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56 lines
2.3 KiB
Diff
56 lines
2.3 KiB
Diff
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From 436f7ecdcc08f71ddc106b7bbe3bcbf1785f3bff Mon Sep 17 00:00:00 2001
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From: Chen-Yu Tsai <wens@csie.org>
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Date: Fri, 17 Jan 2014 21:24:45 +0800
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Subject: [PATCH] net: stmmac: Deprecate snps, phy-addr and auto-detect PHY
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address
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The snps,phy-addr device tree property is non-standard, and should be
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removed in favor of proper phy node support. Remove it from the binding
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documents and warn if the property is still used.
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Most PHYs respond to address 0, but a few don't, so auto-detect PHY
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address by default, to make up for the lack of explicit address selection.
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Signed-off-by: Chen-Yu Tsai <wens@csie.org>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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Documentation/devicetree/bindings/net/stmmac.txt | 1 -
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drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 9 ++++++++-
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2 files changed, 8 insertions(+), 2 deletions(-)
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diff --git a/Documentation/devicetree/bindings/net/stmmac.txt b/Documentation/devicetree/bindings/net/stmmac.txt
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index d132513..aefb639 100644
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--- a/Documentation/devicetree/bindings/net/stmmac.txt
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+++ b/Documentation/devicetree/bindings/net/stmmac.txt
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@@ -12,7 +12,6 @@ Required properties:
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property
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- phy-mode: String, operation mode of the PHY interface.
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Supported values are: "mii", "rmii", "gmii", "rgmii".
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-- snps,phy-addr phy address to connect to.
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- snps,reset-gpio gpio number for phy reset.
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- snps,reset-active-low boolean flag to indicate if phy reset is active low.
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- snps,reset-delays-us is triplet of delays
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diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
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index 634260e..82110f1 100644
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--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
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+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
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@@ -50,7 +50,14 @@ static int stmmac_probe_config_dt(struct platform_device *pdev,
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if (plat->bus_id < 0)
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plat->bus_id = 0;
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- of_property_read_u32(np, "snps,phy-addr", &plat->phy_addr);
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+ /* Default to phy auto-detection */
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+ plat->phy_addr = -1;
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+
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+ /* "snps,phy-addr" is not a standard property. Mark it as deprecated
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+ * and warn of its use. Remove this when phy node support is added.
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+ */
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+ if (of_property_read_u32(np, "snps,phy-addr", &plat->phy_addr) == 0)
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+ dev_warn(&pdev->dev, "snps,phy-addr property is deprecated\n");
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plat->mdio_bus_data = devm_kzalloc(&pdev->dev,
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sizeof(struct stmmac_mdio_bus_data),
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--
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1.8.5.5
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