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pmdomain:rockchip: Fix init genpd as GENPD_STATE_ON before regulator ready

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RK3588_PD_NPU initialize as GENPD_STATE_ON before regulator ready.
rknn_iommu initlized success and suspend RK3588_PD_NPU. When rocket
driver register, it will resume rknn_iommu.

If regulator is still not ready at this point, rknn_iommu resume fail,
pm runtime status will be error: -EPROBE_DEFER.

This patch set pmdomain to off if it need regulator during probe,
consumer device can power on pmdomain after regulator ready.

Signed-off-by: Frank Zhang <rmxpzlb@gmail.com>
Tested-by: Chaoyi Chen <chaoyi.chen@rock-chips.com>
Tested-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Fixes: db6df2e3fc ("pmdomain: rockchip: add regulator support")
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Frank Zhang
2025-12-16 13:52:47 +08:00
committed by Ulf Hansson
parent 3de4996649
commit 861d21c43c
1 changed files with 10 additions and 0 deletions
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10
drivers/pmdomain/rockchip/pm-domains.c
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@@ -879,6 +879,16 @@ static int rockchip_pm_add_one_domain(struct rockchip_pmu *pmu,
pd->genpd.name = pd->info->name;
else
pd->genpd.name = kbasename(node->full_name);
/*
* power domain's needing a regulator should default to off, since
* the regulator state is unknown at probe time. Also the regulator
* state cannot be checked, since that usually requires IP needing
* (a different) power domain.
*/
if (pd->info->need_regulator)
rockchip_pd_power(pd, false);
pd->genpd.power_off = rockchip_pd_power_off;
pd->genpd.power_on = rockchip_pd_power_on;
pd->genpd.attach_dev = rockchip_pd_attach_dev;