ACPICA: Make ACPI Power Management Timer (PM Timer) optional.

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

diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c
index 33b00d2..9d99f21 100644 (file)
--- a/drivers/acpi/acpica/tbfadt.c
+++ b/drivers/acpi/acpica/tbfadt.c
@@ -117,7 +117,7 @@ static struct acpi_fadt_info fadt_info_table[] = {
         ACPI_FADT_OFFSET(pm_timer_block),
         ACPI_FADT_OFFSET(pm_timer_length),
         ACPI_PM_TIMER_WIDTH,
-        ACPI_FADT_REQUIRED},
+        ACPI_FADT_SEPARATE_LENGTH},    /* ACPI 5.0A: Timer is optional */
 
        {"Gpe0Block",
         ACPI_FADT_OFFSET(xgpe0_block),
@@ -574,7 +574,7 @@ static void acpi_tb_validate_fadt(void)
 
                if (fadt_info_table[i].type & ACPI_FADT_REQUIRED) {
                        /*
-                        * Field is required (Pm1a_event, Pm1a_control, pm_timer).
+                        * Field is required (Pm1a_event, Pm1a_control).
                         * Both the address and length must be non-zero.
                         */
                        if (!address64->address || !length) {