From patchwork Tue Dec 13 14:20:12 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gabriel FERNANDEZ X-Patchwork-Id: 9472397 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 E84A46021C for ; Tue, 13 Dec 2016 14:23:57 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D84DF2856D for ; Tue, 13 Dec 2016 14:23:57 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CCDEC28583; Tue, 13 Dec 2016 14:23:57 +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=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id D96032856D for ; Tue, 13 Dec 2016 14:23:56 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.85_2 #1 (Red Hat Linux)) id 1cGny7-0001BD-R5; Tue, 13 Dec 2016 14:22:11 +0000 Received: from mx07-00178001.pphosted.com ([62.209.51.94]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1cGnxn-000124-Tg for linux-arm-kernel@lists.infradead.org; Tue, 13 Dec 2016 14:21:53 +0000 Received: from pps.filterd (m0046037.ppops.net [127.0.0.1]) by m0046037.ppops.net (8.16.0.11/8.16.0.11) with SMTP id uBDE8prI008851; Tue, 13 Dec 2016 15:21:00 +0100 Received: from beta.dmz-us.st.com (beta.dmz-us.st.com [167.4.1.35]) by mx07-.pphosted.com with ESMTP id 2788bwndcr-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Tue, 13 Dec 2016 15:21:00 +0100 Received: from zeta.dmz-us.st.com (ns4.st.com [167.4.16.71]) by beta.dmz-us.st.com (STMicroelectronics) with ESMTP id 50CAD26; Tue, 13 Dec 2016 14:20:57 +0000 (GMT) Received: from Webmail-eu.st.com (safex1hubcas1.st.com [10.75.90.14]) by zeta.dmz-us.st.com (STMicroelectronics) with ESMTP id E9B387F8; Tue, 13 Dec 2016 14:20:55 +0000 (GMT) Received: from localhost (10.48.1.80) by webmail-eu.st.com (10.75.90.13) with Microsoft SMTP Server (TLS) id 8.3.444.0; Tue, 13 Dec 2016 15:20:54 +0100 From: To: Rob Herring , Mark Rutland , Russell King , Maxime Coquelin , Alexandre Torgue , Michael Turquette , Stephen Boyd , Nicolas Pitre , Arnd Bergmann , , , Subject: [PATCH v4 1/9] clk: stm32f4: Update DT bindings documentation Date: Tue, 13 Dec 2016 15:20:12 +0100 Message-ID: <1481638820-29324-2-git-send-email-gabriel.fernandez@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1481638820-29324-1-git-send-email-gabriel.fernandez@st.com> References: <1481638820-29324-1-git-send-email-gabriel.fernandez@st.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2016-12-13_11:, , signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20161213_062152_346867_DEF7B45D X-CRM114-Status: GOOD ( 13.46 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, amelie.delaunay@st.com, kernel@stlinux.com, olivier.bideau@st.com, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, ludovic.barre@st.com, gabriel.fernandez@st.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.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 | 17 ++++++++++ include/dt-bindings/clock/stm32fx-clock.h | 39 ++++++++++++++++++++++ 2 files changed, 56 insertions(+) create mode 100644 include/dt-bindings/clock/stm32fx-clock.h diff --git a/Documentation/devicetree/bindings/clock/st,stm32-rcc.txt b/Documentation/devicetree/bindings/clock/st,stm32-rcc.txt index 0532d81..8f19d87 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 +70,19 @@ 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 + 12 CLK_I2SQ_PDIV (post divisor of pll i2s q divisor) + 13 CLK_SAIQ_PDIV (post divisor of pll sai q divisor) Example: diff --git a/include/dt-bindings/clock/stm32fx-clock.h b/include/dt-bindings/clock/stm32fx-clock.h new file mode 100644 index 0000000..08bcab6 --- /dev/null +++ b/include/dt-bindings/clock/stm32fx-clock.h @@ -0,0 +1,39 @@ +/* + * stm32fx-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_STMFX_H +#define _DT_BINDINGS_CLK_STMFX_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 CLK_I2SQ_PDIV 12 +#define CLK_SAIQ_PDIV 13 + +#define END_PRIMARY_CLK 14 + +#endif