Fix the divider calculation logic to choose a value so that the resulting baudrate is either equal to or closest possible baudrate less than the requested value.
Signed-off-by: Vignesh R vigneshr@ti.com --- drivers/spi/ti_qspi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/ti_qspi.c b/drivers/spi/ti_qspi.c index 52520dff6325..d97e2479d1b3 100644 --- a/drivers/spi/ti_qspi.c +++ b/drivers/spi/ti_qspi.c @@ -16,6 +16,7 @@ #include <asm/omap_gpio.h> #include <asm/omap_common.h> #include <asm/ti-common/ti-edma3.h> +#include <linux/kernel.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -118,7 +119,7 @@ static void ti_spi_set_speed(struct ti_qspi_priv *priv, uint hz) if (!hz) clk_div = 0; else - clk_div = (priv->fclk / hz) - 1; + clk_div = DIV_ROUND_UP(priv->fclk, hz) - 1;
debug("ti_spi_set_speed: hz: %d, clock divider %d\n", hz, clk_div);