octphy: fix build: Revert "octphy: fix for multiple trx with more than 1 dsp"

This reverts commit 06968beab90806cba94c8b331276e4dc209c152b.

Theoretically, this patch makes a lot of sense, but in order to be able to
build osmo-bts-octphy until the headers version is clarified, revert use of
usCentreArfcn:

Above commit uses an usCentreArfcn member that is never defined in the history
of our octphy-2g-headers.git. This usCentreArfcn does exist in a code snapshot
OCTSDR-2G-02.05.00-B780-DEBUG, which is not (yet?) publicly available.

Also, the current headers version is apparently 02.07, though the octasic
version numbers have been known to cause confusion among osmocom folks.

This along with one other revert fixes this build problem:

make[3]: Entering directory '/n/s/octphy/git/osmo-bts/src/osmo-bts-octphy'
  CC       l1_oml.o
l1_oml.c: In function ‘l1if_trx_open’:
l1_oml.c:1350:13: error: ‘tOCTVC1_GSM_TRX_CONFIG’ has no member named ‘usCentreArfcn’
   oc->Config.usCentreArfcn = plink->u.octphy.center_arfcn;
             ^
l1_oml.c:1352:13: error: ‘tOCTVC1_GSM_TRX_CONFIG’ has no member named ‘usCentreArfcn’
   oc->Config.usCentreArfcn = trx->arfcn;
             ^
In file included from ../../include/osmo-bts/logging.h:5:0,
                 from l1_oml.c:33:
l1_oml.c:1365:13: error: ‘tOCTVC1_GSM_TRX_CONFIG’ has no member named ‘usCentreArfcn’
   oc->Config.usCentreArfcn, oc->Config.usTsc, oc->RfConfig.ulRxGainDb,
             ^

Change-Id: I222766f6961f5f35aa3651e2907e3e908fe9a66e

2 files changed, 2 insertions, 10 deletions

diff --git a/include/osmo-bts/phy_link.h b/include/osmo-bts/phy_link.h
index 82e73c8c..ea0fb336 100644
--- a/include/osmo-bts/phy_link.h
+++ b/include/osmo-bts/phy_link.h
@@ -63,8 +63,7 @@ struct phy_link {
 			uint32_t rf_port_index;
 			uint32_t rx_gain_db;
 			uint32_t tx_atten_db;
-			/* arfcn used by TRX with id 0 */
-			uint16_t center_arfcn;
+
 			struct octphy_hdl *hdl;
 		} octphy;
 	} u;
diff --git a/src/osmo-bts-octphy/l1_oml.c b/src/osmo-bts-octphy/l1_oml.c
index c893b044..660fe1c7 100644
--- a/src/osmo-bts-octphy/l1_oml.c
+++ b/src/osmo-bts-octphy/l1_oml.c
@@ -1345,14 +1345,7 @@ int l1if_trx_open(struct gsm_bts_trx *trx)
 	oc->TrxId.byTrxId = pinst->u.octphy.trx_id;
 	oc->Config.ulBand = osmocom_to_octphy_band(trx->bts->band, trx->arfcn);
 	oc->Config.usArfcn = trx->arfcn;
-
-	if (pinst->u.octphy.trx_id)
-		oc->Config.usCentreArfcn = plink->u.octphy.center_arfcn;
-	else {
-		oc->Config.usCentreArfcn = trx->arfcn;
-		plink->u.octphy.center_arfcn = trx->arfcn;
-	}
-
+	oc->Config.usCentreArfcn = trx->bts->c0->arfcn;
 	oc->Config.usTsc = trx->bts->bsic & 0x7;
 	oc->Config.usBcchArfcn = trx->bts->c0->arfcn;
 	oc->RfConfig.ulRxGainDb = plink->u.octphy.rx_gain_db;