4cbb1513a2
NXP PCF8574 and compatible ICs are simple I2C GPIO expanders. PCF8574 incorporates quasi-bidirectional IO, and simple communication protocol, when IO read is I2C byte read, and IO write is I2C byte write. User can think of it as open-drain port, when line high state is input and line low state is output. Signed-off-by: Dmitrii Sharikhin <d.sharikhin@yadro.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <f1552d822276e878d84c01eba2cf2c7c9ebdde00.camel@yadro.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
20 lines
1.0 KiB
Meson
20 lines
1.0 KiB
Meson
system_ss.add(when: 'CONFIG_GPIO_KEY', if_true: files('gpio_key.c'))
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system_ss.add(when: 'CONFIG_GPIO_MPC8XXX', if_true: files('mpc8xxx.c'))
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system_ss.add(when: 'CONFIG_GPIO_PWR', if_true: files('gpio_pwr.c'))
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system_ss.add(when: 'CONFIG_MAX7310', if_true: files('max7310.c'))
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system_ss.add(when: 'CONFIG_PL061', if_true: files('pl061.c'))
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system_ss.add(when: 'CONFIG_ZAURUS', if_true: files('zaurus.c'))
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system_ss.add(when: 'CONFIG_IMX', if_true: files('imx_gpio.c'))
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system_ss.add(when: 'CONFIG_NPCM7XX', if_true: files('npcm7xx_gpio.c'))
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system_ss.add(when: 'CONFIG_NRF51_SOC', if_true: files('nrf51_gpio.c'))
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system_ss.add(when: 'CONFIG_OMAP', if_true: files('omap_gpio.c'))
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system_ss.add(when: 'CONFIG_RASPI', if_true: files(
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'bcm2835_gpio.c',
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'bcm2838_gpio.c'
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))
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system_ss.add(when: 'CONFIG_STM32L4X5_SOC', if_true: files('stm32l4x5_gpio.c'))
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system_ss.add(when: 'CONFIG_ASPEED_SOC', if_true: files('aspeed_gpio.c'))
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system_ss.add(when: 'CONFIG_SIFIVE_GPIO', if_true: files('sifive_gpio.c'))
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system_ss.add(when: 'CONFIG_PCF8574', if_true: files('pcf8574.c'))
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