Messages in this thread | | | From | Jingoo Han <> | Subject | Re: [PATCH 1/3 v3] USB: ohci-exynos: Add support for device tree | Date | Mon, 16 Jul 2012 15:38:13 +0900 |
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On Monday, July 16, 2012 2:56 PM, Vivek Gautam wrote: > > This patch adds support to parse probe data for > ohci driver for exynos using device tree. > > Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> > Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> > Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
> > diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c > index 8bcbdb5..fc3091b 100644 > --- a/drivers/usb/host/ohci-exynos.c > +++ b/drivers/usb/host/ohci-exynos.c > @@ -12,6 +12,7 @@ > */ > > #include <linux/clk.h> > +#include <linux/of.h> > #include <linux/platform_device.h> > #include <mach/ohci.h> > #include <plat/usb-phy.h> > @@ -71,6 +72,8 @@ static const struct hc_driver exynos_ohci_hc_driver = { > .start_port_reset = ohci_start_port_reset, > }; > > +static u64 ohci_exynos_dma_mask = DMA_BIT_MASK(32); > + > static int __devinit exynos_ohci_probe(struct platform_device *pdev) > { > struct exynos4_ohci_platdata *pdata; > @@ -87,6 +90,16 @@ static int __devinit exynos_ohci_probe(struct platform_device *pdev) > return -EINVAL; > } > > + /* > + * 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 move to full device tree support this will vanish off. > + */ > + if (!pdev->dev.dma_mask) > + pdev->dev.dma_mask = &ohci_exynos_dma_mask; > + if (!pdev->dev.coherent_dma_mask) > + pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); > + > exynos_ohci = devm_kzalloc(&pdev->dev, sizeof(struct exynos_ohci_hcd), > GFP_KERNEL); > if (!exynos_ohci) > @@ -256,6 +269,14 @@ static const struct dev_pm_ops exynos_ohci_pm_ops = { > .resume = exynos_ohci_resume, > }; > > +#ifdef CONFIG_OF > +static const struct of_device_id exynos_ohci_match[] = { > + { .compatible = "samsung,exynos-ohci" }, > + {}, > +}; > +MODULE_DEVICE_TABLE(of, exynos_ohci_match); > +#endif > + > static struct platform_driver exynos_ohci_driver = { > .probe = exynos_ohci_probe, > .remove = __devexit_p(exynos_ohci_remove), > @@ -264,6 +285,7 @@ static struct platform_driver exynos_ohci_driver = { > .name = "exynos-ohci", > .owner = THIS_MODULE, > .pm = &exynos_ohci_pm_ops, > + .of_match_table = of_match_ptr(exynos_ohci_match), > } > }; > > -- > 1.7.0.4
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