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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 918CEC433E0 for ; Thu, 2 Jul 2020 10:31:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7038E20747 for ; Thu, 2 Jul 2020 10:31:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593685910; bh=F9vnAZWeYI1yUXDMzQowJVQL7nOsdUhI++UYvZLndE0=; h=From:To:Cc:Subject:Date:List-ID:From; b=dIkv+ykEZ3df8voeRu9U2iRHjo/6mLvoaSUGuMmq4cdATR138aW+OjCBpXg1XS2Lp +jZXtSJgM94O2+URl7NiPXMugQmT1SREyWfYcdo8tDry6xdVC5PfmzrLIaM/sDUA3M 94iXbtCXhtnM5BYSjPFGtD+Oqr+ZEWvrlvPEshOQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728404AbgGBKbs (ORCPT ); Thu, 2 Jul 2020 06:31:48 -0400 Received: from mail-ej1-f65.google.com ([209.85.218.65]:39231 "EHLO mail-ej1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727900AbgGBKbs (ORCPT ); Thu, 2 Jul 2020 06:31:48 -0400 Received: by mail-ej1-f65.google.com with SMTP id w6so28709994ejq.6; Thu, 02 Jul 2020 03:31:46 -0700 (PDT) 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:mime-version :content-transfer-encoding; bh=ud2BD5mh1oHuMfR912NokotFsl+3DpQPjYT/i6xyLjE=; b=iXcFgwYtjO0qQOFlBonS0IPkqjxSCD8ns0eJIPcQqQgEfQ+0ZcYZ6xWM/pmjU9fr50 /pQyjpLu26HrSElYHS2Y+hMdakhAM6RNSNf1LcjkgrpL8nvN94M2hA1rtmJn8Ou67rRr 2TjFuNArvYl3isfPHQ9zGbtmG+814BIXuX3Dl9jptKLWW7e1k953iz2UF7ZgzXe/N+R7 2/37GX8wrIwBFSmYjIwtSuWkOJePjw0TXTyi8ZFywx7eKtmtvM+LJGW0WPlYn92VhG0I Yge31T+aI2zQFQbxUPYh9kjRvNeWOFQ4LTpZ/whb3DSYJwe//a1mF7oKQUzOYrXYwLtM EGPw== X-Gm-Message-State: AOAM532bT8DxKh7X7XdGBQpZEhpC8NGNLX8ZTl2T+3jsH0VvqYhBdkRo YXhbL6qKvN6XcG57MwW+PLk= X-Google-Smtp-Source: ABdhPJyLDMY5ZUc+B1R15VoFZTC82DmYosz5fFnuz4c8IjCCux+gvAIPwsIoaM60eCrMcCuP7BefTQ== X-Received: by 2002:a17:906:547:: with SMTP id k7mr26357373eja.287.1593685906142; Thu, 02 Jul 2020 03:31:46 -0700 (PDT) Received: from neopili.qtec.com (cpe.xe-3-0-1-778.vbrnqe10.dk.customer.tdc.net. [80.197.57.18]) by smtp.gmail.com with ESMTPSA id d20sm8623356edy.9.2020.07.02.03.31.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Jul 2020 03:31:45 -0700 (PDT) From: Ricardo Ribalda To: Jarkko Nikula , Andy Shevchenko , Mika Westerberg , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, Wolfram Sang Cc: Ricardo Ribalda Subject: [PATCH v5] i2c: designware: platdrv: Set class based on DMI Date: Thu, 2 Jul 2020 12:31:43 +0200 Message-Id: <20200702103143.2091958-1-ribalda@kernel.org> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Current AMD's zen-based APUs use this core for some of its i2c-buses. With this patch we re-enable autodetection of hwmon-alike devices, so lm-sensors will be able to work automatically. It does not affect the boot-time of embedded devices, as the class is set based on the DMI information. DMI is probed only on Qtechnology QT5222 Industrial Camera Platform. DocLink: https://qtec.com/camera-technology-camera-platforms/ Fixes: 3eddad96c439 ("i2c: designware: reverts "i2c: designware: Add support for AMD I2C controller"") Signed-off-by: Ricardo Ribalda Reviewed-by: Andy Shevchenko --- v5: Comments by Andy Shevchenko - Add missing period and removed extra line drivers/i2c/busses/i2c-designware-platdrv.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index c2efaaaac252..630e28ef2412 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include @@ -191,6 +192,18 @@ static int dw_i2c_plat_request_regs(struct dw_i2c_dev *dev) return ret; } +static const struct dmi_system_id dw_i2c_hwmon_class_dmi[] = { + { + .ident = "Qtechnology QT5222", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Qtechnology"), + DMI_MATCH(DMI_PRODUCT_NAME, "QT5222"), + }, + }, + + { } /* terminate list */ +}; + static int dw_i2c_plat_probe(struct platform_device *pdev) { struct dw_i2c_platform_data *pdata = dev_get_platdata(&pdev->dev); @@ -267,7 +280,8 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) adap = &dev->adapter; adap->owner = THIS_MODULE; - adap->class = I2C_CLASS_DEPRECATED; + adap->class = dmi_check_system(dw_i2c_hwmon_class_dmi) ? + I2C_CLASS_HWMON : I2C_CLASS_DEPRECATED; ACPI_COMPANION_SET(&adap->dev, ACPI_COMPANION(&pdev->dev)); adap->dev.of_node = pdev->dev.of_node; adap->nr = -1; -- 2.27.0