diff options
Diffstat (limited to 'drivers/usb/gadget/s3c-hsotg.c')
| -rw-r--r-- | drivers/usb/gadget/s3c-hsotg.c | 37 |
1 files changed, 27 insertions, 10 deletions
diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index e1cd0f1adfb9..e97df1d094dd 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -32,6 +32,7 @@ #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> +#include <linux/usb/phy.h> #include <linux/platform_data/s3c-hsotg.h> #include <mach/map.h> @@ -133,7 +134,9 @@ struct s3c_hsotg_ep { * struct s3c_hsotg - driver state. * @dev: The parent device supplied to the probe function * @driver: USB gadget driver - * @plat: The platform specific configuration data. + * @phy: The otg phy transceiver structure for phy control. + * @plat: The platform specific configuration data. This can be removed once + * all SoCs support usb transceiver. * @regs: The memory area mapped for accessing registers. * @irq: The IRQ number we are using * @supplies: Definition of USB power supplies @@ -153,6 +156,7 @@ struct s3c_hsotg_ep { struct s3c_hsotg { struct device *dev; struct usb_gadget_driver *driver; + struct usb_phy *phy; struct s3c_hsotg_plat *plat; spinlock_t lock; @@ -2854,7 +2858,10 @@ static void s3c_hsotg_phy_enable(struct s3c_hsotg *hsotg) struct platform_device *pdev = to_platform_device(hsotg->dev); dev_dbg(hsotg->dev, "pdev 0x%p\n", pdev); - if (hsotg->plat->phy_init) + + if (hsotg->phy) + usb_phy_init(hsotg->phy); + else if (hsotg->plat->phy_init) hsotg->plat->phy_init(pdev, hsotg->plat->phy_type); } @@ -2869,7 +2876,9 @@ static void s3c_hsotg_phy_disable(struct s3c_hsotg *hsotg) { struct platform_device *pdev = to_platform_device(hsotg->dev); - if (hsotg->plat->phy_exit) + if (hsotg->phy) + usb_phy_shutdown(hsotg->phy); + else if (hsotg->plat->phy_exit) hsotg->plat->phy_exit(pdev, hsotg->plat->phy_type); } @@ -3492,6 +3501,7 @@ static void s3c_hsotg_release(struct device *dev) static int s3c_hsotg_probe(struct platform_device *pdev) { struct s3c_hsotg_plat *plat = pdev->dev.platform_data; + struct usb_phy *phy; struct device *dev = &pdev->dev; struct s3c_hsotg_ep *eps; struct s3c_hsotg *hsotg; @@ -3500,20 +3510,27 @@ static int s3c_hsotg_probe(struct platform_device *pdev) int ret; int i; - plat = pdev->dev.platform_data; - if (!plat) { - dev_err(&pdev->dev, "no platform data defined\n"); - return -EINVAL; - } - hsotg = devm_kzalloc(&pdev->dev, sizeof(struct s3c_hsotg), GFP_KERNEL); if (!hsotg) { dev_err(dev, "cannot get memory\n"); return -ENOMEM; } + phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2); + if (IS_ERR_OR_NULL(phy)) { + /* Fallback for pdata */ + plat = pdev->dev.platform_data; + if (!plat) { + dev_err(&pdev->dev, "no platform data or transceiver defined\n"); + return -EPROBE_DEFER; + } else { + hsotg->plat = plat; + } + } else { + hsotg->phy = phy; + } + hsotg->dev = dev; - hsotg->plat = plat; hsotg->clk = devm_clk_get(&pdev->dev, "otg"); if (IS_ERR(hsotg->clk)) { |