Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

[linux-2.6-omap-h63xx.git] / drivers / acpi / hardware / hwgpe.c

diff --git a/drivers/acpi/hardware/hwgpe.c b/drivers/acpi/hardware/hwgpe.c
index 117a05cadaaa9014ca2a6c5b29a5fa566accca08..0b80db9d91979e17ce418f840a56d3096afb5f2d 100644 (file)
--- a/drivers/acpi/hardware/hwgpe.c
+++ b/drivers/acpi/hardware/hwgpe.c
@@ -6,7 +6,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2007, R. Byron Moore
+ * Copyright (C) 2000 - 2008, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -53,6 +53,54 @@ static acpi_status
 acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
                                struct acpi_gpe_block_info *gpe_block);
 
+/******************************************************************************
+ *
+ * FUNCTION:   acpi_hw_low_disable_gpe
+ *
+ * PARAMETERS: gpe_event_info      - Info block for the GPE to be disabled
+ *
+ * RETURN:     Status
+ *
+ * DESCRIPTION: Disable a single GPE in the enable register.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info)
+{
+       struct acpi_gpe_register_info *gpe_register_info;
+       acpi_status status;
+       u32 enable_mask;
+
+       /* Get the info block for the entire GPE register */
+
+       gpe_register_info = gpe_event_info->register_info;
+       if (!gpe_register_info) {
+               return (AE_NOT_EXIST);
+       }
+
+       /* Get current value of the enable register that contains this GPE */
+
+       status = acpi_hw_low_level_read(ACPI_GPE_REGISTER_WIDTH, &enable_mask,
+                                       &gpe_register_info->enable_address);
+       if (ACPI_FAILURE(status)) {
+               return (status);
+       }
+
+       /* Clear just the bit that corresponds to this GPE */
+
+       ACPI_CLEAR_BIT(enable_mask,
+                      ((u32) 1 <<
+                       (gpe_event_info->gpe_number -
+                        gpe_register_info->base_gpe_number)));
+
+       /* Write the updated enable mask */
+
+       status = acpi_hw_low_level_write(ACPI_GPE_REGISTER_WIDTH, enable_mask,
+                                        &gpe_register_info->enable_address);
+
+       return (status);
+}
+
 /******************************************************************************
  *
  * FUNCTION:    acpi_hw_write_gpe_enable_reg
@@ -68,7 +116,7 @@ acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
  ******************************************************************************/
 
 acpi_status
-acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info *gpe_event_info)
+acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info * gpe_event_info)
 {
        struct acpi_gpe_register_info *gpe_register_info;
        acpi_status status;
@@ -138,7 +186,6 @@ acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info * gpe_event_info)
  *
  ******************************************************************************/
 
-#ifdef ACPI_FUTURE_USAGE
 acpi_status
 acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info,
                       acpi_event_status * event_status)
@@ -198,7 +245,6 @@ acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info,
       unlock_and_exit:
        return (status);
 }
-#endif                         /*  ACPI_FUTURE_USAGE  */
 
 /******************************************************************************
  *