[PATCH 1/1] soc: imx: imx93-blk-ctrl: Add dedicated lockdep class for nested genpd locks

[Shawn Guo]

On Thu, Jul 06, 2023 at 09:46:29AM +0200, Alexander Stein wrote:
> This is the same approach as being used within imx8mp-blk-ctrl. This fixes
> the lockdep warning about 'possible recursive locking detected' with the
> following (reduced) backtrace:
> genpd_lock_mtx+0x14/0x1c
> genpd_runtime_resume+0x108/0x308
> __rpm_callback+0x44/0x19c
> rpm_callback+0x64/0x70
> rpm_resume+0x438/0x6d8
> __pm_runtime_resume+0x54/0xb0
> imx93_blk_ctrl_power_on+0x100/0x294
> _genpd_power_on+0x8c/0x16c
> genpd_power_on.part.0+0xa0/0x1a0
> __genpd_dev_pm_attach+0x14c/0x2e4
> genpd_dev_pm_attach+0x58/0x64
> dev_pm_domain_attach+0x1c/0x2c
> 
> Signed-off-by: Alexander Stein <alexander.stein at ew.tq-group.com>

Applied, thanks!