iwlwifi: mvm: debugfs for phy-integration-ver

Add debugfs file to print the PHY integration version.
File name is: phy_integration_ver
Signed-off-by: Dror Moshe <drorx.moshe@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210117164916.f5127d919656.Ib714f444390b39cbbf7eb143c5440cc890385981@changeidSigned-off-by: Luca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c

@@ -712,6 +712,30 @@ static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf,
 	return ret;
 }
 
+static ssize_t iwl_dbgfs_phy_integration_ver_read(struct file *file,
+						  char __user *user_buf,
+						  size_t count, loff_t *ppos)
+{
+	struct iwl_mvm *mvm = file->private_data;
+	char *buf;
+	size_t bufsz;
+	int pos;
+	ssize_t ret;
+
+	bufsz = mvm->fw->phy_integration_ver_len + 2;
+	buf = kmalloc(bufsz, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	pos = scnprintf(buf, bufsz, "%.*s\n", mvm->fw->phy_integration_ver_len,
+			mvm->fw->phy_integration_ver);
+
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+
+	kfree(buf);
+	return ret;
+}
+
 #define PRINT_STATS_LE32(_struct, _memb)				\
 			 pos += scnprintf(buf + pos, bufsz - pos,	\
 					  fmt_table, #_memb,		\
@@ -1754,6 +1778,7 @@ MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
 MVM_DEBUGFS_READ_FILE_OPS(fw_ver);
+MVM_DEBUGFS_READ_FILE_OPS(phy_integration_ver);
 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
@@ -1966,6 +1991,9 @@ void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
 	MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, 0200);
 	MVM_DEBUGFS_ADD_FILE(inject_beacon_ie, mvm->debugfs_dir, 0200);
 	MVM_DEBUGFS_ADD_FILE(inject_beacon_ie_restore, mvm->debugfs_dir, 0200);
+
+	if (mvm->fw->phy_integration_ver)
+		MVM_DEBUGFS_ADD_FILE(phy_integration_ver, mvm->debugfs_dir, 0400);
 #ifdef CONFIG_ACPI
 	MVM_DEBUGFS_ADD_FILE(sar_geo_profile, dbgfs_dir, 0400);
 #endif