[Intel-gfx] [PATCH v2 07/25] drm/i915/tgl: Check if pipe D is fused

[Kahola, Mika]

On Mon, 2019-07-08 at 16:16 -0700, Lucas De Marchi wrote:
> From: José Roberto de Souza <jose.souza at intel.com>
> 
> On Tiger Lake there is one more pipe - check if it's fused.
> 
> Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
> Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>

Reviewed-by: Mika Kahola <mika.kahola at intel.com>

> ---
>  drivers/gpu/drm/i915/i915_reg.h          | 1 +
>  drivers/gpu/drm/i915/intel_device_info.c | 3 +++
>  2 files changed, 4 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/i915_reg.h
> b/drivers/gpu/drm/i915/i915_reg.h
> index 31c6c168dde2..08dc71e4b818 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -7633,6 +7633,7 @@ enum {
>  #define SKL_DFSM_PIPE_A_DISABLE		(1 << 30)
>  #define SKL_DFSM_PIPE_B_DISABLE		(1 << 21)
>  #define SKL_DFSM_PIPE_C_DISABLE		(1 << 28)
> +#define TGL_DFSM_PIPE_D_DISABLE		(1 << 22)
>  
>  #define SKL_DSSM				_MMIO(0x51004)
>  #define CNL_DSSM_CDCLK_PLL_REFCLK_24MHz		(1 << 31)
> diff --git a/drivers/gpu/drm/i915/intel_device_info.c
> b/drivers/gpu/drm/i915/intel_device_info.c
> index e0d9a7a37994..f99c9fd497b2 100644
> --- a/drivers/gpu/drm/i915/intel_device_info.c
> +++ b/drivers/gpu/drm/i915/intel_device_info.c
> @@ -938,6 +938,9 @@ void intel_device_info_runtime_init(struct
> drm_i915_private *dev_priv)
>  			enabled_mask &= ~BIT(PIPE_B);
>  		if (dfsm & SKL_DFSM_PIPE_C_DISABLE)
>  			enabled_mask &= ~BIT(PIPE_C);
> +		if (INTEL_GEN(dev_priv) >= 12 &&
> +		    (dfsm & TGL_DFSM_PIPE_D_DISABLE))
> +			enabled_mask &= ~BIT(PIPE_D);
>  
>  		/*
>  		 * At least one pipe should be enabled and if there are