From: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Mon, 10 Nov 2014 20:55:15 +0000 (+0200)
Subject: drm/i915: Change CHV SKU400 GPU freq divider to 10
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ab3fb15730fd7a3d2d00c926bc95a81bb283a90f;p=linux-beck.git

drm/i915: Change CHV SKU400 GPU freq divider to 10

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@linux.intel.com>
Reviewed-by: Deepak S<deepak.s@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 290af15af067..929648f2373f 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -7215,8 +7215,9 @@ 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;
 	}