[PATCH v2 6/6] net: dwc: add a common empty ops eqos_null_ops

[Ramon Fried]

On Mon, Apr 26, 2021 at 6:47 PM Patrick Delaunay
<patrick.delaunay at foss.st.com> wrote:
>
> Add a common empty ops: eqos_null_ops() to remove the duplicated empty
> functions and reduce the driver size for stm32 and imx config.
>
> This patch also aligns the prototype of ops 'eqos_stop_clks' with other
> eqos ops by adding return value.
>
> Signed-off-by: Patrick Delaunay <patrick.delaunay at foss.st.com>
> ---
>
> Changes in v2:
> - cleanup ops by adding a common null ops (NEW)
>
>  drivers/net/dwc_eth_qos.c | 97 +++++++++------------------------------
>  1 file changed, 22 insertions(+), 75 deletions(-)
>
> diff --git a/drivers/net/dwc_eth_qos.c b/drivers/net/dwc_eth_qos.c
> index 3fb8bfaf3a..4d1e5d6f8f 100644
> --- a/drivers/net/dwc_eth_qos.c
> +++ b/drivers/net/dwc_eth_qos.c
> @@ -285,7 +285,7 @@ struct eqos_ops {
>         int (*eqos_remove_resources)(struct udevice *dev);
>         int (*eqos_stop_resets)(struct udevice *dev);
>         int (*eqos_start_resets)(struct udevice *dev);
> -       void (*eqos_stop_clks)(struct udevice *dev);
> +       int (*eqos_stop_clks)(struct udevice *dev);
>         int (*eqos_start_clks)(struct udevice *dev);
>         int (*eqos_calibrate_pads)(struct udevice *dev);
>         int (*eqos_disable_calibration)(struct udevice *dev);
> @@ -615,12 +615,7 @@ err:
>  #endif
>  }
>
> -static int eqos_start_clks_imx(struct udevice *dev)
> -{
> -       return 0;
> -}
> -
> -static void eqos_stop_clks_tegra186(struct udevice *dev)
> +static int eqos_stop_clks_tegra186(struct udevice *dev)
>  {
>  #ifdef CONFIG_CLK
>         struct eqos_priv *eqos = dev_get_priv(dev);
> @@ -635,9 +630,10 @@ static void eqos_stop_clks_tegra186(struct udevice *dev)
>  #endif
>
>         debug("%s: OK\n", __func__);
> +       return 0;
>  }
>
> -static void eqos_stop_clks_stm32(struct udevice *dev)
> +static int eqos_stop_clks_stm32(struct udevice *dev)
>  {
>  #ifdef CONFIG_CLK
>         struct eqos_priv *eqos = dev_get_priv(dev);
> @@ -652,11 +648,7 @@ static void eqos_stop_clks_stm32(struct udevice *dev)
>  #endif
>
>         debug("%s: OK\n", __func__);
> -}
> -
> -static void eqos_stop_clks_imx(struct udevice *dev)
> -{
> -       /* empty */
> +       return 0;
>  }
>
>  static int eqos_start_resets_tegra186(struct udevice *dev)
> @@ -698,16 +690,6 @@ static int eqos_start_resets_tegra186(struct udevice *dev)
>         return 0;
>  }
>
> -static int eqos_start_resets_stm32(struct udevice *dev)
> -{
> -       return 0;
> -}
> -
> -static int eqos_start_resets_imx(struct udevice *dev)
> -{
> -       return 0;
> -}
> -
>  static int eqos_stop_resets_tegra186(struct udevice *dev)
>  {
>         struct eqos_priv *eqos = dev_get_priv(dev);
> @@ -718,16 +700,6 @@ static int eqos_stop_resets_tegra186(struct udevice *dev)
>         return 0;
>  }
>
> -static int eqos_stop_resets_stm32(struct udevice *dev)
> -{
> -       return 0;
> -}
> -
> -static int eqos_stop_resets_imx(struct udevice *dev)
> -{
> -       return 0;
> -}
> -
>  static int eqos_calibrate_pads_tegra186(struct udevice *dev)
>  {
>         struct eqos_priv *eqos = dev_get_priv(dev);
> @@ -816,26 +788,6 @@ static ulong eqos_get_tick_clk_rate_imx(struct udevice *dev)
>         return imx_get_eqos_csr_clk();
>  }
>
> -static int eqos_calibrate_pads_stm32(struct udevice *dev)
> -{
> -       return 0;
> -}
> -
