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PNP: convert resource options to single linked list
[pandora-kernel.git] / drivers / pnp / pnpacpi / rsparser.c
diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c
index e114b3d..c2f59f4 100644 (file)
--- a/drivers/pnp/pnpacpi/rsparser.c
+++ b/drivers/pnp/pnpacpi/rsparser.c
@@ -407,7 +407,7 @@ int pnpacpi_parse_allocated_resource(struct pnp_dev *dev)
 }
 
 static __init void pnpacpi_parse_dma_option(struct pnp_dev *dev,
-                                           struct pnp_option *option,
+                                           unsigned int option_flags,
                                            struct acpi_resource_dma *p)
 {
        int i;
@@ -420,11 +420,11 @@ static __init void pnpacpi_parse_dma_option(struct pnp_dev *dev,
                map |= 1 << p->channels[i];
 
        flags = dma_flags(p->type, p->bus_master, p->transfer);
-       pnp_register_dma_resource(dev, option, map, flags);
+       pnp_register_dma_resource(dev, option_flags, map, flags);
 }
 
 static __init void pnpacpi_parse_irq_option(struct pnp_dev *dev,
-                                           struct pnp_option *option,
+                                           unsigned int option_flags,
                                            struct acpi_resource_irq *p)
 {
        int i;
@@ -440,11 +440,11 @@ static __init void pnpacpi_parse_irq_option(struct pnp_dev *dev,
                        __set_bit(p->interrupts[i], map.bits);
 
        flags = irq_flags(p->triggering, p->polarity, p->sharable);
-       pnp_register_irq_resource(dev, option, &map, flags);
+       pnp_register_irq_resource(dev, option_flags, &map, flags);
 }
 
 static __init void pnpacpi_parse_ext_irq_option(struct pnp_dev *dev,
-                                               struct pnp_option *option,
+                                       unsigned int option_flags,
                                        struct acpi_resource_extended_irq *p)
 {
        int i;
@@ -467,11 +467,11 @@ static __init void pnpacpi_parse_ext_irq_option(struct pnp_dev *dev,
        }
 
        flags = irq_flags(p->triggering, p->polarity, p->sharable);
-       pnp_register_irq_resource(dev, option, &map, flags);
+       pnp_register_irq_resource(dev, option_flags, &map, flags);
 }
 
 static __init void pnpacpi_parse_port_option(struct pnp_dev *dev,
-                                            struct pnp_option *option,
+                                            unsigned int option_flags,
                                             struct acpi_resource_io *io)
 {
        unsigned char flags = 0;
@@ -481,23 +481,23 @@ static __init void pnpacpi_parse_port_option(struct pnp_dev *dev,
 
        if (io->io_decode == ACPI_DECODE_16)
                flags = IORESOURCE_IO_16BIT_ADDR;
-       pnp_register_port_resource(dev, option, io->minimum, io->maximum,
+       pnp_register_port_resource(dev, option_flags, io->minimum, io->maximum,
                                   io->alignment, io->address_length, flags);
 }
 
 static __init void pnpacpi_parse_fixed_port_option(struct pnp_dev *dev,
-                                                  struct pnp_option *option,
+                                       unsigned int option_flags,
                                        struct acpi_resource_fixed_io *io)
 {
        if (io->address_length == 0)
                return;
 
-       pnp_register_port_resource(dev, option, io->address, io->address, 0,
-                                  io->address_length, IORESOURCE_IO_FIXED);
+       pnp_register_port_resource(dev, option_flags, io->address, io->address,
+                                  0, io->address_length, IORESOURCE_IO_FIXED);
 }
 
 static __init void pnpacpi_parse_mem24_option(struct pnp_dev *dev,
-                                             struct pnp_option *option,
+                                             unsigned int option_flags,
                                              struct acpi_resource_memory24 *p)
 {
        unsigned char flags = 0;
@@ -507,12 +507,12 @@ static __init void pnpacpi_parse_mem24_option(struct pnp_dev *dev,
 
        if (p->write_protect == ACPI_READ_WRITE_MEMORY)
                flags = IORESOURCE_MEM_WRITEABLE;
-       pnp_register_mem_resource(dev, option, p->minimum, p->maximum,
+       pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum,
                                  p->alignment, p->address_length, flags);
 }
 
 static __init void pnpacpi_parse_mem32_option(struct pnp_dev *dev,
-                                             struct pnp_option *option,
+                                             unsigned int option_flags,
                                              struct acpi_resource_memory32 *p)
 {
        unsigned char flags = 0;
@@ -522,12 +522,12 @@ static __init void pnpacpi_parse_mem32_option(struct pnp_dev *dev,
 
        if (p->write_protect == ACPI_READ_WRITE_MEMORY)
                flags = IORESOURCE_MEM_WRITEABLE;
-       pnp_register_mem_resource(dev, option, p->minimum, p->maximum,
+       pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum,
                                  p->alignment, p->address_length, flags);
 }
 
 static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_dev *dev,
-                                                   struct pnp_option *option,
+                                       unsigned int option_flags,
                                        struct acpi_resource_fixed_memory32 *p)
 {
        unsigned char flags = 0;
@@ -537,12 +537,12 @@ static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_dev *dev,
 
        if (p->write_protect == ACPI_READ_WRITE_MEMORY)
                flags = IORESOURCE_MEM_WRITEABLE;
-       pnp_register_mem_resource(dev, option, p->address, p->address,
+       pnp_register_mem_resource(dev, option_flags, p->address, p->address,
                                  0, p->address_length, flags);
 }
 
