net: stmmac: replace the has_sun8i field with a flag

Drop the boolean field of the plat_stmmacenet_data structure in favor of a
simple bitfield flag.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Andrew Halaney <ahalaney@redhat.com>
Link: https://lore.kernel.org/r/20230710090001.303225-5-brgl@bgdev.plReviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c

@@ -1227,7 +1227,7 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)
 	plat_dat->interface = interface;
 	plat_dat->rx_coe = STMMAC_RX_COE_TYPE2;
 	plat_dat->tx_coe = 1;
-	plat_dat->has_sun8i = true;
+	plat_dat->flags |= STMMAC_FLAG_HAS_SUN8I;
 	plat_dat->bsp_priv = gmac;
 	plat_dat->init = sun8i_dwmac_init;
 	plat_dat->exit = sun8i_dwmac_exit;

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

@@ -325,7 +325,7 @@ static void stmmac_clk_csr_set(struct stmmac_priv *priv)
 			priv->clk_csr = STMMAC_CSR_250_300M;
 	}
 
-	if (priv->plat->has_sun8i) {
+	if (priv->plat->flags & STMMAC_FLAG_HAS_SUN8I) {
 		if (clk_rate > 160000000)
 			priv->clk_csr = 0x03;
 		else if (clk_rate > 80000000)
@@ -6856,7 +6856,7 @@ static int stmmac_hw_init(struct stmmac_priv *priv)
 	int ret;
 
 	/* dwmac-sun8i only work in chain mode */
-	if (priv->plat->has_sun8i)
+	if (priv->plat->flags & STMMAC_FLAG_HAS_SUN8I)
 		chain_mode = 1;
 	priv->chain_mode = chain_mode;
 

include/linux/stmmac.h

@@ -207,6 +207,7 @@ struct dwmac4_addrs {
 #define STMMAC_FLAG_HAS_INTEGRATED_PCS		BIT(0)
 #define STMMAC_FLAG_SPH_DISABLE			BIT(1)
 #define STMMAC_FLAG_USE_PHY_WOL			BIT(2)
+#define STMMAC_FLAG_HAS_SUN8I			BIT(3)
 
 struct plat_stmmacenet_data {
 	int bus_id;
@@ -270,7 +271,6 @@ struct plat_stmmacenet_data {
 	struct reset_control *stmmac_ahb_rst;
 	struct stmmac_axi *axi;
 	int has_gmac4;
-	bool has_sun8i;
 	bool tso_en;
 	int rss_en;
 	int mac_port_sel_speed;