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[05/17] wifi: iwlwifi: pcie: print function scratch before writing

Message ID 20240729201718.737e5f8bb8df.Ia3f3637ac4a0fb4b35ffd652f92eb75de652ee12@changeid (mailing list archive)
State Accepted
Delegated to: Johannes Berg
Headers show
Series wifi: iwlwifi: updates - 29-07-24 | expand

Commit Message

Miri Korenblit July 29, 2024, 5:20 p.m. UTC 
From: Johannes Berg <johannes.berg@intel.com>

We may want to know the value of this register for certain
debug scenarios before we overwrite it, it indicates which
parts of the chip have recently been reset.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c
index 18dda89b7985..8903a5692dfb 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c
@@ -526,6 +526,8 @@  int iwl_trans_pcie_gen2_start_fw(struct iwl_trans *trans,
 	keep_ram_busy = !iwl_pcie_set_ltr(trans);
 
 	if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) {
+		IWL_DEBUG_POWER(trans, "function scratch register value is 0x%08x\n",
+				iwl_read32(trans, CSR_FUNC_SCRATCH));
 		iwl_write32(trans, CSR_FUNC_SCRATCH, CSR_FUNC_SCRATCH_INIT_VALUE);
 		iwl_set_bit(trans, CSR_GP_CNTRL,
 			    CSR_GP_CNTRL_REG_FLAG_ROM_START);