From patchwork Tue Apr 7 08:20:56 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wolfgang Grandegger X-Patchwork-Id: 25663 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from ozlabs.org (localhost [127.0.0.1]) by ozlabs.org (Postfix) with ESMTP id EAC03DE2C3 for ; Tue, 7 Apr 2009 18:23:31 +1000 (EST) X-Original-To: linuxppc-dev@ozlabs.org Delivered-To: linuxppc-dev@ozlabs.org Received: from mail-out.m-online.net (mail-out.m-online.net [212.18.0.10]) by ozlabs.org (Postfix) with ESMTP id C9D67DDF81; Tue, 7 Apr 2009 18:22:34 +1000 (EST) Received: from mail01.m-online.net (mail.m-online.net [192.168.3.149]) by mail-out.m-online.net (Postfix) with ESMTP id A6E391C0004F; Tue, 7 Apr 2009 10:22:30 +0200 (CEST) X-Auth-Info: V7q4wBhBX5gL6u1vQRHn0w1NIxnRQ+ddgt/S575sGPA= Received: from mail.denx.de (host-82-135-33-74.customer.m-online.net [82.135.33.74]) by smtp-auth.mnet-online.de (Postfix) with ESMTP id E0AD190249; Tue, 7 Apr 2009 10:22:31 +0200 (CEST) Received: from pollux.denx.de (pollux [192.168.1.1]) by mail.denx.de (Postfix) with ESMTP id C88F84251D09; Tue, 7 Apr 2009 10:22:31 +0200 (CEST) Received: by pollux.denx.de (Postfix, from userid 504) id BF6F710117B80; Tue, 7 Apr 2009 10:22:31 +0200 (CEST) Message-Id: <20090407082231.646648985@denx.de> User-Agent: quilt/0.47-1 Date: Tue, 07 Apr 2009 10:20:56 +0200 From: Wolfgang Grandegger To: linux-i2c@vger.kernel.org Subject: [PATCH v3 4/5] powerpc: i2c-mpc: document new FSL I2C bindings and cleanup References: <20090407082052.477328750@denx.de> Content-Disposition: inline; filename=i2c-mpc-dts-bindings.patch Cc: devicetree-discuss@ozlabs.org, linuxppc-dev@ozlabs.org, Ben Dooks X-BeenThere: linuxppc-dev@ozlabs.org X-Mailman-Version: 2.1.11 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@ozlabs.org Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@ozlabs.org This patch documents the new bindings for the MPC I2C bus driver. Furthermore, it removes obsolete FSL device related definitions for I2C. It should go through the appropriate PowerPC maintainer(s) hands. Signed-off-by: Wolfgang Grandegger Acked-by: Grant Likely --- Documentation/powerpc/dts-bindings/fsl/i2c.txt | 46 ++++++++++++++++--------- include/linux/fsl_devices.h | 4 -- 2 files changed, 31 insertions(+), 19 deletions(-) Index: linux-2.6-galak/Documentation/powerpc/dts-bindings/fsl/i2c.txt =================================================================== --- linux-2.6-galak.orig/Documentation/powerpc/dts-bindings/fsl/i2c.txt 2009-04-07 10:09:08.185721241 +0200 +++ linux-2.6-galak/Documentation/powerpc/dts-bindings/fsl/i2c.txt 2009-04-07 10:09:15.413719535 +0200 @@ -7,8 +7,10 @@ Recommended properties : - - compatible : Should be "fsl-i2c" for parts compatible with - Freescale I2C specifications. + - compatible : compatibility list with 2 entries, the first should + be "fsl,CHIP-i2c" where CHIP is the name of a compatible processor, + e.g. mpc8313, mpc8543, mpc8544, mpc5200 or mpc5200b. The second one + should be "fsl-i2c". - interrupts : where a is the interrupt number and b is a field that represents an encoding of the sense and level information for the interrupt. This should be encoded based on @@ -16,17 +18,31 @@ controller you have. - interrupt-parent : the phandle for the interrupt controller that services interrupts for this device. - - dfsrr : boolean; if defined, indicates that this I2C device has - a digital filter sampling rate register - - fsl5200-clocking : boolean; if defined, indicated that this device - uses the FSL 5200 clocking mechanism. - -Example : - i2c@3000 { - interrupt-parent = <40000>; - interrupts = <1b 3>; - reg = <3000 18>; - device_type = "i2c"; - compatible = "fsl-i2c"; - dfsrr; + - fsl,preserve-clocking : boolean; if defined, the clock settings + from the bootloader are preserved (not touched). + - clock-frequency : desired I2C bus clock frequency in Hz. + +Examples : + + i2c@3d00 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "fsl,mpc5200b-i2c","fsl,mpc5200-i2c","fsl-i2c"; + cell-index = <0>; + reg = <0x3d00 0x40>; + interrupts = <2 15 0>; + interrupt-parent = <&mpc5200_pic>; + fsl,preserve-clocking; }; + + i2c@3100 { + #address-cells = <1>; + #size-cells = <0>; + cell-index = <1>; + compatible = "fsl,mpc8544-i2c", "fsl-i2c"; + reg = <0x3100 0x100>; + interrupts = <43 2>; + interrupt-parent = <&mpic>; + clock-frequency = <400000>; + }; + Index: linux-2.6-galak/include/linux/fsl_devices.h =================================================================== --- linux-2.6-galak.orig/include/linux/fsl_devices.h 2009-04-07 10:09:08.185721241 +0200 +++ linux-2.6-galak/include/linux/fsl_devices.h 2009-04-07 10:09:15.414719119 +0200 @@ -43,10 +43,6 @@ * */ -/* Flags related to I2C device features */ -#define FSL_I2C_DEV_SEPARATE_DFSRR 0x00000001 -#define FSL_I2C_DEV_CLOCK_5200 0x00000002 - enum fsl_usb2_operating_modes { FSL_USB2_MPH_HOST, FSL_USB2_DR_HOST,