X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=drivers%2Facpi%2Fec.c;h=2fe15060dcdc2c3a51dd9f3ef20171e0b4e50c8e;hb=fa15fdeffa3977b17882f485547e65296cf0bd30;hp=a2b82c90a6838eaff23a83cd30e741e0c3422e2a;hpb=66a101dda6b26ee566aa9cadcbea904a41d2b268;p=linux-2.6-omap-h63xx.git

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,