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phy: ti: gmii-sel: Fix register offset when parent is not a syscon node

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[ Upstream commit 0f40d5099c ]

When the node for this phy selector is a child node of a syscon node then the
property 'reg' is used as an offset into the parent regmap. When the node
is standalone and gets its own regmap this offset is pre-applied. So we need
to track which method was used to get the regmap and not apply the offset
in the standalone case.

Fixes: 1fdfa7cccd ("phy: ti: gmii-sel: Allow parent to not be syscon node")
Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Link: https://lore.kernel.org/r/20231025143302.1265633-1-afd@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Andrew Davis 2023-10-25 09:33:02 -05:00 committed by Greg Kroah-Hartman
parent 42db0099ec
commit a7ccc9d900
1 changed files with 4 additions and 1 deletions
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5
drivers/phy/ti/phy-gmii-sel.c
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@ -64,6 +64,7 @@ struct phy_gmii_sel_priv {
u32 num_ports;
u32 reg_offset;
u32 qsgmii_main_ports;
bool no_offset;
};
static int phy_gmii_sel_mode(struct phy *phy, enum phy_mode mode, int submode)
@ -402,7 +403,8 @@ static int phy_gmii_sel_init_ports(struct phy_gmii_sel_priv *priv)
priv->num_ports = size / sizeof(u32);
if (!priv->num_ports)
return -EINVAL;
priv->reg_offset = __be32_to_cpu(*offset);
if (!priv->no_offset)
priv->reg_offset = __be32_to_cpu(*offset);
}
if_phys = devm_kcalloc(dev, priv->num_ports,
@ -471,6 +473,7 @@ static int phy_gmii_sel_probe(struct platform_device *pdev)
dev_err(dev, "Failed to get syscon %d\n", ret);
return ret;
}
priv->no_offset = true;
}
ret = phy_gmii_sel_init_ports(priv);