[coreboot-gerrit] Change in coreboot[master]: soc/amd/picasso: Add STAPM_TIME_CONSTANT DPTC parameter support

[John Su (Code Review)]

John Su has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/46377 )

Change subject: soc/amd/picasso: Add STAPM_TIME_CONSTANT DPTC parameter support
......................................................................

soc/amd/picasso: Add STAPM_TIME_CONSTANT DPTC parameter support

Add STAPM_TIME_CONSTANT DPTC parameter for clamshell/tablet mode.

BUG=b:170696020
BRANCH=zork
TEST=build

Signed-off-by: John Su 
Change-Id: I42956efbb95e21e4e8d86a209e64d3b33bdefba8
---
M src/soc/amd/picasso/chip.h
M src/soc/amd/picasso/root_complex.c
2 files changed, 11 insertions(+), 3 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/77/46377/1

diff --git a/src/soc/amd/picasso/chip.h b/src/soc/amd/picasso/chip.h
index 3098a81..2f207ba 100644
--- a/src/soc/amd/picasso/chip.h
+++ b/src/soc/amd/picasso/chip.h
@@ -114,6 +114,7 @@
    /* STAPM Configuration for tablet mode (need enable dptc_enable first) */
    uint32_t fast_ppt_limit_tablet_mode;
    uint32_t slow_ppt_limit_tablet_mode;
+	uint32_t stapm_time_constant_tablet_mode;
    uint32_t sustained_power_limit_tablet_mode;

/* PROCHOT_L de-assertion Ramp Time */
diff --git a/src/soc/amd/picasso/root_complex.c b/src/soc/amd/picasso/root_complex.c
index 174cddc..f61b33c 100644
--- a/src/soc/amd/picasso/root_complex.c
+++ b/src/soc/amd/picasso/root_complex.c
@@ -17,11 +17,12 @@

enum {
    ALIB_DPTCI_FUNCTION_ID = 0xc,
+	STAPM_TIME_CONSTANT = 0x1,
    THERMAL_CONTROL_LIMIT_ID = 0x3,
    SUSTAINED_POWER_LIMIT_PARAM_ID = 0x5,
    FAST_PPT_LIMIT_PARAM_ID = 0x6,
    SLOW_PPT_LIMIT_PARAM_ID = 0x7,
-	DPTC_TOTAL_UPDATE_PARAMS = 4,
+	DPTC_TOTAL_UPDATE_PARAMS = 5,
 };

struct dptc_param {
@@ -34,11 +35,15 @@
    struct dptc_param params[DPTC_TOTAL_UPDATE_PARAMS];
 } __packed;

-#define DPTC_INPUTS(_thermctllmit, _sustained, _fast, _slow)			\
+#define DPTC_INPUTS(_stapmtimeconstant, _thermctllmit, _sustained, _fast, _slow)\
    	{								\
    		.size = sizeof(struct dptc_input),			\
    		.params = {						\
    			{						\
+					.id = STAPM_TIME_CONSTANT,		\
+					.value = _stapmtimeconstant,		\
+				},						\
+				{						\
    				.id = THERMAL_CONTROL_LIMIT_ID,		\
    				.value = _thermctllmit,			\
    			},						\
@@ -200,11 +205,13 @@
    if (!config->dptc_enable)
    	return;

-	struct dptc_input default_input = DPTC_INPUTS(config->thermctl_limit,
+	struct dptc_input default_input = DPTC_INPUTS(config->stapm_time_constant,
+							config->thermctl_limit,
    						config->sustained_power_limit,
    						config->fast_ppt_limit,
    						config->slow_ppt_limit);
    struct dptc_input tablet_mode_input = DPTC_INPUTS(
+					config->stapm_time_constant_tablet_mode,
    				config->thermctl_limit_tablet_mode,
    				config->sustained_power_limit_tablet_mode,
    				config->fast_ppt_limit_tablet_mode,