From: Deepak S Date: Fri, 23 May 2014 15:30:21 +0000 (+0530) Subject: drm/i915/chv: Freq(opcode) request for CHV. X-Git-Tag: next-20140530~66^2~25 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=fdbbf2826292987ff3d180506340437f95694c4a;p=karo-tx-linux.git drm/i915/chv: Freq(opcode) request for CHV. On CHV, All the freq request should be even. So, we need to make sure we request the opcode accordingly. v2: Avoid vairable for freq request (ville) Signed-off-by: Deepak S Reviewed-by: Ben Widawsky Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index a628a110346d..4ef642348450 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1252,8 +1252,10 @@ static void gen6_pm_rps_work(struct work_struct *work) if (pm_iir & GEN6_PM_RP_UP_THRESHOLD) { if (adj > 0) adj *= 2; - else - adj = 1; + else { + /* CHV needs even encode values */ + adj = IS_CHERRYVIEW(dev_priv->dev) ? 2 : 1; + } new_delay = dev_priv->rps.cur_freq + adj; /* @@ -1271,8 +1273,10 @@ static void gen6_pm_rps_work(struct work_struct *work) } else if (pm_iir & GEN6_PM_RP_DOWN_THRESHOLD) { if (adj < 0) adj *= 2; - else - adj = -1; + else { + /* CHV needs even encode values */ + adj = IS_CHERRYVIEW(dev_priv->dev) ? -2 : -1; + } new_delay = dev_priv->rps.cur_freq + adj; } else { /* unknown event */ new_delay = dev_priv->rps.cur_freq;