[coreboot-gerrit] [S] Change in coreboot[master]: soc/amd/mendocino: Add STT support for dptc tablet mode

[Felix Held (Code Review)]

Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/73205 )

Change subject: soc/amd/mendocino: Add STT support for dptc tablet mode
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soc/amd/mendocino: Add STT support for dptc tablet mode

Add stt settings for dptc tablet mode.

BUG=b:257149501
BRANCH=None
TEST=Check if the STT value matches the clamshell/tablet mode.
Run the WebGL aquarium with 5000 fish and verify that there is
no power drop peak.

Change-Id: Ib4aad3af8761b20084717b15a462edf4704b83cc
Signed-off-by: Chris Wang 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73205
Reviewed-by: Tim Van Patten 
Tested-by: build bot (Jenkins) 
Reviewed-by: Frank Wu 
---
M src/soc/amd/mendocino/chip.h
M src/soc/amd/mendocino/root_complex.c
2 files changed, 30 insertions(+), 4 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Frank Wu: Looks good to me, approved
  Tim Van Patten: Looks good to me, approved

diff --git a/src/soc/amd/mendocino/chip.h b/src/soc/amd/mendocino/chip.h
index dc147f8..42f27cb 100644
--- a/src/soc/amd/mendocino/chip.h
+++ b/src/soc/amd/mendocino/chip.h
@@ -73,6 +73,10 @@
    uint32_t vrm_soc_current_limit_throttle_mA;

/* tablet mode.*/
+	uint16_t stt_m1_tablet;
+	uint16_t stt_m2_tablet;
+	uint16_t stt_c_apu_tablet;
+	uint16_t stt_alpha_apu_tablet;

/* Thermal profile B*/
    uint32_t fast_ppt_limit_mW_B;
diff --git a/src/soc/amd/mendocino/root_complex.c b/src/soc/amd/mendocino/root_complex.c
index dce9498..6217246 100644
--- a/src/soc/amd/mendocino/root_complex.c
+++ b/src/soc/amd/mendocino/root_complex.c
@@ -264,10 +264,10 @@
    	config->vrm_maximum_current_limit_mA,
    	config->vrm_soc_current_limit_mA,
    	config->stt_min_limit,
-		config->stt_m1,
-		config->stt_m2,
-		config->stt_c_apu,
-		config->stt_alpha_apu,
+		config->stt_m1_tablet,
+		config->stt_m2_tablet,
+		config->stt_c_apu_tablet,
+		config->stt_alpha_apu_tablet,
    	config->stt_skin_temp_apu);
    acpigen_write_alib_dptc_tablet((uint8_t *)&tablet_input, sizeof(tablet_input));
 #endif