driver: net: ethernet: cpsw: make cpts as pointer

As CPTS is common module for both EMAC in Dual EMAC mode so making cpts as
pointer.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 8ac60c7..4b964bb 100644 (file)
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -319,7 +319,7 @@ struct cpsw_priv {
        /* snapshot of IRQ numbers */
        u32 irqs_table[4];
        u32 num_irqs;
-       struct cpts cpts;
+       struct cpts *cpts;
 };
 
 #define napi_to_priv(napi)     container_of(napi, struct cpsw_priv, napi)
@@ -383,7 +383,7 @@ void cpsw_tx_handler(void *token, int len, int status)
         */
        if (unlikely(netif_queue_stopped(ndev)))
                netif_start_queue(ndev);
-       cpts_tx_timestamp(&priv->cpts, skb);
+       cpts_tx_timestamp(priv->cpts, skb);
        priv->stats.tx_packets++;
        priv->stats.tx_bytes += len;
        dev_kfree_skb_any(skb);
@@ -404,7 +404,7 @@ void cpsw_rx_handler(void *token, int len, int status)
        }
        if (likely(status >= 0)) {
                skb_put(skb, len);
-               cpts_rx_timestamp(&priv->cpts, skb);
+               cpts_rx_timestamp(priv->cpts, skb);
                skb->protocol = eth_type_trans(skb, ndev);
                netif_receive_skb(skb);
                priv->stats.rx_bytes += len;
@@ -760,7 +760,8 @@ static netdev_tx_t cpsw_ndo_start_xmit(struct sk_buff *skb,
                return NETDEV_TX_OK;
        }
 
-       if (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP && priv->cpts.tx_enable)
+       if (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP &&
+                               priv->cpts->tx_enable)
                skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
 
        skb_tx_timestamp(skb);
@@ -815,7 +816,7 @@ static void cpsw_hwtstamp_v1(struct cpsw_priv *priv)
        struct cpsw_slave *slave = &priv->slaves[priv->data.cpts_active_slave];
        u32 ts_en, seq_id;
 
-       if (!priv->cpts.tx_enable && !priv->cpts.rx_enable) {
+       if (!priv->cpts->tx_enable && !priv->cpts->rx_enable) {
                slave_write(slave, 0, CPSW1_TS_CTL);
                return;
        }
@@ -823,10 +824,10 @@ static void cpsw_hwtstamp_v1(struct cpsw_priv *priv)
        seq_id = (30 << CPSW_V1_SEQ_ID_OFS_SHIFT) | ETH_P_1588;
        ts_en = EVENT_MSG_BITS << CPSW_V1_MSG_TYPE_OFS;
 
-       if (priv->cpts.tx_enable)
+       if (priv->cpts->tx_enable)
                ts_en |= CPSW_V1_TS_TX_EN;
 
-       if (priv->cpts.rx_enable)
+       if (priv->cpts->rx_enable)
                ts_en |= CPSW_V1_TS_RX_EN;
 
        slave_write(slave, ts_en, CPSW1_TS_CTL);
@@ -841,10 +842,10 @@ static void cpsw_hwtstamp_v2(struct cpsw_priv *priv)
        ctrl = slave_read(slave, CPSW2_CONTROL);
        ctrl &= ~CTRL_ALL_TS_MASK;
 
-       if (priv->cpts.tx_enable)
+       if (priv->cpts->tx_enable)
                ctrl |= CTRL_TX_TS_BITS;
 
-       if (priv->cpts.rx_enable)
+       if (priv->cpts->rx_enable)
                ctrl |= CTRL_RX_TS_BITS;
 
        mtype = (30 << TS_SEQ_ID_OFFSET_SHIFT) | EVENT_MSG_BITS;
@@ -857,7 +858,7 @@ static void cpsw_hwtstamp_v2(struct cpsw_priv *priv)
 static int cpsw_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr)
 {
        struct cpsw_priv *priv = netdev_priv(dev);
-       struct cpts *cpts = &priv->cpts;
+       struct cpts *cpts = priv->cpts;
        struct hwtstamp_config cfg;
 
        if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
@@ -1086,7 +1087,7 @@ static int cpsw_get_ts_info(struct net_device *ndev,
                SOF_TIMESTAMPING_RX_SOFTWARE |
                SOF_TIMESTAMPING_SOFTWARE |
                SOF_TIMESTAMPING_RAW_HARDWARE;
-       info->phc_index = priv->cpts.phc_index;
+       info->phc_index = priv->cpts->phc_index;
        info->tx_types =
                (1 << HWTSTAMP_TX_OFF) |
                (1 << HWTSTAMP_TX_ON);
@@ -1272,6 +1273,11 @@ static int cpsw_probe(struct platform_device *pdev)
        priv->dev  = &ndev->dev;
        priv->msg_enable = netif_msg_init(debug_level, CPSW_DEBUG);
        priv->rx_packet_max = max(rx_packet_max, 128);
+       priv->cpts = devm_kzalloc(&pdev->dev, sizeof(struct cpts), GFP_KERNEL);
+       if (!ndev) {
+               pr_err("error allocating cpts\n");
+               goto clean_ndev_ret;
+       }
 
        /*
         * This may be required here for child devices.
@@ -1358,7 +1364,7 @@ static int cpsw_probe(struct platform_device *pdev)
        switch (priv->version) {
        case CPSW_VERSION_1:
                priv->host_port_regs = ss_regs + CPSW1_HOST_PORT_OFFSET;
-               priv->cpts.reg       = ss_regs + CPSW1_CPTS_OFFSET;
+               priv->cpts->reg       = ss_regs + CPSW1_CPTS_OFFSET;
                dma_params.dmaregs   = ss_regs + CPSW1_CPDMA_OFFSET;
                dma_params.txhdp     = ss_regs + CPSW1_STATERAM_OFFSET;
                ale_params.ale_regs  = ss_regs + CPSW1_ALE_OFFSET;
@@ -1369,7 +1375,7 @@ static int cpsw_probe(struct platform_device *pdev)
                break;
        case CPSW_VERSION_2:
                priv->host_port_regs = ss_regs + CPSW2_HOST_PORT_OFFSET;
-               priv->cpts.reg       = ss_regs + CPSW2_CPTS_OFFSET;
+               priv->cpts->reg       = ss_regs + CPSW2_CPTS_OFFSET;
                dma_params.dmaregs   = ss_regs + CPSW2_CPDMA_OFFSET;
                dma_params.txhdp     = ss_regs + CPSW2_STATERAM_OFFSET;
                ale_params.ale_regs  = ss_regs + CPSW2_ALE_OFFSET;
@@ -1471,7 +1477,7 @@ static int cpsw_probe(struct platform_device *pdev)
                goto clean_irq_ret;
        }
 
-       if (cpts_register(&pdev->dev, &priv->cpts,
+       if (cpts_register(&pdev->dev, priv->cpts,
                          data->cpts_clock_mult, data->cpts_clock_shift))
                dev_err(priv->dev, "error registering cpts device\n");
 
@@ -1516,7 +1522,7 @@ static int cpsw_remove(struct platform_device *pdev)
        pr_info("removing device");
        platform_set_drvdata(pdev, NULL);
 
-       cpts_unregister(&priv->cpts);
+       cpts_unregister(priv->cpts);
        free_irq(ndev->irq, priv);
        cpsw_ale_destroy(priv->ale);
        cpdma_chan_destroy(priv->txch);