releases/4.4.180/usb-dwc3-fix-default-lpm_nyet_threshold-value.patch

   1 From 8d791929b2fbdf7734c1596d808e55cb457f4562 Mon Sep 17 00:00:00 2001
   2 From: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
   3 Date: Thu, 25 Apr 2019 13:55:23 -0700
   4 Subject: usb: dwc3: Fix default lpm_nyet_threshold value
   5
   6 From: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
   7
   8 commit 8d791929b2fbdf7734c1596d808e55cb457f4562 upstream.
   9
  10 The max possible value for DCTL.LPM_NYET_THRES is 15 and not 255. Change
  11 the default value to 15.
  12
  13 Cc: stable@vger.kernel.org
  14 Fixes: 80caf7d21adc ("usb: dwc3: add lpm erratum support")
  15 Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
  16 Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
  17 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  18
  19 ---
  20  drivers/usb/dwc3/core.c |    2 +-
  21  1 file changed, 1 insertion(+), 1 deletion(-)
  22
  23 --- a/drivers/usb/dwc3/core.c
  24 +++ b/drivers/usb/dwc3/core.c
  25 @@ -867,7 +867,7 @@ static int dwc3_probe(struct platform_de
  26         dwc->regs_size  = resource_size(res);
  27
  28         /* default to highest possible threshold */
  29 -       lpm_nyet_threshold = 0xff;
  30 +       lpm_nyet_threshold = 0xf;
  31
  32         /* default to -3.5dB de-emphasis */
  33         tx_de_emphasis = 1;