From: Anshuman Gupta Date: Wed, 14 Oct 2020 19:19:35 +0000 (-0700) Subject: drm/i915/dg1: DG1 does not support DC6 X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=cbb6ea8c6841f172efcf794bc5b2c70cb3c3f249;p=linux.git drm/i915/dg1: DG1 does not support DC6 DC6 is not supported on DG1, so change the allowed DC mask for DG1. This is not yet on bspec, but it has been confirmed by HW engineers. Cc: Uma Shankar Signed-off-by: Anshuman Gupta Reviewed-by: Matt Roper Signed-off-by: Lucas De Marchi Link: https://patchwork.freedesktop.org/patch/msgid/20201014191937.1266226-9-lucas.demarchi@intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c index 18af078c208b7..45806cfc679aa 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power.c +++ b/drivers/gpu/drm/i915/display/intel_display_power.c @@ -4492,7 +4492,10 @@ 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)) + 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