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| author | David S. Miller <davem@davemloft.net> | 2009-02-24 03:49:55 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-02-24 03:49:55 -0800 |
| commit | 467388f29fc9cebfb70e7a187107b6b5d772cb44 (patch) | |
| tree | 4e6fffa65f38addffc149a5fe88be3d2161eaf6e /drivers/acpi/ec.c | |
| parent | 028e1415a78733fcd2cba4b4c001826cc37a373e (diff) | |
| parent | f7e603ad8f78cd3b59e33fa72707da0cbabdf699 (diff) | |
| download | kernel_samsung_aries-467388f29fc9cebfb70e7a187107b6b5d772cb44.zip kernel_samsung_aries-467388f29fc9cebfb70e7a187107b6b5d772cb44.tar.gz kernel_samsung_aries-467388f29fc9cebfb70e7a187107b6b5d772cb44.tar.bz2 | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'drivers/acpi/ec.c')
| -rw-r--r-- | drivers/acpi/ec.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index a2b82c9..2fe1506 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -120,6 +120,8 @@ static struct acpi_ec { spinlock_t curr_lock; } *boot_ec, *first_ec; +static int EC_FLAGS_MSI; /* Out-of-spec MSI controller */ + /* -------------------------------------------------------------------------- Transaction Management -------------------------------------------------------------------------- */ @@ -259,6 +261,8 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, clear_bit(EC_FLAGS_GPE_MODE, &ec->flags); acpi_disable_gpe(NULL, ec->gpe); } + if (EC_FLAGS_MSI) + udelay(ACPI_EC_DELAY); /* start transaction */ spin_lock_irqsave(&ec->curr_lock, tmp); /* following two actions should be kept atomic */ @@ -967,6 +971,11 @@ int __init acpi_ec_ecdt_probe(void) /* * Generate a boot ec context */ + if (dmi_name_in_vendors("Micro-Star") || + dmi_name_in_vendors("Notebook")) { + pr_info(PREFIX "Enabling special treatment for EC from MSI.\n"); + EC_FLAGS_MSI = 1; + } status = acpi_get_table(ACPI_SIG_ECDT, 1, (struct acpi_table_header **)&ecdt_ptr); if (ACPI_SUCCESS(status)) { @@ -982,7 +991,7 @@ int __init acpi_ec_ecdt_probe(void) saved_ec = kmalloc(sizeof(struct acpi_ec), GFP_KERNEL); if (!saved_ec) return -ENOMEM; - memcpy(&saved_ec, boot_ec, sizeof(saved_ec)); + memcpy(saved_ec, boot_ec, sizeof(*saved_ec)); /* fall through */ } /* This workaround is needed only on some broken machines, |