package/kernel/mac80211/patches/319-v4.12-0005-brcmfmac-restore-bus-state-when-enter_D3-fails.patch

   1 From 49fe9b59f0e9b750f173fbe44637c436ba1030d2 Mon Sep 17 00:00:00 2001
   2 From: Arend Van Spriel <arend.vanspriel@broadcom.com>
   3 Date: Tue, 28 Mar 2017 11:43:27 +0100
   4 Subject: [PATCH] brcmfmac: restore bus state when enter_D3 fails
   5
   6 In brcmf_pcie_suspend() we inform the firmware on the device that
   7 it will enter in D3 state. Before this is done we already bring down
   8 the bus state. However, When entering D3 fails we abort the suspend
   9 and the bus state need to be restored.
  10
  11 Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
  12 Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
  13 Reviewed-by: Franky Lin <franky.lin@broadcom.com>
  14 Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
  15 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  16 ---
  17  drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c | 1 +
  18  1 file changed, 1 insertion(+)
  19
  20 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
  21 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
  22 @@ -1877,6 +1877,7 @@ static int brcmf_pcie_pm_enter_D3(struct
  23                            BRCMF_PCIE_MBDATA_TIMEOUT);
  24         if (!devinfo->mbdata_completed) {
  25                 brcmf_err("Timeout on response for entering D3 substate\n");
  26 +               brcmf_bus_change_state(bus, BRCMF_BUS_UP);
  27                 return -EIO;
  28         }
  29