From patchwork Wed May 27 12:52:06 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pratyush Yadav X-Patchwork-Id: 1298881 X-Patchwork-Delegate: sjg@chromium.org 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=85.214.62.61; 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=k8pMnzRf; dkim-atps=neutral Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (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 49X9kB4BMlz9sRK for ; Wed, 27 May 2020 22:53:38 +1000 (AEST) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 9FF9B81CC9; Wed, 27 May 2020 14:52:56 +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="k8pMnzRf"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id D387881A26; Wed, 27 May 2020 14:52:29 +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 fllv0015.ext.ti.com (fllv0015.ext.ti.com [198.47.19.141]) (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 0E3A8819D8 for ; Wed, 27 May 2020 14:52:24 +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 fllv0034.itg.ti.com ([10.64.40.246]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 04RCqNfO130736; Wed, 27 May 2020 07:52:23 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1590583943; bh=cRROE7AcBBHDgw+xc+pqxUsuzE1i3hxaC71FnBkblPA=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=k8pMnzRfXHZEzMYcI9VwqQIc6aM+t5tEh/VPa8pXirQ8jEUnCIibCMl3ptwsGN6k7 MkWbKmuyQj7R55xtbYk6XGQ/nSOW90bgz238Ee83uiBnO5ME3o7+5rBCQXNplPlV7E Z02k6Asm0NHOKuUG9a4O8W5CefBZ3MuBr4Em40M8= Received: from DLEE107.ent.ti.com (dlee107.ent.ti.com [157.170.170.37]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 04RCqNrQ043227 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 27 May 2020 07:52:23 -0500 Received: from DLEE115.ent.ti.com (157.170.170.26) by DLEE107.ent.ti.com (157.170.170.37) 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 07:52:22 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DLEE115.ent.ti.com (157.170.170.26) 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 07:52:22 -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 04RCq9HF022313; Wed, 27 May 2020 07:52:21 -0500 From: Pratyush Yadav To: Simon Glass , CC: Pratyush Yadav , Vignesh Raghavendra , Sekhar Nori Subject: [PATCH 6/8] regmap: Allow devices to specify regmap range start and size in config Date: Wed, 27 May 2020 18:22:06 +0530 Message-ID: <20200527125208.24881-7-p.yadav@ti.com> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200527125208.24881-1-p.yadav@ti.com> References: <20200527125208.24881-1-p.yadav@ti.com> 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 Some devices need to calculate the regmap base address at runtime. This makes it impossible to use device tree to get the regmap base. Instead, allow devices to specify it in the regmap config. This will create a regmap with a single range that corresponds to the start and size given by the driver. Signed-off-by: Pratyush Yadav Reviewed-by: Simon Glass --- drivers/core/regmap.c | 6 +++++- include/regmap.h | 6 ++++++ 2 files changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/core/regmap.c b/drivers/core/regmap.c index f019a4e9ce..4792067f24 100644 --- a/drivers/core/regmap.c +++ b/drivers/core/regmap.c @@ -279,7 +279,11 @@ struct regmap *devm_regmap_init(struct udevice *dev, if (unlikely(!mapp)) return ERR_PTR(-ENOMEM); - rc = regmap_init_mem(dev_ofnode(dev), mapp); + if (config && config->r_size != 0) + rc = regmap_init_mem_range(dev_ofnode(dev), config->r_start, + config->r_size, mapp); + else + rc = regmap_init_mem(dev_ofnode(dev), mapp); if (rc) return ERR_PTR(rc); diff --git a/include/regmap.h b/include/regmap.h index ea6d8b253d..007e6f4b6f 100644 --- a/include/regmap.h +++ b/include/regmap.h @@ -84,10 +84,16 @@ struct regmap_bus; * REGMAP_SIZE_32 if set to 0. * @reg_offset_shift Left shift the register offset by this value before * performing read or write. + * @r_start: If specified, the regmap is created with one range + * which starts at this address, instead of finding the + * start from device tree. + * @r_size: Same as above for the range size */ struct regmap_config { enum regmap_size_t width; u32 reg_offset_shift; + ulong r_start; + ulong r_size; }; /**