linux-kernel - [PATCH 3/3] net: stmmac: dwmac-rk: Use DELAY

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Message-ID: <20250306203858.1677595-4-jonas@kwiboo.se>
Date: Thu,  6 Mar 2025 20:38:54 +0000
From: Jonas Karlman <jonas@...boo.se>
To: Heiko Stuebner <heiko@...ech.de>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	David Wu <david.wu@...k-chips.com>,
	Sebastian Reichel <sebastian.reichel@...labora.com>
Cc: netdev@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Jonas Karlman <jonas@...boo.se>,
	linux-stm32@...md-mailman.stormreply.com
Subject: [PATCH 3/3] net: stmmac: dwmac-rk: Use DELAY_ENABLE macro for RK3588

Support for Rockchip RK3588 GMAC was added without use of the
DELAY_ENABLE macro to assist with enable/disable use of MAC rx/tx delay.

Change to use a variant of the DELAY_ENABLE macro to help disable MAC
delay when RGMII_ID/RXID/TXID is used.

Fixes: 2f2b60a0ec28 ("net: ethernet: stmmac: dwmac-rk: Add gmac support for rk3588")
Signed-off-by: Jonas Karlman <jonas@...boo.se>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index 37eb86e4e325..79db81d68afd 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -91,6 +91,10 @@ struct rk_priv_data {
 	(((tx) ? soc##_GMAC_TXCLK_DLY_ENABLE : soc##_GMAC_TXCLK_DLY_DISABLE) | \
 	 ((rx) ? soc##_GMAC_RXCLK_DLY_ENABLE : soc##_GMAC_RXCLK_DLY_DISABLE))
 
+#define DELAY_ENABLE_BY_ID(soc, tx, rx, id) \
+	(((tx) ? soc##_GMAC_TXCLK_DLY_ENABLE(id) : soc##_GMAC_TXCLK_DLY_DISABLE(id)) | \
+	 ((rx) ? soc##_GMAC_RXCLK_DLY_ENABLE(id) : soc##_GMAC_RXCLK_DLY_DISABLE(id)))
+
 #define PX30_GRF_GMAC_CON1		0x0904
 
 /* PX30_GRF_GMAC_CON1 */
@@ -1322,8 +1326,7 @@ static void rk3588_set_to_rgmii(struct rk_priv_data *bsp_priv,
 		     RK3588_GMAC_CLK_RGMII_MODE(id));
 
 	regmap_write(bsp_priv->grf, RK3588_GRF_GMAC_CON7,
-		     RK3588_GMAC_RXCLK_DLY_ENABLE(id) |
-		     RK3588_GMAC_TXCLK_DLY_ENABLE(id));
+		     DELAY_ENABLE_BY_ID(RK3588, tx_delay, rx_delay, id));
 
 	regmap_write(bsp_priv->grf, offset_con,
 		     RK3588_GMAC_CLK_RX_DL_CFG(rx_delay) |
-- 
2.48.1