Miquel Raynal d8e4ebf870 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>

2023-06-22 15:03:18 +01:00

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ad7877.h

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ads7846.h

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altera.h

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at73c213.h

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corgi_lcd.h

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ds1305.h

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eeprom.h

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flash.h

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libertas_spi.h

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max7301.h

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mc33880.h

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mmc_spi.h

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mxs-spi.h

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pxa2xx_spi.h

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rspi.h

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sh_hspi.h

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sh_msiof.h

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spi_bitbang.h

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spi_gpio.h

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spi_oc_tiny.h

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spi-fsl-dspi.h

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spi-mem.h

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spi.h

spi: Create a helper to derive adaptive timeouts

2023-06-22 15:03:18 +01:00

tdo24m.h

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tle62x0.h

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xilinx_spi.h

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