On Monday, July 16, 2012 2:56 PM, Vivek Gautam wrote:
>
> This patch adds support to parse probe data for
> ehci driver for exynos using device tree
>
> Signed-off-by: Thomas Abraham <thomas.abra...@linaro.org>
> Signed-off-by: Abhilash Kesavan <a.kesa...@samsung.com>
> Signed-off-by: Vivek Gautam <gautam.vi...@samsung.com>
Acked-by: Jingoo Han <jg1....@samsung.com>
>
> diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c
> index 13c179f..37d84cf 100644
> --- a/drivers/usb/host/ehci-s5p.c
> +++ b/drivers/usb/host/ehci-s5p.c
> @@ -13,6 +13,7 @@
> */
>
> #include <linux/clk.h>
> +#include <linux/of.h>
> #include <linux/platform_device.h>
> #include <plat/ehci.h>
> #include <plat/usb-phy.h>
> @@ -63,6 +64,8 @@ static const struct hc_driver s5p_ehci_hc_driver = {
> .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
> };
>
> +static u64 ehci_s5p_dma_mask = DMA_BIT_MASK(32);
> +
> static int __devinit s5p_ehci_probe(struct platform_device *pdev)
> {
> struct s5p_ehci_platdata *pdata;
> @@ -79,6 +82,16 @@ static int __devinit s5p_ehci_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 = &ehci_s5p_dma_mask;
> + if (!pdev->dev.coherent_dma_mask)
> + pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
> +
> s5p_ehci = devm_kzalloc(&pdev->dev, sizeof(struct s5p_ehci_hcd),
> GFP_KERNEL);
> if (!s5p_ehci)
> @@ -233,6 +246,14 @@ static const struct dev_pm_ops s5p_ehci_pm_ops = {
> .resume = s5p_ehci_resume,
> };
>
> +#ifdef CONFIG_OF
> +static const struct of_device_id exynos_ehci_match[] = {
> + { .compatible = "samsung,exynos-ehci" },
> + {},
> +};
> +MODULE_DEVICE_TABLE(of, exynos_ehci_match);
> +#endif
> +
> static struct platform_driver s5p_ehci_driver = {
> .probe = s5p_ehci_probe,
> .remove = __devexit_p(s5p_ehci_remove),
> @@ -241,6 +262,7 @@ static struct platform_driver s5p_ehci_driver = {
> .name = "s5p-ehci",
> .owner = THIS_MODULE,
> .pm = &s5p_ehci_pm_ops,
> + .of_match_table = of_match_ptr(exynos_ehci_match),
> }
> };
>
> --
> 1.7.0.4
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