linux-kernel - [PATCH v2 2/2] drm/panel: panel-simple: Add BOE EV121WXM-N10-1850 panel support

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Message-Id: <20230508083826.1016206-3-victor.liu@nxp.com>
Date:   Mon,  8 May 2023 16:38:26 +0800
From:   Liu Ying <victor.liu@....com>
To:     dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     neil.armstrong@...aro.org, sam@...nborg.org, airlied@...il.com,
        daniel@...ll.ch, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        thierry.reding@...il.com, linux-imx@....com,
        krzysztof.kozlowski@...aro.org
Subject: [PATCH v2 2/2] drm/panel: panel-simple: Add BOE EV121WXM-N10-1850 panel support

Add BOE EV121WXM-N10-1850 12.1" WXGA (1280x800) TFT LCD panel support.
The panel has a LVDS display interface.

The panel's product specification can be found at:
http://www.onetech.com.tw/files/EV121WXM-N10-1850ProductSpecification_20180801.pdf

Signed-off-by: Liu Ying <victor.liu@....com>
---
v1->v2:
* Use struct display_timing to tell minimum and maximum pixel clock rates.
* Set bus_flags to DRM_BUS_FLAG_DE_HIGH in struct panel_desc.

 drivers/gpu/drm/panel/panel-simple.c | 34 ++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 065f378bba9d..b1590a7e2cda 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1211,6 +1211,37 @@ static const struct panel_desc bananapi_s070wv20_ct16 = {
 	},
 };
 
+static const struct display_timing boe_ev121wxm_n10_1850_timing = {
+	.pixelclock = { 69922000, 71000000, 72293000 },
+	.hactive = { 1280, 1280, 1280 },
+	.hfront_porch = { 48, 48, 48 },
+	.hback_porch = { 80, 80, 80 },
+	.hsync_len = { 32, 32, 32 },
+	.vactive = { 800, 800, 800 },
+	.vfront_porch = { 3, 3, 3 },
+	.vback_porch = { 14, 14, 14 },
+	.vsync_len = { 6, 6, 6 },
+};
+
+static const struct panel_desc boe_ev121wxm_n10_1850 = {
+	.timings = &boe_ev121wxm_n10_1850_timing,
+	.num_timings = 1,
+	.bpc = 8,
+	.size = {
+		.width = 261,
+		.height = 163,
+	},
+	.delay = {
+		.prepare = 9,
+		.enable = 300,
+		.unprepare = 300,
+		.disable = 560,
+	},
+	.bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
+	.bus_flags = DRM_BUS_FLAG_DE_HIGH,
+	.connector_type = DRM_MODE_CONNECTOR_LVDS,
+};
+
 static const struct drm_display_mode boe_hv070wsa_mode = {
 	.clock = 42105,
 	.hdisplay = 1024,
@@ -3984,6 +4015,9 @@ static const struct of_device_id platform_of_match[] = {
 	}, {
 		.compatible = "bananapi,s070wv20-ct16",
 		.data = &bananapi_s070wv20_ct16,
+	}, {
+		.compatible = "boe,ev121wxm-n10-1850",
+		.data = &boe_ev121wxm_n10_1850,
 	}, {
 		.compatible = "boe,hv070wsa-100",
 		.data = &boe_hv070wsa
-- 
2.37.1