From patchwork Tue Mar 8 10:09:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen-Yu Tsai X-Patchwork-Id: 549525 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 5F93CC433EF for ; Tue, 8 Mar 2022 10:10:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345681AbiCHKLV (ORCPT ); Tue, 8 Mar 2022 05:11:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41022 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345700AbiCHKLO (ORCPT ); Tue, 8 Mar 2022 05:11:14 -0500 Received: from mail-pj1-x102e.google.com (mail-pj1-x102e.google.com [IPv6:2607:f8b0:4864:20::102e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5387342A0C for ; Tue, 8 Mar 2022 02:10:17 -0800 (PST) Received: by mail-pj1-x102e.google.com with SMTP id cx5so16724633pjb.1 for ; Tue, 08 Mar 2022 02:10:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=YCEYLzINbSJ27Mxc1gQH0RSj42l80KVWvId+vHnO050=; b=VFlI3NcvOJtijZK9dnSyiiARFam7LJ8qmOTLKNc6BwqUaKaUlKU4+8f3icJASzdiix OthB+gk44a6lieASchFK+lLJcJ+pUaxnkcomxmj4/ef/plXlIWS42RAYtXU1/9+aRBkL h4lX3waAzusF3Hgh0IGsk99Q5//h4ggK0BCFc= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=YCEYLzINbSJ27Mxc1gQH0RSj42l80KVWvId+vHnO050=; b=gsaF8eatKYQiCAiuM415Fm0s2nyxAnVbYFdLMR1+vmYC7Ph9UN/THfcnb6sOHEwSm3 PeTGrwHrKGHIPAZTaDWQJofzMgsTwbipoNOCG+3+ImcONUUm4hF/hCCl+GYreI3jOvvJ aoAIN7BYZmc71dMggMVyO9XeTSxTYXsRbH8F0M1QY9XemT9bUzRwInXDO7rqiVDsLCUo E3XKcKodQk+MqhAQZO7MfF6vNiS5SLzOh6m5niV3DKxEHkRMUe5aCgHcVeehomfpWHny Tks/aN1OYnfZg93ZgEhCsm4C7bp7CyALQQ78yzvzjfAy9vouvPIPMw2+2wVPI4MUfu8A JnPA== X-Gm-Message-State: AOAM531qjJwESKcRC2vjqDWCnERZUuzL9alzwCw6wpM20GOgaxZf9JH3 /1Tley2BuHmsa4l0gvpZgVLV8g== X-Google-Smtp-Source: ABdhPJxvlMwg053TxzUU1yh1e9ywYI4FTa148KhAT6lQrsDtI61chzmA/3TvSGQDlNZ1lmoCT8ZRig== X-Received: by 2002:a17:902:ef4d:b0:14f:e82b:25fd with SMTP id e13-20020a170902ef4d00b0014fe82b25fdmr16531295plx.80.1646734216854; Tue, 08 Mar 2022 02:10:16 -0800 (PST) Received: from wenstp920.tpe.corp.google.com ([2401:fa00:1:10:73f8:5e3f:6894:8f44]) by smtp.gmail.com with ESMTPSA id k19-20020a056a00135300b004f734327960sm1707553pfu.106.2022.03.08.02.10.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Mar 2022 02:10:16 -0800 (PST) From: Chen-Yu Tsai To: Sean Wang , Linus Walleij , Matthias Brugger Cc: Chen-Yu Tsai , linux-mediatek@lists.infradead.org, linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, AngeloGioacchino Del Regno Subject: [PATCH v2 06/11] pinctrl: mediatek: paris: Skip custom extra pin config dump for virtual GPIOs Date: Tue, 8 Mar 2022 18:09:51 +0800 Message-Id: <20220308100956.2750295-7-wenst@chromium.org> X-Mailer: git-send-email 2.35.1.616.g0bdcbb4464-goog In-Reply-To: <20220308100956.2750295-1-wenst@chromium.org> References: <20220308100956.2750295-1-wenst@chromium.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Virtual GPIOs do not have any hardware state associated with them. Any attempt to read back hardware state for these pins result in error codes. Skip dumping extra pin config information for these virtual GPIOs. Fixes: 184d8e13f9b1 ("pinctrl: mediatek: Add support for pin configuration dump via debugfs.") Signed-off-by: Chen-Yu Tsai Reviewed-by: AngeloGioacchino Del Regno --- drivers/pinctrl/mediatek/pinctrl-paris.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/pinctrl/mediatek/pinctrl-paris.c b/drivers/pinctrl/mediatek/pinctrl-paris.c index 38a00a906daf..39487e0c2726 100644 --- a/drivers/pinctrl/mediatek/pinctrl-paris.c +++ b/drivers/pinctrl/mediatek/pinctrl-paris.c @@ -581,6 +581,9 @@ ssize_t mtk_pctrl_show_one_pin(struct mtk_pinctrl *hw, if (gpio >= hw->soc->npins) return -EINVAL; + if (mtk_is_virt_gpio(hw, gpio)) + return -EINVAL; + desc = (const struct mtk_pin_desc *)&hw->soc->pins[gpio]; pinmux = mtk_pctrl_get_pinmux(hw, gpio); if (pinmux >= hw->soc->nfuncs)