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Fri, 22 Mar 2024 06:22:37 -0700 (PDT) Received: from [127.0.1.1] ([79.114.172.194]) by smtp.gmail.com with ESMTPSA id m22-20020a170906721600b00a461e206c00sm1014176ejk.20.2024.03.22.06.22.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 22 Mar 2024 06:22:36 -0700 (PDT) From: Abel Vesa Date: Fri, 22 Mar 2024 15:22:22 +0200 Subject: [PATCH v3 1/2] drm/msm/dp: Add support for determining the eDP/DP mode from DT Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240322-x1e80100-display-refactor-connector-v3-1-af14c29af665@linaro.org> References: <20240322-x1e80100-display-refactor-connector-v3-0-af14c29af665@linaro.org> In-Reply-To: <20240322-x1e80100-display-refactor-connector-v3-0-af14c29af665@linaro.org> To: Rob Clark , Abhinav Kumar , Dmitry Baryshkov , Sean Paul , Marijn Suijten , David Airlie , Daniel Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kuogee Hsieh , Bjorn Andersson , Konrad Dybcio , Dmitry Baryshkov , Johan Hovold Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Abel Vesa X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; 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a=openpgp; fpr=6AFF162D57F4223A8770EF5AF7BF214136F41FAE Instead of relying on different compatibles for eDP and DP, lookup the panel node in devicetree to figure out the connector type and then pass on that information to the PHY. External DP is not described in DT, therefore, assume it's eDP if panel node is present. Signed-off-by: Abel Vesa --- drivers/gpu/drm/msm/dp/dp_display.c | 43 +++++++++++++++++++++++++++++++++---- 1 file changed, 39 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index c4cb82af5c2f..c9763f77c832 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -726,6 +726,14 @@ static int dp_init_sub_modules(struct dp_display_private *dp) if (IS_ERR(phy)) return PTR_ERR(phy); + rc = phy_set_mode_ext(phy, PHY_MODE_DP, + dp->dp_display.is_edp ? PHY_SUBMODE_EDP : PHY_SUBMODE_DP); + if (rc) { + DRM_ERROR("failed to set phy submode, rc = %d\n", rc); + dp->catalog = NULL; + goto error; + } + dp->catalog = dp_catalog_get(dev); if (IS_ERR(dp->catalog)) { rc = PTR_ERR(dp->catalog); @@ -734,9 +742,7 @@ static int dp_init_sub_modules(struct dp_display_private *dp) goto error; } - dp->aux = dp_aux_get(dev, dp->catalog, - phy, - dp->dp_display.is_edp); + dp->aux = dp_aux_get(dev, dp->catalog, phy, dp->dp_display.is_edp); if (IS_ERR(dp->aux)) { rc = PTR_ERR(dp->aux); DRM_ERROR("failed to initialize aux, rc = %d\n", rc); @@ -1241,6 +1247,35 @@ static int dp_auxbus_done_probe(struct drm_dp_aux *aux) return dp_display_probe_tail(aux->dev); } +static int dp_display_get_connector_type(struct platform_device *pdev, + const struct msm_dp_desc *desc) +{ + struct device *dev = &pdev->dev; + struct device_node *aux_bus; + struct device_node *panel; + int ret = DRM_MODE_CONNECTOR_DisplayPort; + + /* legacy platforms specify connector type in match data */ + if (desc->connector_type == DRM_MODE_CONNECTOR_eDP || + desc->connector_type == DRM_MODE_CONNECTOR_DisplayPort) + return desc->connector_type; + + aux_bus = of_get_child_by_name(dev->of_node, "aux-bus"); + if (!aux_bus) + goto out; + + panel = of_get_child_by_name(aux_bus, "panel"); + if (!panel) + goto out; + + ret = DRM_MODE_CONNECTOR_eDP; + +out: + of_node_put(panel); + of_node_put(aux_bus); + return ret; +} + static int dp_display_probe(struct platform_device *pdev) { int rc = 0; @@ -1263,7 +1298,7 @@ static int dp_display_probe(struct platform_device *pdev) dp->dp_display.pdev = pdev; dp->name = "drm_dp"; dp->id = desc->id; - dp->dp_display.connector_type = desc->connector_type; + dp->dp_display.connector_type = dp_display_get_connector_type(pdev, desc); dp->wide_bus_supported = desc->wide_bus_supported; dp->dp_display.is_edp = (dp->dp_display.connector_type == DRM_MODE_CONNECTOR_eDP); From patchwork Fri Mar 22 13:22:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Abel Vesa X-Patchwork-Id: 782062 Received: from mail-ej1-f51.google.com (mail-ej1-f51.google.com [209.85.218.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BBEE446522 for ; 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a=openpgp; fpr=6AFF162D57F4223A8770EF5AF7BF214136F41FAE Add the X1E80100 DP descs and compatible. This platform will be using a single compatible for both eDP and DP mode. The actual mode will be set based on the presence of the panel node in DT. Signed-off-by: Abel Vesa --- drivers/gpu/drm/msm/dp/dp_display.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index c9763f77c832..95f6cf949fe6 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -171,6 +171,14 @@ static const struct msm_dp_desc sm8650_dp_descs[] = { {} }; +static const struct msm_dp_desc x1e80100_dp_descs[] = { + { .io_start = 0x0ae90000, .id = MSM_DP_CONTROLLER_0, .wide_bus_supported = true }, + { .io_start = 0x0ae98000, .id = MSM_DP_CONTROLLER_1, .wide_bus_supported = true }, + { .io_start = 0x0ae9a000, .id = MSM_DP_CONTROLLER_2, .wide_bus_supported = true }, + { .io_start = 0x0aea0000, .id = MSM_DP_CONTROLLER_3, .wide_bus_supported = true }, + {} +}; + static const struct of_device_id dp_dt_match[] = { { .compatible = "qcom,sc7180-dp", .data = &sc7180_dp_descs }, { .compatible = "qcom,sc7280-dp", .data = &sc7280_dp_descs }, @@ -182,6 +190,7 @@ static const struct of_device_id dp_dt_match[] = { { .compatible = "qcom,sdm845-dp", .data = &sc7180_dp_descs }, { .compatible = "qcom,sm8350-dp", .data = &sm8350_dp_descs }, { .compatible = "qcom,sm8650-dp", .data = &sm8650_dp_descs }, + { .compatible = "qcom,x1e80100-dp", .data = &x1e80100_dp_descs }, {} };