diff options
author | Felipe Balbi <balbi@ti.com> | 2010-12-02 07:06:51 (GMT) |
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committer | Felipe Balbi <balbi@ti.com> | 2010-12-10 08:21:13 (GMT) |
commit | ce40c5767a0ea1e77ca5d0b73269cb86301a35cf (patch) | |
tree | a57a74a1a12596f50df2e3ecbe70f5d5253a03cf /drivers/usb/musb/am35x.c | |
parent | dc09886bfa781e2b442301116c18199519e36f0f (diff) | |
download | linux-fsl-qoriq-ce40c5767a0ea1e77ca5d0b73269cb86301a35cf.tar.xz |
usb: musb: split am35x to its own platform_driver
Just adding its own platform_driver, not really
using it yet.
When all HW glue layers are converted, more patches
will come to split power management code from musb_core
and move it completely to HW glue layer.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/musb/am35x.c')
-rw-r--r-- | drivers/usb/musb/am35x.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c index be17610..0ae01f5 100644 --- a/drivers/usb/musb/am35x.c +++ b/drivers/usb/musb/am35x.c @@ -29,6 +29,8 @@ #include <linux/init.h> #include <linux/clk.h> #include <linux/io.h> +#include <linux/platform_device.h> +#include <linux/dma-mapping.h> #include <plat/control.h> #include <plat/usb.h> @@ -535,3 +537,85 @@ const struct musb_platform_ops musb_ops = { .set_vbus = am35x_musb_set_vbus, }; + +static u64 am35x_dmamask = DMA_BIT_MASK(32); + +static int __init am35x_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 = &am35x_dmamask; + musb->dev.coherent_dma_mask = am35x_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 am35x_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 am35x_driver = { + .remove = __exit_p(am35x_remove), + .driver = { + .name = "musb-am35x", + }, +}; + +MODULE_DESCRIPTION("AM35x MUSB Glue Layer"); +MODULE_AUTHOR("Ajay Kumar Gupta <ajay.gupta@ti.com>"); +MODULE_LICENSE("GPL v2"); + +static int __init am35x_init(void) +{ + return platform_driver_probe(&am35x_driver, am35x_probe); +} +subsys_initcall(am35x_init); + +static void __exit am35x_exit(void) +{ + platform_driver_unregister(&am35x_driver); +} +module_exit(am35x_exit); |