diff mbox series

[v6,17/30] soc: fsl: cpm1: qmc: Add support for disabling channel TSA entries

Message ID 20230922075913.422435-18-herve.codina@bootlin.com (mailing list archive)
State Superseded
Headers show
Series Add support for QMC HDLC, framer infrastructure and PEF2256 framer | expand

Checks

Context Check Description
netdev/series_format fail Series longer than 15 patches (and no cover letter)
netdev/tree_selection success Guessed tree name to be net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 9 this patch: 9
netdev/cc_maintainers success CCed 5 of 5 maintainers
netdev/build_clang success Errors and warnings before: 9 this patch: 9
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 9 this patch: 9
netdev/checkpatch warning WARNING: line length of 95 exceeds 80 columns WARNING: line length of 98 exceeds 80 columns
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Herve Codina Sept. 22, 2023, 7:58 a.m. UTC 
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>
---
 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 269d10cd3c7a..26cd7e1ccafc 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;