From patchwork Wed Dec 13 06:51:54 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Heiko_St=C3=BCbner?= X-Patchwork-Id: 847784 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yxS6f5j2Pz9sPm for ; Wed, 13 Dec 2017 17:52:10 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750880AbdLMGwJ (ORCPT ); Wed, 13 Dec 2017 01:52:09 -0500 Received: from gloria.sntech.de ([95.129.55.99]:34230 "EHLO gloria.sntech.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750748AbdLMGwJ (ORCPT ); Wed, 13 Dec 2017 01:52:09 -0500 Received: from p5b127e62.dip0.t-ipconnect.de ([91.18.126.98] helo=phil.lan) by gloria.sntech.de with esmtpsa (TLS1.1:DHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.80) (envelope-from ) id 1eP0tg-0004tV-JD; Wed, 13 Dec 2017 07:52:04 +0100 From: Heiko Stuebner To: srinivas.kandagatla@linaro.org Cc: robh+dt@kernel.org, mark.rutland@arm.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, Finley Xiao , Heiko Stuebner Subject: [PATCH v2 1/2] nvmem: rockchip-efuse: parse 'rockchip,efuse-size' Date: Wed, 13 Dec 2017 07:51:54 +0100 Message-Id: <20171213065155.32020-2-heiko@sntech.de> X-Mailer: git-send-email 2.14.2 In-Reply-To: <20171213065155.32020-1-heiko@sntech.de> References: <20171213065155.32020-1-heiko@sntech.de> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Finley Xiao The eFuse size is defined in property before, but the length of registers is not equal to the size on some platforms, so we add a new property to redefine it. Signed-off-by: Finley Xiao Acked-by: Rob Herring Signed-off-by: Heiko Stuebner --- Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt | 4 ++++ drivers/nvmem/rockchip-efuse.c | 4 +++- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt b/Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt index 60bec4782806..a6ef46dd1283 100644 --- a/Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt +++ b/Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt @@ -12,6 +12,10 @@ Required properties: - clocks: Should be the clock id of eFuse - clock-names: Should be "pclk_efuse" +Optional properties: +- rockchip,efuse-size: Should be exact eFuse size in byte, the eFuse + size in property will be invalid if define this property. + Deprecated properties: - compatible: "rockchip,rockchip-efuse" Old efuse compatible value compatible to rk3066a, rk3188 and rk3288 diff --git a/drivers/nvmem/rockchip-efuse.c b/drivers/nvmem/rockchip-efuse.c index 123de77ca5d6..a91372816c0a 100644 --- a/drivers/nvmem/rockchip-efuse.c +++ b/drivers/nvmem/rockchip-efuse.c @@ -217,7 +217,9 @@ static int rockchip_efuse_probe(struct platform_device *pdev) return PTR_ERR(efuse->clk); efuse->dev = &pdev->dev; - econfig.size = resource_size(res); + if (of_property_read_u32(dev->of_node, "rockchip,efuse-size", + &econfig.size)) + econfig.size = resource_size(res); econfig.reg_read = match->data; econfig.priv = efuse; econfig.dev = efuse->dev;