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Subject[PATCH net-next v2 4/6] net: dsa: qca: ar9331: add ageing time support
Date
This switch provides global ageing time configuration, so let DSA use
it.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
---
drivers/net/dsa/qca/ar9331.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)

diff --git a/drivers/net/dsa/qca/ar9331.c b/drivers/net/dsa/qca/ar9331.c
index a8be099c5700..2abec323ef14 100644
--- a/drivers/net/dsa/qca/ar9331.c
+++ b/drivers/net/dsa/qca/ar9331.c
@@ -1076,6 +1076,25 @@ static void ar9331_sw_port_fast_age(struct dsa_switch *ds, int port)
dev_err(priv->dev, "%s: error: %i\n", __func__, ret);
}

+static int ar9331_sw_set_ageing_time(struct dsa_switch *ds,
+ unsigned int ageing_time)
+{
+ struct ar9331_sw_priv *priv = (struct ar9331_sw_priv *)ds->priv;
+ struct regmap *regmap = priv->regmap;
+ u32 time, val;
+
+ time = DIV_ROUND_UP(ageing_time, AR9331_SW_AT_AGE_TIME_COEF);
+ if (!time)
+ time = 1;
+ else if (time > U16_MAX)
+ time = U16_MAX;
+
+ val = FIELD_PREP(AR9331_SW_AT_AGE_TIME, time) | AR9331_SW_AT_AGE_EN;
+ return regmap_update_bits(regmap, AR9331_SW_REG_ADDR_TABLE_CTRL,
+ AR9331_SW_AT_AGE_EN | AR9331_SW_AT_AGE_TIME,
+ val);
+}
+
static const struct dsa_switch_ops ar9331_sw_ops = {
.get_tag_protocol = ar9331_sw_get_tag_protocol,
.setup = ar9331_sw_setup,
@@ -1091,6 +1110,7 @@ static const struct dsa_switch_ops ar9331_sw_ops = {
.port_fdb_dump = ar9331_sw_port_fdb_dump,
.port_mdb_add = ar9331_sw_port_mdb_add,
.port_mdb_del = ar9331_sw_port_mdb_del,
+ .set_ageing_time = ar9331_sw_set_ageing_time,
};

static irqreturn_t ar9331_sw_irq(int irq, void *data)
@@ -1444,6 +1464,8 @@ static int ar9331_sw_probe(struct mdio_device *mdiodev)
priv->ops = ar9331_sw_ops;
ds->ops = &priv->ops;
dev_set_drvdata(&mdiodev->dev, priv);
+ ds->ageing_time_min = AR9331_SW_AT_AGE_TIME_COEF;
+ ds->ageing_time_max = AR9331_SW_AT_AGE_TIME_COEF * U16_MAX;

for (i = 0; i < ARRAY_SIZE(priv->port); i++) {
struct ar9331_sw_port *port = &priv->port[i];
--
2.30.2
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