soc/amd/mendocino: add dptc tablet mode support

add dptc support for different power parameter on tablet/clamshell
mode.

BUG=b:257187831
BRANCH=none
TEST=validate the parameter change for each mode by AGT.

Signed-off-by: Chris.Wang <chris.wang@amd.corp-partner.google.com>
Change-Id: I96e04d113d18b42f3457056a5e4fa311ceccffb3
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70670
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>
Reviewed-by: John Su <john_su@compal.corp-partner.google.com>
Reviewed-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Reviewed-by: Frank Wu <frank_wu@compal.corp-partner.google.com>

src/mainboard/google/skyrim/Kconfig

@@ -164,11 +164,4 @@ config ENABLE_STB_SPILL_TO_DRAM
 	  just the small SRAM buffer to a much larger area reserved in main
 	  memory.
 
-config FEATURE_DYNAMIC_DPTC
-	bool
-	depends on SOC_AMD_COMMON_BLOCK_ACPI_DPTC
-	help
-	  Selected by mainboards that implement support for ALIB
-	  to enable dynamic DPTC.
-
 endif # BOARD_GOOGLE_BASEBOARD_SKYRIM

src/soc/amd/mendocino/Kconfig

@@ -324,6 +324,20 @@ config ACPI_SSDT_PSD_INDEPENDENT
 	  cores to transition between p-states independently. A vendor may
 	  choose to generate _PSD object to allow cores to transition together.
 
+config FEATURE_DYNAMIC_DPTC
+	bool
+	depends on SOC_AMD_COMMON_BLOCK_ACPI_DPTC
+	help
+	  Selected by mainboards that implement support for ALIB
+	  to enable dynamic DPTC.
+
+config FEATURE_TABLET_MODE_DPTC
+	bool
+	depends on SOC_AMD_COMMON_BLOCK_ACPI_DPTC
+	help
+	  Selected by mainboards that implement support for ALIB to
+	  switch default and tablet mode.
+
 menu "PSP Configuration Options"
 
 config AMD_FWM_POSITION_INDEX

src/soc/amd/mendocino/chip.h

@@ -74,6 +74,9 @@ struct soc_amd_mendocino_config {
 	uint32_t vrm_maximum_current_limit_throttle_mA;
 	uint32_t vrm_soc_current_limit_throttle_mA;
 
+	/* tablet mode.*/
+	uint32_t sustained_power_limit_mW_tablet;
+
 	/* Thermal profile B*/
 	uint32_t fast_ppt_limit_mW_B;
 	uint32_t slow_ppt_limit_mW_B;

src/soc/amd/mendocino/root_complex.c

@@ -255,6 +255,24 @@ static void acipgen_dptci(void)
 	acpigen_write_alib_dptc_no_battery((uint8_t *)&no_battery_input,
 		sizeof(no_battery_input));
 
+#if (CONFIG(FEATURE_TABLET_MODE_DPTC))
+	struct dptc_input tablet_input = DPTC_INPUTS(
+		config->thermctl_limit_degreeC,
+		config->sustained_power_limit_mW_tablet,
+		config->slow_ppt_time_constant_s,
+		config->fast_ppt_limit_mW,
+		config->slow_ppt_limit_mW,
+		config->vrm_current_limit_mA,
+		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_skin_temp_apu);
+	acpigen_write_alib_dptc_tablet((uint8_t *)&tablet_input, sizeof(tablet_input));
+#endif
+
 #if (CONFIG(FEATURE_DYNAMIC_DPTC))
 	/* Profile B */
 	struct dptc_input thermal_B_input = DPTC_INPUTS(