[U-Boot] [PATCH 20/20] spi: stm32: Fix warnings when compiling with W=1

[Patrick DELAUNAY]

Hi,

> From: Patrick DELAUNAY <patrick.delaunay at st.com>
> Sent: vendredi 21 juin 2019 15:27
> 
> This patch solves the following warnings:
> 
> drivers/spi/stm32_spi.c: In function 'stm32_spi_write_txfifo':
> drivers/spi/stm32_spi.c:116:20: warning: comparison between signed and
> unsigned integer expressions [-Wsign-compare]
>    if (priv->tx_len >= sizeof(u32) &&
>                     ^~
> drivers/spi/stm32_spi.c:122:27: warning: comparison between signed and
> unsigned integer expressions [-Wsign-compare]
>    } else if (priv->tx_len >= sizeof(u16) &&
>                            ^~
> drivers/spi/stm32_spi.c: In function 'stm32_spi_read_rxfifo':
> drivers/spi/stm32_spi.c:150:21: warning: comparison between signed and
> unsigned integer expressions [-Wsign-compare]
>        (priv->rx_len >= sizeof(u32) || (sr & SPI_SR_RXWNE))) {
>                      ^~
> drivers/spi/stm32_spi.c:156:21: warning: comparison between signed and
> unsigned integer expressions [-Wsign-compare]
>        (priv->rx_len >= sizeof(u16) ||
>                      ^~
> drivers/core/simple-bus.c:15:12: warning: no previous prototype for
> 'simple_bus_translate' [-Wmissing-prototypes]  fdt_addr_t
> simple_bus_translate(struct udevice *dev, fdt_addr_t addr)
>             ^~~~~~~~~~~~~~~~~~~~
> drivers/spi/stm32_spi.c: In function 'stm32_spi_set_speed':
> drivers/spi/stm32_spi.c:335:10: warning: comparison between signed and
> unsigned integer expressions [-Wsign-compare]
>       div > STM32_MBR_DIV_MAX)
>           ^
> drivers/spi/stm32_spi.c:344:19: warning: comparison of unsigned expression < 0
> is always false [-Wtype-limits]
>   if ((mbrdiv - 1) < 0)
>                    ^
> drivers/spi/stm32_spi.c: In function 'stm32_spi_probe':
> drivers/spi/stm32_spi.c:531:16: warning: comparison between signed and
> unsigned integer expressions [-Wsign-compare]
>   for (i = 0; i < ARRAY_SIZE(priv->cs_gpios); i++) {
>                 ^
> Signed-off-by: Patrice Chotard <patrice.chotard at st.com>
> 
> Signed-off-by: Patrick Delaunay <patrick.delaunay at st.com>
> ---
> 
>  drivers/spi/stm32_spi.c | 11 ++++++-----
>  1 file changed, 6 insertions(+), 5 deletions(-)
> 

Applied to u-boot-stm32/master, thanks!

Patrick