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   1 From 3f9b09ccf7d5f23066b02881a737bee42def9d1a Mon Sep 17 00:00:00 2001
   2 From: Baochen Qiang <quic_bqiang@quicinc.com>
   3 Date: Mon, 10 Oct 2022 11:32:37 +0800
   4 Subject: [PATCH 9/9] wifi: ath11k: Send PME message during wakeup from D3cold
   5
   6 We are seeing system stuck on some specific platforms due to
   7 WLAN chip fails to wakeup from D3cold state.
   8
   9 With this flag, firmware will send PME message during wakeup
  10 and this issue is gone.
  11
  12 Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3
  13
  14 Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
  15 Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
  16 Link: https://lore.kernel.org/r/20221010033237.415478-1-quic_bqiang@quicinc.com
  17 ---
  18  drivers/net/wireless/ath/ath11k/qmi.c | 3 +++
  19  1 file changed, 3 insertions(+)
  20
  21 --- a/drivers/net/wireless/ath/ath11k/qmi.c
  22 +++ b/drivers/net/wireless/ath/ath11k/qmi.c
  23 @@ -19,6 +19,7 @@
  24  #define SLEEP_CLOCK_SELECT_INTERNAL_BIT        0x02
  25  #define HOST_CSTATE_BIT                        0x04
  26  #define PLATFORM_CAP_PCIE_GLOBAL_RESET 0x08
  27 +#define PLATFORM_CAP_PCIE_PME_D3COLD   0x10
  28
  29  #define FW_BUILD_ID_MASK "QC_IMAGE_VERSION_STRING="
  30
  31 @@ -1752,6 +1753,8 @@ static int ath11k_qmi_host_cap_send(stru
  32         if (ab->hw_params.global_reset)
  33                 req.nm_modem |= PLATFORM_CAP_PCIE_GLOBAL_RESET;
  34
  35 +       req.nm_modem |= PLATFORM_CAP_PCIE_PME_D3COLD;
  36 +
  37         ath11k_dbg(ab, ATH11K_DBG_QMI, "qmi host cap request\n");
  38
  39         ret = qmi_txn_init(&ab->qmi.handle, &txn,