[coreboot-gerrit] [S] Change in coreboot[main]: mb/google/trulo/var/uldrenite: Enable DPTF oem_variables

[John Su (Code Review)]

John Su has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/86394?usp=email )

Change subject: mb/google/trulo/var/uldrenite: Enable DPTF oem_variables
......................................................................

mb/google/trulo/var/uldrenite: Enable DPTF oem_variables

Support oem_variables and change based on EC notify event.

BUG=b:394177292
BRANCH=firmware-trulo-15217.771.B
TEST=emerge-nissa coreboot

Change-Id: Iac18cb968906a9dfe53836432ba8dbefee1dcc8e
Signed-off-by: John Su 
---
M src/mainboard/google/brya/variants/uldrenite/include/variant/ec.h
M src/mainboard/google/brya/variants/uldrenite/overridetree.cb
M src/mainboard/google/brya/variants/uldrenite/variant.c
3 files changed, 24 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/94/86394/1

diff --git a/src/mainboard/google/brya/variants/uldrenite/include/variant/ec.h b/src/mainboard/google/brya/variants/uldrenite/include/variant/ec.h
index 7a2a6ff..818cdef 100644
--- a/src/mainboard/google/brya/variants/uldrenite/include/variant/ec.h
+++ b/src/mainboard/google/brya/variants/uldrenite/include/variant/ec.h
@@ -5,4 +5,7 @@

#include <baseboard/ec.h>

+/* Enable DPTF OEM variable */
+#define DPTF_ENABLE_OEM_VARIABLES
+
 #endif
diff --git a/src/mainboard/google/brya/variants/uldrenite/overridetree.cb b/src/mainboard/google/brya/variants/uldrenite/overridetree.cb
index 285db4a..dc83425 100644
--- a/src/mainboard/google/brya/variants/uldrenite/overridetree.cb
+++ b/src/mainboard/google/brya/variants/uldrenite/overridetree.cb
@@ -236,7 +236,11 @@
    				[3] = {   8,  500 }
    			}"

-				device generic 0 on end
+				register "oem_data.oem_variables" = "{
+						[0] = 0x0
+				}"
+
+				device generic 0 alias dptf_policy on end
    		end
    	end # DPTF
    	device ref tcss_xhci on
diff --git a/src/mainboard/google/brya/variants/uldrenite/variant.c b/src/mainboard/google/brya/variants/uldrenite/variant.c
index 41ab7b8..fdc0edf 100644
--- a/src/mainboard/google/brya/variants/uldrenite/variant.c
+++ b/src/mainboard/google/brya/variants/uldrenite/variant.c
@@ -6,6 +6,8 @@
 #include <delay.h>
 #include <fw_config.h>
 #include <sar.h>
+#include <device/pci.h>
+#include <drivers/intel/dptf/chip.h>

#define RW350R_RST_DELAY_MS 20
 #define RW350R_PERST_DELAY_MS 30
@@ -83,3 +85,17 @@
    mdelay(RW350R_PERST_DELAY_MS);
    gpio_configure_pads(rw350r_perst_pad, ARRAY_SIZE(rw350r_perst_pad));
 }
+
+WEAK_DEV_PTR(dptf_policy);
+
+static void update_oem_variables(void)
+{
+	const struct device *policy_dev = DEV_PTR(dptf_policy);
+	struct drivers_intel_dptf_config *config = policy_dev->chip_info;
+	config->oem_data.oem_variables[0] = 1;
+}
+
+void variant_devtree_update(void)
+{
+	update_oem_variables();
+}