[Intel-gfx] [PATCH 2/4] drm/i915: check the power domains in ironlake_get_pipe_config()

[Damien Lespiau]

On Fri, Jul 04, 2014 at 01:38:34PM -0300, Paulo Zanoni wrote:
> From: Paulo Zanoni <paulo.r.zanoni at intel.com>
> 
> Just like we already do in haswell_get_pipe_config(). This should
> prevent some WARNs when we run pm_rpm on SNB.
> 
> Testcase: igt/pm_rpm
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80463
> Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com>

Reviewed-by: Damien Lespiau <damien.lespiau at intel.com>

-- 
Damien

> ---
>  drivers/gpu/drm/i915/intel_display.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index 3d69097..0e6217a 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -7261,6 +7261,10 @@ static bool ironlake_get_pipe_config(struct intel_crtc *crtc,
>  	struct drm_i915_private *dev_priv = dev->dev_private;
>  	uint32_t tmp;
>  
> +	if (!intel_display_power_enabled(dev_priv,
> +					 POWER_DOMAIN_PIPE(crtc->pipe)))
> +		return false;
> +
>  	pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
>  	pipe_config->shared_dpll = DPLL_ID_PRIVATE;
>  
> -- 
> 2.0.0
> 
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