sata_mv: support clkdev framework
Signed-off-by: Saeed Bishara <saeed@marvell.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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@ -59,6 +59,7 @@
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#include <linux/dmapool.h>
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#include <linux/dma-mapping.h>
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#include <linux/device.h>
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#include <linux/clk.h>
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#include <linux/platform_device.h>
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#include <linux/ata_platform.h>
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#include <linux/mbus.h>
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@ -548,6 +549,10 @@ struct mv_host_priv {
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u32 irq_cause_offset;
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u32 irq_mask_offset;
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u32 unmask_all_irqs;
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#if defined(CONFIG_HAVE_CLK)
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struct clk *clk;
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#endif
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/*
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* These consistent DMA memory pools give us guaranteed
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* alignment for hardware-accessed data structures,
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@ -4041,6 +4046,14 @@ static int mv_platform_probe(struct platform_device *pdev)
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resource_size(res));
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hpriv->base -= SATAHC0_REG_BASE;
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#if defined(CONFIG_HAVE_CLK)
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hpriv->clk = clk_get(&pdev->dev, NULL);
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if (IS_ERR(hpriv->clk))
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dev_notice(&pdev->dev, "cannot get clkdev\n");
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else
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clk_enable(hpriv->clk);
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#endif
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/*
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* (Re-)program MBUS remapping windows if we are asked to.
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*/
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@ -4049,12 +4062,12 @@ static int mv_platform_probe(struct platform_device *pdev)
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rc = mv_create_dma_pools(hpriv, &pdev->dev);
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if (rc)
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return rc;
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goto err;
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/* initialize adapter */
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rc = mv_init_host(host, chip_soc);
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if (rc)
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return rc;
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goto err;
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dev_printk(KERN_INFO, &pdev->dev,
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"slots %u ports %d\n", (unsigned)MV_MAX_Q_DEPTH,
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@ -4062,6 +4075,15 @@ static int mv_platform_probe(struct platform_device *pdev)
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return ata_host_activate(host, platform_get_irq(pdev, 0), mv_interrupt,
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IRQF_SHARED, &mv6_sht);
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err:
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#if defined(CONFIG_HAVE_CLK)
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if (!IS_ERR(hpriv->clk)) {
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clk_disable(hpriv->clk);
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clk_put(hpriv->clk);
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}
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#endif
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return rc;
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}
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/*
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@ -4076,8 +4098,17 @@ static int __devexit mv_platform_remove(struct platform_device *pdev)
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{
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struct device *dev = &pdev->dev;
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struct ata_host *host = dev_get_drvdata(dev);
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#if defined(CONFIG_HAVE_CLK)
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struct mv_host_priv *hpriv = host->private_data;
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#endif
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ata_host_detach(host);
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#if defined(CONFIG_HAVE_CLK)
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if (!IS_ERR(hpriv->clk)) {
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clk_disable(hpriv->clk);
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clk_put(hpriv->clk);
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}
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#endif
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return 0;
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}
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