spi/rockchip: Round up clock rate divisor to err on the safe side

[firefly-linux-kernel-4.4.55.git] / drivers / spi / spi-rockchip.c

diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index 1a777dc261d6f5bfa2e56dc437fb7d957d2b0891..5e4e52cbe0537b077e5283a88601985da6bd80a2 100644 (file)
--- a/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@ -519,7 +519,7 @@ static void rockchip_spi_config(struct rockchip_spi *rs)
        }
 
        /* div doesn't support odd number */
-       div = max_t(u32, rs->max_freq / rs->speed, 1);
+       div = DIV_ROUND_UP(rs->max_freq, rs->speed);
        div = (div + 1) & 0xfffe;
 
        writel_relaxed(cr0, rs->regs + ROCKCHIP_SPI_CTRLR0);