Re: [PATCH v2 17/22] drm/i915/rkl: Don't try to read out DSI transcoders

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On Mon, May 04, 2020 at 03:52:22PM -0700, Matt Roper wrote:
> From: Aditya Swarup <aditya.swarup@xxxxxxxxx>
> 
> RKL doesn't have DSI outputs, so we shouldn't try to read out the DSI
> transcoder registers.
> 
> Signed-off-by: Aditya Swarup <aditya.swarup@xxxxxxxxx>
> Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/display/intel_display.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index 2eeafda82188..e63221b8a9a6 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -10901,7 +10901,7 @@ static bool hsw_get_transcoder_state(struct intel_crtc *crtc,
>  	intel_wakeref_t wf;
>  	u32 tmp;
>  
> -	if (INTEL_GEN(dev_priv) >= 11)
> +	if (!IS_ROCKETLAKE(dev_priv) && INTEL_GEN(dev_priv) >= 11)
>  		panel_transcoder_mask |=
>  			BIT(TRANSCODER_DSI_0) | BIT(TRANSCODER_DSI_1);

I suspect we want
1) fix the deivice info transcoder mask (if not already done)
2) use for_each_transcoder_masked() here

>  
> -- 
> 2.24.1
> 
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-- 
Ville Syrjälä
Intel
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