From: Luca Coelho <[email protected]>

Some devices with PCI ID 0x2723, which is supposed to be 22260, are
actually not.  So we need to differentiate them by checking the hw_rev
and change the cfg accordingly.

Signed-off-by: Luca Coelho <[email protected]>
---

In v2:

   * Added missing definition of CSR_HW_REV_TYPE_QNJ_B0

drivers/net/wireless/intel/iwlwifi/iwl-csr.h    | 1 +
 drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-csr.h 
b/drivers/net/wireless/intel/iwlwifi/iwl-csr.h
index caa5806acd81..42af421bbc3c 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-csr.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-csr.h
@@ -325,6 +325,7 @@ enum {
 #define CSR_HW_REV_TYPE_7265D          (0x0000210)
 #define CSR_HW_REV_TYPE_NONE           (0x00001F0)
 #define CSR_HW_REV_TYPE_QNJ            (0x0000360)
+#define CSR_HW_REV_TYPE_QNJ_B0         (0x0000364)
 #define CSR_HW_REV_TYPE_HR_CDB         (0x0000340)
 
 /* RF_ID value */
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c 
b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index fc2f98f2d516..633444d2f930 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -3569,6 +3569,8 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev 
*pdev,
                }
        }
 
+       IWL_DEBUG_INFO(trans, "HW REV: 0x%0x\n", trans->hw_rev);
+
        /*
         * 9000-series integrated A-step has a problem with suspend/resume
         * and sometimes even causes the whole platform to get stuck. This
@@ -3603,7 +3605,8 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev 
*pdev,
                }
        } else if (CSR_HW_RF_ID_TYPE_CHIP_ID(trans->hw_rf_id) ==
                   CSR_HW_RF_ID_TYPE_CHIP_ID(CSR_HW_RF_ID_TYPE_HR) &&
-                  trans->cfg != &iwl22260_2ax_cfg) {
+                  (trans->cfg != &iwl22260_2ax_cfg ||
+                   trans->hw_rev == CSR_HW_REV_TYPE_QNJ_B0)) {
                u32 hw_status;
 
                hw_status = iwl_read_prph(trans, UMAG_GEN_HW_STATUS);
-- 
2.20.1

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