On Wed, Jan 21, 2026 at 12:05:30PM +0000, Russell King (Oracle) wrote:

On Wed, Jan 21, 2026 at 03:13:11PM +0800, Inochi Amaoto wrote:

quoted

+	mask = RGMII_RX_DLINE_STEP | RGMII_TX_DLINE_CODE | RGMII_TX_DLINE_EN |
+	       RGMII_TX_DLINE_STEP | RGMII_RX_DLINE_CODE | RGMII_RX_DLINE_EN;
+	val = FIELD_PREP(RGMII_TX_DLINE_STEP, tx_config) |
+	      FIELD_PREP(RGMII_TX_DLINE_CODE, tx_code) | RGMII_TX_DLINE_EN |
+	      FIELD_PREP(RGMII_RX_DLINE_STEP, rx_config) |
+	      FIELD_PREP(RGMII_RX_DLINE_CODE, rx_code) | RGMII_RX_DLINE_EN;

So your reply where you basically stated that all the RGMII.*DLINE.*
constants here should be the same was nonsense. How can we trust your
replies?

Sorry, I have found there is a mistake for replying you.
Now I give a detailed description about this registers.
You can check it at 
https://lore.kernel.org/netdev/aXFnmXIwSdKCS9Uc@inochi.infowork/ (local)

Regards,
Inochi

quoted

+static int spacemit_dwmac_fix_delay(struct plat_stmmacenet_data *plat_dat,
+				    struct regmap *apmu,
+				    unsigned int dline_offset,
+				    unsigned int tx_delay, unsigned int rx_delay)
+{
+	bool mac_rxid = rx_delay != 0;
+	bool mac_txid = tx_delay != 0;
+	unsigned int rx_config = 0;
+	unsigned int tx_config = 0;
+	int rx_code;
+	int tx_code;
+
+	plat_dat->phy_interface = phy_fix_phy_mode_for_mac_delays(plat_dat->phy_interface,
+								  mac_txid,
+								  mac_rxid);

Maybe Andrew can confirm, but this function was to fix up existing
broken DT, and shouldn't be used by brand new drivers.

quoted

+	plat_dat->clk_tx_i = devm_clk_get_enabled(&pdev->dev, "tx");
+	if (IS_ERR(plat_dat->clk_tx_i))
+		return dev_err_probe(&pdev->dev, PTR_ERR(plat_dat->clk_tx_i),
+				     "failed to get tx clock\n");

As stated on the previous series, please don't abuse clk_tx_i for
soemthing that isn't the dwmac's clk_tx_i signal.

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