From 2d15f3925a4b508b6ad10078bd324da1e95960a7 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Tue, 10 Dec 2019 12:50:50 +0200 Subject: drm/i915/dsc: add support for computing and writing PPS for DSI encoders MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add DSI specific computation and transmission to display of PPS. With hopes that this approach will work for both DP and DSI encoders. Cc: Manasi Navare Cc: Vandita Kulkarni Cc: Ville Syrjälä Reviewed-by: Vandita Kulkarni Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/461db10b1f4d76625625a9f2b1e3d932fff42799.1575974743.git.jani.nikula@intel.com --- drivers/gpu/drm/i915/display/intel_vdsc.c | 25 ++++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) (limited to 'drivers/gpu/drm') diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.c b/drivers/gpu/drm/i915/display/intel_vdsc.c index c53024dfb1ec..7bd727129a8f 100644 --- a/drivers/gpu/drm/i915/display/intel_vdsc.c +++ b/drivers/gpu/drm/i915/display/intel_vdsc.c @@ -10,6 +10,7 @@ #include "i915_drv.h" #include "intel_display_types.h" +#include "intel_dsi.h" #include "intel_vdsc.h" enum ROW_INDEX_BPP { @@ -844,6 +845,25 @@ static void intel_dsc_pps_configure(struct intel_encoder *encoder, } } +static void intel_dsc_dsi_pps_write(struct intel_encoder *encoder, + const struct intel_crtc_state *crtc_state) +{ + const struct drm_dsc_config *vdsc_cfg = &crtc_state->dsc.config; + struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base); + struct mipi_dsi_device *dsi; + struct drm_dsc_picture_parameter_set pps; + enum port port; + + drm_dsc_pps_payload_pack(&pps, vdsc_cfg); + + for_each_dsi_port(port, intel_dsi->ports) { + dsi = intel_dsi->dsi_hosts[port]->device; + + mipi_dsi_picture_parameter_set(dsi, &pps); + mipi_dsi_compression_mode(dsi, true); + } +} + static void intel_dsc_dp_pps_write(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { @@ -882,7 +902,10 @@ void intel_dsc_enable(struct intel_encoder *encoder, intel_dsc_pps_configure(encoder, crtc_state); - intel_dsc_dp_pps_write(encoder, crtc_state); + if (encoder->type == INTEL_OUTPUT_DSI) + intel_dsc_dsi_pps_write(encoder, crtc_state); + else + intel_dsc_dp_pps_write(encoder, crtc_state); if (crtc_state->cpu_transcoder == TRANSCODER_EDP) { dss_ctl1_reg = DSS_CTL1; -- cgit v1.2.3