Commit c3c3e9a7 authored by Mukesh Sisodiya's avatar Mukesh Sisodiya Committed by Luca Coelho
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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: default avatarMukesh Sisodiya <mukesh.sisodiya@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211219132536.55527214f8c9.I1748215ccb3fa20a3491a46a49b12e04eb560ac6@changeid


Signed-off-by: default avatarLuca Coelho <luciano.coelho@intel.com>
parent 0c912045

drivers/net/wireless/intel/iwlwifi/fw/dbg.c

+1 −1
Original line number Diff line number Diff line
@@ -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) {