This Patch replaces the arithmatic operators with bitwise operators for optimizations hoping it would save some cycles
Signed-off-by: Chakra Divi <[email protected]> --- Note: Jagan or anyone please test this patch, I don't have hardware with me. --- drivers/spi/zynq_spi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/spi/zynq_spi.c b/drivers/spi/zynq_spi.c index e9129da..a8a160b 100644 --- a/drivers/spi/zynq_spi.c +++ b/drivers/spi/zynq_spi.c @@ -218,7 +218,7 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout, void *din, unsigned long flags) { struct zynq_spi_slave *zslave = to_zynq_spi_slave(slave); - u32 len = bitlen / 8; + u32 len = bitlen >> 3; u32 tx_len = len, rx_len = len, tx_tvl; const u8 *tx_buf = dout; u8 *rx_buf = din, buf; @@ -227,7 +227,7 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout, debug("spi_xfer: bus:%i cs:%i bitlen:%i len:%i flags:%lx\n", slave->bus, slave->cs, bitlen, len, flags); - if (bitlen % 8) { + if (bitlen & 0x7) { debug("spi_xfer: Non byte aligned SPI transfer\n"); return -1; } -- 1.7.9.5 _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
