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Thu, 04 Jun 2026 05:41:39 -0700 (PDT) Received: from arrakeen.starnux.net ([2a01:e0a:106d:1080:52eb:f6ff:feb3:451a]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-4601f35133csm16242686f8f.25.2026.06.04.05.41.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 Jun 2026 05:41:39 -0700 (PDT) From: Neil Armstrong Date: Thu, 04 Jun 2026 14:41:35 +0200 Subject: [PATCH 1/2] drm/panel: Enable DSC for Visionox VTDR6130 panel MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260604-topic-sm8x50-vtdr6130-dsc-v1-1-09bcd1dff1fb@linaro.org> References: <20260604-topic-sm8x50-vtdr6130-dsc-v1-0-09bcd1dff1fb@linaro.org> In-Reply-To: <20260604-topic-sm8x50-vtdr6130-dsc-v1-0-09bcd1dff1fb@linaro.org> To: Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Neil Armstrong , Jun Nie X-Mailer: b4 0.15.1 X-Developer-Signature: v=1; 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a=openpgp; fpr=89EC3D058446217450F22848169AB7B1A4CFF8AE X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Jun Nie 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 Signed-off-by: Neil Armstrong --- drivers/gpu/drm/panel/panel-visionox-vtdr6130.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/gpu/drm/panel/panel-visionox-vtdr6130.c b/drivers/gpu/drm/panel/panel-visionox-vtdr6130.c index 97a79411e1ec..0cdcdbbc766d 100644 --- a/drivers/gpu/drm/panel/panel-visionox-vtdr6130.c +++ b/drivers/gpu/drm/panel/panel-visionox-vtdr6130.c @@ -9,6 +9,7 @@ #include #include +#include #include #include #include @@ -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 | -- 2.34.1