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| author | Michal Simek <michal.simek@xilinx.com> | 2016-09-01 12:51:27 +0200 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2016-09-22 07:33:20 +0200 |
| commit | 5f647c2284e418e366a9d8f7b58145713875dbba (patch) | |
| tree | 76d280022ddbb3deeac9341bea8c7d5306904017 /drivers/spi/zynq_spi.c | |
| parent | 9feff385f889d767b5c3643e515b723a448ab44b (diff) | |
spi: zynq: Use variable to remove u32 to u64 conversions
Current code generates warning when it is compiled for arm64:
Warnings:
In file included from drivers/spi/zynq_spi.c:14:0:
drivers/spi/zynq_spi.c: In function ‘zynq_spi_init_hw’:
drivers/spi/zynq_spi.c:95:9: warning: large integer implicitly truncated
to unsigned type [-Woverflow]
writel(~ZYNQ_SPI_ENR_SPI_EN_MASK, ®s->enr);
^
./arch/arm/include/asm/io.h:146:34: note: in definition of macro
‘writel’
#define writel(v,c) ({ u32 __v = v; __iowmb(); __arch_putl(__v,c); __v;
})
^
drivers/spi/zynq_spi.c: In function ‘zynq_spi_release_bus’:
drivers/spi/zynq_spi.c:177:9: warning: large integer implicitly
truncated to unsigned type [-Woverflow]
writel(~ZYNQ_SPI_ENR_SPI_EN_MASK, ®s->enr);
^
./arch/arm/include/asm/io.h:146:34: note: in definition of macro
‘writel’
#define writel(v,c) ({ u32 __v = v; __iowmb(); __arch_putl(__v,c); __v;
})
^
This patch is using one variable to do conversion via u32 variable.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
Diffstat (limited to 'drivers/spi/zynq_spi.c')
| -rw-r--r-- | drivers/spi/zynq_spi.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/spi/zynq_spi.c b/drivers/spi/zynq_spi.c index 09ae1be7e9..7a176a2cd6 100644 --- a/drivers/spi/zynq_spi.c +++ b/drivers/spi/zynq_spi.c @@ -92,7 +92,8 @@ static void zynq_spi_init_hw(struct zynq_spi_priv *priv) u32 confr; /* Disable SPI */ - writel(~ZYNQ_SPI_ENR_SPI_EN_MASK, ®s->enr); + confr = ZYNQ_SPI_ENR_SPI_EN_MASK; + writel(~confr, ®s->enr); /* Disable Interrupts */ writel(ZYNQ_SPI_IXR_ALL_MASK, ®s->idr); @@ -173,8 +174,10 @@ static int zynq_spi_release_bus(struct udevice *dev) struct udevice *bus = dev->parent; struct zynq_spi_priv *priv = dev_get_priv(bus); struct zynq_spi_regs *regs = priv->regs; + u32 confr; - writel(~ZYNQ_SPI_ENR_SPI_EN_MASK, ®s->enr); + confr = ZYNQ_SPI_ENR_SPI_EN_MASK; + writel(~confr, ®s->enr); return 0; } |