diff options
Diffstat (limited to 'drivers/usb/musb')
| -rw-r--r-- | drivers/usb/musb/Makefile | 3 | ||||
| -rw-r--r-- | drivers/usb/musb/omap2430.c | 84 |
2 files changed, 86 insertions, 1 deletions
diff --git a/drivers/usb/musb/Makefile b/drivers/usb/musb/Makefile index 52d18dbefcfa..4792001a3d06 100644 --- a/drivers/usb/musb/Makefile +++ b/drivers/usb/musb/Makefile @@ -17,10 +17,11 @@ musb_hdrc-$(CONFIG_DEBUG_FS) += musb_debugfs.o musb_hdrc-$(CONFIG_USB_MUSB_DAVINCI) += davinci.o musb_hdrc-$(CONFIG_USB_MUSB_DA8XX) += da8xx.o musb_hdrc-$(CONFIG_USB_MUSB_TUSB6010) += tusb6010.o -musb_hdrc-$(CONFIG_USB_MUSB_OMAP2PLUS) += omap2430.o musb_hdrc-$(CONFIG_USB_MUSB_AM35X) += am35x.o musb_hdrc-$(CONFIG_USB_MUSB_BLACKFIN) += blackfin.o +obj-$(CONFIG_USB_MUSB_OMAP2PLUS) += omap2430.o + # the kconfig must guarantee that only one of the # possible I/O schemes will be enabled at a time ... # PIO only, or DMA (several potential schemes). diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index 5f0d0f105989..78bb1e5cb9f8 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -31,6 +31,8 @@ #include <linux/list.h> #include <linux/clk.h> #include <linux/io.h> +#include <linux/platform_device.h> +#include <linux/dma-mapping.h> #include "musb_core.h" #include "omap2430.h" @@ -341,3 +343,85 @@ const struct musb_platform_ops musb_ops = { .set_vbus = omap2430_musb_set_vbus, }; + +static u64 omap2430_dmamask = DMA_BIT_MASK(32); + +static int __init omap2430_probe(struct platform_device *pdev) +{ + struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data; + struct platform_device *musb; + + int ret = -ENOMEM; + + musb = platform_device_alloc("musb-hdrc", -1); + if (!musb) { + dev_err(&pdev->dev, "failed to allocate musb device\n"); + goto err0; + } + + musb->dev.parent = &pdev->dev; + musb->dev.dma_mask = &omap2430_dmamask; + musb->dev.coherent_dma_mask = omap2430_dmamask; + + platform_set_drvdata(pdev, musb); + + ret = platform_device_add_resources(musb, pdev->resource, + pdev->num_resources); + if (ret) { + dev_err(&pdev->dev, "failed to add resources\n"); + goto err1; + } + + ret = platform_device_add_data(musb, pdata, sizeof(*pdata)); + if (ret) { + dev_err(&pdev->dev, "failed to add platform_data\n"); + goto err1; + } + + ret = platform_device_add(musb); + if (ret) { + dev_err(&pdev->dev, "failed to register musb device\n"); + goto err1; + } + + return 0; + +err1: + platform_device_put(musb); + +err0: + return ret; +} + +static int __exit omap2430_remove(struct platform_device *pdev) +{ + struct platform_device *musb = platform_get_drvdata(pdev); + + platform_device_del(musb); + platform_device_put(musb); + + return 0; +} + +static struct platform_driver omap2430_driver = { + .remove = __exit_p(omap2430_remove), + .driver = { + .name = "musb-omap2430", + }, +}; + +MODULE_DESCRIPTION("OMAP2PLUS MUSB Glue Layer"); +MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); +MODULE_LICENSE("GPL v2"); + +static int __init omap2430_init(void) +{ + return platform_driver_probe(&omap2430_driver, omap2430_probe); +} +subsys_initcall(omap2430_init); + +static void __exit omap2430_exit(void) +{ + platform_driver_unregister(&omap2430_driver); +} +module_exit(omap2430_exit); |
