Commit aceb16dc authored by Maxime Coquelin's avatar Maxime Coquelin Committed by Linus Walleij

pinctrl: Add STM32 MCUs support

This patch adds pinctrl and GPIO support to STMicroelectronic's STM32
family of MCUs.

While it only supports STM32F429 for now, it has been designed to enable
support of other MCUs of the family (e.g. STM32F746).
Acked-by: default avatarPatrice Chotard <patrice.chotard@st.com>
Signed-off-by: default avatarMaxime Coquelin <mcoquelin.stm32@gmail.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 936516bf
......@@ -257,6 +257,7 @@ source "drivers/pinctrl/qcom/Kconfig"
source "drivers/pinctrl/samsung/Kconfig"
source "drivers/pinctrl/sh-pfc/Kconfig"
source "drivers/pinctrl/spear/Kconfig"
source "drivers/pinctrl/stm32/Kconfig"
source "drivers/pinctrl/sunxi/Kconfig"
source "drivers/pinctrl/uniphier/Kconfig"
source "drivers/pinctrl/vt8500/Kconfig"
......
......@@ -51,6 +51,7 @@ obj-$(CONFIG_ARCH_QCOM) += qcom/
obj-$(CONFIG_PINCTRL_SAMSUNG) += samsung/
obj-$(CONFIG_PINCTRL_SH_PFC) += sh-pfc/
obj-$(CONFIG_PINCTRL_SPEAR) += spear/
obj-$(CONFIG_ARCH_STM32) += stm32/
obj-$(CONFIG_ARCH_SUNXI) += sunxi/
obj-$(CONFIG_PINCTRL_UNIPHIER) += uniphier/
obj-$(CONFIG_ARCH_VT8500) += vt8500/
......
if ARCH_STM32 || COMPILE_TEST
config PINCTRL_STM32
bool
depends on OF
select PINMUX
select GENERIC_PINCONF
select GPIOLIB
config PINCTRL_STM32F429
bool "STMicroelectronics STM32F429 pin control" if COMPILE_TEST && !MACH_STM32F429
depends on OF
default MACH_STM32F429
select PINCTRL_STM32
endif
# Core
obj-$(CONFIG_PINCTRL_STM32) += pinctrl-stm32.o
# SoC Drivers
obj-$(CONFIG_PINCTRL_STM32F429) += pinctrl-stm32f429.o
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/*
* Copyright (C) Maxime Coquelin 2015
* Author: Maxime Coquelin <mcoquelin.stm32@gmail.com>
* License terms: GNU General Public License (GPL), version 2
*/
#ifndef __PINCTRL_STM32_H
#define __PINCTRL_STM32_H
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinconf-generic.h>
struct stm32_desc_function {
const char *name;
const unsigned char num;
};
struct stm32_desc_pin {
struct pinctrl_pin_desc pin;
const struct stm32_desc_function *functions;
};
#define STM32_PIN(_pin, ...) \
{ \
.pin = _pin, \
.functions = (struct stm32_desc_function[]){ \
__VA_ARGS__, { } }, \
}
#define STM32_FUNCTION(_num, _name) \
{ \
.num = _num, \
.name = _name, \
}
struct stm32_pinctrl_match_data {
const struct stm32_desc_pin *pins;
const unsigned int npins;
};
int stm32_pctl_probe(struct platform_device *pdev);
#endif /* __PINCTRL_STM32_H */
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