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gpio: ws16c48: Utilize the ISA bus driver

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The WinSystems WS16C48 communicates via the ISA bus. As such, it is more
appropriate to use the ISA bus driver over the platform driver to
control the WinSystems WS16C48 GPIO driver.

This patch also adds support for multiple devices via the base and irq
module array parameters. Each element of the base array corresponds to a
discrete device; each element of the irq array corresponds to the
respective device addressed in the respective base array element.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
William Breathitt Gray
2016-05-01 18:45:24 -04:00
committed by Greg Kroah-Hartman
parent 86ea8a95a4
commit cc736607c8
2 changed files with 33 additions and 64 deletions
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9
drivers/gpio/Kconfig
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@@ -614,12 +614,13 @@ config GPIO_TS5500
config GPIO_WS16C48
tristate "WinSystems WS16C48 GPIO support"
depends on ISA
select GPIOLIB_IRQCHIP
help
Enables GPIO support for the WinSystems WS16C48. The base port address
for the device may be configured via the ws16c48_base module
parameter. The interrupt line number for the device may be configured
via the ws16c48_irq module parameter.
Enables GPIO support for the WinSystems WS16C48. The base port
addresses for the devices may be configured via the base module
parameter. The interrupt line numbers for the devices may be
configured via the irq module parameter.
endmenu