diff options
| author | Roger Quadros <rogerq@ti.com> | 2013-03-12 14:44:47 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-15 22:51:47 +0400 |
| commit | 5867320dec346c2dc26f224f876d780111ca149d (patch) | |
| tree | 4d42dbbb6c055f9cbf8afb64e745bdb63e9e28ab /drivers/usb | |
| parent | 8c3ec38550a6b880738c8b1982f9207d0fd5a339 (diff) | |
| download | linux-5867320dec346c2dc26f224f876d780111ca149d.tar.xz | |
USB: ohci-omap3: Add device tree support and binding information
Allows the OHCI controller found in OMAP3 and later chips to
be specified via device tree.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/ohci-omap3.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/usb/host/ohci-omap3.c b/drivers/usb/host/ohci-omap3.c index 5ed28c5af759..ddfc31427bc0 100644 --- a/drivers/usb/host/ohci-omap3.c +++ b/drivers/usb/host/ohci-omap3.c @@ -31,6 +31,8 @@ #include <linux/platform_device.h> #include <linux/pm_runtime.h> +#include <linux/of.h> +#include <linux/dma-mapping.h> /*-------------------------------------------------------------------------*/ @@ -112,6 +114,8 @@ static const struct hc_driver ohci_omap3_hc_driver = { /*-------------------------------------------------------------------------*/ +static u64 omap_ohci_dma_mask = DMA_BIT_MASK(32); + /* * configure so an HC device and id are always provided * always called with process context; sleeping is OK @@ -159,6 +163,13 @@ static int ohci_hcd_omap3_probe(struct platform_device *pdev) return -ENOMEM; } + /* + * Right now device-tree probed devices don't get dma_mask set. + * Since shared usb code relies on it, set it here for now. + * Once we have dma capability bindings this can go away. + */ + if (!pdev->dev.dma_mask) + pdev->dev.dma_mask = &omap_ohci_dma_mask; hcd = usb_create_hcd(&ohci_omap3_hc_driver, dev, dev_name(dev)); @@ -228,12 +239,20 @@ static void ohci_hcd_omap3_shutdown(struct platform_device *pdev) hcd->driver->shutdown(hcd); } +static const struct of_device_id omap_ohci_dt_ids[] = { + { .compatible = "ti,ohci-omap3" }, + { } +}; + +MODULE_DEVICE_TABLE(of, omap_ohci_dt_ids); + static struct platform_driver ohci_hcd_omap3_driver = { .probe = ohci_hcd_omap3_probe, .remove = ohci_hcd_omap3_remove, .shutdown = ohci_hcd_omap3_shutdown, .driver = { .name = "ohci-omap3", + .of_match_table = of_match_ptr(omap_ohci_dt_ids), }, }; |