From: Tali Perry <tali.perry1@gmail.com>
To: tali.perry1@gmail.com, avifishman70@gmail.com,
tmaimon77@gmail.com, venture@google.com, yuenn@google.com,
brendanhiggins@google.com, robh+dt@kernel.org,
mark.rutland@arm.com, davem@davemloft.net,
mchehab+samsung@kernel.org, gregkh@linuxfoundation.org,
akpm@linux-foundation.org, arnd@arndb.de, wsa@the-dreams.de,
andriy.shevchenko@linux.intel.com, pierre-yves.mordret@st.com,
cedric.madianga@gmail.com, baolin.wang@spreadtrum.com,
jarkko.nikula@linux.intel.com, hdegoede@redhat.com,
rmk+kernel@armlinux.org.uk, ard.biesheuvel@linaro.org,
thor.thayer@linux.intel.com, geert@linux-m68k.org,
heikki.krogerus@linux.intel.com, tglx@linutronix.de
Cc: linux-i2c@vger.kernel.org, openbmc@lists.ozlabs.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v4 1/2] dt-bindings: i2c: npcm7xx: add binding for i2c controller
Date: Sun, 19 Aug 2018 23:30:43 +0300 [thread overview]
Message-ID: <20180819203044.73286-2-tali.perry1@gmail.com> (raw)
In-Reply-To: <20180819203044.73286-1-tali.perry1@gmail.com>
Nuvoton NPCM7XX I2C Controller
NPCM7xx includes 16 I2C controllers. This driver operates the controller.
This module also includes a slave mode, which will be submitted later on.
---
v4 -> v3:
- typo on cover letter.
v3 -> v2:
- fix dt binding: compatible name: omit "bus"
v2 -> v1:
- run check patch in strict mode.
- use linux crc.
- define regs in constant offset without base.
- remove debug prints.
- no declarations for local functions.
v1: initial version
Signed-off-by: Tali Perry <tali.perry1@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
.../devicetree/bindings/i2c/i2c-npcm7xx.txt | 29 ++++++++++++++++++++++
1 file changed, 29 insertions(+)
create mode 100644 Documentation/devicetree/bindings/i2c/i2c-npcm7xx.txt
diff --git a/Documentation/devicetree/bindings/i2c/i2c-npcm7xx.txt b/Documentation/devicetree/bindings/i2c/i2c-npcm7xx.txt
new file mode 100644
index 000000000000..0ecae950748b
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-npcm7xx.txt
@@ -0,0 +1,29 @@
+Nuvoton NPCM7XX I2C bus
+
+The NPCM750x includes sixteen I2C bus controllers. All Controllers support
+both master and slave mode. Each controller has two 16 byte HW FIFO for TX and
+RX.
+
+Required properties:
+- compatible : must be "nuvoton,npcm750-i2c"
+- reg : Offset and length of the register set for the device.
+- interrupts : Contain the I2C interrupt with flags for falling edge.
+- clocks : phandle of I2C reference clock.
+
+Optional:
+- bus-frequency : Contain the I2C bus frequency,
+ the default I2C bus frequency is 100000.
+- pinctrl-0 : must be <&smbX_pins>, X is module number
+ (on NPCM7XX it's 0 to 15)
+- pinctrl-names : should be set to "default"
+Example:
+
+ i2c0: i2c@80000 {
+ compatible = "nuvoton,npcm750-i2c";
+ reg = <0x80000 0x1000>;
+ clocks = <&clk NPCM7XX_CLK_APB2>;
+ bus-frequency = <100000>;
+ interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&smb0_pins>;
+ };
--
2.14.1
next prev parent reply other threads:[~2018-08-19 20:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-19 20:30 [PATCH v4 0/2] i2c: npcm7xx: new driver for I2C controller Tali Perry
2018-08-19 20:30 ` Tali Perry [this message]
2018-08-19 20:30 ` [PATCH v4 2/2] i2c: npcm7xx: add i2c controller master mode only Tali Perry
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