linux/drivers/pmdomain
Peng Fan 52dd070c62 pmdomain: imx: wait SSAR when i.MX93 power domain on
With "quiet" set in bootargs, there is power domain failure:
"imx93_power_domain 44462400.power-domain: pd_off timeout: name:
 44462400.power-domain, stat: 4"

The current power on opertation takes ISO state as power on finished
flag, but it is wrong. Before powering on operation really finishes,
powering off comes and powering off will never finish because the last
powering on still not finishes, so the following powering off actually
not trigger hardware state machine to run. SSAR is the last step when
powering on a domain, so need to wait SSAR done when powering on.

Since EdgeLock Enclave(ELE) handshake is involved in the flow, enlarge
the waiting time to 10ms for both on and off to avoid timeout.

Cc: stable@vger.kernel.org
Fixes: 0a0f7cc25d ("soc: imx: add i.MX93 SRC power domain driver")
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20240814124740.2778952-1-peng.fan@oss.nxp.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2024-08-15 12:47:09 +02:00
..
actions
amlogic pmdomain: amlogic: Constify struct meson_secure_pwrc_domain_desc 2024-07-09 13:10:39 +02:00
apple
arm pmdomain: arm: scmi_pm_domain: set flag GENPD_FLAG_ACTIVE_WAKEUP 2024-06-05 11:54:43 +02:00
bcm
imx pmdomain: imx: wait SSAR when i.MX93 power domain on 2024-08-15 12:47:09 +02:00
mediatek pmdomain: mediatek: Add MT8188 buck isolation setting 2024-04-04 11:45:36 +02:00
qcom pmdomain: qcom: rpmhpd: Skip retention level for Power Domains 2024-07-09 12:47:46 +02:00
renesas pmdomain: renesas: rmobile-sysc: Use for_each_child_of_node_scoped() 2024-06-05 11:52:39 +02:00
rockchip
samsung
st
starfive
sunxi
tegra
ti pmdomain: ti-sci: Fix duplicate PD referrals 2024-05-03 15:20:05 +02:00
xilinx
core.c PM: domains: Add the domain HW-managed mode to the summary 2024-07-09 12:59:58 +02:00
governor.c
Kconfig
Makefile