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dca2f73cf1
This enables the pin control support of the onboard FPGA on AAEON UP
boards.
This FPGA acts as a level shifter between the Intel SoC pins and the pin
header, and also as a mux or switch.
+---------+ +--------------+ +---+
| | | | |
| PWM0 | \ | | H |
|----------|------ \-----|-------------| E |
| I2C0_SDA | | | A |
Intel SoC |----------|------\ | | D |
| GPIO0 | \------|-------------| E |
|----------|------ | | R |
| | FPGA | | |
----------+ +--------------+ +---+
For most of the pins, the FPGA opens/closes a switch to enable/disable
the access to the SoC pin from a pin header.
Each switch, has a direction flag that is set depending the status of the
SoC pin.
For some other pins, the FPGA acts as a mux, and routes one pin (or the
other one) to the header.
The driver also provides a GPIO chip. It requests SoC pins in GPIO mode,
and drives them in tandem with FPGA pins (switch/mux direction).
This commit adds support only for UP Squared board.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Thomas Richard <thomas.richard@bootlin.com>
Link: https://lore.kernel.org/20250811-aaeon-up-board-pinctrl-support-v9-10-29f0cbbdfb30@bootlin.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
97 lines
3.8 KiB
Makefile
97 lines
3.8 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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# generic pinmux support
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subdir-ccflags-$(CONFIG_DEBUG_PINCTRL) += -DDEBUG
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obj-y += core.o pinctrl-utils.o
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obj-$(CONFIG_PINMUX) += pinmux.o
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obj-$(CONFIG_PINCONF) += pinconf.o
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obj-$(CONFIG_GENERIC_PINCONF) += pinconf-generic.o
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obj-$(CONFIG_OF) += devicetree.o
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obj-$(CONFIG_PINCTRL_AMD) += pinctrl-amd.o
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obj-$(CONFIG_PINCTRL_AMDISP) += pinctrl-amdisp.o
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obj-$(CONFIG_PINCTRL_APPLE_GPIO) += pinctrl-apple-gpio.o
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obj-$(CONFIG_PINCTRL_ARTPEC6) += pinctrl-artpec6.o
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obj-$(CONFIG_PINCTRL_AS3722) += pinctrl-as3722.o
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obj-$(CONFIG_PINCTRL_AT91) += pinctrl-at91.o
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obj-$(CONFIG_PINCTRL_AT91PIO4) += pinctrl-at91-pio4.o
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obj-$(CONFIG_PINCTRL_AW9523) += pinctrl-aw9523.o
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obj-$(CONFIG_PINCTRL_AXP209) += pinctrl-axp209.o
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obj-$(CONFIG_PINCTRL_BM1880) += pinctrl-bm1880.o
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obj-$(CONFIG_PINCTRL_CY8C95X0) += pinctrl-cy8c95x0.o
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obj-$(CONFIG_PINCTRL_DA850_PUPD) += pinctrl-da850-pupd.o
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obj-$(CONFIG_PINCTRL_DA9062) += pinctrl-da9062.o
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obj-$(CONFIG_PINCTRL_DIGICOLOR) += pinctrl-digicolor.o
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obj-$(CONFIG_PINCTRL_EIC7700) += pinctrl-eic7700.o
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obj-$(CONFIG_PINCTRL_EQUILIBRIUM) += pinctrl-equilibrium.o
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obj-$(CONFIG_PINCTRL_EP93XX) += pinctrl-ep93xx.o
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obj-$(CONFIG_PINCTRL_EYEQ5) += pinctrl-eyeq5.o
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obj-$(CONFIG_PINCTRL_GEMINI) += pinctrl-gemini.o
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obj-$(CONFIG_PINCTRL_INGENIC) += pinctrl-ingenic.o
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obj-$(CONFIG_PINCTRL_K210) += pinctrl-k210.o
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obj-$(CONFIG_PINCTRL_K230) += pinctrl-k230.o
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obj-$(CONFIG_PINCTRL_KEEMBAY) += pinctrl-keembay.o
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obj-$(CONFIG_PINCTRL_LANTIQ) += pinctrl-lantiq.o
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obj-$(CONFIG_PINCTRL_FALCON) += pinctrl-falcon.o
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obj-$(CONFIG_PINCTRL_LOONGSON2) += pinctrl-loongson2.o
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obj-$(CONFIG_PINCTRL_XWAY) += pinctrl-xway.o
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obj-$(CONFIG_PINCTRL_LPC18XX) += pinctrl-lpc18xx.o
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obj-$(CONFIG_PINCTRL_MAX77620) += pinctrl-max77620.o
