From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932905AbcHJD1y (ORCPT ); Tue, 9 Aug 2016 23:27:54 -0400 Received: from mail-pf0-f193.google.com ([209.85.192.193]:35147 "EHLO mail-pf0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932750AbcHJD04 (ORCPT ); Tue, 9 Aug 2016 23:26:56 -0400 From: Lin Huang To: heiko@sntech.de Cc: myungjoo.ham@samsung.com, mark.yao@rock-chips.com, cw00.choi@samsung.com, airlied@linux.ie, mturquette@baylibre.com, dbasehore@chromium.org, sboyd@codeaurora.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, dianders@chromium.org, linux-rockchip@lists.infradead.org, kyungmin.park@samsung.com, linux-arm-kernel@lists.infradead.org, tixy@linaro.org, typ@rock-chips.com, sudeep.holla@arm.com, mark.rutland@arm.com, linux-pm@vger.kernel.org, Lin Huang Subject: [PATCH v5 6/8] Documentation: bindings: add dt documentation for rk3399 dmc Date: Wed, 10 Aug 2016 11:26:42 +0800 Message-Id: <1470799604-12877-7-git-send-email-hl@rock-chips.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1470799604-12877-1-git-send-email-hl@rock-chips.com> References: <1470799604-12877-1-git-send-email-hl@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds the documentation for rockchip rk3399 dmc driver. Signed-off-by: Lin Huang --- Changes in v5: -None Changes in v4: -None Changes in v3: -None Changes in v2: -None Changes in v1: -None .../devicetree/bindings/devfreq/rk3399_dmc.txt | 35 ++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 Documentation/devicetree/bindings/devfreq/rk3399_dmc.txt diff --git a/Documentation/devicetree/bindings/devfreq/rk3399_dmc.txt b/Documentation/devicetree/bindings/devfreq/rk3399_dmc.txt new file mode 100644 index 0000000..90e9581 --- /dev/null +++ b/Documentation/devicetree/bindings/devfreq/rk3399_dmc.txt @@ -0,0 +1,35 @@ +* Rockchip rk3399 dmc device + +Required properties: +- compatible: Must be "rockchip,rk3399-dmc". +- devfreq-events: Node to get ddr loading, Refer to + Documentation/devicetree/bindings/devfreq/rockchip-dif.txt +- interrupts: The interrupt number to the cpu. The interrupt specifier format + depends on the interrupt controller. +- clocks: Phandles for clock specified in "clock-names" property +- clock-names : The name of clock used by the DFI, must be "pclk_ddr_mon"; +- operating-points-v2: Refer to Documentation/devicetree/bindings/power/opp.txt + for details. +- center-supply: Dmc supply node. +- status: Marks the node enabled/disabled. + +Optional properties: +- ddr_timing: ddr timing need to pass to arm trust firmware +- upthreshold: the upthreshold to simpleondeamnd policy +- downdifferential: The downdifferential to simpleondeamnd policy + +Example: + dmc: dmc { + compatible = "rockchip,rk3399-dmc"; + devfreq-events = <&dfi>; + interrupts = ; + clocks = <&cru SCLK_DDRCLK>; + clock-names = "dmc_clk"; + ddr_timing = <&ddr_timing>; + operating-points-v2 = <&dmc_opp_table>; + center-supply = <&ppvar_centerlogic>; + upthreshold = <15>; + downdifferential = <10>; + status = "disabled"; + }; + -- 1.9.1