[Intel-gfx] [PATCH 1/3] drm/i915/cnp+: update to the new RAWCLK_FREQ recommendations

[Paulo Zanoni]

BSpec was updated and now there's no more "subtract 1" to the
Microsecond Counter Divider field.

It seems this should help fixing some GMBUS issues. I'm not aware of
any specific open bug that could be solved by this patch.

Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
---
 drivers/gpu/drm/i915/intel_cdclk.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_cdclk.c b/drivers/gpu/drm/i915/intel_cdclk.c
index 8d74276029e6..810670976e86 100644
--- a/drivers/gpu/drm/i915/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/intel_cdclk.c
@@ -2660,7 +2660,7 @@ static int cnp_rawclk(struct drm_i915_private *dev_priv)
 		fraction = 200;
 	}
 
-	rawclk = CNP_RAWCLK_DIV((divider / 1000) - 1);
+	rawclk = CNP_RAWCLK_DIV(divider / 1000);
 	if (fraction)
 		rawclk |= CNP_RAWCLK_FRAC(DIV_ROUND_CLOSEST(1000,
 							    fraction) - 1);
@@ -2676,12 +2676,12 @@ static int icp_rawclk(struct drm_i915_private *dev_priv)
 
 	if (I915_READ(SFUSE_STRAP) & SFUSE_STRAP_RAW_FREQUENCY) {
 		frequency = 24000;
-		divider = 23;
+		divider = 24;
 		numerator = 0;
 		denominator = 0;
 	} else {
 		frequency = 19200;
-		divider = 18;
+		divider = 19;
 		numerator = 1;
 		denominator = 4;
 	}
-- 
2.14.4