From: José Roberto de Souza Date: Sat, 26 Oct 2019 00:13:22 +0000 (-0700) Subject: drm/i915/display/icl+: Check if DMC is fused off X-Git-Tag: v5.10.7~3692^2~30^2~28 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ee595888e1c25fb31bbc10a317a576311356babd;p=platform%2Fkernel%2Flinux-rpi.git drm/i915/display/icl+: Check if DMC is fused off Check if DMC is fused off and handle it. Cc: Ville Syrjälä Cc: Martin Peres Reviewed-by: Ramalingam C Signed-off-by: José Roberto de Souza Link: https://patchwork.freedesktop.org/patch/msgid/20191026001323.216052-4-jose.souza@intel.com --- diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index ecbcc0e..32a5371 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -7750,6 +7750,7 @@ enum { #define SKL_DFSM_CDCLK_LIMIT_540 (1 << 23) #define SKL_DFSM_CDCLK_LIMIT_450 (2 << 23) #define SKL_DFSM_CDCLK_LIMIT_337_5 (3 << 23) +#define ICL_DFSM_DMC_DISABLE (1 << 23) #define SKL_DFSM_PIPE_A_DISABLE (1 << 30) #define SKL_DFSM_PIPE_B_DISABLE (1 << 21) #define SKL_DFSM_PIPE_C_DISABLE (1 << 28) diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c index a3e9071..fa64648 100644 --- a/drivers/gpu/drm/i915/intel_device_info.c +++ b/drivers/gpu/drm/i915/intel_device_info.c @@ -987,6 +987,9 @@ void intel_device_info_runtime_init(struct drm_i915_private *dev_priv) if (dfsm & SKL_DFSM_DISPLAY_PM_DISABLE) info->display.has_fbc = 0; + + if (INTEL_GEN(dev_priv) >= 11 && (dfsm & ICL_DFSM_DMC_DISABLE)) + info->display.has_csr = 0; } /* Initialize slice/subslice/EU info */