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AJvYcCVZBH1fX+ZxdhJKD7cf8gFmjaDBvAeLDkHuNiYJMLNdpR6eJu6TVUXlsIG39c2a0MycoGeMkAcsXcE+/u99BkdfNUqhyvLSJOjYlNUOrw== X-Gm-Message-State: AOJu0YxAGxqNwqc1zZ2a9nBfhLrV6kCAsRjyOi/3X4W3VyS6jpOCoGQ8 UnLoPIjqWwVDj1Ux4YDhBtmixmnXQ4T6x4bNOik8Uv9i/6ez8lreUDGqa7bkokA= X-Google-Smtp-Source: AGHT+IFtZtWGN0gpIdln/salcEy9PVgCOB6uagldfXRPfnddW1BVC0WLkiU9IKKaikRLoMnyPVkDoA== X-Received: by 2002:a05:6a00:4f86:b0:6ea:74d4:a00d with SMTP id ld6-20020a056a004f8600b006ea74d4a00dmr3250046pfb.5.1711624346654; Thu, 28 Mar 2024 04:12:26 -0700 (PDT) Received: from niej-think.bbrouter ([112.65.12.82]) by smtp.gmail.com with ESMTPSA id k7-20020aa792c7000000b006eab9ef5d4esm1114607pfa.50.2024.03.28.04.12.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Mar 2024 04:12:26 -0700 (PDT) From: Jun Nie To: neil.armstrong@linaro.org, dmitry.baryshkov@linaro.org Cc: sam@ravnborg.org, airlied@gmail.com, daniel@ffwll.ch, quic_parellan@quicinc.com, freedreno@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, robdclark@gmail.com, seanpaul@chromium.org, swboyd@chromium.org, quic_abhinavk@quicinc.com, quic_jesszhan@quicinc.com, marijn.suijten@somainline.org, sean@poorly.run, Jun Nie Subject: [PATCH 3/3] drm/panel: Enable DSC for Visionox VTDR6130 panel Date: Thu, 28 Mar 2024 19:11:58 +0800 Message-Id: <20240328111158.2074351-3-jun.nie@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240328111158.2074351-1-jun.nie@linaro.org> References: <20240328111158.2074351-1-jun.nie@linaro.org> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Enable display compression (DSC v1.2) for 1080x2400 Visionox VTDR6130 AMOLED DSI panel. DTS property is needed to enable DSC. Default configuration is video mode + non-DSC for any back compatibility. Below modes works on SM8650. While cmd mode does not work yet. - video mode + DSC - video mode - cmd mode + DSC Signed-off-by: Jun Nie --- .../gpu/drm/panel/panel-visionox-vtdr6130.c | 58 ++++++++++++++++++- 1 file changed, 57 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/panel/panel-visionox-vtdr6130.c b/drivers/gpu/drm/panel/panel-visionox-vtdr6130.c index 540099253e1b..d6c44816cdd0 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 @@ -17,9 +18,12 @@ 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[3]; + bool cmd_mode; + bool dsc_enable; }; static inline struct visionox_vtdr6130 *to_visionox_vtdr6130(struct drm_panel *panel) @@ -49,12 +53,20 @@ static int visionox_vtdr6130_on(struct visionox_vtdr6130 *ctx) if (ret) return ret; + if (ctx->dsc_enable) + mipi_dsi_dcs_write_seq(dsi, 0x03, 0x01); + mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x20); mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_DISPLAY_BRIGHTNESS, 0x00, 0x00); mipi_dsi_dcs_write_seq(dsi, 0x59, 0x09); mipi_dsi_dcs_write_seq(dsi, 0x6c, 0x01); mipi_dsi_dcs_write_seq(dsi, 0x6d, 0x00); - mipi_dsi_dcs_write_seq(dsi, 0x6f, 0x01); + + if (ctx->cmd_mode) + mipi_dsi_dcs_write_seq(dsi, 0x6f, 0x02); + else + mipi_dsi_dcs_write_seq(dsi, 0x6f, 0x01); + mipi_dsi_dcs_write_seq(dsi, 0x70, 0x12, 0x00, 0x00, 0xab, 0x30, 0x80, 0x09, 0x60, 0x04, 0x38, 0x00, 0x28, 0x02, 0x1c, 0x02, 0x1c, 0x02, 0x00, @@ -205,6 +217,26 @@ static const struct drm_display_mode visionox_vtdr6130_mode = { .height_mm = 157, }; +static int visionox_vtdr6130_enable(struct drm_panel *panel) +{ + struct visionox_vtdr6130 *ctx = to_visionox_vtdr6130(panel); + struct mipi_dsi_device *dsi = ctx->dsi; + struct drm_dsc_picture_parameter_set pps; + int ret; + + if (!dsi->dsc) + return 0; + + drm_dsc_pps_payload_pack(&pps, dsi->dsc); + ret = mipi_dsi_picture_parameter_set(dsi, &pps); + if (ret) { + dev_err(&dsi->dev, "Failed to set PPS\n"); + return ret; + } + + return 0; +} + static int visionox_vtdr6130_get_modes(struct drm_panel *panel, struct drm_connector *connector) { @@ -228,6 +260,7 @@ static const struct drm_panel_funcs visionox_vtdr6130_panel_funcs = { .prepare = visionox_vtdr6130_prepare, .unprepare = visionox_vtdr6130_unprepare, .get_modes = visionox_vtdr6130_get_modes, + .enable = visionox_vtdr6130_enable, }; static int visionox_vtdr6130_bl_update_status(struct backlight_device *bl) @@ -260,12 +293,32 @@ static int visionox_vtdr6130_probe(struct mipi_dsi_device *dsi) { struct device *dev = &dsi->dev; struct visionox_vtdr6130 *ctx; + struct drm_dsc_config *dsc; int ret; ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; + ctx->cmd_mode = of_property_read_bool(dev->of_node, "enforce-cmd-mode"); + ctx->dsc_enable = of_property_read_bool(dev->of_node, "enable-dsc"); + + /* Set DSC params */ + if (ctx->dsc_enable) { + dsc = &ctx->dsc; + dsc->dsc_version_major = 0x1; + dsc->dsc_version_minor = 0x2; + dsc->slice_height = 40; + dsc->slice_width = 540; + dsc->slice_count = 2; + dsc->slice_per_pkt = 1; + dsc->bits_per_component = 8; + dsc->bits_per_pixel = 8 << 4; + dsc->block_pred_enable = true; + + dsi->dsc = dsc; + } + ctx->supplies[0].supply = "vddio"; ctx->supplies[1].supply = "vci"; ctx->supplies[2].supply = "vdd"; @@ -306,6 +359,9 @@ static int visionox_vtdr6130_probe(struct mipi_dsi_device *dsi) return ret; } + dev_err(&dsi->dev, "discovered with %s mode %s\n", + ctx->cmd_mode ? "cmd" : "video", + ctx->dsc_enable ? "and DSC enabled" : ""); return 0; }