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sm8750: Prevent ACD clamp #3045

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sm8750: Prevent ACD clamp #3045

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26 changes: 26 additions & 0 deletions ...IX/devices/SM8750/patches/linux/0052-pmdomain-qcom-rpmhpd-no-max-clamp-on-gmu-rails.patch
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@@ -0,0 +1,26 @@
Subject: [PATCH] pmdomain: qcom: rpmhpd: don't clamp GMU-managed rails pre-sync_state

Mark gfx/gmxc state_synced from boot so pre-sync votes use the real
lowest corner instead. These rails carry no bootloader state and
have no other consumers, so the clamp protects nothing on them.

---
diff --git a/drivers/pmdomain/qcom/rpmhpd.c b/drivers/pmdomain/qcom/rpmhpd.c
--- a/drivers/pmdomain/qcom/rpmhpd.c
+++ b/drivers/pmdomain/qcom/rpmhpd.c
@@ -120,6 +120,7 @@ static struct rpmhpd gbx = {
static struct rpmhpd gfx = {
.pd = { .name = "gfx", },
.res_name = "gfx.lvl",
+ .state_synced = true,
};

static struct rpmhpd lcx = {
@@ -225,6 +226,7 @@ static struct rpmhpd qphy = {
static struct rpmhpd gmxc = {
.pd = { .name = "gmxc", },
.res_name = "gmxc.lvl",
+ .state_synced = true,
};

/* Eliza RPMH powerdomains */