We need to round up the values since the comparison in drm_mode_equal might
fail if division
results in fractional part
Signed-off-by: Furquan Shaikh <furq...@google.com>
---
drivers/gpu/drm/i915/intel_display.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index 0f40f8e..e0069f4 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -7190,7 +7190,11 @@ static void ironlake_crtc_clock_get(struct intel_crtc
*crtc,
return;
clock = ((u64)link_m * (u64)link_freq * (u64)repeat);
- do_div(clock, link_n);
+ /* This is required because the value comes out to be in fraction
+ (eg. 70699.54). Need to round it up since values are compared in
+ drm_mode_equal
+ */
+ clock = DIV_ROUND_UP_ULL(clock, link_n);
pipe_config->adjusted_mode.clock = clock;
}
--
1.8.3
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