From 7b92e1ddb17f37caf37d4477483a62a425ba428f Mon Sep 17 00:00:00 2001 From: Daniel Tang Date: Tue, 11 Mar 2014 13:47:39 +0800 Subject: 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: Peter Chen Signed-off-by: Daniel Tang Signed-off-by: Greg Kroah-Hartman --- drivers/usb/chipidea/Makefile | 1 + drivers/usb/chipidea/ci_hdrc_zevio.c | 72 ++++++++++++++++++++++++++++++++++++ 2 files changed, 73 insertions(+) create mode 100644 drivers/usb/chipidea/ci_hdrc_zevio.c (limited to 'drivers/usb') diff --git a/drivers/usb/chipidea/Makefile b/drivers/usb/chipidea/Makefile index 7345d2115af2..480bd4d5710a 100644 --- a/drivers/usb/chipidea/Makefile +++ b/drivers/usb/chipidea/Makefile @@ -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),) diff --git a/drivers/usb/chipidea/ci_hdrc_zevio.c b/drivers/usb/chipidea/ci_hdrc_zevio.c new file mode 100644 index 000000000000..3bf6489ef5ec --- /dev/null +++ b/drivers/usb/chipidea/ci_hdrc_zevio.c @@ -0,0 +1,72 @@ +/* + * Copyright (C) 2013 Daniel Tang + * + * 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 +#include +#include +#include + +#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"); -- cgit v1.2.3