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dm: gpio: Convert stm32f7 driver to livetree

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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>
This commit is contained in:
Patrick Delaunay 2018-03-12 10:46:07 +01:00 committed by Tom Rini
parent 77aace579a
commit d876eaf2be
1 changed files with 3 additions and 9 deletions
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12
drivers/gpio/stm32f7_gpio.c
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@ -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;