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[v4,14/28] soc: fsl: cpm1: qmc: Add support for disabling channel TSA entries

Message ID 4b18bc5b006c1a30337fb2194a2c62793ee128db.1692376361.git.christophe.leroy@csgroup.eu
State New
Headers show
Series Add support for QMC HDLC, framer infrastruture and PEF2256 framer (v4) | expand

Commit Message

Christophe Leroy Aug. 18, 2023, 4:39 p.m. UTC 
From: Herve Codina <herve.codina@bootlin.com>

In order to allow runtime timeslot route changes, disabling channel TSA
entries needs to be supported.

Add support for this new feature.

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
---
 drivers/soc/fsl/qe/qmc.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)
diff mbox series

Patch

diff --git a/drivers/soc/fsl/qe/qmc.c b/drivers/soc/fsl/qe/qmc.c
index 07fa3c265858..90e6fffddab3 100644
--- a/drivers/soc/fsl/qe/qmc.c
+++ b/drivers/soc/fsl/qe/qmc.c
@@ -567,7 +567,8 @@  static void qmc_chan_read_done(struct qmc_chan *chan)
 	spin_unlock_irqrestore(&chan->rx_lock, flags);
 }
 
-static int qmc_chan_setup_tsa_64rxtx(struct qmc_chan *chan, const struct tsa_serial_info *info)
+static int qmc_chan_setup_tsa_64rxtx(struct qmc_chan *chan, const struct tsa_serial_info *info,
+				     bool enable)
 {
 	unsigned int i;
 	u16 curr;
@@ -603,13 +604,14 @@  static int qmc_chan_setup_tsa_64rxtx(struct qmc_chan *chan, const struct tsa_ser
 			continue;
 
 		qmc_clrsetbits16(chan->qmc->scc_pram + QMC_GBL_TSATRX + (i * 2),
-				 ~QMC_TSA_WRAP, val);
+				 ~QMC_TSA_WRAP, enable ? val : 0x0000);
 	}
 
 	return 0;
 }
 
-static int qmc_chan_setup_tsa_32rx_32tx(struct qmc_chan *chan, const struct tsa_serial_info *info)
+static int qmc_chan_setup_tsa_32rx_32tx(struct qmc_chan *chan, const struct tsa_serial_info *info,
+					bool enable)
 {
 	unsigned int i;
 	u16 curr;
@@ -650,7 +652,7 @@  static int qmc_chan_setup_tsa_32rx_32tx(struct qmc_chan *chan, const struct tsa_
 			continue;
 
 		qmc_clrsetbits16(chan->qmc->scc_pram + QMC_GBL_TSATRX + (i * 2),
-				 ~QMC_TSA_WRAP, val);
+				 ~QMC_TSA_WRAP, enable ? val : 0x0000);
 	}
 	/* Set entries based on Tx stuff */
 	for (i = 0; i < info->nb_tx_ts; i++) {
@@ -658,13 +660,13 @@  static int qmc_chan_setup_tsa_32rx_32tx(struct qmc_chan *chan, const struct tsa_
 			continue;
 
 		qmc_clrsetbits16(chan->qmc->scc_pram + QMC_GBL_TSATTX + (i * 2),
-				 ~QMC_TSA_WRAP, val);
+				 ~QMC_TSA_WRAP, enable ? val : 0x0000);
 	}
 
 	return 0;
 }
 
-static int qmc_chan_setup_tsa(struct qmc_chan *chan)
+static int qmc_chan_setup_tsa(struct qmc_chan *chan, bool enable)
 {
 	struct tsa_serial_info info;
 	int ret;
@@ -679,8 +681,8 @@  static int qmc_chan_setup_tsa(struct qmc_chan *chan)
 	 * and one for Tx) according to assigned TS numbers.
 	 */
 	return ((info.nb_tx_ts > 32) || (info.nb_rx_ts > 32)) ?
-		qmc_chan_setup_tsa_64rxtx(chan, &info) :
-		qmc_chan_setup_tsa_32rx_32tx(chan, &info);
+		qmc_chan_setup_tsa_64rxtx(chan, &info, enable) :
+		qmc_chan_setup_tsa_32rx_32tx(chan, &info, enable);
 }
 
 static int qmc_chan_command(struct qmc_chan *chan, u8 qmc_opcode)
@@ -1146,7 +1148,7 @@  static int qmc_setup_chan(struct qmc *qmc, struct qmc_chan *chan)
 
 	chan->qmc = qmc;
 
-	ret = qmc_chan_setup_tsa(chan);
+	ret = qmc_chan_setup_tsa(chan, true);
 	if (ret)
 		return ret;