diff options
Diffstat (limited to 'drivers/acpi/osl.c')
| -rw-r--r-- | drivers/acpi/osl.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 02b30ae..0acd0e7 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -75,6 +75,54 @@ static acpi_osd_handler acpi_irq_handler; static void *acpi_irq_context; static struct workqueue_struct *kacpid_wq; +static void __init acpi_request_region (struct acpi_generic_address *addr, + unsigned int length, char *desc) +{ + struct resource *res; + + if (!addr->address || !length) + return; + + if (addr->address_space_id == ACPI_ADR_SPACE_SYSTEM_IO) + res = request_region(addr->address, length, desc); + else if (addr->address_space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) + res = request_mem_region(addr->address, length, desc); +} + +static int __init acpi_reserve_resources(void) +{ + acpi_request_region(&acpi_fadt.xpm1a_evt_blk, acpi_fadt.pm1_evt_len, + "ACPI PM1a_EVT_BLK"); + + acpi_request_region(&acpi_fadt.xpm1b_evt_blk, acpi_fadt.pm1_evt_len, + "ACPI PM1b_EVT_BLK"); + + acpi_request_region(&acpi_fadt.xpm1a_cnt_blk, acpi_fadt.pm1_cnt_len, + "ACPI PM1a_CNT_BLK"); + + acpi_request_region(&acpi_fadt.xpm1b_cnt_blk, acpi_fadt.pm1_cnt_len, + "ACPI PM1b_CNT_BLK"); + + if (acpi_fadt.pm_tm_len == 4) + acpi_request_region(&acpi_fadt.xpm_tmr_blk, 4, "ACPI PM_TMR"); + + acpi_request_region(&acpi_fadt.xpm2_cnt_blk, acpi_fadt.pm2_cnt_len, + "ACPI PM2_CNT_BLK"); + + /* Length of GPE blocks must be a non-negative multiple of 2 */ + + if (!(acpi_fadt.gpe0_blk_len & 0x1)) + acpi_request_region(&acpi_fadt.xgpe0_blk, + acpi_fadt.gpe0_blk_len, "ACPI GPE0_BLK"); + + if (!(acpi_fadt.gpe1_blk_len & 0x1)) + acpi_request_region(&acpi_fadt.xgpe1_blk, + acpi_fadt.gpe1_blk_len, "ACPI GPE1_BLK"); + + return 0; +} +device_initcall(acpi_reserve_resources); + acpi_status acpi_os_initialize(void) { return AE_OK; |
