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author | Miquel Raynal <miquel.raynal@bootlin.com> | 2023-06-22 12:06:32 +0300 |
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committer | Mark Brown <broonie@kernel.org> | 2023-06-22 17:03:18 +0300 |
commit | d8e4ebf87018736c0c29e2eb4afe3915156483cd (patch) | |
tree | 30908475d53e3628c426a06a18c805fd7050970c /drivers/spi/spi-atmel.c | |
parent | e6afe03351ac81fbc4f2b93bf3b356f7b662939d (diff) | |
download | linux-d8e4ebf87018736c0c29e2eb4afe3915156483cd.tar.xz |
spi: Create a helper to derive adaptive timeouts
Big transfers might take a bit of time, too constraining timeouts might
lead to false positives. In order to simplify the drivers work and with
the goal of factorizing code in mind, let's add a helper that can be
used by any spi controller driver to derive a relevant per-transfer
timeout value.
The logic is simple: we know how much time it would take to transfer a
byte, we can easily derive the total theoretical amount of time involved
for each transfer. We multiply it by two to have a bit of margin and
enforce a minimum of 500ms.
Suggested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/Message-Id: <20230622090634.3411468-2-miquel.raynal@bootlin.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-atmel.c')
0 files changed, 0 insertions, 0 deletions