From patchwork Mon May 31 11:22:37 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabio Estevam X-Patchwork-Id: 12289167 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=-15.7 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,URIBL_BLOCKED,USER_AGENT_GIT 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 EFABAC47082 for ; Mon, 31 May 2021 11:23:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C875661090 for ; Mon, 31 May 2021 11:23:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231357AbhEaLYr (ORCPT ); Mon, 31 May 2021 07:24:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58814 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231331AbhEaLYo (ORCPT ); Mon, 31 May 2021 07:24:44 -0400 Received: from mail-qt1-x836.google.com (mail-qt1-x836.google.com [IPv6:2607:f8b0:4864:20::836]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 33CC6C06174A; Mon, 31 May 2021 04:23:05 -0700 (PDT) Received: by mail-qt1-x836.google.com with SMTP id c10so7654871qtx.10; Mon, 31 May 2021 04:23:05 -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=Mt7POv9PaCwKFvdwIODXsLJlyClKZZS8dpjMNwC08Rk=; b=FpkAUxBHyO6WxH6MjvrfYwHqOShz/gWIonA+Zb6HgAqE7r/GxLuo7uPfudu/hlT4Cz EvoMTXEi8geOdv0lx/bn7vQDJIXeSoBupCGmZZfQ1sCCzNIMy/+0X7zU2kt+KNqGIhp3 MhVs2rNyUU5oP+zHJG6kfWdlOMrj/HN83OAK3AKPzG25FDxOF4TkZitdjQ+UVjXVxpTi 5KKji0u8fvXeyel7lUPyDgyCvXztM0CfChX2TKFs8zLMM4lhB2C6wnkICSmNRZYtpZjA F0/RajNllgXEK6ftJ4FaprWp+O8at6YCo46gLDFWaUZPbGIzSUnMTNCqJrifVIWyfyN1 qB2g== 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=Mt7POv9PaCwKFvdwIODXsLJlyClKZZS8dpjMNwC08Rk=; b=RQCwh0SDrwNJQ5HzMLuB/He2QnXNk5MtKtoFjY5cWZOCGOBnCw/6fjgl3j0mCOrogc R1rcjqxrFRGxlfn7d+MeCZbrpUFr+mFiJA7bnhBYokZ0WTa4RgskgXxJu9+hWZWF+vpz fsbYctFWnQ7Kjdfc/FCNgfjhVcL151OEM/pIThDvBMpsmTmOAOPLyghLVjlELdVObaX1 nQ1kRyv0vb3dQNhrBphZ6BNdyX4Jxl/374uXnDn5yFrzfsai0vHWCR08pjo11mNrpnmF TWZUMbqBJpJKzpVa14yFy1JsHf1Uzm2yU8G9mVS1OePRcWAaLVTF3xh5uBihplm3aigT UrSQ== X-Gm-Message-State: AOAM533vEJ+YVAs9RO6wqNkKvdulKFiu5m79Ho4no3cOX3JZ1lXUeo+Z xJL+/0Lc2AhKnCjnbJaAXBY= X-Google-Smtp-Source: ABdhPJxzSZAUeVtEqtOK6G/lO950T7d9LNRDEcB1h+2IPLpRndsKnrbArB4s83shNBHe9LfY3fRZOw== X-Received: by 2002:ac8:51c4:: with SMTP id d4mr14458594qtn.186.1622460184409; Mon, 31 May 2021 04:23:04 -0700 (PDT) Received: from localhost.localdomain ([2804:14c:485:504a:df45:f91c:ea2e:9334]) by smtp.gmail.com with ESMTPSA id h5sm9105480qkg.122.2021.05.31.04.23.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 31 May 2021 04:23:04 -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 v2 3/3] media: i2c: adv7180: Print the chip ID on probe Date: Mon, 31 May 2021 08:22:37 -0300 Message-Id: <20210531112237.706063-3-festevam@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210531112237.706063-1-festevam@gmail.com> References: <20210531112237.706063-1-festevam@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Improve the probe message by printing the chip ID version. Signed-off-by: Fabio Estevam Reviewed-by: Frieder Schrempf --- Changes since v1: - Added Frieder's Reviewed-by tag. 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 2890041cc231..4f99b46e7eaa 100644 --- a/drivers/media/i2c/adv7180.c +++ b/drivers/media/i2c/adv7180.c @@ -1415,11 +1415,19 @@ 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);