On Mon, Nov 25, 2013 at 02:53:37PM +1100, dt.ta...@gmail.com wrote:
> From: Daniel Tang <dt.ta...@gmail.com>
>
> The USB controller in TI-NSPIRE calculators 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: Daniel Tang <dt.ta...@gmail.com>
> ---
>
> Changelog v3:
> * Removed redundant module aliases
>
> Changelog v2:
> * Rename ci13xxx to ci_hdrc
> * Fixed alignment issues
>
> .../devicetree/bindings/usb/ci-hdrc-nspire.txt | 17 +++++
> drivers/usb/chipidea/Makefile | 1 +
> drivers/usb/chipidea/ci_hdrc_nspire.c | 72
> ++++++++++++++++++++++
> 3 files changed, 90 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/usb/ci-hdrc-nspire.txt
> create mode 100644 drivers/usb/chipidea/ci_hdrc_nspire.c
>
> diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-nspire.txt
> b/Documentation/devicetree/bindings/usb/ci-hdrc-nspire.txt
> new file mode 100644
> index 0000000..5ba8e90
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/ci-hdrc-nspire.txt
> @@ -0,0 +1,17 @@
> +* TI-Nspire USB OTG Controller
> +
> +Required properties:
> +- compatible: Should be "zevio,nspire-usb"
> +- reg: Should contain registers location and length
> +- interrupts: Should contain controller interrupt
> +
> +Recommended properies:
> +- vbus-supply: regulator for vbus
> +
> +Examples:
> + usb0: usb@B0000000 {
> + reg = <0xB0000000 0x1000>;
> + compatible = "zevio,nspire-usb";
> + interrupts = <8>;
> + vbus-supply = <&vbus_reg>;
> + };
> diff --git a/drivers/usb/chipidea/Makefile b/drivers/usb/chipidea/Makefile
> index a99d980..245ea4d 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-$(CONFIG_USB_CHIPIDEA) += ci_hdrc_nspire.o
>
> # PCI doesn't provide stubs, need to check
> ifneq ($(CONFIG_PCI),)
> diff --git a/drivers/usb/chipidea/ci_hdrc_nspire.c
> b/drivers/usb/chipidea/ci_hdrc_nspire.c
> new file mode 100644
> index 0000000..517ce41
> --- /dev/null
> +++ b/drivers/usb/chipidea/ci_hdrc_nspire.c
> @@ -0,0 +1,72 @@
> +/*
> + * Copyright (C) 2013 Daniel Tang <tan...@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_nspire_platdata = {
> + .name = "ci_hdrc_nspire",
> + .flags = CI_HDRC_REGS_SHARED,
> + .capoffset = DEF_CAPOFFSET,
> +};
> +
> +static int ci_hdrc_nspire_probe(struct platform_device *pdev)
> +{
> + struct platform_device *ci_pdev;
> +
> + dev_dbg(&pdev->dev, "ci_hdrc_nspire_probe\n");
> +
> + ci_pdev = ci_hdrc_add_device(&pdev->dev,
> + pdev->resource, pdev->num_resources,
> + &ci_hdrc_nspire_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_nspire_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_nspire_dt_ids[] = {
> + { .compatible = "zevio,nspire-usb", },
> + { /* sentinel */ }
> +};
> +
> +static struct platform_driver ci_hdrc_nspire_driver = {
> + .probe = ci_hdrc_nspire_probe,
> + .remove = ci_hdrc_nspire_remove,
> + .driver = {
> + .name = "nspire_usb",
> + .owner = THIS_MODULE,
> + .of_match_table = ci_hdrc_nspire_dt_ids,
> + },
> +};
> +
> +MODULE_DEVICE_TABLE(of, ci_hdrc_nspire_dt_ids);
> +module_platform_driver(ci_hdrc_nspire_driver);
> +
> +MODULE_LICENSE("GPL v2");
> --
> 1.8.1.3
>
>
Applied, Thanks.
--
Best Regards,
Peter Chen
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