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NXP 74HC153 is a GPIO expander. Its original source cide sits in ar71xx architecture tree. It has been slightly modified to get GPIO pin configuration from the device tree rather than a MACH file. Changes to the source file: - Remove struct nxp_74hc153_config - in nxp_74hc153_probe(), fetch GPIO configuration from device tree - allow GPIO framework decide the base number by passing -1 to it - remove support for kernel versions below 4.5.0 - add OF device compatibility string Create a package for inclusion in image. References: https://lore.kernel.org/linux-gpio/545111184.50061.1615922388276@ichabod.co-bxl/ Signed-off-by: Mauri Sandberg <sandberg@mailfence.com> [added link to driver usptreaming work in progress] Signed-off-by: Petr Štetiar <ynezz@true.cz>
36 lines
891 B
Makefile
36 lines
891 B
Makefile
#
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# Copyright (C) 2020 Mauri Sandberg <sandberg@mailfence.com>
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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include $(TOPDIR)/rules.mk
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include $(INCLUDE_DIR)/kernel.mk
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PKG_NAME:=gpio-nxp-74hc153
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PKG_RELEASE:=1
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PKG_LICENSE:=GPL-2.0
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include $(INCLUDE_DIR)/package.mk
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define KernelPackage/gpio-nxp-74hc153
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SUBMENU:=Other modules
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TITLE:= NXP 74HC153 GPIO expander
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FILES:=$(PKG_BUILD_DIR)/gpio-nxp-74hc153.ko
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AUTOLOAD:=$(call AutoLoad,30,gpio-nxp-74hc153,1)
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KCONFIG:=
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DEPENDS:= @GPIO_SUPPORT @TARGET_ath79
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endef
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define KernelPackage/gpio-nxp-74hc153/description
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Platform driver for NXP 74HC153 Dual 4-input Multiplexer.
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This provides a GPIO interface supporting input mode only.
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endef
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define Build/Compile
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$(KERNEL_MAKE) M=$(PKG_BUILD_DIR) modules
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endef
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$(eval $(call KernelPackage,gpio-nxp-74hc153))
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