diff options
Diffstat (limited to 'drivers/bus/omap-ocp2scp.c')
| -rw-r--r-- | drivers/bus/omap-ocp2scp.c | 68 | 
1 files changed, 65 insertions, 3 deletions
diff --git a/drivers/bus/omap-ocp2scp.c b/drivers/bus/omap-ocp2scp.c index ff63560b846..0c48b0e05ed 100644 --- a/drivers/bus/omap-ocp2scp.c +++ b/drivers/bus/omap-ocp2scp.c @@ -22,6 +22,26 @@  #include <linux/pm_runtime.h>  #include <linux/of.h>  #include <linux/of_platform.h> +#include <linux/platform_data/omap_ocp2scp.h> + +/** + * _count_resources - count for the number of resources + * @res: struct resource * + * + * Count and return the number of resources populated for the device that is + * connected to ocp2scp. + */ +static unsigned _count_resources(struct resource *res) +{ +	int cnt	= 0; + +	while (res->start != res->end) { +		cnt++; +		res++; +	} + +	return cnt; +}  static int ocp2scp_remove_devices(struct device *dev, void *c)  { @@ -34,20 +54,62 @@ static int ocp2scp_remove_devices(struct device *dev, void *c)  static int __devinit omap_ocp2scp_probe(struct platform_device *pdev)  { -	int			ret; -	struct device_node	*np = pdev->dev.of_node; +	int ret; +	unsigned res_cnt, i; +	struct device_node *np = pdev->dev.of_node; +	struct platform_device *pdev_child; +	struct omap_ocp2scp_platform_data *pdata = pdev->dev.platform_data; +	struct omap_ocp2scp_dev *dev;  	if (np) {  		ret = of_platform_populate(np, NULL, NULL, &pdev->dev);  		if (ret) { -			dev_err(&pdev->dev, "failed to add resources for ocp2scp child\n"); +			dev_err(&pdev->dev, +			    "failed to add resources for ocp2scp child\n");  			goto err0;  		} +	} else if (pdata) { +		for (i = 0, dev = *pdata->devices; i < pdata->dev_cnt; i++, +		    dev++) { +			res_cnt = _count_resources(dev->res); + +			pdev_child = platform_device_alloc(dev->drv_name, +			    PLATFORM_DEVID_AUTO); +			if (!pdev_child) { +				dev_err(&pdev->dev, +				  "failed to allocate mem for ocp2scp child\n"); +				goto err0; +			} + +			ret = platform_device_add_resources(pdev_child, +			    dev->res, res_cnt); +			if (ret) { +				dev_err(&pdev->dev, +				 "failed to add resources for ocp2scp child\n"); +				goto err1; +			} + +			pdev_child->dev.parent	= &pdev->dev; + +			ret = platform_device_add(pdev_child); +			if (ret) { +				dev_err(&pdev->dev, +				   "failed to register ocp2scp child device\n"); +				goto err1; +			} +		} +	} else { +		dev_err(&pdev->dev, "OCP2SCP initialized without plat data\n"); +		return -EINVAL;  	} +  	pm_runtime_enable(&pdev->dev);  	return 0; +err1: +	platform_device_put(pdev_child); +  err0:  	device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices);  |