linux-kernel - [PATCH 1/3] dt-bindings: display: rockchip: document VOP gamma LUT address

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Message-Id: <20190618213406.7667-2-ezequiel@collabora.com>
Date:   Tue, 18 Jun 2019 18:34:04 -0300
From:   Ezequiel Garcia <ezequiel@...labora.com>
To:     dri-devel@...ts.freedesktop.org
Cc:     linux-rockchip@...ts.infradead.org,
        Heiko Stübner <heiko@...ech.de>,
        Sandy Huang <hjc@...k-chips.com>, kernel@...labora.com,
        Sean Paul <seanpaul@...omium.org>,
        Boris Brezillon <boris.brezillon@...labora.com>,
        Douglas Anderson <dianders@...omium.org>,
        Jacopo Mondi <jacopo@...ndi.org>,
        Ilia Mirkin <imirkin@...m.mit.edu>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Ezequiel Garcia <ezequiel@...labora.com>
Subject: [PATCH 1/3] dt-bindings: display: rockchip: document VOP gamma LUT address

Add the register specifier description for an
optional gamma LUT address.

Signed-off-by: Ezequiel Garcia <ezequiel@...labora.com>
---
 .../bindings/display/rockchip/rockchip-vop.txt         | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt b/Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt
index 4f58c5a2d195..97ad78cc7e03 100644
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt
@@ -20,6 +20,13 @@ Required properties:
 		"rockchip,rk3228-vop";
 		"rockchip,rk3328-vop";
 
+- reg: Must contain one entry corresponding to the base address and length
+	of the register space. Can optionally contain a second entry
+	corresponding to the CRTC gamma LUT address.
+
+- reg-names: "base" for the base register space. If present, the CRTC
+	gamma LUT name should be "lut".
+
 - interrupts: should contain a list of all VOP IP block interrupts in the
 		 order: VSYNC, LCD_SYSTEM. The interrupt specifier
 		 format depends on the interrupt controller used.
@@ -48,7 +55,8 @@ Example:
 SoC specific DT entry:
 	vopb: vopb@...30000 {
 		compatible = "rockchip,rk3288-vop";
-		reg = <0xff930000 0x19c>;
+		reg = <0x0 0xff930000 0x0 0x19c>, <0x0 0xff931000 0x0 0x1000>;
+		reg-names = "base", "lut";
 		interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&cru ACLK_VOP0>, <&cru DCLK_VOP0>, <&cru HCLK_VOP0>;
 		clock-names = "aclk_vop", "dclk_vop", "hclk_vop";
-- 
2.20.1