From patchwork Wed May 27 12:52:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pratyush Yadav X-Patchwork-Id: 1298875 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; helo=phobos.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=ti.com header.i=@ti.com header.a=rsa-sha256 header.s=ti-com-17Q1 header.b=qrfQx7gu; dkim-atps=neutral Received: from phobos.denx.de (phobos.denx.de [IPv6:2a01:238:438b:c500:173d:9f52:ddab:ee01]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 49X9hr2V3Kz9sPF for ; Wed, 27 May 2020 22:52:28 +1000 (AEST) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 85E00813BF; Wed, 27 May 2020 14:52:19 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (1024-bit key; unprotected) header.d=ti.com header.i=@ti.com header.b="qrfQx7gu"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 1A298811F9; Wed, 27 May 2020 14:52:18 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de X-Spam-Level: X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,SPF_HELO_NONE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.2 Received: from lelv0142.ext.ti.com (lelv0142.ext.ti.com [198.47.23.249]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id EEE9E811F9 for ; Wed, 27 May 2020 14:52:13 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=p.yadav@ti.com Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 04RCqBHb013637; Wed, 27 May 2020 07:52:11 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1590583931; bh=BP2vUcjgG5dozVZP0uSnUVnfMrgLLq7Q5ts6eNAGZuQ=; h=From:To:CC:Subject:Date; b=qrfQx7gufUb6R2P28M98ENBiVEwzAakjUpKrzLSegU5QwfcYM0dlXfChLBNN9SKYK Ff5nhCF8m1rCt69KGIcGBmcn0+sn7nS/V4fcTEHnbDxGt9d2W9Dvv3xRX3+M7zAYr8 lmlq9sR9ghU4BMOz4pvdbFoiWq7ycDkqULYCokcw= Received: from DLEE112.ent.ti.com (dlee112.ent.ti.com [157.170.170.23]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 04RCqBXB025050 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 27 May 2020 07:52:11 -0500 Received: from DLEE114.ent.ti.com (157.170.170.25) by DLEE112.ent.ti.com (157.170.170.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Wed, 27 May 2020 07:52:11 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DLEE114.ent.ti.com (157.170.170.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Wed, 27 May 2020 07:52:11 -0500 Received: from pratyush-OptiPlex-790.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id 04RCq9H9022313; Wed, 27 May 2020 07:52:09 -0500 From: Pratyush Yadav To: Simon Glass , CC: Pratyush Yadav , Vignesh Raghavendra , Sekhar Nori Subject: [PATCH 0/8] regmap: Add managed API, regmap fields, regmap config Date: Wed, 27 May 2020 18:22:00 +0530 Message-ID: <20200527125208.24881-1-p.yadav@ti.com> X-Mailer: git-send-email 2.25.0 MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.30rc1 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.102.2 at phobos.denx.de X-Virus-Status: Clean Hi, This series is a re-spin of Jean-Jacques' earlier effort [0], the goal of which was to facilitate porting drivers from the Linux kernel. It adds the managed API, using the same API as Linux. It also adds support for regmap fields. Jean-Jacques' series added support for custom regmap read/write callbacks. The design was argued against by Simon [1]. He argued that using the driver model was a better idea instead of the custom functions. That would mean slightly more memory usage and a more involved change. The main aim of adding the custom functions is to support the Cadence Sierra PHY driver from Linux [2]. The driver's custom functions aren't very complicated, so they can be replaced by some simple formatting options. So, add the struct regmap_config which contains fields to alter the behaviour of the regmap. This includes specifying the size of the read/write operations via 'width', specifying the start and size of range from code instead of device tree via 'r_start' and 'r_size', and specifying a left shift of the register offset before access via 'reg_offset_shift'. The driver can't be ported verbatim now, but this allows the changes to be very isolated and minimal. These config options allow us to avoid converting to driver model until we really need it. The patches are based on [3] which fixes a segmentation fault in sandbox which didn't allow the tests to complete. [0] https://patchwork.ozlabs.org/project/uboot/cover/20191105114700.24989-1-jjhiblot@ti.com/ [1] https://patchwork.ozlabs.org/comment/2426186/ [2] https://elixir.bootlin.com/linux/latest/source/drivers/phy/cadence/phy-cadence-sierra.c [3] https://patchwork.ozlabs.org/project/uboot/patch/20200526120557.26240-1-p.yadav@ti.com/ Jean-Jacques Hiblot (3): regmap: Add devm_regmap_init() regmap: Add support for regmap fields test: dm: Add tests for regmap managed API and regmap fields Pratyush Yadav (5): regmap: zero out the regmap on allocation regmap: Allow specifying read/write width regmap: Allow left shifting register offset before access regmap: Add regmap_init_mem_range() regmap: Allow devices to specify regmap range start and size in config arch/sandbox/dts/test.dts | 13 +++ drivers/core/regmap.c | 156 +++++++++++++++++++++++++++++- include/regmap.h | 181 ++++++++++++++++++++++++++++++++-- test/dm/regmap.c | 198 ++++++++++++++++++++++++++++++++++++++ 4 files changed, 537 insertions(+), 11 deletions(-) --- 2.26.2