openwrt-xburst/target/linux/lantiq/patches-3.2/0032-NET-MIPS-lantiq-convert-etop-driver-to-clkdev-api.patch

From e3b7883bacd449a22e262cc359dc923c78eb32f6 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Thu, 8 Mar 2012 11:23:00 +0100
Subject: [PATCH 32/73] NET: MIPS: lantiq: convert etop driver to clkdev api

Update from old pmu_{dis,en}able() to ckldev api.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: netdev@vger.kernel.org
---
 drivers/net/ethernet/lantiq_etop.c |   49 ++++++++++++++++++++++++++++++-----
 1 files changed, 42 insertions(+), 7 deletions(-)

--- a/drivers/net/ethernet/lantiq_etop.c
+++ b/drivers/net/ethernet/lantiq_etop.c
@@ -36,6 +36,7 @@
 #include <linux/io.h>
 #include <linux/dma-mapping.h>
 #include <linux/module.h>
+#include <linux/clk.h>
 
 #include <asm/checksum.h>
 
@@ -147,6 +148,11 @@ struct ltq_etop_priv {
 	int tx_free[MAX_DMA_CHAN >> 1];
 
 	spinlock_t lock;
+
+	struct clk *clk_ppe;
+	struct clk *clk_switch;
+	struct clk *clk_ephy;
+	struct clk *clk_ephycgu;
 };
 
 static int ltq_etop_mdio_wr(struct mii_bus *bus, int phy_addr,
@@ -280,16 +286,27 @@ ltq_etop_hw_exit(struct net_device *dev)
 	struct ltq_etop_priv *priv = netdev_priv(dev);
 	int i;
 
-	ltq_pmu_disable(PMU_PPE);
+	clk_disable(priv->clk_ppe);
+
+	if (ltq_has_gbit())
+		clk_disable(priv->clk_switch);
+
+	if (ltq_is_ase()) {
+		clk_disable(priv->clk_ephy);
+		clk_disable(priv->clk_ephycgu);
+	}
+
 	for (i = 0; i < MAX_DMA_CHAN; i++)
 		if (IS_TX(i) || IS_RX(i))
 			ltq_etop_free_channel(dev, &priv->ch[i]);
 }
 
 static void
-ltq_etop_gbit_init(void)
+ltq_etop_gbit_init(struct net_device *dev)
 {
-	ltq_pmu_enable(PMU_SWITCH);
+	struct ltq_etop_priv *priv = netdev_priv(dev);
+
+	clk_enable(priv->clk_switch);
 
 	ltq_gbit_w32_mask(0, GCTL0_SE, LTQ_GBIT_GCTL0);
 	/** Disable MDIO auto polling mode */
@@ -312,10 +329,10 @@ ltq_etop_hw_init(struct net_device *dev)
 	int err = 0;
 	int i;
 
-	ltq_pmu_enable(PMU_PPE);
+	clk_enable(priv->clk_ppe);
 
 	if (ltq_has_gbit()) {
-		ltq_etop_gbit_init();
+		ltq_etop_gbit_init(dev);
 		/* force the etops link to the gbit to MII */
 		mii_mode = PHY_INTERFACE_MODE_MII;
 	}
@@ -333,11 +350,11 @@ ltq_etop_hw_init(struct net_device *dev)
 
 	default:
 		if (ltq_is_ase()) {
-			ltq_pmu_enable(PMU_EPHY);
+			clk_enable(priv->clk_ephy);
 			/* disable external MII */
 			ltq_etop_w32_mask(0, ETOP_CFG_MII0, LTQ_ETOP_CFG);
 			/* enable clock for internal PHY */
-			ltq_cgu_enable(CGU_EPHY);
+			clk_enable(priv->clk_ephycgu);
 			/* we need to write this magic to the internal phy to
 			   make it work */
 			ltq_etop_mdio_wr(NULL, 0x8, 0x12, 0xC020);
@@ -880,6 +897,24 @@ ltq_etop_probe(struct platform_device *p
 	priv->res = res;
 	priv->pldata = dev_get_platdata(&pdev->dev);
 	priv->netdev = dev;
+
+	priv->clk_ppe = clk_get(&pdev->dev, NULL);
+	if (IS_ERR(priv->clk_ppe))
+		return PTR_ERR(priv->clk_ppe);
+	if (ltq_has_gbit()) {
+		priv->clk_switch = clk_get(&pdev->dev, "switch");
+		if (IS_ERR(priv->clk_switch))
+			return PTR_ERR(priv->clk_switch);
+	}
+	if (ltq_is_ase()) {
+		priv->clk_ephy = clk_get(&pdev->dev, "ephy");
+		if (IS_ERR(priv->clk_ephy))
+			return PTR_ERR(priv->clk_ephy);
+		priv->clk_ephycgu = clk_get(&pdev->dev, "ephycgu");
+		if (IS_ERR(priv->clk_ephycgu))
+			return PTR_ERR(priv->clk_ephycgu);
+	}
+
 	spin_lock_init(&priv->lock);
 
 	for (i = 0; i < MAX_DMA_CHAN; i++) {