[PATCH net v3 1/8] net: dsa: b53: initialize the jumbo frame size register offset

The chip data specifies both the jumbo port mask and frame size register
offsets, but b53_switch_init() only copies the former into the device.
Since the device is zero-initialized, b53_set_jumbo() writes the frame
size to offset zero instead of the chip-specific size register at 0x05
or 0x08.

Copy jumbo_size_reg from the chip data along with jumbo_pm_reg so frame
size updates reach the intended register.

Fixes: 967dd82ffc52 ("net: dsa: b53: Add support for Broadcom RoboSwitch")
Reviewed-by: Jonas Gorski <jonas.gorski@gmail.com>
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
---
 drivers/net/dsa/b53/b53_common.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index 0880310c9ce3..559d4b360c82 100644
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c

@@ -3109,6 +3109,7 @@ static int b53_switch_init(struct b53_device *dev)
 			dev->vta_regs[1] = chip->vta_regs[1];
 			dev->vta_regs[2] = chip->vta_regs[2];
 			dev->jumbo_pm_reg = chip->jumbo_pm_reg;
+			dev->jumbo_size_reg = chip->jumbo_size_reg;
 			dev->imp_port = chip->imp_port;
 			dev->num_vlans = chip->vlans;
 			dev->num_arl_bins = chip->arl_bins;

-- 
2.53.0