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| author | H. Peter Anvin <hpa@linux.intel.com> | 2009-02-23 14:05:56 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2009-02-23 14:05:56 -0800 |
| commit | dc731ca60954310be0993e8992d450c7089fd13d (patch) | |
| tree | 6a997916f963d9e6dfa76fc5564296f57c3f909e /drivers/acpi/ec.c | |
| parent | ec5b3d32437571b8a742069a4cfd04edb6b6eda5 (diff) | |
| parent | 20f4d6c3a2a23c5d7d9cc7f42fbb943ca7a03d1f (diff) | |
| download | kernel-crypto-dc731ca60954310be0993e8992d450c7089fd13d.tar.gz kernel-crypto-dc731ca60954310be0993e8992d450c7089fd13d.tar.xz kernel-crypto-dc731ca60954310be0993e8992d450c7089fd13d.zip | |
Merge branch 'x86/urgent' into x86/mce2
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 a2b82c90a68..2fe15060dcd 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, |