Re: [PATCH 3/5] spi: Use a 32-bit DT property for spi-cs-setup-delay-ns

[Mark Brown]

On Wed, Jan 04, 2023 at 06:36:29PM +0900, Janne Grunau wrote:

> 65us is not a reasonable maximum for this property, as some devices
> might need a much longer setup time (e.g. those driven by firmware on
> the other end). Plus, device tree property values are in 32-bit cells
> and smaller widths should not be used without good reason.

This breaks allmodconfig builds (I tested x86 but this should happen
for anything with -Werror):

/build/stage/linux/drivers/spi/spi.c: In function ‘of_spi_parse_dt’:
/build/stage/linux/drivers/spi/spi.c:2243:13: error: unused variable ‘cs_setup’ [-Werror=unused-variable]
 2243 |         u16 cs_setup;
      |             ^~~~~~~~
cc1: all warnings being treated as errors

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