From c3c3e9a7d0b1a3aadad334e54331bb654004880c Mon Sep 17 00:00:00 2001
From: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Date: Sun, 19 Dec 2021 13:28:36 +0200
Subject: [PATCH] iwlwifi: yoyo: fix issue with new DBGI_SRAM region read.
Git-commit: c3c3e9a7d0b1a3aadad334e54331bb654004880c
Patch-mainline: v5.17-rc1
References: bsc#1202131

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>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/net/wireless/intel/iwlwifi/fw/dbg.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- 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_f
 	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) {