From patchwork Sun May 30 20:44:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabio Estevam X-Patchwork-Id: 450587 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham 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 C088DC47091 for ; Sun, 30 May 2021 20:44:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A57C26120E for ; Sun, 30 May 2021 20:44:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229920AbhE3UqX (ORCPT ); Sun, 30 May 2021 16:46:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34502 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229756AbhE3UqW (ORCPT ); Sun, 30 May 2021 16:46:22 -0400 Received: from mail-qk1-x72b.google.com (mail-qk1-x72b.google.com [IPv6:2607:f8b0:4864:20::72b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4326BC061574; Sun, 30 May 2021 13:44:44 -0700 (PDT) Received: by mail-qk1-x72b.google.com with SMTP id o27so9500051qkj.9; Sun, 30 May 2021 13:44:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=RL6cDeAlG0LBZMl6xb0WVuFtskFVdK/P7eLeI1c+lN0=; b=g5//hAT9Bss8X1RCcPDH7nH9hCTSaqv2DK4vQrz8cGkLk7CiN0HLCFVnn3Uu37PwVW h9uvpndX4cGh6gpytAtnvJQGNdHLDbTtvRmQf+sIBorXXFgsQadpDYc3HBCzXHKejUlj rvpIrw4fQ0GMSh1U2/9xXYXxSIUdYONdPGjY2HEWJG7A3pZJvp5KY7spNLh7Nwd37LkD KDycQGDe/FFOeeFd03DXXYCF/z9jf8k9031tPL9yydQfmuDEMy2WCQ/UkYyzxy2cak5o wfvFPQQpgtnwjpwKsiRkAlw98DiqxWgrALxsEUzKtsOL3Iux6/IHezH14sNuybiinBuj yp2w== 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=RL6cDeAlG0LBZMl6xb0WVuFtskFVdK/P7eLeI1c+lN0=; b=pTZ2puxySqmiQHsVtKHadF7byt2ZbY+Jao66l/dvTpVt6LggLo/yTloDixldwefvdd J7P9RACDLrvYchdEu8lfnmjBXSe5j+CVcAZjaP1228T9samjDsQWF+IAgCLksukv7ub4 Tt2hMmpnamoKsZ75SzMK4jBUtmCmWVNlKGSEg/0xgDaDczZFXDQI+dnd6keRRLuYJBeO u1nSVXagwDWNmnvFnI8c499X2tYN05k39PaCytiAxRbtPI7++/A8fcre5ZNxacFetgdD m3WU3mECi0HyLm88HVztqTr/Cz666XaxI6iuj1CYKYLgczJB9FwY2QiIoPiLYXPyVqha bXrA== X-Gm-Message-State: AOAM531LPhikF+XZnQf9IOMtfBXHC1Qhchrr/vEsaLJ88NKR3JDeFYgg 2LC0LfbGwoIvKsVw/TlbKg0= X-Google-Smtp-Source: ABdhPJzUyKvLZ+PY0OMnWqctO3qvtMjyuCpz8On1AqREQYq7g99INlx7zjhuObPF/yCahpJKgnXR0Q== X-Received: by 2002:a37:a9d3:: with SMTP id s202mr13693405qke.246.1622407483400; Sun, 30 May 2021 13:44:43 -0700 (PDT) Received: from localhost.localdomain ([2804:14c:485:504a:3dc6:a286:1b00:8f0a]) by smtp.gmail.com with ESMTPSA id m14sm7192666qti.12.2021.05.30.13.44.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 May 2021 13:44:42 -0700 (PDT) From: Fabio Estevam To: hverkuil-cisco@xs4all.nl Cc: lars@metafoo.de, robh+dt@kernel.org, devicetree@vger.kernel.org, linux-media@vger.kernel.org, tharvey@gateworks.com, frieder.schrempf@kontron.de, niklas.soderlund@ragnatech.se, Fabio Estevam Subject: [PATCH 3/3] media: i2c: adv7180: Print the chip ID on probe Date: Sun, 30 May 2021 17:44:10 -0300 Message-Id: <20210530204410.676831-3-festevam@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210530204410.676831-1-festevam@gmail.com> References: <20210530204410.676831-1-festevam@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Improve the probe message by printing the chip ID version. Signed-off-by: Fabio Estevam Reviewed-by: Frieder Schrempf --- drivers/media/i2c/adv7180.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c index 2811f2c337fa..e5ef99f0460c 100644 --- a/drivers/media/i2c/adv7180.c +++ b/drivers/media/i2c/adv7180.c @@ -1404,11 +1404,19 @@ static int adv7180_probe(struct i2c_client *client, if (ret) goto err_free_irq; - v4l_info(client, "chip found @ 0x%02x (%s)\n", - client->addr, client->adapter->name); + mutex_lock(&state->mutex); + ret = adv7180_read(state, ADV7180_REG_IDENT); + mutex_unlock(&state->mutex); + if (ret < 0) + goto err_v4l2_async_unregister; + + v4l_info(client, "chip id 0x%x found @ 0x%02x (%s)\n", + ret, client->addr, client->adapter->name); return 0; +err_v4l2_async_unregister: + v4l2_async_unregister_subdev(sd); err_free_irq: if (state->irq > 0) free_irq(client->irq, state);