[Intel-gfx] [PATCH 4/4] drm/i915: Change CHV SKU400 GPU freq divider to 10

[ville.syrjala at linux.intel.com]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

According to "Cherryview_GFXclocks_y14w36d1.xlsx" the GPU frequency
divider should be 10 in when the CZ clock is 400 MHz. Change the code
to agree so that we report the correct frequencies.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 0f5c391..b73506f 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -7292,8 +7292,9 @@ static int vlv_gpu_freq_div(unsigned int czclk_freq)
 		return 12;
 	case 320:
 	case 333:
-	case 400:
 		return 16;
+	case 400:
+		return 20;
 	default:
 		return -1;
 	}
-- 
2.0.4