On Fri, 2020-07-24 at 14:39 -0700, Lucas De Marchi wrote:
> From: Anshuman Gupta <
> anshuman.gupta@xxxxxxxxx
> >
>
> DC6 is not supported on DG1, so change the allowed DC mask for DG1.
>
> Cc: Uma Shankar <
> uma.shankar@xxxxxxxxx
> >
> Signed-off-by: Anshuman Gupta <
> anshuman.gupta@xxxxxxxxx
> >
> ---
> drivers/gpu/drm/i915/display/intel_display_power.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
> index 21f39c94056e..389a0f2d3a14 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_power.c
> +++ b/drivers/gpu/drm/i915/display/intel_display_power.c
> @@ -4689,7 +4689,10 @@ static u32 get_allowed_dc_mask(const struct drm_i915_private *dev_priv,
> int max_dc;
>
> if (INTEL_GEN(dev_priv) >= 12) {
> - max_dc = 4;
> + if (IS_DG1(dev_priv))
Better change to IS_DGFX() as DC6 is a SOC power-saving state, no discrete card will enter it.
With this change:
Reviewed-by: José Roberto de Souza <jose.souza@xxxxxxxxx>
> + max_dc = 3;
> + else
> + max_dc = 4;
> /*
> * DC9 has a separate HW flow from the rest of the DC states,
> * not depending on the DMC firmware. It's needed by system
>
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