iwlwifi: yoyo: fix issue with new DBGI_SRAM region read.

NIC has been grabbed for reading twice which is leading
to NIC hang. Code correction are done for reading data with
no grab function.

Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211219132536.55527214f8c9.I1748215ccb3fa20a3491a46a49b12e04eb560ac6@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index 35af228..7ad9cee 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -1564,7 +1564,7 @@ iwl_dump_ini_dbgi_sram_iter(struct iwl_fw_runtime *fwrt,
        iwl_write_prph_no_grab(fwrt->trans, DBGI_SRAM_TARGET_ACCESS_CFG,
                               DBGI_SRAM_TARGET_ACCESS_CFG_RESET_ADDRESS_MSK);
        for (i = 0; i < (le32_to_cpu(reg->dev_addr.size) / 4); i++) {
-               prph_data = iwl_read_prph(fwrt->trans, (i % 2) ?
+               prph_data = iwl_read_prph_no_grab(fwrt->trans, (i % 2) ?
                                          DBGI_SRAM_TARGET_ACCESS_RDATA_MSB :
                                          DBGI_SRAM_TARGET_ACCESS_RDATA_LSB);
                if (prph_data == 0x5a5a5a5a) {