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https://github.com/openwrt/openwrt.git
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119 lines
3.3 KiB
Diff
119 lines
3.3 KiB
Diff
From 80b0356aea30e9fc9e075d31c2bf37e7cbfea8c9 Mon Sep 17 00:00:00 2001
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From: Jonas Gorski <jogo@openwrt.org>
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Date: Sun, 10 Mar 2013 13:59:55 +0100
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Subject: [PATCH 1/3] bcm63xx_enet: use managed io memory allocations
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Signed-off-by: Jonas Gorski <jogo@openwrt.org>
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---
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drivers/net/ethernet/broadcom/bcm63xx_enet.c | 43 +++++---------------------
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1 file changed, 7 insertions(+), 36 deletions(-)
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--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
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+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
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@@ -1620,7 +1620,6 @@ static int bcm_enet_probe(struct platfor
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struct resource *res_mem, *res_irq, *res_irq_rx, *res_irq_tx;
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struct mii_bus *bus;
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const char *clk_name;
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- unsigned int iomem_size;
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int i, ret;
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/* stop if shared driver failed, assume driver->probe will be
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@@ -1645,17 +1644,12 @@ static int bcm_enet_probe(struct platfor
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if (ret)
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goto out;
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- iomem_size = resource_size(res_mem);
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- if (!request_mem_region(res_mem->start, iomem_size, "bcm63xx_enet")) {
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- ret = -EBUSY;
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- goto out;
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- }
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-
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- priv->base = ioremap(res_mem->start, iomem_size);
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+ priv->base = devm_request_and_ioremap(&pdev->dev, res_mem);
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if (priv->base == NULL) {
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ret = -ENOMEM;
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- goto out_release_mem;
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+ goto out;
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}
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+
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dev->irq = priv->irq = res_irq->start;
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priv->irq_rx = res_irq_rx->start;
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priv->irq_tx = res_irq_tx->start;
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@@ -1675,7 +1669,7 @@ static int bcm_enet_probe(struct platfor
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priv->mac_clk = clk_get(&pdev->dev, clk_name);
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if (IS_ERR(priv->mac_clk)) {
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ret = PTR_ERR(priv->mac_clk);
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- goto out_unmap;
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+ goto out;
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}
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clk_enable(priv->mac_clk);
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@@ -1815,12 +1809,6 @@ out_uninit_hw:
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out_put_clk_mac:
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clk_disable(priv->mac_clk);
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clk_put(priv->mac_clk);
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-
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-out_unmap:
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- iounmap(priv->base);
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-
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-out_release_mem:
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- release_mem_region(res_mem->start, iomem_size);
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out:
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free_netdev(dev);
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return ret;
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@@ -1834,7 +1822,6 @@ static int bcm_enet_remove(struct platfo
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{
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struct bcm_enet_priv *priv;
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struct net_device *dev;
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- struct resource *res;
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/* stop netdevice */
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dev = platform_get_drvdata(pdev);
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@@ -1857,11 +1844,6 @@ static int bcm_enet_remove(struct platfo
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bcm_enet_mdio_write_mii);
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}
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- /* release device resources */
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- iounmap(priv->base);
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- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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- release_mem_region(res->start, resource_size(res));
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-
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/* disable hw block clocks */
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if (priv->phy_clk) {
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clk_disable(priv->phy_clk);
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@@ -1890,31 +1872,20 @@ struct platform_driver bcm63xx_enet_driv
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static int bcm_enet_shared_probe(struct platform_device *pdev)
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{
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struct resource *res;
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- unsigned int iomem_size;
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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if (!res)
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return -ENODEV;
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- iomem_size = resource_size(res);
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- if (!request_mem_region(res->start, iomem_size, "bcm63xx_enet_dma"))
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- return -EBUSY;
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-
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- bcm_enet_shared_base = ioremap(res->start, iomem_size);
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- if (!bcm_enet_shared_base) {
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- release_mem_region(res->start, iomem_size);
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+ bcm_enet_shared_base = devm_request_and_ioremap(&pdev->dev, res);
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+ if (!bcm_enet_shared_base)
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return -ENOMEM;
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- }
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+
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return 0;
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}
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static int bcm_enet_shared_remove(struct platform_device *pdev)
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{
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- struct resource *res;
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-
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- iounmap(bcm_enet_shared_base);
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- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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- release_mem_region(res->start, resource_size(res));
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return 0;
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}
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