From patchwork Sat Nov 15 11:45:09 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Zhong X-Patchwork-Id: 5311621 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id B0CD7C11AC for ; Sat, 15 Nov 2014 11:48:02 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id DD9F820149 for ; Sat, 15 Nov 2014 11:48:01 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0BBF52010F for ; Sat, 15 Nov 2014 11:48:01 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Xpbo0-0005Rt-EX; Sat, 15 Nov 2014 11:46:16 +0000 Received: from mail-wi0-f180.google.com ([209.85.212.180]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Xpbnu-0005Hm-Ku; Sat, 15 Nov 2014 11:46:11 +0000 Received: by mail-wi0-f180.google.com with SMTP id hi2so4964500wib.13 for ; Sat, 15 Nov 2014 03:45:48 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=ceoVrKsOz9iByDlYClfXZ8tFvJTdH5SaobTGa8GWRcI=; b=CkU4qrwsRbkfTii8MPBXV5Tp0gQATzkdxreoEinM4Nr6AagE+yMeE8pj5qebjp76xM W+PzAxxrxa6p/elITIgV4cmsxnWrxg3kZ9xib7WE85GAl4tv/25p9SJFHkvGk1lZdwcZ rPUKWLHnxxNzSFsOf3+JzI+ZLebz6zBrIa+xMT+gr2cKBUG30S0qlAdYV6cpxM/A1xEu Ape5MMf9QVsmTkWeXI4UrlXkeLl53FP5P+whuHN9IfLolbnMjSMdYAYJMpdmhyyaohj/ M3wWtNWKiS2dbYGXg6KydT29xQrRpFNCU3MT7G+00apCsbWgPSuls9CWGwI0wZf/+rVQ ounQ== X-Received: by 10.180.14.226 with SMTP id s2mr15277887wic.61.1416051948574; Sat, 15 Nov 2014 03:45:48 -0800 (PST) Received: from localhost.localdomain ([104.167.231.136]) by mx.google.com with ESMTPSA id bo1sm10332299wjc.18.2014.11.15.03.45.41 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sat, 15 Nov 2014 03:45:47 -0800 (PST) From: Chris Zhong To: heiko@sntech.de, dianders@chromium.org Subject: [PATCH v8 3/4] ARM: dts: add RK3288 suspend support Date: Sat, 15 Nov 2014 19:45:09 +0800 Message-Id: <1416051910-16730-4-git-send-email-zyw@rock-chips.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1416051910-16730-1-git-send-email-zyw@rock-chips.com> References: <1416051910-16730-1-git-send-email-zyw@rock-chips.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141115_034610_887599_511B90F4 X-CRM114-Status: UNSURE ( 9.52 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.5 (/) Cc: Mark Rutland , devicetree@vger.kernel.org, Russell King , Pawel Moll , Ian Campbell , Linus Walleij , khilman@kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, Rob Herring , Kumar Gala , Chris Zhong , mturquette@linaro.org, Tony Xie , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_LOW, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP add pmu sram node for suspend, add global_pwroff pinctrl. The pmu sram is used to store the resume code. global_pwroff is held low level at work, it would be pull to high when entering suspend. reference this in the board DTS file since some boards need it. ddrio_pwroff is power switch of ddr_controller, if you want to cut off power rail of ddr_controller during suspend, please reference it. ddr0_retention/ddr1_retention are the retention mode switches, if you want to use the retention mode during suspend, please reference them. Signed-off-by: Tony Xie Signed-off-by: Chris Zhong Reviewed-by: Doug Anderson Tested-by: Doug Anderson --- Changes in v8: - add ddr pinctrl for suspend Changes in v7: None Changes in v6: - change pmu_intmem@ff720000 to sram@ff720000 Changes in v5: - change size to 4k Changes in v4: None Changes in v3: None Changes in v2: - put "rockchip,rk3288-pmu-sram" to first arch/arm/boot/dts/rk3288.dtsi | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi index df30437..60bccff 100644 --- a/arch/arm/boot/dts/rk3288.dtsi +++ b/arch/arm/boot/dts/rk3288.dtsi @@ -482,6 +482,11 @@ }; }; + sram@ff720000 { + compatible = "rockchip,rk3288-pmu-sram", "mmio-sram"; + reg = <0xff720000 0x1000>; + }; + pmu: power-management@ff730000 { compatible = "rockchip,rk3288-pmu", "syscon"; reg = <0xff730000 0x100>; @@ -687,6 +692,24 @@ bias-disable; }; + sleep { + global_pwroff: global-pwroff { + rockchip,pins = <0 0 RK_FUNC_1 &pcfg_pull_none>; + }; + + ddrio_pwroff: ddrio-pwroff { + rockchip,pins = <0 1 RK_FUNC_1 &pcfg_pull_none>; + }; + + ddr0_retention: ddr0-retention { + rockchip,pins = <0 2 RK_FUNC_1 &pcfg_pull_up>; + }; + + ddr1_retention: ddr1-retention { + rockchip,pins = <0 3 RK_FUNC_1 &pcfg_pull_up>; + }; + }; + i2c0 { i2c0_xfer: i2c0-xfer { rockchip,pins = <0 15 RK_FUNC_1 &pcfg_pull_none>,