[PATCH net-next 16/30] net: dsa: mt7530: move lowering port 5 RGMII driving to mt7530_setup()

arinc9.unal
2023-05-22T12:17:30Z

From: Arınç ÜNAL <arinc.unal@arinc9.com>

Move lowering Tx driving of rgmii on port 5 to right before lowering of Tx
driving of trgmii on port 6 on mt7530_setup().

This way, the switch should consume less power regardless of port 5 being
used.

Tested-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
---
drivers/net/dsa/mt7530.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index f2c1aa9cf7f7..514e82299537 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -933,10 +933,6 @@ static void mt7530_setup_port5(struct dsa_switch *ds, phy_interface_t interface)
/* P5 RGMII TX Clock Control: delay x */
mt7530_write(priv, MT7530_P5RGMIITXCR,
CSR_RGMII_TXC_CFG(0x10 + tx_delay));
-
- /* reduce P5 RGMII Tx driving, 8mA */
- mt7530_write(priv, MT7530_IO_DRV_CR,
- P5_IO_CLK_DRV(1) | P5_IO_DATA_DRV(1));
}

mt7530_write(priv, MT7530_MHWTRAP, val);
@@ -2209,6 +2205,10 @@ mt7530_setup(struct dsa_switch *ds)

mt7530_pll_setup(priv);

+ /* Lower P5 RGMII Tx driving, 8mA */
+ mt7530_write(priv, MT7530_IO_DRV_CR,
+ P5_IO_CLK_DRV(1) | P5_IO_DATA_DRV(1));
+
/* Lower Tx driving for TRGMII path */
for (i = 0; i < NUM_TRGMII_CTRL; i++)
mt7530_write(priv, MT7530_TRGMII_TD_ODT(i),
--
2.39.2