From: Yuan Yao <yao.yuan@freescale.com>
To: wsa@the-dreams.de, marex@denx.de
Cc: mark.rutland@arm.com, linux-kernel@vger.kernel.org,
linux-i2c@vger.kernel.org, fugang.duan@freescale.com,
shawn.guo@linaro.org, linux-arm-kernel@lists.infradead.org,
LW@KARO-electronics.de
Subject: [PATCH v10 2/3] Documentation:add DMA support for freescale i2c driver
Date: Mon, 17 Nov 2014 18:40:35 +0800 [thread overview]
Message-ID: <1416220836-7666-3-git-send-email-yao.yuan@freescale.com> (raw)
In-Reply-To: <1416220836-7666-1-git-send-email-yao.yuan@freescale.com>
Add i2c dts node properties for eDMA support, them depend on the eDMA driver.
Signed-off-by: Yuan Yao <yao.yuan@freescale.com>
---
Documentation/devicetree/bindings/i2c/i2c-imx.txt | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/Documentation/devicetree/bindings/i2c/i2c-imx.txt b/Documentation/devicetree/bindings/i2c/i2c-imx.txt
index 4a8513e..52d37fd 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-imx.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-imx.txt
@@ -11,6 +11,8 @@ Required properties:
Optional properties:
- clock-frequency : Constains desired I2C/HS-I2C bus clock frequency in Hz.
The absence of the propoerty indicates the default frequency 100 kHz.
+- dmas: A list of two dma specifiers, one for each entry in dma-names.
+- dma-names: should contain "tx" and "rx".
Examples:
@@ -26,3 +28,12 @@ i2c@70038000 { /* HS-I2C on i.MX51 */
interrupts = <64>;
clock-frequency = <400000>;
};
+
+i2c0: i2c@40066000 { /* i2c0 on vf610 */
+ compatible = "fsl,vf610-i2c";
+ reg = <0x40066000 0x1000>;
+ interrupts =<0 71 0x04>;
+ dmas = <&edma0 0 50>,
+ <&edma0 0 51>;
+ dma-names = "rx","tx";
+};
--
2.1.0.27.g96db324
next prev parent reply other threads:[~2014-11-17 10:40 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-17 10:40 [PATCH v10 0/3] i2c: imx: add DMA support for freescale i2c driver Yuan Yao
2014-11-17 10:40 ` [PATCH v10 1/3] i2c: imx: Sort include headers alphabetically Yuan Yao
2014-11-17 10:40 ` Yuan Yao [this message]
2014-11-17 10:40 ` [PATCH v10 3/3] i2c: imx: add DMA support for freescale i2c driver Yuan Yao
[not found] ` <1416220836-7666-4-git-send-email-yao.yuan-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2014-11-17 18:24 ` Wolfram Sang
2014-11-18 6:56 ` Yao Yuan
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