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@xxxxxxxxxx>
> Signed-off-by: Abhilash Kesavan <a.kesavan@xxxxxxxxxxx>
> Signed-off-by: Vivek Gautam <gautam.vivek@xxxxxxxxxxx>
Acked-by: Jingoo Han <jg1.han@xxxxxxxxxxx>
>
> 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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