From: Sricharan R <r.sricharan@ti.com>
To: r.sricharan@ti.com, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org,
dmaengine@vger.kernel.org
Cc: santosh.shilimkar@ti.com, rnayak@ti.com, nsekhar@ti.com,
tony@atomide.com, linux@arm.linux.org.uk, vinod.koul@intel.com,
dan.j.williams@intel.com, nm@ti.com
Subject: [RFC PATCH 9/9] arm: dts: dra7: Change the total dma-req numbers to crossbar channels
Date: Fri, 7 Mar 2014 17:46:16 +0530 [thread overview]
Message-ID: <1394194576-23741-10-git-send-email-r.sricharan@ti.com> (raw)
In-Reply-To: <1394194576-23741-1-git-send-email-r.sricharan@ti.com>
On DRA7 there is a crossbar router which maps the peripheral
dma request channels to the dma controller inputs. The
dma-controller can receive requests from any of the crossbar
channels. So register the total number crossbar channels instead
of the shared dma-request lines.
Signed-off-by: Sricharan R <r.sricharan@ti.com>
---
arch/arm/boot/dts/dra7.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index baa781e..f5ae8c9 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -167,7 +167,7 @@
<GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
#dma-cells = <2>;
#dma-channels = <32>;
- #dma-requests = <127>;
+ #dma-requests = <203>;
};
dmacb: crossbar@4a020000 {
--
1.7.9.5
next prev parent reply other threads:[~2014-03-07 12:16 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-07 12:16 [RFC PATCH 0/9] drivers: dma: Add support for dma-channel router Sricharan R
2014-03-07 12:16 ` [RFC PATCH 1/9] drivers: dma: omap-dma: Avoid hard-coding of the dma-request channels Sricharan R
2014-03-07 12:16 ` [RFC PATCH 2/9] drivers: dma: of-dma: Add support for dma-request line routers Sricharan R
2014-03-07 12:16 ` [RFC PATCH 3/9] drivers: dma: omap-dma: Add a seperate xlate function to get router data Sricharan R
2014-03-07 12:16 ` [RFC PATCH 4/9] drivers: omap-dma: Add crossbar line as a resource to omap_chan structure Sricharan R
2014-03-07 12:16 ` [RFC PATCH 5/9] drivers: dma: Add dma crossbar driver Sricharan R
2014-03-07 12:16 ` [RFC PATCH 6/9] arm: dts: dra: Add dma crossbar node Sricharan R
2014-03-07 12:16 ` [RFC PATCH 7/9] arm: dts: dra: Add dma-request crossbar phandle to dma-specs Sricharan R
2014-03-07 12:16 ` [RFC PATCH 8/9] arm: dra: Enable dma crossbar support on dra7xx Sricharan R
2014-03-07 12:16 ` Sricharan R [this message]
2014-03-08 19:53 ` [RFC PATCH 0/9] drivers: dma: Add support for dma-channel router Rob Herring
2014-03-10 13:58 ` Sricharan R
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