From 33fd0375f1c31e20db08535aa9ac36df8156af8a Mon Sep 17 00:00:00 2001 From: Nemesa Garg Date: Thu, 15 Jan 2026 17:09:48 +0530 Subject: [PATCH] drm/i915/casf: Disable CASF with joiner Disable CASF with joiner as it is not supported in hardware. v2: Replace dmesg_WARN with drm_dbg_kms. [Jani] v3: Modify commit message. [Suraj] Signed-off-by: Nemesa Garg Reviewed-by: Suraj Kandpal Signed-off-by: Suraj Kandpal Link: https://patch.msgid.link/20260115113948.641822-1-nemesa.garg@intel.com --- drivers/gpu/drm/i915/display/intel_casf.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_casf.c b/drivers/gpu/drm/i915/display/intel_casf.c index 95339b496f24..0fe4398a1a4e 100644 --- a/drivers/gpu/drm/i915/display/intel_casf.c +++ b/drivers/gpu/drm/i915/display/intel_casf.c @@ -116,6 +116,12 @@ int intel_casf_compute_config(struct intel_crtc_state *crtc_state) return 0; } + /* CASF with joiner not supported in hardware */ + if (crtc_state->joiner_pipes) { + drm_dbg_kms(display->drm, "CASF not supported with joiner\n"); + return -EINVAL; + } + crtc_state->hw.casf_params.casf_enable = true; /*