drm/i915/display/cnl+: Handle fused off DSC
DSC could be fused off, so not all GEN10+ platforms will support it.
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Martin Peres <martin.peres@linux.intel.com>
Reviewed-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191026001323.216052-5-jose.souza@intel.com
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 32a5371..5894e46 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -7755,6 +7755,7 @@ enum {
#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 CNL_DFSM_DISPLAY_DSC_DISABLE (1 << 7)
#define SKL_DSSM _MMIO(0x51004)
#define CNL_DSSM_CDCLK_PLL_REFCLK_24MHz (1 << 31)