Re: [PATCH 06/12] drm/i915: Remove intel_crtc->atomic.disable_ips.

[Ander Conselvan De Oliveira <conselvan2@gmail.com>]

On Thu, 2015-11-19 at 16:07 +0100, Maarten Lankhorst wrote:
> This is a revert of commit 066cf55b9ce3 "drm/i915: Fix IPS related flicker".
> intel_pre_disable_primary already handles this, and now everything
> goes through the atomic path there's no need to try to disable ips twice.
> 
> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>

> ---
>  drivers/gpu/drm/i915/intel_display.c | 16 +---------------
>  drivers/gpu/drm/i915/intel_drv.h     |  1 -
>  2 files changed, 1 insertion(+), 16 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_display.c
> b/drivers/gpu/drm/i915/intel_display.c
> index 299edbf6f99e..1fec49c4490e 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -4768,9 +4768,6 @@ static void intel_pre_plane_update(struct intel_crtc
> *crtc)
>  	if (atomic->disable_fbc)
>  		intel_fbc_disable_crtc(crtc);
>  
> -	if (crtc->atomic.disable_ips)
> -		hsw_disable_ips(crtc);
> -
>  	if (atomic->pre_disable_primary)
>  		intel_pre_disable_primary(&crtc->base);
>  
> @@ -11727,19 +11724,8 @@ int intel_plane_atomic_calc_changes(struct
> drm_crtc_state *crtc_state,
>  		intel_crtc->atomic.pre_disable_primary = turn_off;
>  		intel_crtc->atomic.post_enable_primary = turn_on;
>  
> -		if (turn_off) {
> -			/*
> -			 * FIXME: Actually if we will still have any other
> -			 * plane enabled on the pipe we could let IPS enabled
> -			 * still, but for now lets consider that when we make
> -			 * primary invisible by setting DSPCNTR to 0 on
> -			 * update_primary_plane function IPS needs to be
> -			 * disable.
> -			 */
> -			intel_crtc->atomic.disable_ips = true;
> -
> +		if (turn_off)
>  			intel_crtc->atomic.disable_fbc = true;
> -		}
>  
>  		/*
>  		 * FBC does not work on some platforms for rotated
> diff --git a/drivers/gpu/drm/i915/intel_drv.h
> b/drivers/gpu/drm/i915/intel_drv.h
> index 66f66740ccaa..13ffefa3a6c1 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -535,7 +535,6 @@ struct intel_mmio_flip {
>  struct intel_crtc_atomic_commit {
>  	/* Sleepable operations to perform before commit */
>  	bool disable_fbc;
> -	bool disable_ips;
>  	bool pre_disable_primary;
>  
>  	/* Sleepable operations to perform after commit */
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