diff options
Diffstat (limited to 'drivers/pnp/core.c')
| -rw-r--r-- | drivers/pnp/core.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/pnp/core.c b/drivers/pnp/core.c index aec83ec5ea23..3e20b1cc7778 100644 --- a/drivers/pnp/core.c +++ b/drivers/pnp/core.c @@ -14,6 +14,7 @@ #include <linux/string.h> #include <linux/slab.h> #include <linux/errno.h> +#include <linux/dma-mapping.h> #include "base.h" @@ -22,6 +23,14 @@ static LIST_HEAD(pnp_protocols); LIST_HEAD(pnp_global); DEFINE_SPINLOCK(pnp_lock); +/* + * ACPI or PNPBIOS should tell us about all platform devices, so we can + * skip some blind probes. ISAPNP typically enumerates only plug-in ISA + * devices, not built-in things like COM ports. + */ +int pnp_platform_devices; +EXPORT_SYMBOL(pnp_platform_devices); + void *pnp_alloc(long size) { void *result; @@ -114,6 +123,8 @@ int __pnp_add_device(struct pnp_dev *dev) int ret; pnp_fixup_device(dev); dev->dev.bus = &pnp_bus_type; + dev->dev.dma_mask = &dev->dma_mask; + dev->dma_mask = dev->dev.coherent_dma_mask = DMA_24BIT_MASK; dev->dev.release = &pnp_release_device; dev->status = PNP_READY; spin_lock(&pnp_lock); |