[PATCH v2 7/7] net: stmmac: dwmac-meson8b: use xxxsetbits32

Corentin Labbe clabbe at baylibre.com
Mon Sep 24 12:04:16 PDT 2018


This patch convert meson stmmac glue driver to use all xxxsetbits32 functions.

Signed-off-by: Corentin Labbe <clabbe at baylibre.com>
---
 .../net/ethernet/stmicro/stmmac/dwmac-meson8b.c    | 56 +++++++++-------------
 1 file changed, 22 insertions(+), 34 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c
index c5979569fd60..abcf65588576 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c
@@ -23,6 +23,7 @@
 #include <linux/mfd/syscon.h>
 #include <linux/platform_device.h>
 #include <linux/stmmac.h>
+#include <linux/setbits.h>
 
 #include "stmmac_platform.h"
 
@@ -75,18 +76,6 @@ struct meson8b_dwmac_clk_configs {
 	struct clk_gate		rgmii_tx_en;
 };
 
-static void meson8b_dwmac_mask_bits(struct meson8b_dwmac *dwmac, u32 reg,
-				    u32 mask, u32 value)
-{
-	u32 data;
-
-	data = readl(dwmac->regs + reg);
-	data &= ~mask;
-	data |= (value & mask);
-
-	writel(data, dwmac->regs + reg);
-}
-
 static struct clk *meson8b_dwmac_register_clk(struct meson8b_dwmac *dwmac,
 					      const char *name_suffix,
 					      const char **parent_names,
@@ -192,14 +181,13 @@ static int meson8b_set_phy_mode(struct meson8b_dwmac *dwmac)
 	case PHY_INTERFACE_MODE_RGMII_ID:
 	case PHY_INTERFACE_MODE_RGMII_TXID:
 		/* enable RGMII mode */
-		meson8b_dwmac_mask_bits(dwmac, PRG_ETH0,
-					PRG_ETH0_RGMII_MODE,
-					PRG_ETH0_RGMII_MODE);
+		clrsetbits_le32(dwmac->regs + PRG_ETH0, PRG_ETH0_RGMII_MODE,
+				PRG_ETH0_RGMII_MODE);
 		break;
 	case PHY_INTERFACE_MODE_RMII:
 		/* disable RGMII mode -> enables RMII mode */
-		meson8b_dwmac_mask_bits(dwmac, PRG_ETH0,
-					PRG_ETH0_RGMII_MODE, 0);
+		clrsetbits_le32(dwmac->regs + PRG_ETH0, PRG_ETH0_RGMII_MODE,
+				0);
 		break;
 	default:
 		dev_err(dwmac->dev, "fail to set phy-mode %s\n",
@@ -218,15 +206,15 @@ static int meson_axg_set_phy_mode(struct meson8b_dwmac *dwmac)
 	case PHY_INTERFACE_MODE_RGMII_ID:
 	case PHY_INTERFACE_MODE_RGMII_TXID:
 		/* enable RGMII mode */
-		meson8b_dwmac_mask_bits(dwmac, PRG_ETH0,
-					PRG_ETH0_EXT_PHY_MODE_MASK,
-					PRG_ETH0_EXT_RGMII_MODE);
+		clrsetbits_le32(dwmac->regs + PRG_ETH0,
+				PRG_ETH0_EXT_PHY_MODE_MASK,
+				PRG_ETH0_EXT_RGMII_MODE);
 		break;
 	case PHY_INTERFACE_MODE_RMII:
 		/* disable RGMII mode -> enables RMII mode */
-		meson8b_dwmac_mask_bits(dwmac, PRG_ETH0,
-					PRG_ETH0_EXT_PHY_MODE_MASK,
-					PRG_ETH0_EXT_RMII_MODE);
+		clrsetbits_le32(dwmac->regs + PRG_ETH0,
+				PRG_ETH0_EXT_PHY_MODE_MASK,
+				PRG_ETH0_EXT_RMII_MODE);
 		break;
 	default:
 		dev_err(dwmac->dev, "fail to set phy-mode %s\n",
@@ -255,11 +243,11 @@ static int meson8b_init_prg_eth(struct meson8b_dwmac *dwmac)
 	case PHY_INTERFACE_MODE_RGMII_ID:
 	case PHY_INTERFACE_MODE_RGMII_TXID:
 		/* only relevant for RMII mode -> disable in RGMII mode */
-		meson8b_dwmac_mask_bits(dwmac, PRG_ETH0,
-					PRG_ETH0_INVERTED_RMII_CLK, 0);
+		clrsetbits_le32(dwmac->regs + PRG_ETH0,
+				PRG_ETH0_INVERTED_RMII_CLK, 0);
 
-		meson8b_dwmac_mask_bits(dwmac, PRG_ETH0, PRG_ETH0_TXDLY_MASK,
-					tx_dly_val << PRG_ETH0_TXDLY_SHIFT);
+		clrsetbits_le32(dwmac->regs + PRG_ETH0, PRG_ETH0_TXDLY_MASK,
+				tx_dly_val << PRG_ETH0_TXDLY_SHIFT);
 
 		/* Configure the 125MHz RGMII TX clock, the IP block changes
 		 * the output automatically (= without us having to configure
@@ -287,13 +275,13 @@ static int meson8b_init_prg_eth(struct meson8b_dwmac *dwmac)
 
 	case PHY_INTERFACE_MODE_RMII:
 		/* invert internal clk_rmii_i to generate 25/2.5 tx_rx_clk */
-		meson8b_dwmac_mask_bits(dwmac, PRG_ETH0,
-					PRG_ETH0_INVERTED_RMII_CLK,
-					PRG_ETH0_INVERTED_RMII_CLK);
+		clrsetbits_le32(dwmac->regs + PRG_ETH0,
+				PRG_ETH0_INVERTED_RMII_CLK,
+				PRG_ETH0_INVERTED_RMII_CLK);
 
 		/* TX clock delay cannot be configured in RMII mode */
-		meson8b_dwmac_mask_bits(dwmac, PRG_ETH0, PRG_ETH0_TXDLY_MASK,
-					0);
+		clrsetbits_le32(dwmac->regs + PRG_ETH0, PRG_ETH0_TXDLY_MASK,
+				0);
 
 		break;
 
@@ -304,8 +292,8 @@ static int meson8b_init_prg_eth(struct meson8b_dwmac *dwmac)
 	}
 
 	/* enable TX_CLK and PHY_REF_CLK generator */
-	meson8b_dwmac_mask_bits(dwmac, PRG_ETH0, PRG_ETH0_TX_AND_PHY_REF_CLK,
-				PRG_ETH0_TX_AND_PHY_REF_CLK);
+	clrsetbits_le32(dwmac->regs + PRG_ETH0, PRG_ETH0_TX_AND_PHY_REF_CLK,
+			PRG_ETH0_TX_AND_PHY_REF_CLK);
 
 	return 0;
 }
-- 
2.16.4




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