linuxfoundation.org> User-Agent: quilt/0.67 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" From: Brian Norris [ Upstream commit e5467359a725de90b6b8d0dd865500f6373828ca ] The Gru-Bob board does not have a pull-up resistor on its WLAN_HOST_WAKE# pin, but Kevin does. The production/vendor kernel specified the pin configuration correctly as a pull-up, but this didn't get ported correctly to upstream. This means Bob's WLAN_HOST_WAKE# pin is floating, causing inconsistent wakeup behavior. Note that bt_host_wake_l has a similar dynamic, but apparently the upstream choice was to redundantly configure both internal and external pull-up on Kevin (see the "Kevin has an external pull up" comment in rk3399-gru.dtsi). This doesn't cause any functional problem, although it's perhaps wasteful. Fixes: 8559bbeeb849 ("arm64: dts: rockchip: add Google Bob") Signed-off-by: Brian Norris Reviewed-by: Douglas Anderson Link: https://lore.kernel.org/r/20220822164453.1.I75c57b48b0873766ec993bdfb= 7bc1e63da5a1637@changeid Signed-off-by: Heiko Stuebner Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/rockchip/rk3399-gru-bob.dts | 5 +++++ arch/arm64/boot/dts/rockchip/rk3399-gru-chromebook.dtsi | 1 + 2 files changed, 6 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3399-gru-bob.dts b/arch/arm64/b= oot/dts/rockchip/rk3399-gru-bob.dts index e6c1c94c8d69..07737b65d7a3 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-gru-bob.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-gru-bob.dts @@ -87,3 +87,8 @@ h1_int_od_l: h1-int-od-l { }; }; }; + +&wlan_host_wake_l { + /* Kevin has an external pull up, but Bob does not. */ + rockchip,pins =3D <0 RK_PB0 RK_FUNC_GPIO &pcfg_pull_up>; +}; diff --git a/arch/arm64/boot/dts/rockchip/rk3399-gru-chromebook.dtsi b/arch= /arm64/boot/dts/rockchip/rk3399-gru-chromebook.dtsi index 1384dabbdf40..0d8458d55626 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-gru-chromebook.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399-gru-chromebook.dtsi @@ -395,6 +395,7 @@ wifi_perst_l: wifi-perst-l { }; =20 wlan_host_wake_l: wlan-host-wake-l { + /* Kevin has an external pull up, but Bob does not */ rockchip,pins =3D <0 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>; }; }; --=20 2.35.1