From: Luca Ceresoli <luca@lucaceresoli.net>
To: linux-media@vger.kernel.org, linux-i2c@vger.kernel.org
Cc: Luca Ceresoli <luca@lucaceresoli.net>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Wolfram Sang <wsa@the-dreams.de>,
Sakari Ailus <sakari.ailus@linux.intel.com>,
Hans Verkuil <hverkuil-cisco@xs4all.nl>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Kieran Bingham <kieran.bingham@ideasonboard.com>,
Jacopo Mondi <jacopo@jmondi.org>,
Vladimir Zapolskiy <vz@mleia.com>, Peter Rosin <peda@axentia.se>
Subject: [RFC,v2 4/6] media: dt-bindings: add DS90UB953-Q1 video serializer
Date: Tue, 23 Jul 2019 22:37:21 +0200 [thread overview]
Message-ID: <20190723203723.11730-5-luca@lucaceresoli.net> (raw)
In-Reply-To: <20190723203723.11730-1-luca@lucaceresoli.net>
Describe the Texas Instruments DS90UB953-Q1, a video serializer with remote
access to I2C and GPIOs.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
---
Changes RFCv1 -> RFCv2: none, this patch is new in RFCv2
---
.../bindings/media/i2c/ti,ds90ub953-q1.txt | 42 +++++++++++++++++++
include/dt-bindings/media/ds90ub953.h | 16 +++++++
2 files changed, 58 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/i2c/ti,ds90ub953-q1.txt
create mode 100644 include/dt-bindings/media/ds90ub953.h
diff --git a/Documentation/devicetree/bindings/media/i2c/ti,ds90ub953-q1.txt b/Documentation/devicetree/bindings/media/i2c/ti,ds90ub953-q1.txt
new file mode 100644
index 000000000000..ba24f887b607
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/ti,ds90ub953-q1.txt
@@ -0,0 +1,42 @@
+Texas Instruments DS90UB953-Q1 video serializer
+===============================================
+
+The TI DS90UB953-Q1 is a MIPI CSI-2 video serializer that forwards a MIPI
+CSI-2 input video stream over an FPD Link 3 connection to a remote
+deserializer. It also allows access to I2C and GPIO from the deserializer.
+
+The DT definitions can be found in include/dt-bindings/media/ds90ub953.h
+
+When used as a the remote counterpart of a deserializer (e.g. the
+DS90UB954-Q1), the serializer is described in the
+"deserializer/ports/port@<N>/endpoint/remote-chip" node.
+
+Required properties:
+
+ - compatible: must be "ti,ds90ub953-q1"
+
+Optional properties:
+
+ - gpio-functions: a list of 4 values defining how the 4 GPIO pins are
+ connected in hardware; possible values are:
+ - DS90_GPIO_FUNC_UNUSED (0): the GPIO is not connected
+ - DS90_GPIO_FUNC_INPUT (1): the GPIO is an input to the ds90ub953
+ - DS90_GPIO_FUNC_OUTPUT_REMOTE (2): the GPIO is an output from the
+ ds90ub953, to be driven from the remote chip (deserializer)
+
+ - ti,ds90ub953-q1-clk-inv-pol-quirk: the MIPI CSI-2 input clock lane has
+ inverted polarity
+
+
+Device node example
+-------------------
+
+&ds90ub954_fpd3_in0 {
+ remote-chip {
+ compatible = "ti,ds90ub953-q1";
+ gpio-functions = <DS90_GPIO_FUNC_OUTPUT_REMOTE
+ DS90_GPIO_FUNC_OUTPUT_REMOTE
+ DS90_GPIO_FUNC_UNUSED
+ DS90_GPIO_FUNC_UNUSED>;
+ };
+};
diff --git a/include/dt-bindings/media/ds90ub953.h b/include/dt-bindings/media/ds90ub953.h
new file mode 100644
index 000000000000..5359432968e9
--- /dev/null
+++ b/include/dt-bindings/media/ds90ub953.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/**
+ * Definitions for the Texas Instruments DS90UB953-Q1 video serializer
+ *
+ * Copyright (c) 2019 Luca Ceresoli <luca@lucaceresoli.net>
+ */
+
+#ifndef _DS90UB953_H
+#define _DS90UB953_H
+
+#define DS90_GPIO_FUNC_UNUSED 0
+#define DS90_GPIO_FUNC_INPUT 1
+#define DS90_GPIO_FUNC_OUTPUT_REMOTE 2
+#define DS90_GPIO_N_FUNCS 3
+
+#endif /* _DS90UB953_H */
--
2.17.1
next prev parent reply other threads:[~2019-07-23 20:37 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-23 20:37 [RFC,v2 0/6] TI camera serdes and I2C address translation Luca Ceresoli
2019-07-23 20:37 ` [RFC,v2 1/6] i2c: core: let adapters be notified of client attach/detach Luca Ceresoli
2019-07-23 20:37 ` [RFC,v2 2/6] i2c: add I2C Address Translator (ATR) support Luca Ceresoli
2019-09-01 14:31 ` jacopo mondi
2019-09-03 7:31 ` Luca Ceresoli
2019-09-03 7:37 ` Wolfram Sang
2019-09-04 8:09 ` Peter Rosin
2019-09-08 19:40 ` Luca Ceresoli
2019-09-10 18:46 ` Wolfram Sang
2019-09-08 20:45 ` Vladimir Zapolskiy
2019-09-09 4:56 ` Vladimir Zapolskiy
2019-09-10 17:40 ` Luca Ceresoli
2019-09-09 7:22 ` Wolfram Sang
2019-09-09 15:10 ` Vladimir Zapolskiy
2019-09-09 17:48 ` Luca Ceresoli
2019-09-10 17:16 ` Wolfram Sang
2019-09-02 20:42 ` Wolfram Sang
2019-09-03 8:48 ` Luca Ceresoli
2019-09-03 9:06 ` Wolfram Sang
2019-07-23 20:37 ` [RFC,v2 3/6] media: dt-bindings: add DS90UB954-Q1 video deserializer Luca Ceresoli
2019-08-13 15:44 ` Rob Herring
2019-08-19 22:41 ` Luca Ceresoli
2019-08-20 15:44 ` Rob Herring
2019-08-21 21:50 ` Luca Ceresoli
2019-09-02 20:48 ` Wolfram Sang
2019-09-03 9:09 ` Luca Ceresoli
2019-09-03 9:34 ` Wolfram Sang
2019-09-03 11:03 ` Luca Ceresoli
2019-09-03 14:16 ` Wolfram Sang
2019-09-10 9:43 ` Sakari Ailus
2019-09-10 15:02 ` Luca Ceresoli
2019-07-23 20:37 ` Luca Ceresoli [this message]
2019-07-23 20:37 ` [RFC,v2 5/6] media: ds90ub954: new driver for TI " Luca Ceresoli
2019-07-23 20:37 ` [RFC,v2 6/6] media: ds90ub953: new driver for TI DS90UB953-Q1 video serializer Luca Ceresoli
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