From: Roger Lu <roger.lu@mediatek.com>
To: Matthias Brugger <matthias.bgg@gmail.com>,
Enric Balletbo Serra <eballetbo@gmail.com>,
Kevin Hilman <khilman@kernel.org>,
Nicolas Boichat <drinkcat@google.com>
Cc: Fan Chen <fan.chen@mediatek.com>,
Roger Lu <roger.lu@mediatek.com>,
Jia-wei Chang <jia-wei.chang@mediatek.com>,
<devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <linux-pm@vger.kernel.org>,
<Project_Global_Chrome_Upstream_Group@mediatek.com>
Subject: [PATCH v3 13/14] soc: mediatek: mtk-svs: add thermal voltage compensation if needed
Date: Tue, 3 Jan 2023 19:29:24 +0800 [thread overview]
Message-ID: <20230103112925.16554-14-roger.lu@mediatek.com> (raw)
In-Reply-To: <20230103112925.16554-1-roger.lu@mediatek.com>
Some extreme test environment may keep IC temperature very low or very high
during system boot stage. For stability concern, we add thermal voltage
compenstation if needed no matter svs bank phase is in init02 or mon mode.
Signed-off-by: Roger Lu <roger.lu@mediatek.com>
---
drivers/soc/mediatek/mtk-svs.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/drivers/soc/mediatek/mtk-svs.c b/drivers/soc/mediatek/mtk-svs.c
index 1b4798a9101c..581bb8373b0c 100644
--- a/drivers/soc/mediatek/mtk-svs.c
+++ b/drivers/soc/mediatek/mtk-svs.c
@@ -585,7 +585,7 @@ static int svs_adjust_pm_opp_volts(struct svs_bank *svsb)
}
/* Get thermal effect */
- if (svsb->phase == SVSB_PHASE_MON) {
+ if (!IS_ERR_OR_NULL(svsb->tzd)) {
ret = thermal_zone_get_temp(svsb->tzd, &tzone_temp);
if (ret || (svsb->temp > SVSB_TEMP_UPPER_BOUND &&
svsb->temp < SVSB_TEMP_LOWER_BOUND)) {
@@ -600,7 +600,8 @@ static int svs_adjust_pm_opp_volts(struct svs_bank *svsb)
temp_voffset += svsb->tzone_ltemp_voffset;
/* 2-line bank update all opp volts when running mon mode */
- if (svsb->type == SVSB_HIGH || svsb->type == SVSB_LOW) {
+ if (svsb->phase == SVSB_PHASE_MON && (svsb->type == SVSB_HIGH ||
+ svsb->type == SVSB_LOW)) {
opp_start = 0;
opp_stop = svsb->opp_count;
}
@@ -616,11 +617,6 @@ static int svs_adjust_pm_opp_volts(struct svs_bank *svsb)
/* do nothing */
goto unlock_mutex;
case SVSB_PHASE_INIT02:
- svsb_volt = max(svsb->volt[i], svsb->vmin);
- opp_volt = svs_bank_volt_to_opp_volt(svsb_volt,
- svsb->volt_step,
- svsb->volt_base);
- break;
case SVSB_PHASE_MON:
svsb_volt = max(svsb->volt[i] + temp_voffset, svsb->vmin);
opp_volt = svs_bank_volt_to_opp_volt(svsb_volt,
@@ -1714,7 +1710,7 @@ static int svs_bank_resource_setup(struct svs_platform *svsp)
}
}
- if (svsb->mode_support & SVSB_MODE_MON) {
+ if (!IS_ERR_OR_NULL(svsb->tzone_name)) {
svsb->tzd = thermal_zone_get_zone_by_name(svsb->tzone_name);
if (IS_ERR(svsb->tzd)) {
dev_err(svsb->dev, "cannot get \"%s\" thermal zone\n",
@@ -2158,6 +2154,7 @@ static struct svs_bank svs_mt8192_banks[] = {
.type = SVSB_LOW,
.set_freq_pct = svs_set_bank_freq_pct_v3,
.get_volts = svs_get_bank_volts_v3,
+ .tzone_name = "gpu1",
.volt_flags = SVSB_REMOVE_DVTFIXED_VOLT,
.mode_support = SVSB_MODE_INIT02,
.opp_count = MAX_OPP_ENTRIES,
@@ -2175,6 +2172,10 @@ static struct svs_bank svs_mt8192_banks[] = {
.core_sel = 0x0fff0100,
.int_st = BIT(0),
.ctl0 = 0x00540003,
+ .tzone_htemp = 85000,
+ .tzone_htemp_voffset = 0,
+ .tzone_ltemp = 25000,
+ .tzone_ltemp_voffset = 7,
},
{
.sw_id = SVSB_GPU,
--
2.18.0
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next prev parent reply other threads:[~2023-01-03 14:06 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-03 11:29 [PATCH v3 0/14] Enhance SVS's robustness Roger Lu
2023-01-03 11:29 ` [PATCH v3 01/14] soc: mediatek: mtk-svs: enable the IRQ later Roger Lu
2023-01-03 11:29 ` [PATCH v3 02/14] soc: mediatek: mtk-svs: Use pm_runtime_resume_and_get() in svs_init01() Roger Lu
2023-01-03 11:29 ` [PATCH v3 03/14] soc: mediatek: mtk-svs: clean up platform probing Roger Lu
2023-01-03 11:29 ` [PATCH v3 04/14] soc: mediatek: mtk-svs: improve readability of platform_probe Roger Lu
2023-01-03 11:29 ` [PATCH v3 05/14] soc: mediatek: mtk-svs: move svs_platform_probe into probe Roger Lu
2023-01-03 11:29 ` [PATCH v3 06/14] soc: mediatek: mtk-svs: delete superfluous platform data entries Roger Lu
2023-01-03 11:29 ` [PATCH v3 07/14] soc: mtk-svs: mt8183: refactor o_slope calculation Roger Lu
2023-01-03 11:29 ` [PATCH v3 08/14] soc: mediatek: mtk-svs: use svs get efuse common function Roger Lu
2023-01-03 11:29 ` [PATCH v3 09/14] soc: mediatek: mtk-svs: use svs clk control APIs Roger Lu
2023-01-03 11:29 ` [PATCH v3 10/14] soc: mediatek: mtk-svs: reset svs when svs_resume() fail Roger Lu
2023-01-03 11:29 ` [PATCH v3 11/14] soc: mediatek: mtk-svs: use common function to disable restore voltages Roger Lu
2023-01-03 11:29 ` [PATCH v3 12/14] soc: mediatek: mtk-svs: restore default voltages when svs_init02() fail Roger Lu
2023-01-03 11:29 ` Roger Lu [this message]
2023-01-03 11:29 ` [PATCH v3 14/14] soc: mediatek: mtk-svs: keep svs alive even though debug cmd create fail Roger Lu
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