On Thu, Dec 15, 2016 at 12:25:08AM +0530, Manish Narani wrote:
> This patch will add support for OTG host initialization. This will
> help OTG drivers to populate their host subsystem.
>
> Signed-off-by: Manish Narani <mnar...@xilinx.com>
> ---
> drivers/usb/host/xhci-plat.c | 35 +++++++++++++++++++++++++++++++++++
> 1 files changed, 35 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
> index ddfab30..b4cadbd 100644
> --- a/drivers/usb/host/xhci-plat.c
> +++ b/drivers/usb/host/xhci-plat.c
> @@ -20,6 +20,10 @@
> #include <linux/slab.h>
> #include <linux/acpi.h>
>
> +#ifdef CONFIG_USB_OTG
> +#include <linux/usb/otg.h>
> +#endif
never use a #ifdef in a .c file if at all possible. Here you don't need
it at all.
> +
> #include "xhci.h"
> #include "xhci-plat.h"
> #include "xhci-mvebu.h"
> @@ -255,6 +259,24 @@ static int xhci_plat_probe(struct platform_device *pdev)
> if (ret)
> goto dealloc_usb2_hcd;
>
> +#ifdef CONFIG_USB_OTG
> + hcd->usb_phy = usb_get_phy(USB_PHY_TYPE_USB3);
> + if (!IS_ERR_OR_NULL(hcd->usb_phy) && hcd->usb_phy->otg) {
> + dev_dbg(&pdev->dev, "%s otg support available\n", __func__);
> + ret = otg_set_host(hcd->usb_phy->otg, &hcd->self);
> + if (ret) {
> + dev_err(&pdev->dev, "%s otg_set_host failed\n",
> + __func__);
> + usb_put_phy(hcd->usb_phy);
> + hcd->usb_phy = NULL;
> + goto dealloc_usb2_hcd;
> + }
> + } else {
> + usb_put_phy(hcd->usb_phy);
> + hcd->usb_phy = NULL;
> + }
> +#endif
Can't you wrap this in a function to get rid of this #ifdef mess?
> +
> return 0;
>
>
> @@ -283,6 +305,19 @@ static int xhci_plat_remove(struct platform_device *dev)
> struct xhci_hcd *xhci = hcd_to_xhci(hcd);
> struct clk *clk = xhci->clk;
>
> +#ifdef CONFIG_USB_OTG
> + if (hcd->usb_phy) {
> + if (!IS_ERR(hcd->usb_phy)) {
> + if (hcd->usb_phy->otg)
> + otg_set_host(hcd->usb_phy->otg, NULL);
> + usb_put_phy(hcd->usb_phy);
> + }
> + hcd->usb_phy = NULL;
> + if (xhci->shared_hcd)
> + xhci->shared_hcd->usb_phy = NULL;
> + }
> +#endif
same here.
thanks,
greg k-h
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