linux-kernel - [PATCH] drm/panel: Add panel-edp: add lcd innolux,n140hca-eac

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Message-Id: <20220117112124.2358888-1-rexnie3@gmail.com>
Date:   Mon, 17 Jan 2022 19:21:24 +0800
From:   Rex Nie <rexnie3@...il.com>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Rex Nie <rexnie3@...il.com>
Subject: [PATCH] drm/panel: Add panel-edp: add lcd innolux,n140hca-eac

innolux,n140hca-eac is a eDP-based LCD panel. This panel has 1920x1080
resolution in 14-inch TFT panel.

Signed-off-by: Rex Nie <rexnie3@...il.com>
---
 .../display/panel/innolux,n140hca-eac.yaml    | 43 +++++++++++++++++++
 drivers/gpu/drm/panel/panel-edp.c             | 26 +++++++++++
 2 files changed, 69 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/panel/innolux,n140hca-eac.yaml

diff --git a/Documentation/devicetree/bindings/display/panel/innolux,n140hca-eac.yaml b/Documentation/devicetree/bindings/display/panel/innolux,n140hca-eac.yaml
new file mode 100644
index 000000000000..5493e383c97c
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/innolux,n140hca-eac.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/innolux,n140hca-eac.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Innolux N140HCA-EAC 14 inch eDP 1080p display panel
+
+maintainers:
+  - Sandeep Panda <spanda@...eaurora.org>
+  - Douglas Anderson <dianders@...omium.org>
+
+allOf:
+  - $ref: panel-common.yaml#
+
+properties:
+  compatible:
+    const: innolux,n140hca-eac
+
+  enable-gpios: true
+  power-supply: true
+  backlight: true
+  no-hpd: true
+
+required:
+  - compatible
+  - power-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    panel_edp: panel-edp {
+        compatible = "innolux,n140hca-eac";
+        enable-gpios = <&pio 96 GPIO_ACTIVE_HIGH>;
+        power-supply = <&pp3300_disp_x>;
+        backlight = <&backlight_lcd0>;
+        no-hpd;
+    };
+
+...
diff --git a/drivers/gpu/drm/panel/panel-edp.c b/drivers/gpu/drm/panel/panel-edp.c
index 176ef0c3cc1d..3682986608dc 100644
--- a/drivers/gpu/drm/panel/panel-edp.c
+++ b/drivers/gpu/drm/panel/panel-edp.c
@@ -1303,6 +1303,29 @@ static const struct panel_desc innolux_n125hce_gn1 = {
 	},
 };
 
+static const struct display_timing innolux_n140hca_eac_timing = {
+	.pixelclock = { 72600000, 76420000, 80240000 },
+	.hactive = { 1920, 1920, 1920 },
+	.hfront_porch = { 80, 80, 80 },
+	.hback_porch = { 190, 190, 190 },
+	.hsync_len = { 60, 60, 60 },
+	.vactive = { 1080, 1080, 1080 },
+	.vfront_porch = { 6, 6, 6 },
+	.vback_porch = { 38, 38, 38 },
+	.vsync_len = { 8, 8, 8 },
+	.flags = DISPLAY_FLAGS_VSYNC_LOW | DISPLAY_FLAGS_HSYNC_LOW,
+};
+
+static const struct panel_desc innolux_n140hca_eac = {
+	.timings = &innolux_n140hca_eac_timing,
+	.num_timings = 1,
+	.bpc = 6,
+	.size = {
+		.width = 309,
+		.height = 174,
+	},
+};
+
 static const struct drm_display_mode innolux_p120zdg_bf1_mode = {
 	.clock = 206016,
 	.hdisplay = 2160,
@@ -1682,6 +1705,9 @@ static const struct of_device_id platform_of_match[] = {
 	}, {
 		.compatible = "innolux,n125hce-gn1",
 		.data = &innolux_n125hce_gn1,
+	}, {
+		.compatible = "innolux,n140hca-eac",
+		.data = &innolux_n140hca_eac,
 	}, {
 		.compatible = "innolux,p120zdg-bf1",
 		.data = &innolux_p120zdg_bf1,
-- 
2.25.1