Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758353AbaDXQcP (ORCPT ); Thu, 24 Apr 2014 12:32:15 -0400 Received: from smtp.codeaurora.org ([198.145.11.231]:59762 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754038AbaDXQcH (ORCPT ); Thu, 24 Apr 2014 12:32:07 -0400 From: Andy Gross To: linux-kernel@vger.kernel.org Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, Kumar Gala , Santosh Shilimkar , Greg Kroah-Hartman , Andy Gross Subject: [Patch v2 2/4] soc: qcom: Add device tree binding for GSBI Date: Thu, 24 Apr 2014 11:31:20 -0500 Message-Id: <1398357082-5102-3-git-send-email-agross@codeaurora.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1398357082-5102-1-git-send-email-agross@codeaurora.org> References: <1398357082-5102-1-git-send-email-agross@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add device tree binding support for the QCOM GSBI driver. Signed-off-by: Andy Gross --- .../devicetree/bindings/soc/qcom/qcom,gsbi.txt | 78 ++++++++++++++++++++ include/dt-bindings/soc/qcom,gsbi.h | 26 +++++++ 2 files changed, 104 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,gsbi.txt create mode 100644 include/dt-bindings/soc/qcom,gsbi.h diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,gsbi.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,gsbi.txt new file mode 100644 index 0000000..4ce24d4 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,gsbi.txt @@ -0,0 +1,78 @@ +QCOM GSBI (General Serial Bus Interface) Driver + +The GSBI controller is modeled as a node with zero or more child nodes, each +representing a serial sub-node device that is mux'd as part of the GSBI +configuration settings. The mode setting will govern the input/output mode of +the 4 GSBI IOs. + +Required properties: +- compatible: must contain "qcom,gsbi-v1.0.0" for APQ8064/IPQ8064 +- reg: Address range for GSBI registers +- clocks: required clock +- clock-names: must contain "iface" entry +- qcom,mode : indicates MUX value for configuration of the serial interface. + Please reference dt-bindings/soc/qcom,gsbi.h for valid mux values. + +Optional properties: +- qcom,crci : indicates CRCI MUX value for QUP CRCI ports. Please reference + dt-bindings/soc/qcom,gsbi.h for valid CRCI mux values. + +Required properties if child node exists: +- #address-cells: Must be 1 +- #size-cells: Must be 1 +- ranges: Must be present + +Properties for children: + +A GSBI controller node can contain 0 or more child nodes representing serial +devices. These serial devices can be a QCOM UART, I2C controller, spi +controller, or some combination of aforementioned devices. + +See the following for child node definitions: +Documentation/devicetree/bindings/i2c/qcom,i2c-qup.txt +Documentation/devicetree/bindings/spi/qcom,spi-qup.txt +Documentation/devicetree/bindings/serial/qcom,msm-uartdm.txt + +Example for APQ8064: + +#include + + gsbi4@16300000 { + compatible = "qcom,gsbi-v1.0.0"; + reg = <0x16300000 0x100>; + clocks = <&gcc GSBI4_H_CLK>; + clock-names = "iface"; + #address-cells = <1>; + #size-cells = <1>; + ranges; + qcom,mode = ; + qcom,crci = ; + + /* child nodes go under here */ + + i2c_qup4: i2c@16380000 { + compatible = "qcom,i2c-qup-v1.1.1"; + reg = <0x16380000 0x1000>; + interrupts = <0 153 0>; + + clocks = <&gcc GSBI4_QUP_CLK>, <&gcc GSBI4_H_CLK>; + clock-names = "core", "iface"; + + clock-frequency = <200000>; + + #address-cells = <1>; + #size-cells = <0>; + + }; + + uart4: serial@16340000 { + compatible = "qcom,msm-uartdm-v1.3", "qcom,msm-uartdm"; + reg = <0x16340000 0x1000>, + <0x16300000 0x1000>; + interrupts = <0 152 0x0>; + clocks = <&gcc GSBI4_UART_CLK>, <&gcc GSBI4_H_CLK>; + clock-names = "core", "iface"; + status = "ok"; + }; + }; + diff --git a/include/dt-bindings/soc/qcom,gsbi.h b/include/dt-bindings/soc/qcom,gsbi.h new file mode 100644 index 0000000..7ac4292 --- /dev/null +++ b/include/dt-bindings/soc/qcom,gsbi.h @@ -0,0 +1,26 @@ +/* Copyright (c) 2013, The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ +#ifndef __DT_BINDINGS_QCOM_GSBI_H +#define __DT_BINDINGS_QCOM_GSBI_H + +#define GSBI_PROT_IDLE 0 +#define GSBI_PROT_I2C_UIM 1 +#define GSBI_PROT_I2C 2 +#define GSBI_PROT_SPI 3 +#define GSBI_PROT_UART_W_FC 4 +#define GSBI_PROT_UIM 5 +#define GSBI_PROT_I2C_UART 6 + +#define GSBI_CRCI_QUP 0 +#define GSBI_CRCI_UART 1 + +#endif -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/