[Intel-gfx] [PATCH] drm/i915: 4K audio N value incorrect at 29.97 and 23.98 refresh rate

[clinton.a.taylor at intel.com]

From: Clint Taylor <clinton.a.taylor at intel.com>

The TMDS_296M define was computing as 296704 but the mode->clock is
296700 as defined by EDID. Adjusted define to allow correct detection
of the need to program the correct N value for 29.97 and 23.98 refresh
rate.

Signed-off-by: Clint Taylor <clinton.a.taylor at intel.com>
---
 drivers/gpu/drm/i915/intel_audio.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c
index 56c2f54..419c979 100644
--- a/drivers/gpu/drm/i915/intel_audio.c
+++ b/drivers/gpu/drm/i915/intel_audio.c
@@ -75,7 +75,7 @@ static const struct {
 
 /* HDMI N/CTS table */
 #define TMDS_297M 297000
-#define TMDS_296M DIV_ROUND_UP(297000 * 1000, 1001)
+#define TMDS_296M 296700
 static const struct {
 	int sample_rate;
 	int clock;
-- 
1.7.9.5