From patchwork Tue May 26 21:55:26 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Serge Semin X-Patchwork-Id: 207577 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=-6.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED 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 EDB4EC433E3 for ; Tue, 26 May 2020 21:55:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CE4CE20888 for ; Tue, 26 May 2020 21:55:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390566AbgEZVzw (ORCPT ); Tue, 26 May 2020 17:55:52 -0400 Received: from mail.baikalelectronics.com ([87.245.175.226]:60006 "EHLO mail.baikalelectronics.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390202AbgEZVzw (ORCPT ); Tue, 26 May 2020 17:55:52 -0400 Received: from localhost (unknown [127.0.0.1]) by mail.baikalelectronics.ru (Postfix) with ESMTP id BCCD58030833; Tue, 26 May 2020 21:55:43 +0000 (UTC) X-Virus-Scanned: amavisd-new at baikalelectronics.ru Received: from mail.baikalelectronics.ru ([127.0.0.1]) by localhost (mail.baikalelectronics.ru [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id zgntezMAGneV; Wed, 27 May 2020 00:55:43 +0300 (MSK) From: Serge Semin To: Jarkko Nikula , Wolfram Sang , Andy Shevchenko , Mika Westerberg CC: Serge Semin , Serge Semin , Alexey Malahov , Thomas Bogendoerfer , Rob Herring , , , , Subject: [PATCH v3 10/12] i2c: designware: Retrieve quirk flags as early as possible Date: Wed, 27 May 2020 00:55:26 +0300 Message-ID: <20200526215528.16417-11-Sergey.Semin@baikalelectronics.ru> In-Reply-To: <20200526215528.16417-1-Sergey.Semin@baikalelectronics.ru> References: <20200526215528.16417-1-Sergey.Semin@baikalelectronics.ru> MIME-Version: 1.0 X-ClientProxiedBy: MAIL.baikal.int (192.168.51.25) To mail (192.168.51.25) Sender: linux-i2c-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Some platforms might need to activate the driver quirks at a very early probe stage. For instance, Baikal-T1 System I2C doesn't need to map the registers space as ones belong to the system controller. Instead it will request the syscon regmap from the parental DT node. In order to be able to do so let's retrieve the model flags right after the DW I2C private data is created. Signed-off-by: Serge Semin Cc: Alexey Malahov Cc: Thomas Bogendoerfer Cc: Rob Herring Cc: linux-mips@vger.kernel.org Cc: devicetree@vger.kernel.org --- Changelog v3: - This is a new patch, which has been created due to declining the glue-layer approach. --- drivers/i2c/busses/i2c-designware-platdrv.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 57475f19448a..5ef7ffcf7f85 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -252,6 +252,8 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) if (!dev) return -ENOMEM; + dev->flags |= (uintptr_t)device_get_match_data(&pdev->dev); + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); dev->base = devm_ioremap_resource(&pdev->dev, mem); if (IS_ERR(dev->base)) @@ -295,8 +297,6 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) else t->bus_freq_hz = I2C_MAX_FAST_MODE_FREQ; - dev->flags |= (uintptr_t)device_get_match_data(&pdev->dev); - if (pdev->dev.of_node) dw_i2c_of_configure(pdev);