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GET /api/1.1/patches/2222408/?format=api
{ "id": 2222408, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2222408/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-gpio/patch/20260411-waveshare-dsi-touch-v2-12-75cdbeac5156@oss.qualcomm.com/", "project": { "id": 42, "url": "http://patchwork.ozlabs.org/api/1.1/projects/42/?format=api", "name": "Linux GPIO development", "link_name": "linux-gpio", "list_id": "linux-gpio.vger.kernel.org", "list_email": "linux-gpio@vger.kernel.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260411-waveshare-dsi-touch-v2-12-75cdbeac5156@oss.qualcomm.com>", "date": "2026-04-11T12:10:32", "name": "[v2,12/21] drm/panel: jadard-jd9365da-h3: support variable DSI configuration", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "7025d0a8272937ac6dc6343b4c421f87926ffb7c", "submitter": { "id": 90483, "url": "http://patchwork.ozlabs.org/api/1.1/people/90483/?format=api", "name": "Dmitry Baryshkov", "email": "dmitry.baryshkov@oss.qualcomm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-gpio/patch/20260411-waveshare-dsi-touch-v2-12-75cdbeac5156@oss.qualcomm.com/mbox/", "series": [ { "id": 499552, "url": "http://patchwork.ozlabs.org/api/1.1/series/499552/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-gpio/list/?series=499552", "date": "2026-04-11T12:10:21", "name": "drm/panel: support Waveshare DSI TOUCH kits", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/499552/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2222408/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2222408/checks/", "tags": {}, "headers": { "Return-Path": "\n <linux-gpio+bounces-35042-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-gpio@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=qualcomm.com header.i=@qualcomm.com header.a=rsa-sha256\n header.s=qcppdkim1 header.b=JGo2FMSp;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com\n header.a=rsa-sha256 header.s=google header.b=f5pOWEq/;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; 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charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Message-Id": "<20260411-waveshare-dsi-touch-v2-12-75cdbeac5156@oss.qualcomm.com>", "References": "<20260411-waveshare-dsi-touch-v2-0-75cdbeac5156@oss.qualcomm.com>", "In-Reply-To": "<20260411-waveshare-dsi-touch-v2-0-75cdbeac5156@oss.qualcomm.com>", "To": "Neil Armstrong <neil.armstrong@linaro.org>,\n Jessica Zhang <jesszhan0024@gmail.com>,\n David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,\n Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,\n Maxime Ripard <mripard@kernel.org>,\n Thomas Zimmermann <tzimmermann@suse.de>,\n Rob Herring <robh@kernel.org>,\n Krzysztof Kozlowski <krzk+dt@kernel.org>,\n Conor Dooley <conor+dt@kernel.org>,\n Cong Yang <yangcong5@huaqin.corp-partner.google.com>,\n Ondrej Jirman <megi@xff.cz>,\n Javier Martinez Canillas <javierm@redhat.com>,\n Jagan Teki <jagan@edgeble.ai>, Liam Girdwood <lgirdwood@gmail.com>,\n Mark Brown <broonie@kernel.org>, Linus Walleij <linusw@kernel.org>,\n Bartosz Golaszewski <brgl@kernel.org>", "Cc": "dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,\n linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org,\n Riccardo Mereu <r.mereu@arduino.cc>", "X-Mailer": "b4 0.15.1", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=4724;\n i=dmitry.baryshkov@oss.qualcomm.com; h=from:subject:message-id;\n bh=qxvBzNbPk5EGLmpGBUzeeM1J6/sQ4P9lHmhYV6FObtE=;\n