diff options
Diffstat (limited to 'drivers/gpu/drm/stm')
| -rw-r--r-- | drivers/gpu/drm/stm/dw_mipi_dsi-stm.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c index 568c5d0461ea..e5b6310240fe 100644 --- a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c +++ b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c @@ -113,11 +113,13 @@ static enum dsi_color dsi_color_from_mipi(enum mipi_dsi_pixel_format fmt) static int dsi_pll_get_clkout_khz(int clkin_khz, int idf, int ndiv, int odf) { + int divisor = idf * odf; + /* prevent from division by 0 */ - if (idf * odf) - return DIV_ROUND_CLOSEST(clkin_khz * ndiv, idf * odf); + if (!divisor) + return 0; - return 0; + return DIV_ROUND_CLOSEST(clkin_khz * ndiv, divisor); } static int dsi_pll_get_params(int clkin_khz, int clkout_khz, |
