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Merge remote-tracking branch 'drm/drm-next' into drm-misc-next

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drm-next is forwarded to v4.20-rc1, and we need this to make
a patch series apply.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
This commit is contained in:
Maarten Lankhorst
2018-11-13 10:58:49 +01:00
parent 913240696e 651022382c
commit 0ea0397a3a
10025 changed files with 504995 additions and 228244 deletions
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12
drivers/gpu/drm/sun4i/sun4i_dotclock.c
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@@ -81,9 +81,19 @@ static long sun4i_dclk_round_rate(struct clk_hw *hw, unsigned long rate,
int i;
for (i = tcon->dclk_min_div; i <= tcon->dclk_max_div; i++) {
unsigned long ideal = rate * i;
u64 ideal = (u64)rate * i;
unsigned long rounded;
/*
* ideal has overflowed the max value that can be stored in an
* unsigned long, and every clk operation we might do on a
* truncated u64 value will give us incorrect results.
* Let's just stop there since bigger dividers will result in
* the same overflow issue.
*/
if (ideal > ULONG_MAX)
goto out;
rounded = clk_hw_round_rate(clk_hw_get_parent(hw),
ideal);