linux-kernel - [PATCH v5 1/4] dt-bindings: display: bridge: add sam9x75-lvds binding

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Date: Fri, 5 Apr 2024 10:05:33 +0530
From: Dharma Balasubiramani <dharma.b@...rochip.com>
To: "andrzej . hajda @ intel . com" <andrzej.hajda@...el.com>, "neil .
 armstrong @ linaro . org" <neil.armstrong@...aro.org>, "rfoss @ kernel . org"
	<rfoss@...nel.org>, "Laurent . pinchart @ ideasonboard . com"
	<Laurent.pinchart@...asonboard.com>, "jonas @ kwiboo . se" <jonas@...boo.se>,
	"jernej . skrabec @ gmail . com" <jernej.skrabec@...il.com>, "maarten .
 lankhorst @ linux . intel . com" <maarten.lankhorst@...ux.intel.com>,
	"mripard @ kernel . org" <mripard@...nel.org>, "tzimmermann @ suse . de"
	<tzimmermann@...e.de>, "airlied @ gmail . com" <airlied@...il.com>, "daniel @
 ffwll . ch" <daniel@...ll.ch>, "robh+dt @ kernel . org" <robh+dt@...nel.org>,
	"krzysztof . kozlowski+dt @ linaro . org"
	<krzysztof.kozlowski+dt@...aro.org>, "conor+dt @ kernel . org"
	<conor+dt@...nel.org>, "linux @ armlinux . org . uk" <linux@...linux.org.uk>,
	"Nicolas . Ferre @ microchip . com" <Nicolas.Ferre@...rochip.com>, "alexandre
 . belloni @ bootlin . com" <alexandre.belloni@...tlin.com>, "claudiu . beznea
 @ tuxon . dev" <claudiu.beznea@...on.dev>, "Manikandan . M @ microchip . com"
	<Manikandan.M@...rochip.com>, "Dharma . B @ microchip . com"
	<Dharma.B@...rochip.com>, "arnd @ arndb . de" <arnd@...db.de>, "geert+renesas
 @ glider . be" <geert+renesas@...der.be>, "Jason @ zx2c4 . com"
	<Jason@...c4.com>, "mpe @ ellerman . id . au" <mpe@...erman.id.au>, "gerg @
 linux-m68k . org" <gerg@...ux-m68k.org>, "rdunlap @ infradead . org"
	<rdunlap@...radead.org>, "vbabka @ suse . cz" <vbabka@...e.cz>, "dri-devel @
 lists . freedesktop . org" <dri-devel@...ts.freedesktop.org>, "devicetree @
 vger . kernel . org" <devicetree@...r.kernel.org>, "linux-kernel @ vger .
 kernel . org" <linux-kernel@...r.kernel.org>, "linux-arm-kernel @ lists .
 infradead . org" <linux-arm-kernel@...ts.infradead.org>, "Hari . PrasathGE @
 microchip . com" <Hari.PrasathGE@...rochip.com>, "akpm @ linux-foundation .
 org" <akpm@...ux-foundation.org>, "deller @ gmx . de" <deller@....de>
CC: Dharma Balasubiramani <dharma.b@...rochip.com>, Rob Herring
	<robh@...nel.org>
Subject: [PATCH v5 1/4] dt-bindings: display: bridge: add sam9x75-lvds binding

Add the 'sam9x75-lvds' compatible binding, which describes the Low Voltage
Differential Signaling (LVDS) Controller found on some Microchip's sam9x7
series System-on-Chip (SoC) devices. This binding will be used to define
the properties and configuration for the LVDS Controller in DT.

Signed-off-by: Dharma Balasubiramani <dharma.b@...rochip.com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
Changelog
v4 -> v5
- No changes.
v3 -> v4
- Rephrase the commit subject.
v2 -> v3
- No changes.
v1 -> v2
- Remove '|' in description, as there is no formatting to preserve.
- Remove 'gclk' from clock-names as there is only one clock(pclk).
- Remove the unused headers and include only used ones.
- Change the compatible name specific to SoC (sam9x75) instead of entire series.
- Change file name to match the compatible name.
---
 .../bridge/microchip,sam9x75-lvds.yaml        | 55 +++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/microchip,sam9x75-lvds.yaml

diff --git a/Documentation/devicetree/bindings/display/bridge/microchip,sam9x75-lvds.yaml b/Documentation/devicetree/bindings/display/bridge/microchip,sam9x75-lvds.yaml
new file mode 100644
index 000000000000..862ef441ac9f
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/microchip,sam9x75-lvds.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/microchip,sam9x75-lvds.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip SAM9X75 LVDS Controller
+
+maintainers:
+  - Dharma Balasubiramani <dharma.b@...rochip.com>
+
+description:
+  The Low Voltage Differential Signaling Controller (LVDSC) manages data
+  format conversion from the LCD Controller internal DPI bus to OpenLDI
+  LVDS output signals. LVDSC functions include bit mapping, balanced mode
+  management, and serializer.
+
+properties:
+  compatible:
+    const: microchip,sam9x75-lvds
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Peripheral Bus Clock
+
+  clock-names:
+    items:
+      - const: pclk
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/clock/at91.h>
+    lvds-controller@...60000 {
+      compatible = "microchip,sam9x75-lvds";
+      reg = <0xf8060000 0x100>;
+      interrupts = <56 IRQ_TYPE_LEVEL_HIGH 0>;
+      clocks = <&pmc PMC_TYPE_PERIPHERAL 56>;
+      clock-names = "pclk";
+    };
-- 
2.25.1