> -static int eqos_calibrate_pads_imx(struct udevice *dev)
> -{
> -       return 0;
> -}
> -
> -static int eqos_disable_calibration_stm32(struct udevice *dev)
> -{
> -       return 0;
> -}
> -
> -static int eqos_disable_calibration_imx(struct udevice *dev)
> -{
> -       return 0;
> -}
> -
>  static int eqos_set_full_duplex(struct udevice *dev)
>  {
>         struct eqos_priv *eqos = dev_get_priv(dev);
> @@ -932,11 +884,6 @@ static int eqos_set_tx_clk_speed_tegra186(struct udevice *dev)
>         return 0;
>  }
>
> -static int eqos_set_tx_clk_speed_stm32(struct udevice *dev)
> -{
> -       return 0;
> -}
> -
>  static int eqos_set_tx_clk_speed_imx(struct udevice *dev)
>  {
>         struct eqos_priv *eqos = dev_get_priv(dev);
> @@ -1894,11 +1841,6 @@ static int eqos_remove_resources_stm32(struct udevice *dev)
>         return 0;
>  }
>
> -static int eqos_remove_resources_imx(struct udevice *dev)
> -{
> -       return 0;
> -}
> -
>  static int eqos_probe(struct udevice *dev)
>  {
>         struct eqos_priv *eqos = dev_get_priv(dev);
> @@ -1987,6 +1929,11 @@ static int eqos_remove(struct udevice *dev)
>         return 0;
>  }
>
> +static int eqos_null_ops(struct udevice *dev)
> +{
> +       return 0;
> +}
> +
>  static const struct eth_ops eqos_ops = {
>         .start = eqos_start,
>         .stop = eqos_stop,
> @@ -2032,13 +1979,13 @@ static struct eqos_ops eqos_stm32_ops = {
>         .eqos_flush_buffer = eqos_flush_buffer_generic,
>         .eqos_probe_resources = eqos_probe_resources_stm32,
>         .eqos_remove_resources = eqos_remove_resources_stm32,
> -       .eqos_stop_resets = eqos_stop_resets_stm32,
> -       .eqos_start_resets = eqos_start_resets_stm32,
> +       .eqos_stop_resets = eqos_null_ops,
> +       .eqos_start_resets = eqos_null_ops,
>         .eqos_stop_clks = eqos_stop_clks_stm32,
>         .eqos_start_clks = eqos_start_clks_stm32,
> -       .eqos_calibrate_pads = eqos_calibrate_pads_stm32,
> -       .eqos_disable_calibration = eqos_disable_calibration_stm32,
> -       .eqos_set_tx_clk_speed = eqos_set_tx_clk_speed_stm32,
> +       .eqos_calibrate_pads = eqos_null_ops,
> +       .eqos_disable_calibration = eqos_null_ops,
> +       .eqos_set_tx_clk_speed = eqos_null_ops,
>         .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_stm32
>  };
>
> @@ -2059,13 +2006,13 @@ static struct eqos_ops eqos_imx_ops = {
>         .eqos_inval_buffer = eqos_inval_buffer_generic,
>         .eqos_flush_buffer = eqos_flush_buffer_generic,
>         .eqos_probe_resources = eqos_probe_resources_imx,
> -       .eqos_remove_resources = eqos_remove_resources_imx,
> -       .eqos_stop_resets = eqos_stop_resets_imx,
> -       .eqos_start_resets = eqos_start_resets_imx,
> -       .eqos_stop_clks = eqos_stop_clks_imx,
> -       .eqos_start_clks = eqos_start_clks_imx,
> -       .eqos_calibrate_pads = eqos_calibrate_pads_imx,
> -       .eqos_disable_calibration = eqos_disable_calibration_imx,
> +       .eqos_remove_resources = eqos_null_ops,
> +       .eqos_stop_resets = eqos_null_ops,
> +       .eqos_start_resets = eqos_null_ops,
> +       .eqos_stop_clks = eqos_null_ops,
> +       .eqos_start_clks = eqos_null_ops,
> +       .eqos_calibrate_pads = eqos_null_ops,
> +       .eqos_disable_calibration = eqos_null_ops,
>         .eqos_set_tx_clk_speed = eqos_set_tx_clk_speed_imx,
>         .eqos_get_tick_clk_rate = eqos_get_tick_clk_rate_imx
>  };
> --
> 2.17.1
>
Reviewed-by: Ramon Fried <rfried.dev at gmail.com>