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 X-Spam-Level: X-Spam-Status: No, score=-9.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_2 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7C63CC433DB for ; Wed, 27 Jan 2021 04:45:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 318A82070C for ; Wed, 27 Jan 2021 04:45:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239511AbhA0EpA (ORCPT ); Tue, 26 Jan 2021 23:45:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44578 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S317762AbhA0BQi (ORCPT ); Tue, 26 Jan 2021 20:16:38 -0500 Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com [IPv6:2607:f8b0:4864:20::1035]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A5E50C061574; Tue, 26 Jan 2021 17:15:56 -0800 (PST) Received: by mail-pj1-x1035.google.com with SMTP id l18so304649pji.3; Tue, 26 Jan 2021 17:15:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:in-reply-to:references :organization:mime-version:content-transfer-encoding; bh=KJ+yQ5bWaZ2enwzjx+4GHtaZjxc83d9TFtN5y4k2HgI=; b=i/yuys92Y5AzJRo1OemPBFbioTJmSuQ33639+tZ6prHwvFx51LOyZrVSO1E33i+8wh dEJHgrQ8sxZTiELoPu/HB5idN1Xr1ngd23fU7Q5qWKVITJs29r5uNEgiLJ+UF3eew7oh Te/siDN/xEQeEQxDBwRHsCc0asJLTkm6YLdAmJzmN6G5BtxF5PPok0bVMoyLAZ3KdEOI Iq/KGqEfFxJ8EHCQGitG/cuxLRRvin9iwNT0mDvewcCr0Gf/gUQc+rg3v6bY/LX+Q7bw v09GqAMKSqwIVfOdSE9AZRLH5lptxD2UA4smZNauFMOwPs6tZbLVbnqHk4lzlHnzj5FL mYJg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:in-reply-to :references:organization:mime-version:content-transfer-encoding; bh=KJ+yQ5bWaZ2enwzjx+4GHtaZjxc83d9TFtN5y4k2HgI=; b=iPrIpZmJtnm4A/lBgvof7Ex0WrhPavph9v0axcfVChpD+iNYrEJsS3JbN7EQ1CN2DF N0/GkUURjM+MjEqrQw7WI3FI6YqOCFYhSN/4WnKv+l03vRM/tQnEkJyLQO6kRsmub0wl XJ80gJ6ky5s6xlcoqAyw/m/YsDKcovkwxAaVptP5NI9vHMAQQrnRBgGodIrsxbgGWwvk 22RdouzIkNwCJLCkKXmCtZP59C4mgQ5m/+Z1qxnNEU3UpbYrWkJknBy/lzSivX4YZPvN SiuQqR3b096OFr1XqiYKXpBMLoEVHDRja70KdeNqJA468zNy3uUGvKYPzWiU2OoI/+FO k5qw== X-Gm-Message-State: AOAM532dgHhLySFwjGe5FgXM0zIVWjftv/Fn27IdQDAiXNQnUvxkZckM xOHbB7AJhkfeMsqjPmI+OHI= X-Google-Smtp-Source: ABdhPJwh8l3R0l+5Z0cCZw5Tw01gyH/2L5iZDeU27N+EyiLMmddVKlQ+fKoZdTxT07XrfYEndiiX9A== X-Received: by 2002:a17:902:d64e:b029:df:e5b1:b7f7 with SMTP id y14-20020a170902d64eb02900dfe5b1b7f7mr8586928plh.10.1611710156278; Tue, 26 Jan 2021 17:15:56 -0800 (PST) Received: from localhost ([103.220.76.197]) by smtp.gmail.com with ESMTPSA id d128sm218943pga.87.2021.01.26.17.15.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 Jan 2021 17:15:55 -0800 (PST) Date: Wed, 27 Jan 2021 09:15:49 +0800 From: carlis To: Dan Carpenter Cc: gregkh@linuxfoundation.org, devel@driverdev.osuosl.org, linux-fbdev@vger.kernel.org, mh12gx2825@gmail.com, oliver.graute@kococonnector.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, sbrivio@redhat.com, colin.king@canonical.com, zhangxuezhi1@yulong.com Subject: Re: [PATCH v4] fbtft: add tearing signal detect Message-ID: <20210127091549.00005933@gmail.com> In-Reply-To: <20210126175141.GZ2696@kadam> References: <1611664835-150687-1-git-send-email-zhangxuezhi3@gmail.com> <20210126175141.GZ2696@kadam> Organization: Tyzmig-ryrjum-8kedto X-Mailer: Claws Mail 3.17.4 (GTK+ 2.24.32; i686-w64-mingw32) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org On Tue, 26 Jan 2021 20:51:41 +0300 Dan Carpenter wrote: > On Tue, Jan 26, 2021 at 08:40:35PM +0800, Carlis wrote: > > @@ -82,6 +111,29 @@ enum st7789v_command { > > */ > > static int init_display(struct fbtft_par *par) > > { > > + int rc; > > + struct device *dev = par->info->device; > > + > > + par->gpio.te = devm_gpiod_get_index_optional(dev, "te", 0, > > GPIOD_IN); > > + if (par->gpio.te) { > > I explained in my earlier review that devm_gpiod_get_index_optional() > can return error pointers... There was quite a bit of detail about > how to handle this correctly in my earlier review, but I think you > might not have noticed it. Please read it again. > > > + init_completion(&spi_panel_te); > > + mutex_init(&te_mutex); > > + rc = devm_request_irq(dev, > > + gpiod_to_irq(par->gpio.te), > > + spi_panel_te_handler, > > IRQF_TRIGGER_RISING, > > + "TE_GPIO", par); > > + if (rc) { > > + pr_err("TE request_irq failed.\n"); > > + devm_gpiod_put(dev, par->gpio.te); > > + par->gpio.te = NULL; > > + } else { > > + > > disable_irq_nosync(gpiod_to_irq(par->gpio.te)); > > + pr_info("TE request_irq completion.\n"); > > + } > > + } else { > > + pr_err("%s:%d, TE gpio not specified\n", > > + __func__, __LINE__); > > + } > > regards, > dan carpenter > Thank you for your correction,i will change pr_err to pr_info in next patch v5 regards, dan carpenter