dm: gpio: Add driver for stm32f7 gpio controller

This patch adds gpio driver supporting driver model for stm32f7 gpio.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Christophe KERELLO <christophe.kerello@st.com>
[trini: Add depends on STM32]
Signed-off-by: Tom Rini <trini@konsulko.com>

1 files changed, 16 insertions, 4 deletions

diff --git a/arch/arm/include/asm/arch-stm32f7/gpio.h b/arch/arm/include/asm/arch-stm32f7/gpio.h
index 2942cd923c..45999b4d2e 100644
--- a/arch/arm/include/asm/arch-stm32f7/gpio.h
+++ b/arch/arm/include/asm/arch-stm32f7/gpio.h
@@ -96,6 +96,22 @@ struct stm32_gpio_ctl {
 	enum stm32_gpio_af	af;
 };
 
+struct stm32_gpio_regs {
+	u32 moder;	/* GPIO port mode */
+	u32 otyper;	/* GPIO port output type */
+	u32 ospeedr;	/* GPIO port output speed */
+	u32 pupdr;	/* GPIO port pull-up/pull-down */
+	u32 idr;	/* GPIO port input data */
+	u32 odr;	/* GPIO port output data */
+	u32 bsrr;	/* GPIO port bit set/reset */
+	u32 lckr;	/* GPIO port configuration lock */
+	u32 afr[2];	/* GPIO alternate function */
+};
+
+struct stm32_gpio_priv {
+	struct stm32_gpio_regs *regs;
+};
+
 static inline unsigned stm32_gpio_to_port(unsigned gpio)
 {
 	return gpio / 16;
@@ -106,8 +122,4 @@ static inline unsigned stm32_gpio_to_pin(unsigned gpio)
 	return gpio % 16;
 }
 
-int stm32_gpio_config(const struct stm32_gpio_dsc *gpio_dsc,
-		const struct stm32_gpio_ctl *gpio_ctl);
-int stm32_gpout_set(const struct stm32_gpio_dsc *gpio_dsc, int state);
-
 #endif /* _STM32_GPIO_H_ */