Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit f3eec0cf authored by Andrew Goodbody's avatar Andrew Goodbody Committed by Greg Kroah-Hartman
Browse files

usb: musb: Ensure rx reinit occurs for shared_fifo endpoints 



shared_fifo endpoints would only get a previous tx state cleared
out, the rx state was only cleared for non shared_fifo endpoints
Change this so that the rx state is cleared for all endpoints.
This addresses an issue that resulted in rx packets being dropped
silently.

Signed-off-by: default avatarAndrew Goodbody <andrew.goodbody@cambrionix.com>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarBin Liu <b-liu@ti.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 04471eb8

drivers/usb/musb/musb_host.c

+6 −7
Original line number Diff line number Diff line
@@ -600,14 +600,13 @@ musb_rx_reinit(struct musb *musb, struct musb_qh *qh, u8 epnum) 
		musb_writew(ep->regs, MUSB_TXCSR, 0);



	/* scrub all previous state, clearing toggle */

	} else {

	}

	csr = musb_readw(ep->regs, MUSB_RXCSR);

	if (csr & MUSB_RXCSR_RXPKTRDY)

		WARNING("rx%d, packet/%d ready?\n", ep->epnum,

			musb_readw(ep->regs, MUSB_RXCOUNT));



	musb_h_flush_rxfifo(ep, MUSB_RXCSR_CLRDATATOG);

	}



	/* target addr and (for multipoint) hub addr/port */

	if (musb->is_multipoint) {