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Message-ID: <1592358094-23459-2-git-send-email-skomatineni@nvidia.com>
Date: Tue, 16 Jun 2020 18:41:17 -0700
From: Sowjanya Komatineni <skomatineni@...dia.com>
To: <skomatineni@...dia.com>, <thierry.reding@...il.com>,
<jonathanh@...dia.com>, <frankc@...dia.com>, <hverkuil@...all.nl>,
<sakari.ailus@....fi>, <robh+dt@...nel.org>,
<helen.koike@...labora.com>
CC: <digetx@...il.com>, <sboyd@...nel.org>,
<gregkh@...uxfoundation.org>, <linux-media@...r.kernel.org>,
<devicetree@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <linux-i2c@...r.kernel.org>
Subject: [RFC PATCH v2 01/18] dt-bindings: i2c: tegra: Document Tegra210 VI I2C clocks and power-domains
This patch documents missing clocks and power-domains of Tegra210 VI I2C.
Signed-off-by: Sowjanya Komatineni <skomatineni@...dia.com>
---
.../devicetree/bindings/i2c/nvidia,tegra20-i2c.txt | 19 +++++++++++++------
1 file changed, 13 insertions(+), 6 deletions(-)
diff --git a/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt b/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt
index 18c0de3..3f2f990 100644
--- a/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt
+++ b/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt
@@ -35,12 +35,12 @@ Required properties:
Due to above changes, Tegra114 I2C driver makes incompatible with
previous hardware driver. Hence, tegra114 I2C controller is compatible
with "nvidia,tegra114-i2c".
- nvidia,tegra210-i2c-vi: Tegra210 has one I2C controller that is part of the
- host1x domain and typically used for camera use-cases. This VI I2C
- controller is mostly compatible with the programming model of the
- regular I2C controllers with a few exceptions. The I2C registers start
- at an offset of 0xc00 (instead of 0), registers are 16 bytes apart
- (rather than 4) and the controller does not support slave mode.
+ nvidia,tegra210-i2c-vi: Tegra210 has one I2C controller that is on host1x bus
+ and is part of VE power domain and typically used for camera use-cases.
+ This VI I2C controller is mostly compatible with the programming model
+ of the regular I2C controllers with a few exceptions. The I2C registers
+ start at an offset of 0xc00 (instead of 0), registers are 16 bytes
+ apart (rather than 4) and the controller does not support slave mode.
- reg: Should contain I2C controller registers physical address and length.
- interrupts: Should contain I2C controller interrupts.
- address-cells: Address cells for I2C device address.
@@ -53,10 +53,17 @@ Required properties:
- fast-clk
Tegra114:
- div-clk
+ Tegra210:
+ - div-clk
+ - slow (only for nvidia,tegra210-i2c-vi compatible node)
- resets: Must contain an entry for each entry in reset-names.
See ../reset/reset.txt for details.
- reset-names: Must include the following entries:
- i2c
+- power-domains: Only for nvidia,tegra210-i2c-vi compatible node and must
+ include venc powergate node as vi i2c is part of VE power domain.
+ tegra210-i2c-vi:
+ - pd_venc
- dmas: Must contain an entry for each entry in clock-names.
See ../dma/dma.txt for details.
- dma-names: Must include the following entries:
--
2.7.4
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