Merge branch 'gpe-regression-fixes' into release

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / acpi / acpica / evgpe.c

diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c
index a221ad4..7c2c336 100644 (file)
--- a/drivers/acpi/acpica/evgpe.c
+++ b/drivers/acpi/acpica/evgpe.c
@@ -69,7 +69,7 @@ acpi_status
 acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info)
 {
        struct acpi_gpe_register_info *gpe_register_info;
-       u8 register_bit;
+       u32 register_bit;
 
        ACPI_FUNCTION_TRACE(ev_update_gpe_enable_masks);
 
@@ -78,9 +78,8 @@ acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info)
                return_ACPI_STATUS(AE_NOT_EXIST);
        }
 
-       register_bit = (u8)
-           (1 <<
-            (gpe_event_info->gpe_number - gpe_register_info->base_gpe_number));
+       register_bit = acpi_hw_gpe_register_bit(gpe_event_info,
+                                               gpe_register_info);
 
        /* Clear the wake/run bits up front */
 
@@ -100,106 +99,6 @@ acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info)
        return_ACPI_STATUS(AE_OK);
 }
 
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ev_enable_gpe
- *
- * PARAMETERS:  gpe_event_info          - GPE to enable
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Hardware-enable a GPE. Always enables the GPE, regardless
- *              of type or number of references.
- *
- * Note: The GPE lock should be already acquired when this function is called.
- *
- ******************************************************************************/
-
-acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info)
-{
-       acpi_status status;
-
-
-       ACPI_FUNCTION_TRACE(ev_enable_gpe);
-
-
-       /*
-        * We will only allow a GPE to be enabled if it has either an
-        * associated method (_Lxx/_Exx) or a handler. Otherwise, the
-        * GPE will be immediately disabled by acpi_ev_gpe_dispatch the
-        * first time it fires.
-        */
-       if (!(gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK)) {
-               return_ACPI_STATUS(AE_NO_HANDLER);
-       }
-
-       /* Ensure the HW enable masks are current */
-
-       status = acpi_ev_update_gpe_enable_masks(gpe_event_info);
-       if (ACPI_FAILURE(status)) {
-               return_ACPI_STATUS(status);
-       }
-
-       /* Clear the GPE (of stale events) */
-
-       status = acpi_hw_clear_gpe(gpe_event_info);
-       if (ACPI_FAILURE(status)) {
-               return_ACPI_STATUS(status);
-       }
-
-       /* Enable the requested GPE */
-
-       status = acpi_hw_write_gpe_enable_reg(gpe_event_info);
-       return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ev_disable_gpe
- *
- * PARAMETERS:  gpe_event_info          - GPE to disable
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Hardware-disable a GPE. Always disables the requested GPE,
- *              regardless of the type or number of references.
- *
- * Note: The GPE lock should be already acquired when this function is called.
- *
- ******************************************************************************/
-
-acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info)
-{
-       acpi_status status;
-
-       ACPI_FUNCTION_TRACE(ev_disable_gpe);
-
-
-       /*
-        * Note: Always disable the GPE, even if we think that that it is already
-        * disabled. It is possible that the AML or some other code has enabled
-        * the GPE behind our back.
-        */
-
-       /* Ensure the HW enable masks are current */
-
-       status = acpi_ev_update_gpe_enable_masks(gpe_event_info);
-       if (ACPI_FAILURE(status)) {
-               return_ACPI_STATUS(status);
-       }
-
-       /*
-        * Always H/W disable this GPE, even if we don't know the GPE type.
-        * Simply clear the enable bit for this particular GPE, but do not
-        * write out the current GPE enable mask since this may inadvertently
-        * enable GPEs too early. An example is a rogue GPE that has arrived
-        * during ACPICA initialization - possibly because AML or other code
-        * has enabled the GPE.
-        */
-       status = acpi_hw_low_disable_gpe(gpe_event_info);
-       return_ACPI_STATUS(status);
-}
-
 
 /*******************************************************************************
  *
@@ -451,10 +350,6 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context)
                return_VOID;
        }
 
-       /* Update the GPE register masks for return to enabled state */
-
-       (void)acpi_ev_update_gpe_enable_masks(gpe_event_info);
-
        /*
         * Take a snapshot of the GPE info for this level - we copy the info to
         * prevent a race condition with remove_handler/remove_block.
@@ -607,7 +502,7 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number)
                 * Disable the GPE, so it doesn't keep firing before the method has a
                 * chance to run (it runs asynchronously with interrupts enabled).
                 */
-               status = acpi_ev_disable_gpe(gpe_event_info);
+               status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE);
                if (ACPI_FAILURE(status)) {
                        ACPI_EXCEPTION((AE_INFO, status,
                                        "Unable to disable GPE[0x%2X]",
@@ -644,7 +539,7 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number)
                 * Disable the GPE. The GPE will remain disabled a handler
                 * is installed or ACPICA is restarted.
                 */
-               status = acpi_ev_disable_gpe(gpe_event_info);
+               status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE);
                if (ACPI_FAILURE(status)) {
                        ACPI_EXCEPTION((AE_INFO, status,
                                        "Unable to disable GPE[0x%2X]",