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authorSakari Ailus <sakari.ailus@linux.intel.com>2020-07-07 15:24:09 +0200
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>2020-12-07 15:50:18 +0100
commit82ab97c8c77629c4945de24c722cd4955cf70ef2 (patch)
tree08f3f5a16173f86a6c005fd7b9678746194d01de /drivers/media
parentc64cf71d10c36513071ca538f59e4c38eb25ae55 (diff)
downloadlinux-82ab97c8c77629c4945de24c722cd4955cf70ef2.tar.bz2
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.c3
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);