ACPICA: New: acpi_read and acpi_write public interfaces

Changed the acpi_hw_low_level_read and acpi_hw_low_level_write functions to
the public acpi_read and acpi_write to allow direct access to
ACPI registers.  Removed the "width" parameter since the width
can be obtained from the input GAS structure. Updated the FADT
initialization to setup the GAS structures with the proper
widths. Some widths are still hardcoded because many FADTs have
incorrect register lengths.

Signed-off-by: Bob Moore <robert.moore@intel.com
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 4 insertions, 8 deletions

diff --git a/drivers/acpi/events/evgpe.c b/drivers/acpi/events/evgpe.c
index 12b49d312ad3..a54885993ed3 100644
--- a/drivers/acpi/events/evgpe.c
+++ b/drivers/acpi/events/evgpe.c
@@ -422,10 +422,8 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
                         /* Read the Status Register */
 
                         status =
-                            acpi_hw_low_level_read(ACPI_GPE_REGISTER_WIDTH,
-                                                   &status_reg,
-                                                   &gpe_register_info->
-                                                   status_address);
+                            acpi_read(&status_reg,
+                                      &gpe_register_info->status_address);
                         if (ACPI_FAILURE(status)) {
                                 goto unlock_and_exit;
                         }
@@ -433,10 +431,8 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
                         /* Read the Enable Register */
 
                         status =
-                            acpi_hw_low_level_read(ACPI_GPE_REGISTER_WIDTH,
-                                                   &enable_reg,
-                                                   &gpe_register_info->
-                                                   enable_address);
+                            acpi_read(&enable_reg,
+                                      &gpe_register_info->enable_address);
                         if (ACPI_FAILURE(status)) {
                                 goto unlock_and_exit;
                         }