diff options
| author | Jacky Bai <ping.bai@nxp.com> | 2020-03-24 17:04:11 +0800 |
|---|---|---|
| committer | Dong Aisheng <aisheng.dong@nxp.com> | 2021-11-02 17:08:39 +0800 |
| commit | f863fe3d778a598557503085555be14654a2295e (patch) | |
| tree | d77ee091ca52222063356b4e55b741890837edff | |
| parent | aad5af3768628f697335a4cfbe496b0d710a4d4e (diff) | |
MLK-23671-01 soc: imx: Add the rpm always on flag if necessary
Some power domain need to be runtime always on to keep
the peripherals's weekup ability, for such power domain,
add the 'GENPD_FLAG_RPM_ALWAYS_ON' flag.
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Anson Huang <Anson.Huang@nxp.com>
| -rw-r--r-- | Documentation/devicetree/bindings/power/fsl,imx8m-genpd.txt | 1 | ||||
| -rw-r--r-- | drivers/soc/imx/imx8m_pm_domains.c | 4 |
2 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/power/fsl,imx8m-genpd.txt b/Documentation/devicetree/bindings/power/fsl,imx8m-genpd.txt index ce2a1dffd641..8f7d5f3e5d8a 100644 --- a/Documentation/devicetree/bindings/power/fsl,imx8m-genpd.txt +++ b/Documentation/devicetree/bindings/power/fsl,imx8m-genpd.txt @@ -20,6 +20,7 @@ Optional properties: - parent-domains: the phandle to the parent power domain - active-wakeup: keep the PM domain powered in case the attached device wakeup is enabled. + - rpm-always-on: keep the PM domain powered except for system suspend. example: vpu_g1_pd: vpug1-pd { diff --git a/drivers/soc/imx/imx8m_pm_domains.c b/drivers/soc/imx/imx8m_pm_domains.c index 72d328f29b38..6a0178c5727a 100644 --- a/drivers/soc/imx/imx8m_pm_domains.c +++ b/drivers/soc/imx/imx8m_pm_domains.c @@ -181,8 +181,10 @@ static int imx8m_pm_domain_probe(struct platform_device *pdev) domain->pd.power_on = imx8m_pd_power_on; if (of_property_read_bool(np, "active-wakeup")) domain->pd.flags |= GENPD_FLAG_ACTIVE_WAKEUP; + if (of_property_read_bool(np, "rpm-always-on")) + domain->pd.flags |= GENPD_FLAG_RPM_ALWAYS_ON; - pm_genpd_init(&domain->pd, NULL, true); + pm_genpd_init(&domain->pd, NULL, !(domain->pd.flags & GENPD_FLAG_RPM_ALWAYS_ON)); ret = of_genpd_add_provider_simple(np, &domain->pd); if (ret) { |