dm: core: fix introduce uclass_get_device_by_of_path

[J-u-boot.git] / common / usb.c

diff --git a/common/usb.c b/common/usb.c
index 349e838f1d57785dff86eb5e8ee04d682d3841ec..ae9253dfc0edfb681776b986eb871b87993ebf1d 100644 (file)
--- a/common/usb.c
+++ b/common/usb.c
@@ -28,6 +28,7 @@
 #include <common.h>
 #include <command.h>
 #include <dm.h>
+#include <log.h>
 #include <malloc.h>
 #include <memalign.h>
 #include <asm/processor.h>
@@ -37,6 +38,7 @@
 #include <asm/unaligned.h>
 #include <errno.h>
 #include <usb.h>
+#include <linux/delay.h>
 
 #define USB_BUFSIZ     512
 
@@ -47,10 +49,6 @@ char usb_started; /* flag for the started/stopped USB status */
 static struct usb_device usb_dev[USB_MAX_DEVICE];
 static int dev_index;
 
-#ifndef CONFIG_USB_MAX_CONTROLLER_COUNT
-#define CONFIG_USB_MAX_CONTROLLER_COUNT 1
-#endif
-
 /***************************************************************************
  * Init USB Device
  */
@@ -172,6 +170,12 @@ int usb_detect_change(void)
        return change;
 }
 
+/* Lock or unlock async schedule on the controller */
+__weak int usb_lock_async(struct usb_device *dev, int lock)
+{
+       return 0;
+}
+
 /*
  * disables the asynch behaviour of the control message. This is used for data
  * transfers that uses the exclusiv access to the control and bulk messages.
@@ -995,6 +999,17 @@ static int usb_setup_descriptor(struct usb_device *dev, bool do_read)
                err = get_descriptor_len(dev, 64, 8);
                if (err)
                        return err;
+
+               /*
+                * Logitech Unifying Receiver 046d:c52b bcdDevice 12.10 seems
+                * sensitive about the first Get Descriptor request. If there
+                * are any other requests in the same microframe, the device
+                * reports bogus data, first of the descriptor parts is not
+                * sent to the host. Wait over one microframe duration here
+                * (1mS for USB 1.x , 125uS for USB 2.0) to avoid triggering
+                * the issue.
+                */
+               mdelay(1);
        }
 
        dev->epmaxpacketin[0] = dev->descriptor.bMaxPacketSize0;