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| author |   Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2022-10-27 14:10:52 +0100 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2022-10-28 21:48:30 -0700 |
| commit | c000dca098002da193b98099df051c9ead0cacb4 (patch) | |
| tree | fa29b4fac8aed47699bd97757fd4b26fedd5382c | |
| parent | net: mtk_eth_soc: eliminate unnecessary error handling (diff) | |
| download | wireguard-linux-c000dca098002da193b98099df051c9ead0cacb4.tar.xz wireguard-linux-c000dca098002da193b98099df051c9ead0cacb4.zip | |
net: mtk_eth_soc: add pcs_get_state() implementation
Add a pcs_get_state() implementation which uses the advertisements
to compute the resulting link modes, and BMSR contents to determine
negotiation and link status.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/mediatek/mtk_sgmii.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mediatek/mtk_sgmii.c b/drivers/net/ethernet/mediatek/mtk_sgmii.c index 7637ba16b44b..63785bd9a118 100644 --- a/drivers/net/ethernet/mediatek/mtk_sgmii.c +++ b/drivers/net/ethernet/mediatek/mtk_sgmii.c @@ -19,6 +19,20 @@ static struct mtk_pcs *pcs_to_mtk_pcs(struct phylink_pcs *pcs) return container_of(pcs, struct mtk_pcs, pcs); } +static void mtk_pcs_get_state(struct phylink_pcs *pcs, + struct phylink_link_state *state) +{ + struct mtk_pcs *mpcs = pcs_to_mtk_pcs(pcs); + unsigned int bm, adv; + + /* Read the BMSR and LPA */ + regmap_read(mpcs->regmap, SGMSYS_PCS_CONTROL_1, &bm); + regmap_read(mpcs->regmap, SGMSYS_PCS_ADVERTISE, &adv); + + phylink_mii_c22_pcs_decode_state(state, FIELD_GET(SGMII_BMSR, bm), + FIELD_GET(SGMII_LPA, adv)); +} + /* For SGMII interface mode */ static void mtk_pcs_setup_mode_an(struct mtk_pcs *mpcs) { @@ -117,6 +131,7 @@ static void mtk_pcs_link_up(struct phylink_pcs *pcs, unsigned int mode, } static const struct phylink_pcs_ops mtk_pcs_ops = { + .pcs_get_state = mtk_pcs_get_state, .pcs_config = mtk_pcs_config, .pcs_an_restart = mtk_pcs_restart_an, .pcs_link_up = mtk_pcs_link_up, |