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Commit 7b92e1dd authored by Daniel Tang's avatar Daniel Tang Committed by Greg Kroah-Hartman
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usb: chipidea: add support for USB OTG controller on LSI Zevio SoCs 



The USB controller in TI-NSPIRE calculators (LSI Zevio SoC) are based off either
Freescale's USB OTG controller or the USB controller found in the IMX233, both
of which are Chipidea compatible.

This patch adds a device tree binding for the controller.

Signed-off-by: default avatarPeter Chen <peter.chen@freescale.com>
Signed-off-by: default avatarDaniel Tang <dt.tangr@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c844d6c8

drivers/usb/chipidea/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ ci_hdrc-$(CONFIG_USB_CHIPIDEA_DEBUG) += debug.o 
# Glue/Bridge layers go here



obj-$(CONFIG_USB_CHIPIDEA)	+= ci_hdrc_msm.o

obj-$(CONFIG_USB_CHIPIDEA)	+= ci_hdrc_zevio.o



# PCI doesn't provide stubs, need to check

ifneq ($(CONFIG_PCI),)

drivers/usb/chipidea/ci_hdrc_zevio.c

0 → 100644
+72 −0
Original line number Diff line number Diff line 
/*

 *	Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2, as

 * published by the Free Software Foundation.

 *

 * Based off drivers/usb/chipidea/ci_hdrc_msm.c

 *

 */



#include <linux/module.h>

#include <linux/platform_device.h>

#include <linux/usb/gadget.h>

#include <linux/usb/chipidea.h>



#include "ci.h"



static struct ci_hdrc_platform_data ci_hdrc_zevio_platdata = {

	.name			= "ci_hdrc_zevio",

	.flags			= CI_HDRC_REGS_SHARED,

	.capoffset		= DEF_CAPOFFSET,

};



static int ci_hdrc_zevio_probe(struct platform_device *pdev)

{

	struct platform_device *ci_pdev;



	dev_dbg(&pdev->dev, "ci_hdrc_zevio_probe\n");



	ci_pdev = ci_hdrc_add_device(&pdev->dev,

				pdev->resource, pdev->num_resources,

				&ci_hdrc_zevio_platdata);



	if (IS_ERR(ci_pdev)) {

		dev_err(&pdev->dev, "ci_hdrc_add_device failed!\n");

		return PTR_ERR(ci_pdev);

	}



	platform_set_drvdata(pdev, ci_pdev);



	return 0;

}



static int ci_hdrc_zevio_remove(struct platform_device *pdev)

{

	struct platform_device *ci_pdev = platform_get_drvdata(pdev);



	ci_hdrc_remove_device(ci_pdev);



	return 0;

}



static const struct of_device_id ci_hdrc_zevio_dt_ids[] = {

	{ .compatible = "lsi,zevio-usb", },

	{ /* sentinel */ }

};



static struct platform_driver ci_hdrc_zevio_driver = {

	.probe = ci_hdrc_zevio_probe,

	.remove = ci_hdrc_zevio_remove,

	.driver = {

		.name = "zevio_usb",

		.owner = THIS_MODULE,

		.of_match_table = ci_hdrc_zevio_dt_ids,

	},

};



MODULE_DEVICE_TABLE(of, ci_hdrc_zevio_dt_ids);

module_platform_driver(ci_hdrc_zevio_driver);



MODULE_LICENSE("GPL v2");