Josie Nordrum has uploaded this change for review.

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mb/google/zork: Generate acpi methods in mainboard.c

Generate acpi methods which enable and disable backlight during _INI,
_WAK, and _PTS.

BUG=b:158087989
BRANCH=Zork
EST=check backlight during reboot and suspend

Signed-off-by: Josie Nordrum <JosieNordrum@google.com>
Change-Id: I2f3434dc92de1f697693ff69ca15bd76647b89a2
---
M src/mainboard/google/zork/mainboard.c
1 file changed, 47 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/71/46671/1

diff --git a/src/mainboard/google/zork/mainboard.c b/src/mainboard/google/zork/mainboard.c
index f0d9a28..1049d6b 100644
--- a/src/mainboard/google/zork/mainboard.c
+++ b/src/mainboard/google/zork/mainboard.c
@@ -6,6 +6,7 @@
 #include <device/device.h>
 #include <device/mmio.h>
 #include <acpi/acpi.h>
+#include <acpi/acpigen.h>
 #include <acpi/acpi_gnvs.h>
 #include <amdblocks/amd_pci_util.h>
 #include <amdblocks/gpio_banks.h>
@@ -175,6 +176,50 @@
 	variant_get_dxio_ddi_descriptors(dxio_descs, dxio_num, ddi_descs, ddi_num);
 }
 
+static void mainboard_write_blken(void)
+{
+       acpigen_write_method("\\_SB.BKEN", 0);
+       acpigen_soc_clear_tx_gpio(GPIO_85);
+       acpigen_pop_len();
+}
+
+static void mainboard_write_blkdis(void)
+{
+       acpigen_write_method("\\_SB.BKDS", 0);
+       acpigen_soc_set_tx_gpio(GPIO_85);
+       acpigen_pop_len();
+}
+
+static void mainboard_write_mini(void)
+{
+       acpigen_write_method("\\_SB.MINI", 0);
+       acpigen_emit_namestring("\\_SB.BKEN");
+       acpigen_pop_len();
+}
+
+static void mainboard_write_mwak(void)
+{
+       acpigen_write_method("\\_SB.MWAK", 0);
+       acpigen_emit_namestring("\\_SB.BKEN");
+       acpigen_pop_len();
+}
+
+static void mainboard_write_mpts(void)
+{
+       acpigen_write_method("\\_SB.MPTS", 0);
+       acpigen_emit_namestring("\\_SB.BKDS");
+       acpigen_pop_len();
+}
+
+static void mainboard_fill_ssdt(const struct device *dev)
+{
+       mainboard_write_blken();
+       mainboard_write_blkdis();
+       mainboard_write_mini();
+       mainboard_write_mpts();
+       mainboard_write_mwak();
+}
+
 /*************************************************
  * Dedicated mainboard function
  *************************************************/
@@ -186,6 +231,8 @@
 	pirq_setup();
 
 	dev->ops->acpi_inject_dsdt = chromeos_dsdt_generator;
+	dev->ops->acpi_fill_ssdt = mainboard_fill_ssdt;
+
 }
 
 static void mainboard_final(void *chip_info)

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