dm: gpio: Convert stm32f7 driver to livetree

Update the GPIO driver to support a live device tree.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>

diff --git a/drivers/gpio/stm32f7_gpio.c b/drivers/gpio/stm32f7_gpio.c
index a7cfb8c92323862e83c6dca95bc8d3215f798f23..11bc66da9ba08b9fba115485c680be5068c9bcb1 100644 (file)
--- a/drivers/gpio/stm32f7_gpio.c
+++ b/drivers/gpio/stm32f7_gpio.c
@@ -16,14 +16,11 @@
 #include <linux/errno.h>
 #include <linux/io.h>
 
-#define MAX_SIZE_BANK_NAME             5
 #define STM32_GPIOS_PER_BANK           16
 #define MODE_BITS(gpio_pin)            (gpio_pin * 2)
 #define MODE_BITS_MASK                 3
 #define IN_OUT_BIT_INDEX(gpio_pin)     (1UL << (gpio_pin))
 
-DECLARE_GLOBAL_DATA_PTR;
-
 static int stm32_gpio_direction_input(struct udevice *dev, unsigned offset)
 {
        struct stm32_gpio_priv *priv = dev_get_priv(dev);
@@ -82,17 +79,14 @@ static int gpio_stm32_probe(struct udevice *dev)
        struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev);
        struct stm32_gpio_priv *priv = dev_get_priv(dev);
        fdt_addr_t addr;
-       char *name;
+       const char *name;
 
-       addr = devfdt_get_addr(dev);
+       addr = dev_read_addr(dev);
        if (addr == FDT_ADDR_T_NONE)
                return -EINVAL;
 
        priv->regs = (struct stm32_gpio_regs *)addr;
-       name = (char *)fdtdec_locate_byte_array(gd->fdt_blob,
-                                               dev_of_offset(dev),
-                                               "st,bank-name",
-                                               MAX_SIZE_BANK_NAME);
+       name = dev_read_string(dev, "st,bank-name");
        if (!name)
                return -EINVAL;
        uc_priv->bank_name = name;