From mboxrd@z Thu Jan 1 00:00:00 1970 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 A3C46C433F5 for ; Wed, 6 Apr 2022 01:26:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1841655AbiDFBZH (ORCPT ); Tue, 5 Apr 2022 21:25:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39718 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349492AbiDEJt5 (ORCPT ); Tue, 5 Apr 2022 05:49:57 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 32B5D21AC; Tue, 5 Apr 2022 02:47:26 -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 DCD49B81B76; Tue, 5 Apr 2022 09:47:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 38873C385A2; Tue, 5 Apr 2022 09:47:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1649152043; bh=letGfrqMJtS0jS6rXm/zbO8dXAw7rWWP4/AZLlOog+M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AmkKxCJxsjqoanyv8ZHHP84dAik3mFEnxqvak9l3vPhi2+CJSxJgdsE0bzfd+Xpd6 TBJ5ix9Qs3m4CT1qXFtP4sPJqTEJFWFv+fO/dwgA0B2kdIJK4ywDXAziWJDYgt3A/7 43kJ7dyvOjXJK3uaSVmYlSv8xP2NkSxd9wxIWZDQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Chen-Yu Tsai , AngeloGioacchino Del Regno , Linus Walleij , Sasha Levin Subject: [PATCH 5.15 635/913] pinctrl: mediatek: paris: Skip custom extra pin config dump for virtual GPIOs Date: Tue, 5 Apr 2022 09:28:17 +0200 Message-Id: <20220405070358.873888158@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220405070339.801210740@linuxfoundation.org> References: <20220405070339.801210740@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Chen-Yu Tsai [ Upstream commit 1763933d377ecb05454f8d20e3c8922480db2ac0 ] 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 Link: https://lore.kernel.org/r/20220308100956.2750295-7-wenst@chromium.org Signed-off-by: Linus Walleij Signed-off-by: Sasha Levin --- 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 2133964dfd59..02e2a259edd3 100644 --- a/drivers/pinctrl/mediatek/pinctrl-paris.c +++ b/drivers/pinctrl/mediatek/pinctrl-paris.c @@ -580,6 +580,9 @@ 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) -- 2.34.1