svn commit: r365400 - head/sys/dev/usb/controller

[Andriy Gapon]

Author: avg
Date: Mon Sep  7 06:48:08 2020
New Revision: 365400
URL: https://svnweb.freebsd.org/changeset/base/365400

Log:
  musb/allwinner: apply register filter in awusbdrd_bs_r_2() as well
  
  Otherwise, I get this panic:
  panic: awusbdrd_reg: Invalid register 0x342
  
  It looks that musb code both writes and reads at least MUSB2_REG_TXDBDIS.
  
  MFC after:	5 weeks
  X-MFC after:	r365399

Modified:
  head/sys/dev/usb/controller/musb_otg_allwinner.c

Modified: head/sys/dev/usb/controller/musb_otg_allwinner.c
==============================================================================
--- head/sys/dev/usb/controller/musb_otg_allwinner.c	Mon Sep  7 06:44:24 2020	(r365399)
+++ head/sys/dev/usb/controller/musb_otg_allwinner.c	Mon Sep  7 06:48:08 2020	(r365400)
@@ -259,6 +259,8 @@ awusbdrd_bs_r_2(awusb_bs_tag t, bus_space_handle_t h, 
 {
 	const struct bus_space *bs = t;
 
+	if (awusbdrd_filt(o) != 0)
+		return (0);
 	return bus_space_read_2(bs_parent_space(bs), h, awusbdrd_reg(o));
 }