From patchwork Wed Sep 9 16:04:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Neil Armstrong X-Patchwork-Id: 11765837 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D17E7618 for ; Wed, 9 Sep 2020 16:53:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B54E62166E for ; Wed, 9 Sep 2020 16:53:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=baylibre-com.20150623.gappssmtp.com header.i=@baylibre-com.20150623.gappssmtp.com header.b="VwOSKziV" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730790AbgIIQxX (ORCPT ); Wed, 9 Sep 2020 12:53:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52618 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730907AbgIIQEr (ORCPT ); Wed, 9 Sep 2020 12:04:47 -0400 Received: from mail-wm1-x344.google.com (mail-wm1-x344.google.com [IPv6:2a00:1450:4864:20::344]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C14BBC061797 for ; Wed, 9 Sep 2020 09:04:18 -0700 (PDT) Received: by mail-wm1-x344.google.com with SMTP id x23so2814453wmi.3 for ; Wed, 09 Sep 2020 09:04:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=SiyqCx4YnZ+Or6eOmMKNfQ0j9dSdplwdoBw+wNl6q58=; b=VwOSKziV6KxZBIx/wGbNdqd2Y86noYBluv4unymCGwu3te8jbuKa3ccpWYMnch++2a 7z+xHoRGaFu8JgUBYDtf8zxYfS3iUNGtflX4ZqSZ7xTJGZbR+E8PjtrDZvfN/JL060fc mNaVnsam1wEaLDJyP/xodQ6M17rSwtotUeNLEjVZ6FL7ww+0ZolDJ3MrafIRHvZqUTue fKMsHIzQdcuASojK+c/frFsDrH2uyxSoQZtb7hmfbw+gKH+uQBVx6UZAlZwGUJtEtIen x0Gm785684liWBPGC3wrTWHJJYu1HTuEdpWXl3w5Z43oHdPMvCDyPMYA5pjhmy56RQ// FKEg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=SiyqCx4YnZ+Or6eOmMKNfQ0j9dSdplwdoBw+wNl6q58=; b=L+oYpE/fDYHBCZYKhW4oicyZmveNg5egGYrqlLBnNybS1b8iu57hefZOiz1FgYkJSu G+/Av+y0xMdQ/P9mgfgsbXmMs4gNXgcK1KPWlZQxzgXK/fc4cts+mYlgE/Wu7UrwGg1p XVGFA7bLMeiy1iwDr4BrzxvsS/ZgUozBmaVR5ubyORs2GVKWbkE29HcIunruJqYanU8J Gh3UndyyLOXThE62KtFmY8nKUyaNAt3xWWkwRXIbRXIN8ec+6wCzkGbyV2x/TjZHvw1R RMA7hDBE4c1b+ht0eHGHzoadFV+K/L4K6JbxF3SvrWk4Bhu5v4p0ID2wcMO4cgh8YSpa bpIg== X-Gm-Message-State: AOAM5307GcJl2gkehJO7WIYH3bd/bJovONdySe1eTXjC+2MC79w12kaS 9ALpKyE9AP0JnqZcKaGr9NI6fw== X-Google-Smtp-Source: ABdhPJxA0NvRTmioXzuZmiTka9YmzVYgx59EJqwb30lAKBiKzxc9Xiv5IR6ANym/gnZ6+pjLTpazaw== X-Received: by 2002:a1c:7911:: with SMTP id l17mr4148448wme.179.1599667457194; Wed, 09 Sep 2020 09:04:17 -0700 (PDT) Received: from bender.baylibre.local ([2a01:e35:2ec0:82b0:5405:9623:e2f1:b2ac]) by smtp.gmail.com with ESMTPSA id y6sm4850700wrn.41.2020.09.09.09.04.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Sep 2020 09:04:16 -0700 (PDT) From: Neil Armstrong To: khilman@baylibre.com, kishon@ti.com, martin.blumenstingl@googlemail.com Cc: linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Neil Armstrong , linux-usb@vger.kernel.org Subject: [PATCH 1/5] phy: amlogic: phy-meson-gxl-usb2: keep ID pull-up even in Host mode Date: Wed, 9 Sep 2020 18:04:05 +0200 Message-Id: <20200909160409.8678-2-narmstrong@baylibre.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20200909160409.8678-1-narmstrong@baylibre.com> References: <20200909160409.8678-1-narmstrong@baylibre.com> MIME-Version: 1.0 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org In order to keep OTG ID detection even when in Host mode, the ID line of the PHY (if the current phy is an OTG one) pull-up should be kept enable in both modes. This fixes OTG switch on GXL, GXM & AXG platforms, otherwise once switched to Host, the ID detection doesn't work anymore to switch back to Device. Signed-off-by: Neil Armstrong Reviewed-by: Martin Blumenstingl --- drivers/phy/amlogic/phy-meson-gxl-usb2.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/phy/amlogic/phy-meson-gxl-usb2.c b/drivers/phy/amlogic/phy-meson-gxl-usb2.c index 43ec9bf24abf..6e862ea60d8f 100644 --- a/drivers/phy/amlogic/phy-meson-gxl-usb2.c +++ b/drivers/phy/amlogic/phy-meson-gxl-usb2.c @@ -158,7 +158,8 @@ static int phy_meson_gxl_usb2_set_mode(struct phy *phy, U2P_R0_DM_PULLDOWN); regmap_update_bits(priv->regmap, U2P_R0, U2P_R0_DP_PULLDOWN, U2P_R0_DP_PULLDOWN); - regmap_update_bits(priv->regmap, U2P_R0, U2P_R0_ID_PULLUP, 0); + regmap_update_bits(priv->regmap, U2P_R0, U2P_R0_ID_PULLUP, + U2P_R0_ID_PULLUP); break; case PHY_MODE_USB_DEVICE: