diff options
| author | Sakari Ailus <sakari.ailus@linux.intel.com> | 2020-07-07 16:24:09 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2020-12-07 17:50:18 +0300 |
| commit | 82ab97c8c77629c4945de24c722cd4955cf70ef2 (patch) | |
| tree | 08f3f5a16173f86a6c005fd7b9678746194d01de /drivers/media | |
| parent | c64cf71d10c36513071ca538f59e4c38eb25ae55 (diff) | |
| download | linux-82ab97c8c77629c4945de24c722cd4955cf70ef2.tar.xz | |
media: ccs-pll: Fix check for PLL multiplier upper bound
The additional multiplier (for higher VT timing) of the PLL multiplier was
checked against the upper limit but the result was rounded up, possibly
producing too high additional multiplier. Round down instead to keep
within hardware limits.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/i2c/ccs-pll.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/media/i2c/ccs-pll.c b/drivers/media/i2c/ccs-pll.c index f4c41d61e332..b23e959000a4 100644 --- a/drivers/media/i2c/ccs-pll.c +++ b/drivers/media/i2c/ccs-pll.c @@ -204,8 +204,7 @@ __ccs_pll_calculate(struct device *dev, const struct ccs_pll_limits *lim, dev_dbg(dev, "more_mul_max: max_op_sys_clk_div check: %u\n", more_mul_max); /* Ensure we won't go above max_pll_multiplier. */ - more_mul_max = min(more_mul_max, - DIV_ROUND_UP(op_lim_fr->max_pll_multiplier, mul)); + more_mul_max = min(more_mul_max, op_lim_fr->max_pll_multiplier / mul); dev_dbg(dev, "more_mul_max: min_pll_multiplier check: %u\n", more_mul_max); |