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wifi: iwlwifi: Adopt PTP cross timestamps to core changes

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iwlwifi only supports CLOCK_REALTIME timestamps and provides an incomplete
result without system counter values etc.

It also zeros struct system_device_crosststamp, which is already zeroed in
the core and initialized with the clock ID.

Remove the zeroing and reject any request for a clock ID other than REALTIME.

Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Tested-by: Arthur Kiyanovski <akiyano@amazon.com>
Reviewed-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20260529195557.535447186@kernel.org
This commit is contained in:
Thomas Gleixner 2026-05-29 22:00:36 +02:00
parent e3b8d03faa
commit 570cf418bf
2 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/wireless/intel/iwlwifi/mld/ptp.c
View File

@ -250,7 +250,8 @@ iwl_mld_phc_get_crosstimestamp(struct ptp_clock_info *ptp,
/* System (wall) time */
ktime_t sys_time;
memset(xtstamp, 0, sizeof(struct system_device_crosststamp));
if (xtstamp->clock_id != CLOCK_REALTIME)
return -ENOTSUPP;
ret = iwl_mld_get_crosstimestamp_fw(mld, &gp2, &sys_time);
if (ret) {

5
drivers/net/wireless/intel/iwlwifi/mvm/ptp.c
View File

@ -160,13 +160,14 @@ iwl_mvm_phc_get_crosstimestamp(struct ptp_clock_info *ptp,
/* System (wall) time */
ktime_t sys_time;
memset(xtstamp, 0, sizeof(struct system_device_crosststamp));
if (!mvm->ptp_data.ptp_clock) {
IWL_ERR(mvm, "No PHC clock registered\n");
return -ENODEV;
}
if (xtstamp->clock_id != CLOCK_REALTIME)
return -ENOTSUPP;
mutex_lock(&mvm->mutex);
if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SYNCED_TIME)) {
ret = iwl_mvm_get_crosstimestamp_fw(mvm, &gp2, &sys_time);