From patchwork Thu Dec 1 15:27:41 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gabriel FERNANDEZ X-Patchwork-Id: 9456373 X-Patchwork-Delegate: sboyd@codeaurora.org Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 71EF160235 for ; Thu, 1 Dec 2016 15:28:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6497F284F8 for ; Thu, 1 Dec 2016 15:28:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5813E284FA; Thu, 1 Dec 2016 15:28:54 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6BE96284F8 for ; Thu, 1 Dec 2016 15:28:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759650AbcLAP2w (ORCPT ); Thu, 1 Dec 2016 10:28:52 -0500 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:40599 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757374AbcLAP2u (ORCPT ); Thu, 1 Dec 2016 10:28:50 -0500 Received: from pps.filterd (m0046668.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.11/8.16.0.11) with SMTP id uB1FRJ4w014866; Thu, 1 Dec 2016 16:28:02 +0100 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-.pphosted.com with ESMTP id 26y0r3wrs2-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Thu, 01 Dec 2016 16:28:02 +0100 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 7100B34; Thu, 1 Dec 2016 15:28:01 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas21.st.com [10.75.90.44]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 063382BF9; Thu, 1 Dec 2016 15:28:01 +0000 (GMT) Received: from localhost (10.48.1.80) by Webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.294.0; Thu, 1 Dec 2016 16:28:00 +0100 From: To: Rob Herring , Mark Rutland , Russell King , Maxime Coquelin , Alexandre Torgue , Michael Turquette , Stephen Boyd , Nicolas Pitre , Arnd Bergmann , , , CC: , , , , , , , , Subject: [PATCH v3 1/9] clk: stm32f4: Update DT bindings documentation Date: Thu, 1 Dec 2016 16:27:41 +0100 Message-ID: <1480606069-5178-2-git-send-email-gabriel.fernandez@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1480606069-5178-1-git-send-email-gabriel.fernandez@st.com> References: <1480606069-5178-1-git-send-email-gabriel.fernandez@st.com> MIME-Version: 1.0 X-Originating-IP: [10.48.1.80] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2016-12-01_12:, , signatures=0 Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Gabriel Fernandez Creation of dt include file for specific stm32f4 clocks. These specific clocks are not derived from system clock (SYSCLOCK) We should use index 1 to use these clocks in DT. e.g. <&rcc 1 CLK_LSI> Signed-off-by: Gabriel Fernandez Acked-by: Rob Herring --- .../devicetree/bindings/clock/st,stm32-rcc.txt | 15 +++++++++ include/dt-bindings/clock/stm32f4-clock.h | 37 ++++++++++++++++++++++ 2 files changed, 52 insertions(+) create mode 100644 include/dt-bindings/clock/stm32f4-clock.h diff --git a/Documentation/devicetree/bindings/clock/st,stm32-rcc.txt b/Documentation/devicetree/bindings/clock/st,stm32-rcc.txt index 0532d81..8f93740 100644 --- a/Documentation/devicetree/bindings/clock/st,stm32-rcc.txt +++ b/Documentation/devicetree/bindings/clock/st,stm32-rcc.txt @@ -17,6 +17,9 @@ Required properties: property, containing a phandle to the clock device node, an index selecting between gated clocks and other clocks and an index specifying the clock to use. +- clocks: External oscillator clock phandle + - high speed external clock signal (HSE) + - external I2S clock (I2S_CKIN) Example: @@ -25,6 +28,7 @@ Example: #clock-cells = <2> compatible = "st,stm32f42xx-rcc", "st,stm32-rcc"; reg = <0x40023800 0x400>; + clocks = <&clk_hse>, <&clk_i2s_ckin>; }; Specifying gated clocks @@ -66,6 +70,17 @@ The secondary index is bound with the following magic numbers: 0 SYSTICK 1 FCLK + 2 CLK_LSI (low-power clock source) + 3 CLK_LSE (generated from a 32.768 kHz low-speed external + crystal or ceramic resonator) + 4 CLK_HSE_RTC (HSE division factor for RTC clock) + 5 CLK_RTC (real-time clock) + 6 PLL_VCO_I2S (vco frequency of I2S pll) + 7 PLL_VCO_SAI (vco frequency of SAI pll) + 8 CLK_LCD (LCD-TFT) + 9 CLK_I2S (I2S clocks) + 10 CLK_SAI1 (audio clocks) + 11 CLK_SAI2 Example: diff --git a/include/dt-bindings/clock/stm32f4-clock.h b/include/dt-bindings/clock/stm32f4-clock.h new file mode 100644 index 0000000..5431f00 --- /dev/null +++ b/include/dt-bindings/clock/stm32f4-clock.h @@ -0,0 +1,37 @@ +/* + * stm32f4-clock.h + * + * Copyright (C) 2016 STMicroelectronics + * Author: Gabriel Fernandez for STMicroelectronics. + * License terms: GNU General Public License (GPL), version 2 + */ + +/* + * List of clocks wich are not derived from system clock (SYSCLOCK) + * + * The index of these clocks is the secondary index of DT bindings + * (see Documentatoin/devicetree/bindings/clock/st,stm32-rcc.txt) + * + * e.g: + ; +*/ + +#ifndef _DT_BINDINGS_CLK_STMF4_H +#define _DT_BINDINGS_CLK_STMF4_H + +#define SYSTICK 0 +#define FCLK 1 +#define CLK_LSI 2 +#define CLK_LSE 3 +#define CLK_HSE_RTC 4 +#define CLK_RTC 5 +#define PLL_VCO_I2S 6 +#define PLL_VCO_SAI 7 +#define CLK_LCD 8 +#define CLK_I2S 9 +#define CLK_SAI1 10 +#define CLK_SAI2 11 + +#define END_PRIMARY_CLK 12 + +#endif