implement resource management for platform devices
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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@ -214,7 +214,7 @@ int register_driver(struct driver_d *drv)
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}
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EXPORT_SYMBOL(register_driver);
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void __iomem *dev_get_mem_region(struct device_d *dev, int num)
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static struct resource *dev_get_resource(struct device_d *dev, int num)
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{
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int i, n = 0;
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@ -222,15 +222,40 @@ void __iomem *dev_get_mem_region(struct device_d *dev, int num)
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struct resource *res = &dev->resource[i];
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if (resource_type(res) == IORESOURCE_MEM) {
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if (n == num)
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return (void __force __iomem *)res->start;
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return res;
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n++;
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}
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}
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return NULL;
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}
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void __iomem *dev_get_mem_region(struct device_d *dev, int num)
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{
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struct resource *res;
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res = dev_get_resource(dev, num);
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if (!res)
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return res;
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return (void __force __iomem *)res->start;
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}
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EXPORT_SYMBOL(dev_get_mem_region);
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void __iomem *dev_request_mem_region(struct device_d *dev, int num)
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{
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struct resource *res;
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res = dev_get_resource(dev, num);
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if (!res)
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return NULL;
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res = request_iomem_region(dev_name(dev), res->start, res->size);
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return (void __force __iomem *)res->start;
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}
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EXPORT_SYMBOL(dev_request_mem_region);
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int dev_protect(struct device_d *dev, size_t count, unsigned long offset, int prot)
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{
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printf("%s: currently broken\n", __func__);
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@ -190,11 +190,7 @@ void __iomem *dev_get_mem_region(struct device_d *dev, int num);
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/*
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* exlusively request register base 'num' for a device
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*/
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static inline void __iomem *dev_request_mem_region(struct device_d *dev, int num)
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{
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/* no resource tracking yet */
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return dev_get_mem_region(dev, num);
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}
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void __iomem *dev_request_mem_region(struct device_d *dev, int num);
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/*
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* register a generic device
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