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net: stmmac: dwc-qos: use PHY clock-stop capability 

Use the PHY clock-stop capability when programming the MAC LPI mode,
which allows the transmit clock to the PHY to be gated. Tested on the
Jetson Xavier NX platform.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/E1u4zi1-000xHh-57@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
pull/1112/head
Russell King (Oracle) 2025-04-16 11:09:33 +01:00 committed by Jakub Kicinski
parent 22cbc1ee26
commit 7c6cd70ffd
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c
View File

@ -252,7 +252,8 @@ bypass_clk_reset_gpio:
plat_dat->fix_mac_speed = tegra_eqos_fix_speed;
plat_dat->set_clk_tx_rate = stmmac_set_clk_tx_rate;
plat_dat->bsp_priv = eqos;
plat_dat->flags |= STMMAC_FLAG_SPH_DISABLE;
plat_dat->flags |= STMMAC_FLAG_SPH_DISABLE |
STMMAC_FLAG_EN_TX_LPI_CLK_PHY_CAP;
return 0;