MIPS: Alchemy: use the ehci platform driver

Use the ehci platform driver power_{on,suspend,off} callbacks to perform the
USB block gate enabling/disabling as what the ehci-au1xxx.c driver does.
Update the db1200 and db1300 defconfigs to now select the EHCI platform
driver.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 22 insertions, 1 deletions

diff --git a/arch/mips/alchemy/common/platform.c b/arch/mips/alchemy/common/platform.c
index c0f3ce6dcb56..b9a5f6dd30d6 100644
--- a/arch/mips/alchemy/common/platform.c
+++ b/arch/mips/alchemy/common/platform.c
@@ -17,6 +17,7 @@
 #include <linux/platform_device.h>
 #include <linux/serial_8250.h>
 #include <linux/slab.h>
+#include <linux/usb/ehci_pdriver.h>
 
 #include <asm/mach-au1x00/au1000.h>
 #include <asm/mach-au1x00/au1xxx_dbdma.h>
@@ -122,6 +123,25 @@ static void __init alchemy_setup_uarts(int ctype)
 static u64 alchemy_ohci_dmamask = DMA_BIT_MASK(32);
 static u64 __maybe_unused alchemy_ehci_dmamask = DMA_BIT_MASK(32);
 
+/* Power on callback for the ehci platform driver */
+static int alchemy_ehci_power_on(struct platform_device *pdev)
+{
+        return alchemy_usb_control(ALCHEMY_USB_EHCI0, 1);
+}
+
+/* Power off/suspend callback for the ehci platform driver */
+static void alchemy_ehci_power_off(struct platform_device *pdev)
+{
+        alchemy_usb_control(ALCHEMY_USB_EHCI0, 0);
+}
+
+static struct usb_ehci_pdata alchemy_ehci_pdata = {
+        .no_io_watchdog = 1,
+        .power_on       = alchemy_ehci_power_on,
+        .power_off      = alchemy_ehci_power_off,
+        .power_suspend  = alchemy_ehci_power_off,
+};
+
 static unsigned long alchemy_ohci_data[][2] __initdata = {
         [ALCHEMY_CPU_AU1000] = { AU1000_USB_OHCI_PHYS_ADDR, AU1000_USB_HOST_INT },
         [ALCHEMY_CPU_AU1500] = { AU1000_USB_OHCI_PHYS_ADDR, AU1500_USB_HOST_INT },
@@ -188,9 +208,10 @@ static void __init alchemy_setup_usb(int ctype)
                 res[1].start = alchemy_ehci_data[ctype][1];
                 res[1].end = res[1].start;
                 res[1].flags = IORESOURCE_IRQ;
-                pdev->name = "au1xxx-ehci";
+                pdev->name = "ehci-platform";
                 pdev->id = 0;
                 pdev->dev.dma_mask = &alchemy_ehci_dmamask;
+                pdev->dev.platform_data = &alchemy_ehci_pdata;
 
                 if (platform_device_register(pdev))
                         printk(KERN_INFO "Alchemy USB: cannot add EHCI0\n");