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drm/i915/dsc: add support for computing and writing PPS for DSI encoders

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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 <manasi.d.navare@intel.com>
Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/461db10b1f4d76625625a9f2b1e3d932fff42799.1575974743.git.jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2019-12-10 12:50:50 +02:00
parent c42c38ec30
commit 2d15f3925a
1 changed files with 24 additions and 1 deletions
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25
drivers/gpu/drm/i915/display/intel_vdsc.c
View File

@ -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;