[U-Boot] [PATCH v3] spi: cadence_qspi: Fix compilation warning

[Ley Foon Tan]

Use "%zu" for size_t data type.

Compilation warning as below:

In file included from include/linux/bug.h:7:0,
                 from include/common.h:26,
                 from drivers/spi/cadence_qspi.c:8:
drivers/spi/cadence_qspi.c: In function ‘cadence_spi_xfer’:
drivers/spi/cadence_qspi.c:211:8: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘size_t {aka long unsigned int}’ [-Wformat=]
  debug("%s: len=%d [bytes]\n", __func__, data_bytes);
        ^
include/linux/printk.h:37:21: note: in definition of macro ‘pr_fmt’
 #define pr_fmt(fmt) fmt
                     ^~~
include/log.h:142:2: note: in expansion of macro ‘debug_cond’
  debug_cond(_DEBUG, fmt, ##args)
  ^~~~~~~~~~
drivers/spi/cadence_qspi.c:211:2: note: in expansion of macro ‘debug’
  debug("%s: len=%d [bytes]\n", __func__, data_bytes);

Signed-off-by: Ley Foon Tan <ley.foon.tan at intel.com>
Acked-by: Marek Vasut <marex at denx.de>

---

v1: Cast data_byte to integet
v2: Use "%lu"
v3: Still have compilation warning with "%lu" in Cyclone V build.
    So, change to use "%zu" for size_t type.
---
 drivers/spi/cadence_qspi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/cadence_qspi.c b/drivers/spi/cadence_qspi.c
index 91742ba..29db6fa 100644
--- a/drivers/spi/cadence_qspi.c
+++ b/drivers/spi/cadence_qspi.c
@@ -207,7 +207,7 @@ static int cadence_spi_xfer(struct udevice *dev, unsigned int bitlen,
 	} else {
 		data_bytes = bitlen / 8;
 	}
-	debug("%s: len=%d [bytes]\n", __func__, data_bytes);
+	debug("%s: len=%zu [bytes]\n", __func__, data_bytes);
 
 	/* Set Chip select */
 	cadence_qspi_apb_chipselect(base, spi_chip_select(dev),
-- 
2.2.2