[PATCH 06/26] soc: fsl: cpm1: qmc: Introduce available timeslots masks

Herve Codina
2023-07-25T09:26:03Z

Available timeslots masks define timeslots available for the related
channel. These timeslots are defined by the QMC binding.

Timeslots used are initialized to available timeslots but can be a
subset of available timeslots.
This prepares the dynamic timeslots management (ie. changing timeslots
at runtime).

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
---
drivers/soc/fsl/qe/qmc.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/fsl/qe/qmc.c b/drivers/soc/fsl/qe/qmc.c
index 1c7853a20ef9..a30cff7d325a 100644
--- a/drivers/soc/fsl/qe/qmc.c
+++ b/drivers/soc/fsl/qe/qmc.c
@@ -177,7 +177,9 @@ struct qmc_chan {
struct qmc *qmc;
void *__iomem s_param;
enum qmc_mode mode;
+ u64 tx_ts_mask_avail;
u64 tx_ts_mask;
+ u64 rx_ts_mask_avail;
u64 rx_ts_mask;
bool is_reverse_data;

@@ -875,7 +877,8 @@ static int qmc_of_parse_chans(struct qmc *qmc, struct device_node *np)
of_node_put(chan_np);
return ret;
}
- chan->tx_ts_mask = ts_mask;
+ chan->tx_ts_mask_avail = ts_mask;
+ chan->tx_ts_mask = chan->tx_ts_mask_avail;

ret = of_property_read_u64(chan_np, "fsl,rx-ts-mask", &ts_mask);
if (ret) {
@@ -884,7 +887,8 @@ static int qmc_of_parse_chans(struct qmc *qmc, struct device_node *np)
of_node_put(chan_np);
return ret;
}
- chan->rx_ts_mask = ts_mask;
+ chan->rx_ts_mask_avail = ts_mask;
+ chan->rx_ts_mask = chan->rx_ts_mask_avail;

mode = "transparent";
ret = of_property_read_string(chan_np, "fsl,operational-mode", &mode);
--
2.41.0