On Wed, Oct 12, 2016 at 9:46 AM, Vignesh R <vigne...@ti.com> wrote: > 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 <vigne...@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;
Better to have a checks for min and max divider values or mask. > > debug("ti_spi_set_speed: hz: %d, clock divider %d\n", hz, clk_div); thanks! -- Jagan Teki Free Software Engineer | www.openedev.com U-Boot, Linux | Upstream Maintainer Hyderabad, India. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot