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| H A D | mmio_poll.h | 7a1970f4ad497c9f83595fc321f58aa58549e369 Wed May 21 06:24:44 UTC 2025 Ghennadi Procopciuc <ghennadi.procopciuc@nxp.com> feat(lib): add mmio read with timeout
In several cases, drivers poll a register using a blocking 'while'
or 'for' loop without a timeout mechanism. Introducing a timeout
would be beneficial, as it allows the system to log an error and
delegate the decision to the caller - whether to continue execution
or halt with a panic.
To address this, the mmio_read_poll_timeout() helper can be used. It
exits with -ETIMEDOUT if the timeout is reached, or 0 on success.
Additionally, the final value read from the register is stored in the
'val' variable, avoiding the need for an extra read after polling
completes.
Change-Id: I2ef53299b12ece6bc7be0e1234d5c2708e36ecf9
Signed-off-by: Ghennadi Procopciuc <ghennadi.procopciuc@nxp.com>
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