From 82ab75c4520cfa77c0409e70a2623561233cd109 Mon Sep 17 00:00:00 2001 From: Chaitanya Kumar Borah Date: Wed, 23 Oct 2024 10:11:22 +0530 Subject: drm/i915/display: Allow fastset for change in HDR infoframe Changes in Dynamic Range and Mastering infoframe should not trigger a full modeset. Therefore, allow fastset. DP SDP programming is already hooked up in the fastset flow but HDMI AVI infoframe update is not, add it. Any other infoframe that can be fastset should be added to the helper intel_hdmi_fastset_infoframes(). v3: - Create a wrapper intel_ddi_update_pipe_hdmi to stick to uniform naming (Jani) - Do not disable HDMI AVI infoframe if already disabled (Uma) v2: - Update HDMI AVI infoframe during fastset. Signed-off-by: Chaitanya Kumar Borah Reviewed-by: Uma Shankar Signed-off-by: Animesh Manna Link: https://patchwork.freedesktop.org/patch/msgid/20241023044122.3889137-1-chaitanya.kumar.borah@intel.com --- drivers/gpu/drm/i915/display/intel_hdmi.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'drivers/gpu/drm/i915/display/intel_hdmi.c') diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index e1a1351bc94f..c6ce6bb88d7c 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -1212,6 +1212,30 @@ static void vlv_set_infoframes(struct intel_encoder *encoder, &crtc_state->infoframes.hdmi); } +void intel_hdmi_fastset_infoframes(struct intel_encoder *encoder, + const struct intel_crtc_state *crtc_state, + const struct drm_connector_state *conn_state) +{ + struct intel_display *display = to_intel_display(encoder); + i915_reg_t reg = HSW_TVIDEO_DIP_CTL(display, + crtc_state->cpu_transcoder); + u32 val = intel_de_read(display, reg); + + if ((crtc_state->infoframes.enable & + intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_DRM)) == 0 && + (val & VIDEO_DIP_ENABLE_DRM_GLK) == 0) + return; + + val &= ~(VIDEO_DIP_ENABLE_DRM_GLK); + + intel_de_write(display, reg, val); + intel_de_posting_read(display, reg); + + intel_write_infoframe(encoder, crtc_state, + HDMI_INFOFRAME_TYPE_DRM, + &crtc_state->infoframes.drm); +} + static void hsw_set_infoframes(struct intel_encoder *encoder, bool enable, const struct intel_crtc_state *crtc_state, -- cgit v1.2.3