OMAP: McBSP: Add pm runtime support

[pandora-kernel.git] / arch / arm / plat-omap / mcbsp.c

diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c
index 67ec74e..6d23016 100644 (file)
--- a/arch/arm/plat-omap/mcbsp.c
+++ b/arch/arm/plat-omap/mcbsp.c
@@ -28,6 +28,7 @@
 #include <plat/dma.h>
 #include <plat/mcbsp.h>
 #include <plat/omap_device.h>
+#include <linux/pm_runtime.h>
 
 /* XXX These "sideways" includes are a sign that something is wrong */
 #include "../mach-omap2/cm2xxx_3xxx.h"
@@ -757,8 +758,7 @@ int omap_mcbsp_request(unsigned int id)
        if (mcbsp->pdata && mcbsp->pdata->ops && mcbsp->pdata->ops->request)
                mcbsp->pdata->ops->request(id);
 
-       clk_enable(mcbsp->iclk);
-       clk_enable(mcbsp->fclk);
+       pm_runtime_get_sync(mcbsp->dev);
 
        /* Do procedure specific to omap34xx arch, if applicable */
        omap34xx_mcbsp_request(mcbsp);
@@ -806,8 +806,7 @@ err_clk_disable:
        /* Do procedure specific to omap34xx arch, if applicable */
        omap34xx_mcbsp_free(mcbsp);
 
-       clk_disable(mcbsp->fclk);
-       clk_disable(mcbsp->iclk);
+       pm_runtime_put_sync(mcbsp->dev);
 
        spin_lock(&mcbsp->lock);
        mcbsp->free = true;
@@ -837,8 +836,7 @@ void omap_mcbsp_free(unsigned int id)
        /* Do procedure specific to omap34xx arch, if applicable */
        omap34xx_mcbsp_free(mcbsp);
 
-       clk_disable(mcbsp->fclk);
-       clk_disable(mcbsp->iclk);
+       pm_runtime_put_sync(mcbsp->dev);
 
        if (mcbsp->io_type == OMAP_MCBSP_IRQ_IO) {
                /* Free IRQs */
@@ -1827,32 +1825,24 @@ static int __devinit omap_mcbsp_probe(struct platform_device *pdev)
        }
        mcbsp->dma_tx_sync = res->start;
 
-       mcbsp->iclk = clk_get(&pdev->dev, "ick");
-       if (IS_ERR(mcbsp->iclk)) {
-               ret = PTR_ERR(mcbsp->iclk);
-               dev_err(&pdev->dev, "unable to get ick: %d\n", ret);
-               goto err_res;
-       }
-
        mcbsp->fclk = clk_get(&pdev->dev, "fck");
        if (IS_ERR(mcbsp->fclk)) {
                ret = PTR_ERR(mcbsp->fclk);
                dev_err(&pdev->dev, "unable to get fck: %d\n", ret);
-               goto err_fclk;
+               goto err_res;
        }
 
        mcbsp->pdata = pdata;
        mcbsp->dev = &pdev->dev;
        mcbsp_ptr[id] = mcbsp;
        platform_set_drvdata(pdev, mcbsp);
+       pm_runtime_enable(mcbsp->dev);
 
        /* Initialize mcbsp properties for OMAP34XX if needed / applicable */
        omap34xx_device_init(mcbsp);
 
        return 0;
 
-err_fclk:
-       clk_put(mcbsp->iclk);
 err_res:
        iounmap(mcbsp->io_base);
 err_ioremap:
@@ -1875,7 +1865,6 @@ static int __devexit omap_mcbsp_remove(struct platform_device *pdev)
                omap34xx_device_exit(mcbsp);
 
                clk_put(mcbsp->fclk);
-               clk_put(mcbsp->iclk);
 
                iounmap(mcbsp->io_base);
                kfree(mcbsp);