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From: Peter Ujfalusi <peter.ujfalusi@ti.com>
To: <nsekhar@ti.com>, <joelf@ti.com>
Cc: <linux@arm.linux.org.uk>, <vinod.koul@intel.com>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <linux-omap@vger.kernel.org>,
	<devicetree@vger.kernel.org>, <linux-doc@vger.kernel.org>,
	<tony@atomide.com>, <bcousson@baylibre.com>
Subject: [PATCH 2/4] dt/bindings: ti,edma: Remove redundant properties from documentation
Date: Tue, 13 May 2014 10:43:46 +0300	[thread overview]
Message-ID: <1399967028-24757-3-git-send-email-peter.ujfalusi@ti.com> (raw)
In-Reply-To: <1399967028-24757-1-git-send-email-peter.ujfalusi@ti.com>

>From CCCFG register of eDMA3 we can get all the needed information for the
driver about the IP:
Number of channels: NUM_DMACH
Number of regions: NUM_REGN
Number of slots (PaRAM sets): NUM_PAENTRY
Number of TC/EQ: NUM_EVQUE

The ti,edma-regions; ti,edma-slots and dma-channels in DT are
redundant since the very same information can be obtained from the HW.
The mentioned properties can be removed from the binding document.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
---
 Documentation/devicetree/bindings/dma/ti-edma.txt | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/dma/ti-edma.txt b/Documentation/devicetree/bindings/dma/ti-edma.txt
index 9fbbdb783a72..cf8d0a2d5b33 100644
--- a/Documentation/devicetree/bindings/dma/ti-edma.txt
+++ b/Documentation/devicetree/bindings/dma/ti-edma.txt
@@ -2,11 +2,8 @@ TI EDMA
 
 Required properties:
 - compatible : "ti,edma3"
-- ti,edma-regions: Number of regions
-- ti,edma-slots: Number of slots
 - #dma-cells: Should be set to <1>
               Clients should use a single channel number per DMA request.
-- dma-channels: Specify total DMA channels per CC
 - reg: Memory map for accessing module
 - interrupt-parent: Interrupt controller the interrupt is routed through
 - interrupts: Exactly 3 interrupts need to be specified in the order:
@@ -26,9 +23,6 @@ edma: edma@49000000 {
 	compatible = "ti,edma3";
 	ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2";
 	#dma-cells = <1>;
-	dma-channels = <64>;
-	ti,edma-regions = <4>;
-	ti,edma-slots = <256>;
 	ti,edma-xbar-event-map = <1 12
 				  2 13>;
 };
-- 
1.9.3


  parent reply	other threads:[~2014-05-13  7:44 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-13  7:43 [PATCH 0/4] ARM/DT: edma: Get IP configuration from hardware Peter Ujfalusi
2014-05-13  7:43 ` [PATCH 1/4] ARM: edma: Get IP information from HW when booting with DT Peter Ujfalusi
2014-05-13  7:43 ` Peter Ujfalusi [this message]
2014-05-13  7:43 ` [PATCH 3/4] ARM: dts: am33xx: Remove obsolete properties from edma node Peter Ujfalusi
2014-05-13  7:43 ` [PATCH 4/4] ARM: dts: am4372: " Peter Ujfalusi
2014-05-13  8:33 ` [PATCH 0/4] ARM/DT: edma: Get IP configuration from hardware Sekhar Nori
2014-05-13 10:26   ` Peter Ujfalusi

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