From: Yuan Yao <yao.yuan-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
To: wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org,
marex-ynQEQJNshbs@public.gmane.org
Cc: LW-bxm8fMRDkQLDiMYJYoSAnRvVK+yQ3ZXh@public.gmane.org,
mark.rutland-5wv7dgnIgG8@public.gmane.org,
fugang.duan-KZfg59tc24xl57MIdRCFDg@public.gmane.org,
shawn.guo-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH v7 2/2] Documentation:add DMA support for freescale i2c driver
Date: Wed, 13 Aug 2014 17:37:56 +0800 [thread overview]
Message-ID: <1407922676-31438-3-git-send-email-yao.yuan@freescale.com> (raw)
In-Reply-To: <1407922676-31438-2-git-send-email-yao.yuan-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
Add i2c dts node properties for eDMA support, them depend on the eDMA driver.
Signed-off-by: Yuan Yao <yao.yuan-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
---
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";
+};
--
1.8.4
next prev parent reply other threads:[~2014-08-13 9:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-13 9:37 [PATCH v7 1/2] i2c: imx: add DMA support for freescale i2c driver Yuan Yao
[not found] ` <1407922676-31438-2-git-send-email-yao.yuan-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2014-08-13 9:37 ` Yuan Yao [this message]
-- strict thread matches above, loose matches on Subject: below --
2014-08-13 9:46 [PATCH v7 0/2] " Yuan Yao
2014-08-13 9:46 ` [PATCH v7 2/2] Documentation:add " Yuan Yao
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