linux-kernel - [PATCH 2/2] drm: atmel-hlcdc: add LCD controller layer definition for sama7d65

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Message-ID: <20251215090639.346288-2-manikandan.m@microchip.com>
Date: Mon, 15 Dec 2025 14:36:39 +0530
From: Manikandan Muralidharan <manikandan.m@...rochip.com>
To: <lee@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
	<conor+dt@...nel.org>, <nicolas.ferre@...rochip.com>,
	<alexandre.belloni@...tlin.com>, <claudiu.beznea@...on.dev>,
	<manikandan.m@...rochip.com>, <dharma.b@...rochip.com>,
	<maarten.lankhorst@...ux.intel.com>, <mripard@...nel.org>,
	<tzimmermann@...e.de>, <airlied@...il.com>, <simona@...ll.ch>,
	<devicetree@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>
CC: Ryan Wanner <Ryan.Wanner@...rochip.com>
Subject: [PATCH 2/2] drm: atmel-hlcdc: add LCD controller layer definition for sama7d65

From: Ryan Wanner <Ryan.Wanner@...rochip.com>

Add the LCD controller layer definition and atmel_hlcdc_of_match
entry for sama7d65.

Signed-off-by: Ryan Wanner <Ryan.Wanner@...rochip.com>
Signed-off-by: Manikandan Muralidharan <manikandan.m@...rochip.com>
---
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 81 ++++++++++++++++++++
 drivers/mfd/atmel-hlcdc.c                    |  1 +
 2 files changed, 82 insertions(+)

diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
index dd70894c8f38..9c18c6841e2a 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
@@ -566,6 +566,83 @@ static const struct atmel_hlcdc_dc_desc atmel_xlcdc_dc_sam9x75 = {
 	.ops = &atmel_xlcdc_ops,
 };
 
+static const struct atmel_hlcdc_layer_desc atmel_xlcdc_sama7d65_layers[] = {
+	{
+		.name = "base",
+		.formats = &atmel_hlcdc_plane_rgb_formats,
+		.regs_offset = 0x60,
+		.id = 0,
+		.type = ATMEL_HLCDC_BASE_LAYER,
+		.cfgs_offset = 0x1c,
+		.layout = {
+			.xstride = { 2 },
+			.default_color = 3,
+			.general_config = 4,
+			.disc_pos = 5,
+			.disc_size = 6,
+		},
+		.clut_offset = 0x700,
+	},
+	{
+		.name = "overlay1",
+		.formats = &atmel_hlcdc_plane_rgb_formats,
+		.regs_offset = 0x160,
+		.id = 1,
+		.type = ATMEL_HLCDC_OVERLAY_LAYER,
+		.cfgs_offset = 0x1c,
+		.layout = {
+			.pos = 2,
+			.size = 3,
+			.xstride = { 4 },
+			.pstride = { 5 },
+			.default_color = 6,
+			.chroma_key = 7,
+			.chroma_key_mask = 8,
+			.general_config = 9,
+		},
+		.clut_offset = 0xb00,
+	},
+	{
+		.name = "high-end-overlay",
+		.formats = &atmel_hlcdc_plane_rgb_and_yuv_formats,
+		.regs_offset = 0x360,
+		.id = 2,
+		.type = ATMEL_HLCDC_OVERLAY_LAYER,
+		.cfgs_offset = 0x30,
+		.layout = {
+			.pos = 2,
+			.size = 3,
+			.memsize = 4,
+			.xstride = { 5, 7 },
+			.pstride = { 6, 8 },
+			.default_color = 9,
+			.chroma_key = 10,
+			.chroma_key_mask = 11,
+			.general_config = 12,
+			.csc = 16,
+			.scaler_config = 23,
+			.vxs_config = 30,
+			.hxs_config = 31,
+		},
+		.clut_offset = 0x1300,
+	},
+};
+
+static const struct atmel_hlcdc_dc_desc atmel_xlcdc_dc_sama7d65 = {
+	.min_width = 0,
+	.min_height = 0,
+	.max_width = 2048,
+	.max_height = 2048,
+	.max_spw = 0x3ff,
+	.max_vpw = 0x3ff,
+	.max_hpw = 0x3ff,
+	.fixed_clksrc = false,
+	.is_xlcdc = true,
+	.nlayers = ARRAY_SIZE(atmel_xlcdc_sama7d65_layers),
+	.layers = atmel_xlcdc_sama7d65_layers,
+	.ops = &atmel_xlcdc_ops,
+};
+
 static const struct of_device_id atmel_hlcdc_of_match[] = {
 	{
 		.compatible = "atmel,at91sam9n12-hlcdc",
@@ -595,6 +672,10 @@ static const struct of_device_id atmel_hlcdc_of_match[] = {
 		.compatible = "microchip,sam9x75-xlcdc",
 		.data = &atmel_xlcdc_dc_sam9x75,
 	},
+	{
+		.compatible = "microchip,sama7d65-xlcdc",
+		.data = &atmel_xlcdc_dc_sama7d65,
+	},
 	{ /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, atmel_hlcdc_of_match);
diff --git a/drivers/mfd/atmel-hlcdc.c b/drivers/mfd/atmel-hlcdc.c
index 4c4e35d404f3..c3f3d39bf584 100644
--- a/drivers/mfd/atmel-hlcdc.c
+++ b/drivers/mfd/atmel-hlcdc.c
@@ -140,6 +140,7 @@ static const struct of_device_id atmel_hlcdc_match[] = {
 	{ .compatible = "atmel,sama5d4-hlcdc" },
 	{ .compatible = "microchip,sam9x60-hlcdc" },
 	{ .compatible = "microchip,sam9x75-xlcdc" },
+	{ .compatible = "microchip,sama7d65-xlcdc" },
 	{ /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, atmel_hlcdc_match);
-- 
2.25.1