linux-kernel - [PATCH] drm/panel-simple: Add Vivax TPC-9150 panel v5

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Date:   Sat,  2 Oct 2021 22:30:17 +0200
From:   Nikola Pavlica <pavlica.nikola@...il.com>
To:     dri-devel@...ts.freedesktop.org
Cc:     thierry.reding@...il.com, sam@...nborg.org, airlied@...ux.ie,
        daniel@...ll.ch, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...glegroups.com, linux-sunxi@...ts.linux.dev,
        linux-kernel@...r.kernel.org,
        Nikola Pavlica <pavlica.nikola@...il.com>
Subject: [PATCH] drm/panel-simple: Add Vivax TPC-9150 panel v5

The model and make of the LCD panel of the Vivax TPC-9150 is unknown,
hence the panel settings that were retrieved with a FEX dump are named
after the device NOT the actual panel.

The LCD in question is a 50 pin MISO TFT LCD panel of the resolution
1024x600 used by the aforementioned device.

Version 2, as Thierry kindly suggested that I fix the order in which the
panel was ordered compared to others.

Version 3, filling in the required info suggested by Sam. Plus some
factual issues that I've corrected myself (tested working)

Version 4, rearranged the display parameters and fix invalid bit format
issue. (Thanks Sam)

Version 5, referred to FEX file instead of manual debugging for
information.

NOTE: Seperate dt-binding patch has been sent to THAT mailing list. So
that's why they're NOT included here. Advise freely if that's not how
you're supposed to do it.

Thanks,
Nikola

Signed-off-by: Nikola Pavlica <pavlica.nikola@...il.com>
---
 drivers/gpu/drm/panel/panel-simple.c | 29 ++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 9b6c4e6c3..680fd3f72 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -4363,6 +4363,32 @@ static const struct panel_desc urt_umsh_8596md_parallel = {
 	.bus_format = MEDIA_BUS_FMT_RGB666_1X18,
 };

+static const struct drm_display_mode vivax_tpc9150_panel_mode = {
+	.clock = 60000,
+	.hdisplay = 1024,
+	.hsync_start = 1024 + 160,
+	.hsync_end = 1024 + 160 + 100,
+	.htotal = 1024 + 160 + 100 + 60,
+	.vdisplay = 600,
+	.vsync_start = 600 + 12,
+	.vsync_end = 600 + 12 + 10,
+	.vtotal = 600 + 12 + 10 + 13,
+};
+
+static const struct panel_desc vivax_tpc9150_panel = {
+	.modes = &vivax_tpc9150_panel_mode,
+	.num_modes = 1,
+	.bpc = 6,
+	.size = {
+		.width = 200,
+		.height = 115,
+	},
+	.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
+	.bus_flags = DRM_BUS_FLAG_DE_HIGH,
+	.connector_type = DRM_MODE_CONNECTOR_LVDS,
+};
+
+
 static const struct drm_display_mode vl050_8048nt_c01_mode = {
 	.clock = 33333,
 	.hdisplay = 800,
@@ -4891,6 +4917,9 @@ static const struct of_device_id platform_of_match[] = {
 	}, {
 		.compatible = "urt,umsh-8596md-20t",
 		.data = &urt_umsh_8596md_parallel,
+	}, {
+		.compatible = "vivax,tpc9150-panel",
+		.data = &vivax_tpc9150_panel,
 	}, {
 		.compatible = "vxt,vl050-8048nt-c01",
 		.data = &vl050_8048nt_c01,
--
2.33.0