 static __init void pnpacpi_parse_address_option(struct pnp_dev *dev,
-                                               struct pnp_option *option,
+                                               unsigned int option_flags,
                                                struct acpi_resource *r)
 {
        struct acpi_resource_address64 addr, *p = &addr;
@@ -562,18 +562,18 @@ static __init void pnpacpi_parse_address_option(struct pnp_dev *dev,
        if (p->resource_type == ACPI_MEMORY_RANGE) {
                if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY)
                        flags = IORESOURCE_MEM_WRITEABLE;
-               pnp_register_mem_resource(dev, option, p->minimum, p->minimum,
-                                         0, p->address_length, flags);
+               pnp_register_mem_resource(dev, option_flags, p->minimum,
+                                         p->minimum, 0, p->address_length,
+                                         flags);
        } else if (p->resource_type == ACPI_IO_RANGE)
-               pnp_register_port_resource(dev, option, p->minimum, p->minimum,
-                                          0, p->address_length,
+               pnp_register_port_resource(dev, option_flags, p->minimum,
+                                          p->minimum, 0, p->address_length,
                                           IORESOURCE_IO_FIXED);
 }
 
 struct acpipnp_parse_option_s {
-       struct pnp_option *option;
-       struct pnp_option *option_independent;
        struct pnp_dev *dev;
+       unsigned int option_flags;
 };
 
 static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
@@ -582,15 +582,15 @@ static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
        int priority;
        struct acpipnp_parse_option_s *parse_data = data;
        struct pnp_dev *dev = parse_data->dev;
-       struct pnp_option *option = parse_data->option;
+       unsigned int option_flags = parse_data->option_flags;
 
        switch (res->type) {
        case ACPI_RESOURCE_TYPE_IRQ:
-               pnpacpi_parse_irq_option(dev, option, &res->data.irq);
+               pnpacpi_parse_irq_option(dev, option_flags, &res->data.irq);
                break;
 
        case ACPI_RESOURCE_TYPE_DMA:
-               pnpacpi_parse_dma_option(dev, option, &res->data.dma);
+               pnpacpi_parse_dma_option(dev, option_flags, &res->data.dma);
                break;
 
        case ACPI_RESOURCE_TYPE_START_DEPENDENT:
@@ -610,31 +610,19 @@ static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
                        priority = PNP_RES_PRIORITY_INVALID;
                        break;
                }
-               /* TBD: Consider performance/robustness bits */
-               option = pnp_register_dependent_option(dev, priority);
-               if (!option)
-                       return AE_ERROR;
-               parse_data->option = option;
+               parse_data->option_flags = pnp_new_dependent_set(dev, priority);
                break;
 
        case ACPI_RESOURCE_TYPE_END_DEPENDENT:
-               /*only one EndDependentFn is allowed */
-               if (!parse_data->option_independent) {
-                       dev_warn(&dev->dev, "more than one EndDependentFn "
-                                "in _PRS\n");
-                       return AE_ERROR;
-               }
-               parse_data->option = parse_data->option_independent;
-               parse_data->option_independent = NULL;
-               dev_dbg(&dev->dev, "end dependent options\n");
+               parse_data->option_flags = 0;
                break;
 
        case ACPI_RESOURCE_TYPE_IO:
-               pnpacpi_parse_port_option(dev, option, &res->data.io);
+               pnpacpi_parse_port_option(dev, option_flags, &res->data.io);
                break;
 
        case ACPI_RESOURCE_TYPE_FIXED_IO:
-               pnpacpi_parse_fixed_port_option(dev, option,
+               pnpacpi_parse_fixed_port_option(dev, option_flags,
                                                &res->data.fixed_io);
                break;
 
@@ -643,29 +631,31 @@ static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
                break;
 
        case ACPI_RESOURCE_TYPE_MEMORY24:
-               pnpacpi_parse_mem24_option(dev, option, &res->data.memory24);
+               pnpacpi_parse_mem24_option(dev, option_flags,
+                                          &res->data.memory24);
                break;
 
        case ACPI_RESOURCE_TYPE_MEMORY32:
-               pnpacpi_parse_mem32_option(dev, option, &res->data.memory32);
+               pnpacpi_parse_mem32_option(dev, option_flags,
+                                          &res->data.memory32);
                break;
 
        case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
-               pnpacpi_parse_fixed_mem32_option(dev, option,
+               pnpacpi_parse_fixed_mem32_option(dev, option_flags,
                                                 &res->data.fixed_memory32);
                break;
 
        case ACPI_RESOURCE_TYPE_ADDRESS16:
        case ACPI_RESOURCE_TYPE_ADDRESS32:
        case ACPI_RESOURCE_TYPE_ADDRESS64:
-               pnpacpi_parse_address_option(dev, option, res);
+               pnpacpi_parse_address_option(dev, option_flags, res);
                break;
 
        case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
                break;
 
        case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
-               pnpacpi_parse_ext_irq_option(dev, option,
+               pnpacpi_parse_ext_irq_option(dev, option_flags,
                                             &res->data.extended_irq);
                break;
 
@@ -689,12 +679,9 @@ int __init pnpacpi_parse_resource_option_data(struct pnp_dev *dev)
 
        dev_dbg(&dev->dev, "parse resource options\n");
 
-       parse_data.option = pnp_register_independent_option(dev);
-       if (!parse_data.option)
-               return -ENOMEM;
-
-       parse_data.option_independent = parse_data.option;
        parse_data.dev = dev;
+       parse_data.option_flags = 0;
+
        status = acpi_walk_resources(handle, METHOD_NAME__PRS,
                                     pnpacpi_option_resource, &parse_data);
 
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