linux-kernel - Re: [PATCH] gmac: sun8i: r40: add gmac tx

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Date: Wed, 20 Dec 2023 18:04:28 +0100
From: Jernej Škrabec <jernej.skrabec@...il.com>
To: Alexandre Torgue <alexandre.torgue@...s.st.com>,
 Jose Abreu <joabreu@...opsys.com>, "David S. Miller" <davem@...emloft.net>,
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
 Paolo Abeni <pabeni@...hat.com>, Chen-Yu Tsai <wens@...e.org>,
 Jernej Skrabec <jernej.skrabec@...il.com>,
 Samuel Holland <samuel@...lland.org>,
 Maxime Coquelin <mcoquelin.stm32@...il.com>, netdev@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
 linux-stm32@...md-mailman.stormreply.com, linux-kernel@...r.kernel.org,
 麦健建 <maijianzhang@...winnertech.com>
Subject: Re: [PATCH] gmac: sun8i: r40: add gmac tx_delay support

Dne sreda, 20. december 2023 ob 10:08:25 CET je fuyao napisal(a):
> r40 can support tx_delay, so we add it.

I don't see how. User manual, 3.3.4.64. GMAC Clock Register talks only
about RX delay.

Best regards,
Jernej

> 
> Signed-off-by: fuyao <fuyao1697@....com>
> ---
>  drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
> index 137741b94122..fd07573afc9b 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
> @@ -127,6 +127,7 @@ static const struct emac_variant emac_variant_r40 = {
>  	.support_mii = true,
>  	.support_rgmii = true,
>  	.rx_delay_max = 7,
> +	.tx_delay_max = 7,
>  };
>  
>  static const struct emac_variant emac_variant_a64 = {
>