Following formula of Pll_clk in 5.2 section, 50th page of
TC358746AXBG/748XBG/748IXBG Functional Specification Rev 1.1 document.
The formula of fout is as below:
fout = refclk * mul / (prediv * postdiv)
Remove "p" to avoid using 2 times of prediv in pll calculating function.
Signed-off-by: Duc-Long, Le <duclong.linux@xxxxxxxxx>
---
drivers/media/i2c/tc358746.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/media/i2c/tc358746.c b/drivers/media/i2c/tc358746.c
index 566f5eaddd57..4f54773886cc 100644
--- a/drivers/media/i2c/tc358746.c
+++ b/drivers/media/i2c/tc358746.c
@@ -839,14 +839,14 @@ static unsigned long tc358746_find_pll_settings(struct tc358746 *tc358746,
if (fin < 4 * HZ_PER_MHZ || fin > 40 * HZ_PER_MHZ)
continue;
- tmp = fout * p * postdiv;
+ tmp = fout * postdiv;
do_div(tmp, fin);
mul = tmp;
if (mul > 511)
continue;
tmp = mul * fin;
- do_div(tmp, p * postdiv);
+ do_div(tmp, postdiv);
delta = abs(fout - tmp);
if (delta < min_delta) {
--
2.17.1
