In order to keep SPL code size below the 32Kb limit,
put under CONFIG_SPL_BUILD flag all unused code in SPL.
This is needed for stm32f7xx board which are using SPL.

Signed-off-by: Patrice Chotard <patrice.chot...@st.com>
---

 drivers/gpio/stm32f7_gpio.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/gpio/stm32f7_gpio.c b/drivers/gpio/stm32f7_gpio.c
index dbaa80cf8cce..5c9f2fe64d47 100644
--- a/drivers/gpio/stm32f7_gpio.c
+++ b/drivers/gpio/stm32f7_gpio.c
@@ -19,6 +19,7 @@
 #define MODE_BITS_MASK                 3
 #define BSRR_BIT(gpio_pin, value)      BIT(gpio_pin + (value ? 0 : 16))
 
+#ifndef CONFIG_SPL_BUILD
 /*
  * convert gpio offset to gpio index taking into account gpio holes
  * into gpio bank
@@ -145,23 +146,27 @@ static const struct dm_gpio_ops gpio_stm32_ops = {
        .set_value              = stm32_gpio_set_value,
        .get_function           = stm32_gpio_get_function,
 };
+#endif
 
 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);
-       struct ofnode_phandle_args args;
        struct clk clk;
        fdt_addr_t addr;
-       const char *name;
        int ret;
-       int i;
 
        addr = dev_read_addr(dev);
        if (addr == FDT_ADDR_T_NONE)
                return -EINVAL;
 
        priv->regs = (struct stm32_gpio_regs *)addr;
+
+#ifndef CONFIG_SPL_BUILD
+       struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev);
+       struct ofnode_phandle_args args;
+       const char *name;
+       int i;
+
        name = dev_read_string(dev, "st,bank-name");
        if (!name)
                return -EINVAL;
@@ -189,7 +194,7 @@ static int gpio_stm32_probe(struct udevice *dev)
        dev_dbg(dev, "addr = 0x%p bank_name = %s gpio_count = %d gpio_range = 
0x%x\n",
                (u32 *)priv->regs, uc_priv->bank_name, uc_priv->gpio_count,
                priv->gpio_range);
-
+#endif
        ret = clk_get_by_index(dev, 0, &clk);
        if (ret < 0)
                return ret;
@@ -215,7 +220,9 @@ U_BOOT_DRIVER(gpio_stm32) = {
        .id     = UCLASS_GPIO,
        .of_match = stm32_gpio_ids,
        .probe  = gpio_stm32_probe,
+#ifndef CONFIG_SPL_BUILD
        .ops    = &gpio_stm32_ops,
+#endif
        .flags  = DM_UC_FLAG_SEQ_ALIAS,
        .priv_auto_alloc_size   = sizeof(struct stm32_gpio_priv),
 };
-- 
1.9.1

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