iio: addac: stx104: Add 8254 Counter/Timer support

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The STX104 features an 8254 Counter/Timer chip providing three
counter/timers which can be used for frequency measurement, frequency
output, pulse width modulation, pulse width measurement, event count,
etc. The STX104 provides a register bank selection to bank select
between the 8254 Bank and the Indexed Register Array Bank; the Indexed
Register Array is not utilized by this driver, so the 8254 Bank is
selected unconditionally.

Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Link: https://lore.kernel.org/r/20230916112031.3634-1-william.gray@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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William Breathitt Gray 2023-09-16 07:20:31 -04:00 • committed by Jonathan Cameron

parent 9dc03309fe

commit 66fe531268

2 changed files with 60 additions and 2 deletions

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drivers/iio/addac/Kconfig

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61

drivers/iio/addac/stx104.c

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