diff options
| author | Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> | 2023-09-06 09:50:58 +0300 |
|---|---|---|
| committer | Robert Foss <rfoss@kernel.org> | 2023-09-20 14:48:47 +0300 |
| commit | f1dabbe645065d20ca863c8d446c74c59ca1ca9d (patch) | |
| tree | 114bff618fe65e34af7c66f07d608f9e86625277 /drivers/gpu/drm/bridge | |
| parent | b3aa7b34924a9ed64cf96899cac4d8ea08cd829e (diff) | |
| download | linux-f1dabbe645065d20ca863c8d446c74c59ca1ca9d.tar.xz | |
drm/bridge: tc358768: Fix tc358768_ns_to_cnt()
The tc358768_ns_to_cnt() is, most likely, supposed to do a div-round-up
operation, but it misses subtracting one from the dividend.
Fix this by just using DIV_ROUND_UP().
Fixes: ff1ca6397b1d ("drm/bridge: Add tc358768 driver")
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@gmail.com>
Tested-by: Maxim Schwalm <maxim.schwalm@gmail.com> # Asus TF700T
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230906-tc358768-v4-11-31725f008a50@ideasonboard.com
Diffstat (limited to 'drivers/gpu/drm/bridge')
| -rw-r--r-- | drivers/gpu/drm/bridge/tc358768.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/bridge/tc358768.c b/drivers/gpu/drm/bridge/tc358768.c index 9ce8d120b50c..f41bf56b7d6b 100644 --- a/drivers/gpu/drm/bridge/tc358768.c +++ b/drivers/gpu/drm/bridge/tc358768.c @@ -630,7 +630,7 @@ static int tc358768_setup_pll(struct tc358768_priv *priv, static u32 tc358768_ns_to_cnt(u32 ns, u32 period_ps) { - return (ns * 1000 + period_ps) / period_ps; + return DIV_ROUND_UP(ns * 1000, period_ps); } static u32 tc358768_ps_to_ns(u32 ps) |