diff options
| author | Sakari Ailus <sakari.ailus@maxwell.research.nokia.com> | 2012-04-26 11:21:30 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-05-20 12:46:17 -0300 |
| commit | 6f367993988720c86e863bb64db8a62a002d6d9d (patch) | |
| tree | a2c69739d068a7ec2536551cc201d92e4a34e833 /drivers/media/video | |
| parent | 98add8e80764f49219de354a867f4cf8ade94ba8 (diff) | |
[media] smiapp: Round minimum pre_pll up rather than down in ip_clk_freq check
The pre_pll divisor must be such that ext_clk / pre_pll divisor does not
result in a frequency that is greater than pll_ip_clk_freq. Fix this.
Signed-off-by: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video')
| -rw-r--r-- | drivers/media/video/smiapp-pll.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/media/video/smiapp-pll.c b/drivers/media/video/smiapp-pll.c index a416e27a428..a2e41a21dc6 100644 --- a/drivers/media/video/smiapp-pll.c +++ b/drivers/media/video/smiapp-pll.c @@ -124,8 +124,9 @@ int smiapp_pll_calculate(struct device *dev, struct smiapp_pll_limits *limits, limits->min_pll_ip_freq_hz)); limits->min_pre_pll_clk_div = max_t(uint16_t, limits->min_pre_pll_clk_div, - clk_div_even(pll->ext_clk_freq_hz / - limits->max_pll_ip_freq_hz)); + clk_div_even_up( + DIV_ROUND_UP(pll->ext_clk_freq_hz, + limits->max_pll_ip_freq_hz))); dev_dbg(dev, "pre-pll check: min / max pre_pll_clk_div: %d / %d\n", limits->min_pre_pll_clk_div, limits->max_pre_pll_clk_div); |