Re: [PATCH net-next v2 10/12] net: stmmac: dwmac-qcom-ethqos: Respect phy-mode and TX delay

From: Jakub Kicinski
Date: Mon Mar 20 2023 - 23:30:00 EST


On Mon, 20 Mar 2023 17:16:15 -0500 Andrew Halaney wrote:
> static int ethqos_rgmii_macro_init(struct qcom_ethqos *ethqos)
> {
> + int phy_mode;
> + int phase_shift;

nit: invert the order, we like variable declaration lines longest
to shortest

> + /* Determine if the PHY adds a 2 ns TX delay or the MAC handles it */
> + phy_mode = device_get_phy_mode(&ethqos->pdev->dev);
> + if (phy_mode == PHY_INTERFACE_MODE_RGMII_ID || phy_mode == PHY_INTERFACE_MODE_RGMII_TXID)

Let's try to stick to 80 chars where reasonable, this would be easier
to read as 2 lines.

> + phase_shift = 0;
> + else
> + phase_shift = RGMII_CONFIG2_TX_CLK_PHASE_SHIFT_EN;
> +
> /* Disable loopback mode */
> rgmii_updatel(ethqos, RGMII_CONFIG2_TX_TO_RX_LOOPBACK_EN,
> 0, RGMII_IO_MACRO_CONFIG2);
> @@ -300,9 +310,9 @@ static int ethqos_rgmii_macro_init(struct qcom_ethqos *ethqos)
> RGMII_CONFIG_PROG_SWAP, RGMII_IO_MACRO_CONFIG);
> rgmii_updatel(ethqos, RGMII_CONFIG2_DATA_DIVIDE_CLK_SEL,
> 0, RGMII_IO_MACRO_CONFIG2);
> +
> rgmii_updatel(ethqos, RGMII_CONFIG2_TX_CLK_PHASE_SHIFT_EN,
> - RGMII_CONFIG2_TX_CLK_PHASE_SHIFT_EN,
> - RGMII_IO_MACRO_CONFIG2);
> + phase_shift, RGMII_IO_MACRO_CONFIG2);

here and in couple more places looks like indentation got broken?
continuation line should start under the opening bracket + 1.