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drm/panel: Enable DSC for Visionox VTDR6130 panel

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Enable display compression (DSC v1.2) for 1080x2400 Visionox
VTDR6130 AMOLED DSI panel.

This panel is the default panel for the following devices:
- SM8550-QRD
- SM8550-HDK
- SM8650-QRD
- SM8650-HDK

Enable DSC since now functional in the MSM/DPU/DSI driver.

Signed-off-by: Jun Nie <jun.nie@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260703-topic-sm8x50-vtdr6130-dsc-v4-1-9eff51ec717a@linaro.org
This commit is contained in:
Jun Nie
2026-07-03 10:10:19 +02:00
committed by Neil Armstrong
parent 1190fc8d7b
commit dd336686fa
2 changed files with 20 additions and 0 deletions
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2
drivers/gpu/drm/panel/Kconfig
View File

@@ -1376,6 +1376,8 @@ config DRM_PANEL_VISIONOX_VTDR6130
depends on OF
depends on DRM_MIPI_DSI
depends on BACKLIGHT_CLASS_DEVICE
select DRM_DISPLAY_DSC_HELPER
select DRM_DISPLAY_HELPER
help
Say Y here if you want to enable support for Visionox
VTDR6130 1080x2400 AMOLED DSI panel.

18
drivers/gpu/drm/panel/panel-visionox-vtdr6130.c
View File

@@ -9,6 +9,7 @@
#include <linux/of.h>
#include <drm/display/drm_dsc.h>
#include <drm/display/drm_dsc_helper.h>
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_modes.h>
#include <drm/drm_panel.h>
@@ -17,6 +18,7 @@
struct visionox_vtdr6130 {
struct drm_panel panel;
struct drm_dsc_config dsc;
struct mipi_dsi_device *dsi;
struct gpio_desc *reset_gpio;
struct regulator_bulk_data *supplies;
@@ -47,9 +49,12 @@ static int visionox_vtdr6130_on(struct visionox_vtdr6130 *ctx)
{
struct mipi_dsi_device *dsi = ctx->dsi;
struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
struct drm_dsc_picture_parameter_set pps;
dsi->mode_flags |= MIPI_DSI_MODE_LPM;
mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x03, 0x01);
mipi_dsi_dcs_set_tear_on_multi(&dsi_ctx, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
mipi_dsi_dcs_write_seq_multi(&dsi_ctx,
@@ -123,6 +128,9 @@ static int visionox_vtdr6130_on(struct visionox_vtdr6130 *ctx)
mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
mipi_dsi_msleep(&dsi_ctx, 20);
drm_dsc_pps_payload_pack(&pps, dsi->dsc);
mipi_dsi_picture_parameter_set_multi(&dsi_ctx, &pps);
return dsi_ctx.accum_err;
}
@@ -269,6 +277,16 @@ static int visionox_vtdr6130_probe(struct mipi_dsi_device *dsi)
ctx->dsi = dsi;
mipi_dsi_set_drvdata(dsi, ctx);
ctx->dsc.dsc_version_major = 0x1;
ctx->dsc.dsc_version_minor = 0x2;
ctx->dsc.slice_height = 40;
ctx->dsc.slice_width = 540;
ctx->dsc.slice_count = 2;
ctx->dsc.bits_per_component = 8;
ctx->dsc.bits_per_pixel = 8 << 4;
ctx->dsc.block_pred_enable = true;
dsi->dsc = &ctx->dsc;
dsi->lanes = 4;
dsi->format = MIPI_DSI_FMT_RGB888;
dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_NO_EOT_PACKET |