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Subject[PATCH net-next v6 2/6] dsa: lan9303: move Turbo Mode bit init
Date
In preparing to remove the .adjust_link api, I am moving the one-time
initialization of the device's Turbo Mode bit into a different execution
path. This code clears (disables) the Turbo Mode bit which is never used
by this driver. Turbo Mode is a non-standard mode that would allow the
100Mbps RMII interface to run at 200Mbps.

Signed-off-by: Jerry Ray <jerry.ray@microchip.com>
---
drivers/net/dsa/lan9303-core.c | 15 ++++++---------
1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/net/dsa/lan9303-core.c b/drivers/net/dsa/lan9303-core.c
index 5a21fc96d479..50470fb09cb4 100644
--- a/drivers/net/dsa/lan9303-core.c
+++ b/drivers/net/dsa/lan9303-core.c
@@ -886,6 +886,12 @@ static int lan9303_check_device(struct lan9303 *chip)
return ret;
}

+ /* Virtual Phy: Remove Turbo 200Mbit mode */
+ lan9303_read(chip->regmap, LAN9303_VIRT_SPECIAL_CTRL, &reg);
+
+ reg &= ~LAN9303_VIRT_SPECIAL_TURBO;
+ regmap_write(chip->regmap, LAN9303_VIRT_SPECIAL_CTRL, reg);
+
return 0;
}

@@ -1050,7 +1056,6 @@ static int lan9303_phy_write(struct dsa_switch *ds, int phy, int regnum,
static void lan9303_adjust_link(struct dsa_switch *ds, int port,
struct phy_device *phydev)
{
- struct lan9303 *chip = ds->priv;
int ctl;

if (!phy_is_pseudo_fixed_link(phydev))
@@ -1073,14 +1078,6 @@ static void lan9303_adjust_link(struct dsa_switch *ds, int port,
ctl &= ~BMCR_FULLDPLX;

lan9303_phy_write(ds, port, MII_BMCR, ctl);
-
- if (port == chip->phy_addr_base) {
- /* Virtual Phy: Remove Turbo 200Mbit mode */
- lan9303_read(chip->regmap, LAN9303_VIRT_SPECIAL_CTRL, &ctl);
-
- ctl &= ~LAN9303_VIRT_SPECIAL_TURBO;
- regmap_write(chip->regmap, LAN9303_VIRT_SPECIAL_CTRL, ctl);
- }
}

static int lan9303_port_enable(struct dsa_switch *ds, int port,
--
2.17.1
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