Hi,
We are testing am62a7 evm board with Linux BSP.
If board is put to deep sleep/freeze state below error is shown and board is not going to deep sleep state
root@am62axx-evm:~# echo mem > /sys/power/state
[ 63.465176] PM: suspend entry (deep)
[ 63.495321] Filesystems sync: 0.026 seconds
[ 63.512225] Freezing user space processes ... (elapsed 0.001 seconds) done.
[ 63.520816] OOM killer disabled.
[ 63.524045] Freezing remaining freezable tasks ... (elapsed 0.000 seconds) done.
[ 63.532392] printk: Suspending console(s) (use no_console_suspend to debug)
[ 63.548690] omap-mailbox 29010000.mailbox: fifo 2 has unexpected unread messages
[ 63.548710] PM: dpm_run_callback(): platform_pm_suspend+0x0/0x78 returns -16
[ 63.548715] PM: Device 29010000.mailbox failed to suspend: error -16
[ 63.548719] PM: Some devices failed to suspend, or early wake event detected
[ 63.550833] PM: dpm_run_callback(): platform_pm_resume+0x0/0x78 returns -19
[ 63.550841] PM: Device bus@f0000:interrupt-controller@a00000 failed to resume: error -19
[ 63.552606] am65-cpsw-nuss 8000000.ethernet: set new flow-id-base 19
[ 63.565865] am65-cpsw-nuss 8000000.ethernet eth0: PHY [8000f00.mdio:00] driver [TI DP83867] (irq=POLL)
[ 63.565881] am65-cpsw-nuss 8000000.ethernet eth0: configuring for phy/rgmii-rxid link mode
[ 63.772685] OOM killer enabled.
[ 63.775823] Restarting tasks ... done.
[ 63.780804] PM: suspend exit
-sh: echo: write error: Device or resource busy
root@am62axx-evm:~# [ 63.892823] mmc0: switch to bus width 8 failed
[ 63.901148] mmc0: switch to bus width 4 failed
[ 63.911130] mmc0: mmc_select_hs200 failed, error -22
[ 63.916108] mmc0: error -22 whilst initialising MMC card
[ 64.050358] mmc0: switch to bus width 8 failed
[ 64.059696] mmc0: switch to bus width 4 failed
[ 64.069681] mmc0: mmc_select_hs200 failed, error -22
[ 64.074655] mmc0: error -22 whilst initialising MMC card
[ 64.220923] mmc0: switch to bus width 8 failed
[ 64.232650] mmc0: switch to bus width 4 failed
[ 64.242638] mmc0: mmc_select_hs200 failed, error -22
[ 64.247625] mmc0: error -22 whilst initialising MMC card
[ 64.434959] mmc0: switch to bus width 8 failed
[ 64.453833] mmc0: switch to bus width 4 failed
[ 64.463806] mmc0: mmc_select_hs200 failed, error -22
[ 64.468791] mmc0: error -22 whilst initialising MMC card
Is low power mode/ deep sleep supported in Linux BSP?
