From: b44548@freescale.com (Chao Fu)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/3] arm:dts:vf-610:add vybrid DSPI DMA transfer support
Date: Tue, 25 Feb 2014 14:54:17 +0800 [thread overview]
Message-ID: <1393311258-14380-2-git-send-email-b44548@freescale.com> (raw)
In-Reply-To: <1393311258-14380-1-git-send-email-b44548@freescale.com>
From: Chao Fu <B44548@freescale.com>
DSPI can transfer data in DMA mode or PIO mode.
The ajudgement of using DMA method(use-dma) will be read from dtb.
And add DMA channels info of DSPI.
Signed-off-by: Chao Fu <b44548@freescale.com>
---
arch/arm/boot/dts/vf610.dtsi | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/boot/dts/vf610.dtsi b/arch/arm/boot/dts/vf610.dtsi
index e1e1e51..2fe53c1 100644
--- a/arch/arm/boot/dts/vf610.dtsi
+++ b/arch/arm/boot/dts/vf610.dtsi
@@ -148,6 +148,10 @@
clocks = <&clks VF610_CLK_DSPI0>;
clock-names = "dspi";
spi-num-chipselects = <5>;
+ use-dma;
+ dmas = <&edma0 0 12>,
+ <&edma0 0 13>;
+ dma-names = "rx", "tx";
status = "disabled";
};
--
1.8.4
next prev parent reply other threads:[~2014-02-25 6:54 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-25 6:54 [PATCH 1/3] Documentation:spi:fsl-dspi:add DSPI dma transfer support Chao Fu
2014-02-25 6:54 ` Chao Fu [this message]
2014-02-25 6:54 ` [PATCH 3/3] spi:fsl-dspi:add dspi " Chao Fu
2014-02-25 9:15 ` Mark Rutland
2014-02-25 9:08 ` [PATCH 1/3] Documentation:spi:fsl-dspi:add DSPI " Mark Rutland
2014-02-26 14:19 ` Shawn Guo
2014-02-26 15:38 ` Mark Brown
2014-02-27 7:42 ` Shawn Guo
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