usb: renesas_usbhs: fixup comment-out
This patch add/modify comment-out of renesas_usbhs.
On this process, usbhs_pkt_init was moved because it was placed under
usbhsf_null_handler which has no relationship it
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index 665259a..d8239e5 100644
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -21,6 +21,29 @@
#include <linux/sysfs.h>
#include "./common.h"
+/*
+ * image of renesas_usbhs
+ *
+ * ex) gadget case
+
+ * mod.c
+ * mod_gadget.c
+ * mod_host.c pipe.c fifo.c
+ *
+ * +-------+ +-----------+
+ * | pipe0 |------>| fifo pio |
+ * +------------+ +-------+ +-----------+
+ * | mod_gadget |=====> | pipe1 |--+
+ * +------------+ +-------+ | +-----------+
+ * | pipe2 | | +-| fifo dma0 |
+ * +------------+ +-------+ | | +-----------+
+ * | mod_host | | pipe3 |<-|--+
+ * +------------+ +-------+ | +-----------+
+ * | .... | +--->| fifo dma1 |
+ * | .... | +-----------+
+ */
+
+
#define USBHSF_RUNTIME_PWCTRL (1 << 0)
/* status */