b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBp2jpGCyNgWS/VQHaa0ne99WdMtW70FVv8Vqmq6\n FSQjKx5p5CJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCado6RgAKCRCLPIo+Aiko\n 1e35B/9opzvZiiuLKmiI1OJgaoCwVAxBS6CoXFP8o0c8sZMNFgzUBiqEY+ts0wffKKWllGxqLto\n EHogyQkv6gmrZs/tHz1n+QB2WM+e1LhzMAMvH3QtbFewJTU8kdsIy4Tjq6z5BP1vfspcOf+rLNB\n gp010f7ELFnKYmzALFbopIxREP2+WHURp2n17Jr6U5DliXqsuuv1HQ5yR/JPC0V/IFCLB1VQSi/\n fBFsBFkbeE8Xm6ETVo26S5iS64uxXCHMSn9iQvNZdm6zNplJdZ3tknF/n16AmJJOEHDaEYMcZzD\n UJkJ5BQ76D6+K8JeD6NMz3UgBfL78rE5HDMPIV97GdnoDP5G", "X-Developer-Key": "i=dmitry.baryshkov@oss.qualcomm.com; a=openpgp;\n fpr=8F88381DD5C873E4AE487DA5199BF1243632046A", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwNDExMDEwMiBTYWx0ZWRfX//w4xQT1J4ed\n ail1Os8iYcafRTGg/ima+jPLMbXX9ibUD4Jjh6YSmMXg+/ExgxAstq8laR4ydMq2K9cUfDThf1u\n lH54Ml+GTIV5RJoHBO/BPHm0/GteCznQKN5TaoUs7Ke4fHqXJDYZ2+hawb0LwsMeg6+ZI3pPMR4\n o46zEVMUOI/OUVbkRTwr2RJ0j5Kti/6Yj0XDKNymCFarNwp5T3HUq4mfDdI+ELwQt/YhcYISFvB\n YKV69g1S8smU5vPg05SOknFo4Yrxg9Ft6JFF/4yGFAaT2BIooGy43U9W+5GWRU5b99HoIULofGX\n 0fWtBtFr98OjAkfi/d3weCIZdUL1qgwWjiB2T0b9VfEvWo1uibnxxCDAYfx2/BdrMjy9YRgcVtz\n 6a+kC/n5VhFkN1zQlNEai6Mbm+JOryA6apc/z8Bz5L1aXYgH26mIuZgKPqau76ln2rZ2KwSqJ2s\n DUsoX4lvnKl54FzFnfg==", "X-Proofpoint-GUID": "clOjXSlCbXk0sq7rF-snLg62ckvO5vXf", "X-Authority-Analysis": "v=2.4 cv=MqliLWae c=1 sm=1 tr=0 ts=69da3a63 cx=c_pps\n a=JbAStetqSzwMeJznSMzCyw==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10\n a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22\n a=u7WPNUs3qKkmUXheDGA7:22 a=rJkE3RaqiGZ5pbrm-msn:22 a=VwQbUJbxAAAA:8\n a=EUspDBNiAAAA:8 a=hyEcIN-V0XolZWHaHNkA:9 a=QEXdDO2ut3YA:10\n a=uxP6HrT_eTzRwkO_Te1X:22", "X-Proofpoint-ORIG-GUID": "clOjXSlCbXk0sq7rF-snLg62ckvO5vXf", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-04-11_03,2026-04-09_02,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n clxscore=1015 adultscore=0 priorityscore=1501 phishscore=0 lowpriorityscore=0\n impostorscore=0 bulkscore=0 suspectscore=0 malwarescore=0 spamscore=0\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2604010000 definitions=main-2604110102" }, "content": "Several panels support attachment either using 4 DSI lanes or just 2. In\nsome cases, this requires a different panel mode to fulfill clock\nrequirements. Extend the driver to handle such cases by letting the\npanel description to omit lanes specification and parsing number of\nlanes from the DT.\n\nReviewed-by: Linus Walleij <linusw@kernel.org>\nTested-by: Riccardo Mereu <r.mereu@arduino.cc>\nSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>\n---\n drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c | 32 +++++++++++++++++-------\n 1 file changed, 23 insertions(+), 9 deletions(-)", "diff": "diff --git a/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c b/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c\nindex 1884ad2404cd..5d9db2e1f28f 100644\n--- a/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c\n+++ b/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c\n@@ -10,6 +10,7 @@\n \n #include <drm/drm_mipi_dsi.h>\n #include <drm/drm_modes.h>\n+#include <drm/drm_of.h>\n #include <drm/drm_panel.h>\n #include <drm/drm_print.h>\n #include <drm/drm_probe_helper.h>\n@@ -23,7 +24,8 @@\n struct jadard;\n \n struct jadard_panel_desc {\n-\tconst struct drm_display_mode mode;\n+\tconst struct drm_display_mode *mode_4ln;\n+\tconst struct drm_display_mode *mode_2ln;\n \tunsigned int lanes;\n \tenum mipi_dsi_pixel_format