tpm: use DEFINE_SIMPLE_DEV_PM_OPS and pm_sleep_ptr()

Replace the deprecated SIMPLE_DEV_PM_OPS with DEFINE_SIMPLE_DEV_PM_OPS
and wrap the struct assignment with pm_sleep_ptr(). The old code keeps
a completely empty dev_pm_ops structure -- all callbacks are NULL --
as dead code in the object file when CONFIG_PM_SLEEP=n, because
SET_SYSTEM_SLEEP_PM_OPS() expands to nothing while __maybe_unused on
the struct only silences the warning without removing the struct.
Switching to DEFINE_SIMPLE_DEV_PM_OPS() lets pm_sleep_ptr() eliminate
the callback references at compile time, and wrapping the struct
assignment with pm_sleep_ptr() drops the entire structure when
CONFIG_PM_SLEEP is disabled, instead of retaining an empty one.

Signed-off-by: Li Jun <lijun01@kylinos.cn>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Link: https://lore.kernel.org/r/20260909082459.796628-1-lijun01@kylinos.cn
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>

0 files changed, 0 insertions, 0 deletions