linux

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Ioana Ciornei 0537e524fe gpio: regmap: add the .fixed_direction_output configuration parameter

[ Upstream commit 00aaae60fa ]

There are GPIO controllers such as the one present in the LX2160ARDB
QIXIS FPGA which have fixed-direction input and output GPIO lines mixed
together in a single register. This cannot be modeled using the
gpio-regmap as-is since there is no way to present the true direction of
a GPIO line.

In order to make this use case possible, add a new configuration
parameter - fixed_direction_output - into the gpio_regmap_config
structure. This will enable user drivers to provide a bitmap that
represents the fixed direction of the GPIO lines.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Michael Walle <mwalle@kernel.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Stable-dep-of: 2ba5772e53 ("gpio: idio-16: Define fixed direction of the GPIO lines")
Signed-off-by: William Breathitt Gray <wbg@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2025-11-02 22:15:22 +09:00

aspeed.h

…

consumer.h

gpio: acpi: remove acpi_get_and_request_gpiod()

2023-10-09 14:47:15 +02:00

driver.h

gpiolib: unexport gpiochip_get_desc()

2024-07-02 11:40:37 +02:00

gpio-nomadik.h

drivers/gpio/nomadik: move dummy nmk_gpio_dbg_show_one() to header

2024-03-12 12:53:35 +01:00