From patchwork Mon May 22 13:01:52 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tero Kristo X-Patchwork-Id: 765408 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3wWf2l19vbz9s3s for ; Mon, 22 May 2017 23:02:39 +1000 (AEST) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=ti.com header.i=@ti.com header.b="h1LbyDEc"; dkim-atps=neutral Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757939AbdEVNCh (ORCPT ); Mon, 22 May 2017 09:02:37 -0400 Received: from lelnx194.ext.ti.com ([198.47.27.80]:36790 "EHLO lelnx194.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757112AbdEVNCg (ORCPT ); Mon, 22 May 2017 09:02:36 -0400 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by lelnx194.ext.ti.com (8.15.1/8.15.1) with ESMTP id v4MD280d019772; Mon, 22 May 2017 08:02:08 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ti.com; s=ti-com-17Q1; t=1495458128; bh=K3nZCHlQiyRngl3MGKciVsd0NL2/y4GmkOBlMBEiINI=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=h1LbyDEc4uUoOds2cgG7TukZrS1i/6cW8wo5cnlSqJhQmzX2ndPixr4oPNLVxjErr PdwbxEyHvUQIzAzFcxVeiBgVyerXEkn4+RyebtMqTbS01YYRgCvtU5DvdjxCkr/o0p z32Wob6b6zA8TEnC9TmLv+rc1NVkh1zShwlUY5XM= Received: from DFLE72.ent.ti.com (dfle72.ent.ti.com [128.247.5.109]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id v4MD28hb028533; Mon, 22 May 2017 08:02:08 -0500 Received: from dflp32.itg.ti.com (10.64.6.15) by DFLE72.ent.ti.com (128.247.5.109) with Microsoft SMTP Server id 14.3.294.0; Mon, 22 May 2017 08:02:07 -0500 Received: from gomoku.home (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp32.itg.ti.com (8.14.3/8.13.8) with ESMTP id v4MD23OA010416; Mon, 22 May 2017 08:02:06 -0500 From: Tero Kristo To: , , , , CC: Subject: [PATCHv4 1/2] Documentation: dt: Add TI SCI clock driver Date: Mon, 22 May 2017 16:01:52 +0300 Message-ID: <1495458113-7366-2-git-send-email-t-kristo@ti.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1495458113-7366-1-git-send-email-t-kristo@ti.com> References: <1495458113-7366-1-git-send-email-t-kristo@ti.com> MIME-Version: 1.0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add a clock implementation, TI SCI clock, that will hook to the common clock framework, and allow each clock to be controlled via TI SCI protocol. Signed-off-by: Tero Kristo Acked-by: Rob Herring --- .../devicetree/bindings/clock/ti,sci-clk.txt | 37 ++++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 38 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/ti,sci-clk.txt diff --git a/Documentation/devicetree/bindings/clock/ti,sci-clk.txt b/Documentation/devicetree/bindings/clock/ti,sci-clk.txt new file mode 100644 index 0000000..1e884c4 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/ti,sci-clk.txt @@ -0,0 +1,37 @@ +Texas Instruments TI-SCI Clocks +=============================== + +All clocks on Texas Instruments' SoCs that contain a System Controller, +are only controlled by this entity. Communication between a host processor +running an OS and the System Controller happens through a protocol known +as TI-SCI[1]. This clock implementation plugs into the common clock +framework and makes use of the TI-SCI protocol on clock API requests. + +[1] Documentation/devicetree/bindings/arm/keystone/ti,sci.txt + +Required properties: +------------------- +- compatible: Must be "ti,k2g-sci-clk" +- #clock-cells: Shall be 2. + In clock consumers, this cell represents the device ID and clock ID + exposed by the PM firmware. The assignments can be found in the header + files .h> (which covers the device IDs) and + .h> (which covers the clock IDs), where + is the SoC involved, for example 'k2g'. + +Examples: +-------- + +pmmc: pmmc { + compatible = "ti,k2g-sci"; + + k2g_clks: clocks { + compatible = "ti,k2g-sci-clk"; + #clock-cells = <2>; + }; +}; + +uart0: serial@2530c00 { + compatible = "ns16550a"; + clocks = <&k2g_clks 0x2c 0>; +}; diff --git a/MAINTAINERS b/MAINTAINERS index f7d568b..880a23d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -12630,6 +12630,7 @@ F: include/linux/soc/ti/ti_sci_protocol.h F: Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt F: include/dt-bindings/genpd/k2g.h F: drivers/soc/ti/ti_sci_pm_domains.c +F: Documentation/devicetree/bindings/clock/ti,sci-clk.txt THANKO'S RAREMONO AM/FM/SW RADIO RECEIVER USB DRIVER M: Hans Verkuil