diff options
| author | Vinod Koul <vkoul@kernel.org> | 2020-03-04 11:22:14 +0530 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2022-03-25 16:14:41 +0530 |
| commit | e0037dbdf7414aa4aed37610616a377d00a7b08b (patch) | |
| tree | 7ef42954b787ba8d34507c8e7859fa63558fa775 /drivers/gpu/drm/panel | |
| parent | 42409bd50bcf4b71c421717c3e623a3d6f3fe900 (diff) | |
drm: panel: sw43408: Add DSC support
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/panel')
| -rw-r--r-- | drivers/gpu/drm/panel/panel-lg-sw43408.c | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/drivers/gpu/drm/panel/panel-lg-sw43408.c b/drivers/gpu/drm/panel/panel-lg-sw43408.c index e6192df05a7c..cf99461f22d9 100644 --- a/drivers/gpu/drm/panel/panel-lg-sw43408.c +++ b/drivers/gpu/drm/panel/panel-lg-sw43408.c @@ -20,6 +20,7 @@ #include <drm/drm_modes.h> #include <drm/drm_panel.h> #include <drm/drm_print.h> +#include <drm/drm_dsc.h> #include <video/mipi_display.h> @@ -397,6 +398,7 @@ poweroff: static int lg_panel_enable(struct drm_panel *panel) { struct panel_info *pinfo = to_panel_info(panel); + struct drm_dsc_picture_parameter_set pps; int ret; if (pinfo->enabled) @@ -408,6 +410,20 @@ static int lg_panel_enable(struct drm_panel *panel) return ret; } + if (panel->dsc) { + /* this panel uses DSC so send the pps */ + drm_dsc_pps_payload_pack(&pps, panel->dsc); + print_hex_dump(KERN_DEBUG, "DSC params:", DUMP_PREFIX_NONE, + 16, 1, &pps, sizeof(pps), false); + + //ret = mipi_dsi_picture_parameter_set(pinfo->link, &pps); + //if (ret < 0) { + // DRM_DEV_ERROR(panel->dev, + // "failed to set pps: %d\n", ret); + // return ret; + //} + } + pinfo->enabled = true; return 0; @@ -655,6 +671,7 @@ static int panel_probe(struct mipi_dsi_device *dsi) { struct panel_info *pinfo; const struct panel_desc *desc; + struct drm_dsc_config *dsc; int err; pinfo = devm_kzalloc(&dsi->dev, sizeof(*pinfo), GFP_KERNEL); @@ -674,8 +691,24 @@ static int panel_probe(struct mipi_dsi_device *dsi) if (err < 0) return err; - err = mipi_dsi_attach(dsi); - return err; + /* The panel is DSC panel only, set the dsc params */ + dsc = devm_kzalloc(&dsi->dev, sizeof(*dsc), GFP_KERNEL); + if (!dsc) + return -ENOMEM; + + dsc->dsc_version_major = 0x1; + dsc->dsc_version_minor = 0x1; + + dsc->slice_height = 16; + dsc->slice_width = 540; + dsc->slice_count = 1; + dsc->bits_per_component = 8; + dsc->bits_per_pixel = 8; + dsc->block_pred_enable = true; + + pinfo->base.dsc = dsc; + + return mipi_dsi_attach(dsi); } static int panel_remove(struct mipi_dsi_device *dsi) |