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From:   Michael Drake <michael.drake@codethink.co.uk>
To:     Andrzej Hajda <a.hajda@samsung.com>,
        Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
        dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Michael Drake <michael.drake@codethink.co.uk>
Cc:     David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
        Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        linux-kernel@lists.codethink.co.uk,
        Patrick Glaser <pglaser@tesla.com>, Nate Case <ncase@tesla.com>
Subject: [PATCH v1 03/11] dt-bindings: display/bridge: Add config property for ti948
Date:   Tue, 11 Jun 2019 15:04:04 +0100
Message-Id: <20190611140412.32151-4-michael.drake@codethink.co.uk>
In-Reply-To: <20190611140412.32151-1-michael.drake@codethink.co.uk>
References: <20190611140412.32151-1-michael.drake@codethink.co.uk>
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The config property can be used to provide an array of
register addresses and values to be written to configure
the device for the board.

Signed-off-by: Michael Drake <michael.drake@codethink.co.uk>
Cc: Patrick Glaser <pglaser@tesla.com>
Cc: Nate Case <ncase@tesla.com>
---
 .../bindings/display/bridge/ti,ds90ub948.txt  | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/bridge/ti,ds90ub948.txt b/Documentation/devicetree/bindings/display/bridge/ti,ds90ub948.txt
index f9e86cb22900..1e7033b0f3b7 100644
--- a/Documentation/devicetree/bindings/display/bridge/ti,ds90ub948.txt
+++ b/Documentation/devicetree/bindings/display/bridge/ti,ds90ub948.txt
@@ -12,6 +12,8 @@ Required properties:
 Optional properties:
 
 - regulators: List of regulator name strings to enable for operation of device.
+- config: List of <register address>,<value> pairs to be set to configure
+  device on powerup.  The register addresses and values are 8bit.
 
 Example
 -------
@@ -21,4 +23,23 @@ ti948: ds90ub948@0 {
 
 	regulators: "vcc",
 	            "vcc_disp";
+	config:
+	        /* set error count to max */
+	        <0x41>, <0x1f>,
+	        /* sets output mode, no change noticed */
+	        <0x49>, <0xe0>,
+	        /* speed up I2C, 0xE is around 480KHz */
+	        <0x26>, <0x0e>,
+	        /* speed up I2C, 0xE is around 480KHz */
+	        <0x27>, <0x0e>,
+	        /* sets GPIO0 as an input */
+	        <0x1D>, <0x13>,
+	        /* set GPIO2 high, backlight PWM (set to 0x50 for normal use) */
+	        <0x1E>, <0x50>,
+	        /* sets GPIO3 as an output with remote control for touch XRES */
+	        <0x1F>, <0x05>,
+	        /* set GPIO5 high, backlight enable on new display */
+	        <0x20>, <0x09>,
+	        /* set GPIO7 and GPIO8 high to enable touch power and prox sense */
+	        <0x21>, <0x91>;
 };
-- 
2.20.1