format;\n \tint (*init)(struct jadard *jadard);\n@@ -57,7 +59,10 @@ static void jadard_enable_standard_cmds(struct mipi_dsi_multi_context *dsi_ctx)\n \tmipi_dsi_dcs_write_seq_multi(dsi_ctx, 0xe1, 0x93);\n \tmipi_dsi_dcs_write_seq_multi(dsi_ctx, 0xe2, 0x65);\n \tmipi_dsi_dcs_write_seq_multi(dsi_ctx, 0xe3, 0xf8);\n-\tmipi_dsi_dcs_write_seq_multi(dsi_ctx, 0x80, 0x03);\n+\tif (dsi_ctx->dsi->lanes == 2)\n+\t\tmipi_dsi_dcs_write_seq_multi(dsi_ctx, 0x80, 0x01);\n+\telse\n+\t\tmipi_dsi_dcs_write_seq_multi(dsi_ctx, 0x80, 0x03);\n }\n \n static inline struct jadard *panel_to_jadard(struct drm_panel *panel)\n@@ -151,7 +156,10 @@ static int jadard_get_modes(struct drm_panel *panel,\n {\n \tstruct jadard *jadard = panel_to_jadard(panel);\n \n-\treturn drm_connector_helper_get_modes_fixed(connector, &jadard->desc->mode);\n+\tif (jadard->dsi->lanes == 2)\n+\t\treturn drm_connector_helper_get_modes_fixed(connector, jadard->desc->mode_2ln);\n+\telse\n+\t\treturn drm_connector_helper_get_modes_fixed(connector, jadard->desc->mode_4ln);\n }\n \n static enum drm_panel_orientation jadard_panel_get_orientation(struct drm_panel *panel)\n@@ -354,7 +362,7 @@ static int radxa_display_8hd_ad002_init_cmds(struct jadard *jadard)\n };\n \n static const struct jadard_panel_desc radxa_display_8hd_ad002_desc = {\n-\t.mode = {\n+\t.mode_4ln = &(const struct drm_display_mode) {\n \t\t.clock\t\t= 70000,\n \n \t\t.hdisplay\t= 800,\n@@ -586,7 +594,7 @@ static int cz101b4001_init_cmds(struct jadard *jadard)\n };\n \n static const struct jadard_panel_desc cz101b4001_desc = {\n-\t.mode = {\n+\t.mode_4ln = &(const struct drm_display_mode) {\n \t\t.clock\t\t= 70000,\n \n \t\t.hdisplay\t= 800,\n@@ -819,7 +827,7 @@ static int kingdisplay_kd101ne3_init_cmds(struct jadard *jadard)\n };\n \n static const struct jadard_panel_desc kingdisplay_kd101ne3_40ti_desc = {\n-\t.mode = {\n+\t.mode_4ln = &(const struct drm_display_mode) {\n \t\t.clock\t\t= (800 + 24 + 24 + 24) * (1280 + 30 + 4 + 8) * 60 / 1000,\n \n \t\t.hdisplay\t= 800,\n@@ -1070,7 +1078,7 @@ static int melfas_lmfbx101117480_init_cmds(struct jadard *jadard)\n };\n \n static const struct jadard_panel_desc melfas_lmfbx101117480_desc = {\n-\t.mode = {\n+\t.mode_4ln = &(const struct drm_display_mode) {\n \t\t.clock\t\t= (800 + 24 + 24 + 24) * (1280 + 30 + 4 + 8) * 60 / 1000,\n \n \t\t.hdisplay\t= 800,\n@@ -1326,7 +1334,7 @@ static int anbernic_rgds_init_cmds(struct jadard *jadard)\n };\n \n static const struct jadard_panel_desc anbernic_rgds_display_desc = {\n-\t.mode = {\n+\t.mode_4ln = &(const struct drm_display_mode) {\n \t\t.clock\t\t= (640 + 260 + 220 + 260) * (480 + 10 + 2 + 16) * 60 / 1000,\n \n \t\t.hdisplay\t= 640,\n@@ -1562,7 +1570,7 @@ static int taiguan_xti05101_01a_init_cmds(struct jadard *jadard)\n };\n \n static const struct jadard_panel_desc taiguan_xti05101_01a_desc = {\n-\t.mode = {\n+\t.mode_4ln = &(const struct drm_display_mode) {\n \t\t.clock\t\t= (800 + 24 + 24 + 24) * (1280 + 30 + 4 + 8) * 60 / 1000,\n \n \t\t.hdisplay\t= 800,\n@@ -1614,6 +1622,12 @@ static int jadard_dsi_probe(struct mipi_dsi_device *dsi)\n \n \tdsi->format = desc->format;\n \tdsi->lanes = desc->lanes;\n+\tif (!dsi->lanes) {\n+\t\tdsi->lanes = drm_of_get_data_lanes_count_remote(dsi->dev.of_node, 0, -1, 2, 4);\n+\t\tif (dsi->lanes < 0)\n+\t\t\treturn dsi->lanes;\n+\t}\n+\tdev_dbg(&dsi->dev, \"lanes: %d\\n\", dsi->lanes);\n \n \tjadard->reset = devm_gpiod_get(dev, \"reset\", GPIOD_OUT_HIGH);\n \tif (IS_ERR(jadard->reset))\n", "prefixes": [ "v2", "12/21" ] }