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Commit 1eec34e9 authored by Sebastian Andrzej Siewior's avatar Sebastian Andrzej Siewior Committed by Felipe Balbi
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usb: musb: musb_cppi41: recognize HS devices in hostmode 



There is a poll loop for max 25us for HS devices. Now guess what, I
tested it in gadget mode and forgot about the little detail. Nobody seem
to have it noticed…
This patch adds the missing logic for hostmode so it is recognized in
host and device mode properly.

Fixes: 50aea6fc ("usb: musb: cppi41: fire hrtimer according to
programmed channel length")
Signed-off-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent c2365ce5

drivers/usb/musb/musb_cppi41.c

+9 −1
Original line number Diff line number Diff line
@@ -253,6 +253,7 @@ static void cppi41_dma_callback(void *private_data) 
		cppi41_trans_done(cppi41_channel);

	} else {

		struct cppi41_dma_controller *controller;

		int is_hs = 0;

		/*

		 * On AM335x it has been observed that the TX interrupt fires

		 * too early that means the TXFIFO is not yet empty but the DMA
@@ -265,7 +266,14 @@ static void cppi41_dma_callback(void *private_data) 
		 */

		controller = cppi41_channel->controller;



		if (musb->g.speed == USB_SPEED_HIGH) {

		if (is_host_active(musb)) {

			if (musb->port1_status & USB_PORT_STAT_HIGH_SPEED)

				is_hs = 1;

		} else {

			if (musb->g.speed == USB_SPEED_HIGH)

				is_hs = 1;

		}

		if (is_hs) {

			unsigned wait = 25;



			do {