Searched hist:"92 f7a35836c2e13ae5f0dc8c7f889e92f66a9d19" (Results 1 – 2 of 2) sorted by relevance
| /linux/drivers/gpio/ |
| H A D | gpio-104-dio-48e.c | diff 92f7a35836c2e13ae5f0dc8c7f889e92f66a9d19 Thu Jul 20 20:49:43 CEST 2023 William Breathitt Gray <william.gray@linaro.org> gpio: 104-dio-48e: Add Counter/Timer support
The 104-DIO-48E 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 counter/timers use the same addresses as PPI 0 (addresses 0x0
to 0x3), so a raw_spinlock_t is used to synchronize operations between
the two regmap mappings to prevent clobbering.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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| H A D | Kconfig | diff 92f7a35836c2e13ae5f0dc8c7f889e92f66a9d19 Thu Jul 20 20:49:43 CEST 2023 William Breathitt Gray <william.gray@linaro.org> gpio: 104-dio-48e: Add Counter/Timer support
The 104-DIO-48E 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 counter/timers use the same addresses as PPI 0 (addresses 0x0
to 0x3), so a raw_spinlock_t is used to synchronize operations between
the two regmap mappings to prevent clobbering.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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