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) {