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obj-$(CONFIG_PINCTRL_MCP23S08_I2C) += pinctrl-mcp23s08_i2c.o
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obj-$(CONFIG_PINCTRL_MCP23S08_SPI) += pinctrl-mcp23s08_spi.o
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obj-$(CONFIG_PINCTRL_MCP23S08) += pinctrl-mcp23s08.o
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obj-$(CONFIG_PINCTRL_MICROCHIP_SGPIO) += pinctrl-microchip-sgpio.o
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obj-$(CONFIG_PINCTRL_MLXBF3) += pinctrl-mlxbf3.o
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obj-$(CONFIG_PINCTRL_OCELOT) += pinctrl-ocelot.o
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obj-$(CONFIG_PINCTRL_PALMAS) += pinctrl-palmas.o
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obj-$(CONFIG_PINCTRL_PEF2256) += pinctrl-pef2256.o
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obj-$(CONFIG_PINCTRL_PIC32) += pinctrl-pic32.o
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obj-$(CONFIG_PINCTRL_PISTACHIO) += pinctrl-pistachio.o
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obj-$(CONFIG_PINCTRL_RK805) += pinctrl-rk805.o
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obj-$(CONFIG_PINCTRL_ROCKCHIP) += pinctrl-rockchip.o
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obj-$(CONFIG_PINCTRL_RP1) += pinctrl-rp1.o
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obj-$(CONFIG_PINCTRL_SCMI) += pinctrl-scmi.o
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obj-$(CONFIG_PINCTRL_SINGLE) += pinctrl-single.o
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obj-$(CONFIG_PINCTRL_ST) += pinctrl-st.o
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obj-$(CONFIG_PINCTRL_STMFX) += pinctrl-stmfx.o
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obj-$(CONFIG_PINCTRL_SX150X) += pinctrl-sx150x.o
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obj-$(CONFIG_PINCTRL_TB10X) += pinctrl-tb10x.o
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obj-$(CONFIG_PINCTRL_TPS6594) += pinctrl-tps6594.o
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obj-$(CONFIG_PINCTRL_TH1520) += pinctrl-th1520.o
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obj-$(CONFIG_PINCTRL_UPBOARD) += pinctrl-upboard.o
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obj-$(CONFIG_PINCTRL_ZYNQMP) += pinctrl-zynqmp.o
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obj-$(CONFIG_PINCTRL_ZYNQ) += pinctrl-zynq.o
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obj-y += actions/
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obj-$(CONFIG_ARCH_ASPEED) += aspeed/
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obj-y += bcm/
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obj-$(CONFIG_PINCTRL_BERLIN) += berlin/
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obj-y += cirrus/
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obj-y += freescale/
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obj-$(CONFIG_X86) += intel/
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obj-y += mediatek/
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obj-$(CONFIG_PINCTRL_MESON) += meson/
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obj-y += mvebu/
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obj-y += nomadik/
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obj-y += nuvoton/
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obj-y += nxp/
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obj-$(CONFIG_PINCTRL_PXA) += pxa/
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obj-y += qcom/
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obj-$(CONFIG_ARCH_REALTEK) += realtek/
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obj-$(CONFIG_PINCTRL_RENESAS) += renesas/
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obj-$(CONFIG_PINCTRL_SAMSUNG) += samsung/
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obj-y += sophgo/
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obj-y += spacemit/
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obj-$(CONFIG_PINCTRL_SPEAR) += spear/
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obj-y += sprd/
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obj-y += starfive/
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obj-$(CONFIG_PINCTRL_STM32) += stm32/
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obj-y += sunplus/
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obj-$(CONFIG_PINCTRL_SUNXI) += sunxi/
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obj-$(CONFIG_ARCH_TEGRA) += tegra/
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obj-y += ti/
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obj-$(CONFIG_PINCTRL_UNIPHIER) += uniphier/
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obj-$(CONFIG_PINCTRL_VISCONTI) += visconti/
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obj-$(CONFIG_ARCH_VT8500) += vt8500/
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