From: Daniel Lezcano <daniel.lezcano@oss.qualcomm.com>
To: rafael@kernel.org
Cc: linux-pm@vger.kernel.org, shuah@kernel.org,
linux-kselftest@vger.kernel.org,
manaf.pallikunhi@oss.qualcomm.com
Subject: [PATCH v2 3/6] powercap: dtpm: Remove duplicate RK3399 CPU hierarchy nodes
Date: Wed, 23 Sep 2026 16:34:13 +0200 [thread overview]
Message-ID: <20260923143416.3713485-4-daniel.lezcano@oss.qualcomm.com> (raw)
In-Reply-To: <20260923143416.3713485-1-daniel.lezcano@oss.qualcomm.com>
The DTPM CPU backend registers one powercap zone per cpufreq policy,
not per CPU. On RK3399, CPUs sharing the same cpufreq policy therefore
map to the same DTPM zone.
Remove the redundant CPU nodes from the RK3399 hierarchy and keep only
one CPU node per cpufreq policy. This avoids registering the same DTPM
CPU zone multiple times while preserving the two CPU clusters and the
GPU in the hierarchy.
Signed-off-by: Daniel Lezcano <daniel.lezcano@oss.qualcomm.com>
---
drivers/soc/rockchip/dtpm.c | 18 +++---------------
1 file changed, 3 insertions(+), 15 deletions(-)
diff --git a/drivers/soc/rockchip/dtpm.c b/drivers/soc/rockchip/dtpm.c
index b36d4f752c30..e6a0c607334b 100644
--- a/drivers/soc/rockchip/dtpm.c
+++ b/drivers/soc/rockchip/dtpm.c
@@ -20,25 +20,13 @@ static struct dtpm_node __initdata rk3399_hierarchy[] = {
[2] = { .name = "/cpus/cpu@0",
.type = DTPM_NODE_DT,
.parent = &rk3399_hierarchy[1] },
- [3] = { .name = "/cpus/cpu@1",
+ [3] = { .name = "/cpus/cpu@100",
.type = DTPM_NODE_DT,
.parent = &rk3399_hierarchy[1] },
- [4] = { .name = "/cpus/cpu@2",
+ [4] = { .name = "/gpu@ff9a0000",
.type = DTPM_NODE_DT,
.parent = &rk3399_hierarchy[1] },
- [5] = { .name = "/cpus/cpu@3",
- .type = DTPM_NODE_DT,
- .parent = &rk3399_hierarchy[1] },
- [6] = { .name = "/cpus/cpu@100",
- .type = DTPM_NODE_DT,
- .parent = &rk3399_hierarchy[1] },
- [7] = { .name = "/cpus/cpu@101",
- .type = DTPM_NODE_DT,
- .parent = &rk3399_hierarchy[1] },
- [8] = { .name = "/gpu@ff9a0000",
- .type = DTPM_NODE_DT,
- .parent = &rk3399_hierarchy[1] },
- [9] = { /* sentinel */ }
+ [5] = { /* sentinel */ }
};
static struct of_device_id __initdata rockchip_dtpm_match_table[] = {
--
2.43.0
next prev parent reply other threads:[~2026-09-23 14:34 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-23 14:34 [PATCH v2 0/6] powercap: Add generic hierarchy support and convert DTPM Daniel Lezcano
2026-09-23 14:34 ` [PATCH v2 1/6] powercap: Add generic zone hierarchy creation helpers Daniel Lezcano
2026-09-29 18:02 ` Rafael J. Wysocki (Intel)
2026-09-23 14:34 ` [PATCH v2 2/6] selftests/powercap: Add powercap hierarchy creation API tests Daniel Lezcano
2026-09-23 14:34 ` Daniel Lezcano [this message]
2026-09-23 14:34 ` [PATCH v2 4/6] powercap: dtpm: Use generic powercap hierarchy helpers Daniel Lezcano
2026-09-23 14:34 ` [PATCH v2 5/6] powercap: dtpm: Rename Rockchip virtual node descriptor Daniel Lezcano
2026-09-23 14:34 ` [PATCH v2 6/6] powercap: dtpm: Add RK3588 hierarchy Daniel Lezcano
2026-09-28 21:13 ` [PATCH v2 0/6] powercap: Add generic hierarchy support and convert DTPM Daniel Lezcano
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