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Mon, 11 Feb 2013 17:38:07 +0900 (KST) Received: from epcpsbgm1.samsung.com ( [172.20.52.126]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id 63.F0.03918.EEDA8115; Mon, 11 Feb 2013 17:38:07 +0900 (KST) X-AuditID: cbfee61a-b7f7d6d000000f4e-02-5118adeeab58 Received: from epmmp1.local.host ( [203.254.227.16]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id 92.F0.03918.EEDA8115; Mon, 11 Feb 2013 17:38:06 +0900 (KST) Received: from padma-linuxpc.sisodomain.com ([107.108.83.35]) by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0MI1001YDRZ0HC30@mmp1.samsung.com> for linux-arm-kernel@lists.infradead.org; Mon, 11 Feb 2013 17:38:06 +0900 (KST) From: Padmavathi Venna To: linux-samsung-soc@vger.kernel.org, devicetree-discuss@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, padma.v@samsung.com, padma.kvr@gmail.com Subject: [PATCH V4 4/5] ARM: dts: pl330: Add #dma-cells for generic dma binding support Date: Mon, 11 Feb 2013 14:08:24 +0530 Message-id: <1360571905-15285-5-git-send-email-padma.v@samsung.com> X-Mailer: git-send-email 1.7.4.4 In-reply-to: <1360571905-15285-1-git-send-email-padma.v@samsung.com> References: <1360571905-15285-1-git-send-email-padma.v@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrILMWRmVeSWpSXmKPExsWyRsSkTvf9WolAg5/vmCw2Pb7G6sDosXlJ fQBjFJdNSmpOZllqkb5dAlfGzWMTmAtWSFes3XmDtYFxlmgXIyeHhICJxO5t31kgbDGJC/fW s3UxcnEICSxllDi6uJ8RpujqxMtgRUICixglls8pgCjayiRxZt80pi5GDg42AR2JlrMuIHER gTmMEs3bZzCCOMwCE5gkJi5azQ5SJCwQKfFkiQDIIBYBVYnDn9czgdi8As4S3181QS1TkDg2 9SsriM0p4CKx8tBNVojFzhLHzh5hg6i5zSbRf4MPYo6AxLfJh1hAxksIyEpsOsAMUSIpcXDF DZYJjMILGBlWMYqmFiQXFCel5xrqFSfmFpfmpesl5+duYgQG4Ol/z6R2MK5ssDjEKMDBqMTD GxAqESjEmlhWXJl7iFGCg1lJhPf4IfFAId6UxMqq1KL8+KLSnNTiQ4zJQMsnMkuJJucDoyOv JN7Q2MTc1NjU0sjIzNSUNGElcV7GU08ChATSE0tSs1NTC1KLYLYwcXBKNTDmxZ6b0lnzL0ji Vbf4rqLayn0KCybLHHP49fqo6Lm5mwV0I79wTZ67WuOT5uWaM0s+7Jor5r6GtXVLmO37dHEd hYnJn+OnaNSr3FkW8fEtb1DFPNFDew7feViY3Hqgn11tUv+PTuMVMus+z7qR5fj758RejrNl HJO0i+ZHLz/VPWlXQnf59aPflViKMxINtZiLihMBxG15LIQCAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrIIsWRmVeSWpSXmKPExsVy+t9jAd13ayUCDfZ3GVtsenyN1YHRY/OS +gDGqAZGm4zUxJTUIoXUvOT8lMy8dFsl7+B453hTMwNDXUNLC3MlhbzE3FRbJRefAF23zByg qUoKZYk5pUChgMTiYiV9O0wTQkPcdC1gGiN0fUOC4HqMDNBAwhrGjJvHJjAXrJCuWLvzBmsD 4yzRLkZODgkBE4mrEy+zQNhiEhfurWcDsYUEFjFKLJ9T0MXIBWRvZZI4s28aUxcjBwebgI5E y1kXkLiIwBxGiebtMxhBHGaBCUwSExetZgcpEhaIlHiyRABkEIuAqsThz+uZQGxeAWeJ76+a GCGWKUgcm/qVFcTmFHCRWHnoJivEYmeJY2ePsE1g5F3AyLCKUTS1ILmgOCk911CvODG3uDQv XS85P3cTIzjAn0ntYFzZYHGIUYCDUYmHNyBUIlCINbGsuDL3EKMEB7OSCO/xQ+KBQrwpiZVV qUX58UWlOanFhxiTga6ayCwlmpwPjL68knhDYxNzU2NTSxMLEzNL0oSVxHkZTz0JEBJITyxJ zU5NLUgtgtnCxMEp1cCYHXLc7STbzYmWoUfVU30NFSVWcHTO5alq9Cw5/G9D5oV7mbFpOhm3 kvdN+hD0YcLmbTusnugWqfxkfexbsbG3OOyI++onJpdVfXpMXf/c2xZ9VXvijMMG78yXqS1a G/R8LpvaHQ/rhTO4WsWnni1+ulJsR/hBFc8ZjSde7DnFu/QW062FmRMLlFiKMxINtZiLihMB A2JU8bQCAAA= DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130211_033809_270151_926BF918 X-CRM114-Status: GOOD ( 10.92 ) X-Spam-Score: -7.6 (-------) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-7.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/, high trust [203.254.224.34 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: jassisinghbrar@gmail.com, kgene.kim@samsung.com, arnd@arndb.de, boojin.kim@samsung.com, sbkim73@samsung.com, broonie@opensource.wolfsonmicro.com, grant.likely@secretlab.ca, vinod.koul@intel.com, thomas.abraham@linaro.org, jon-hunter@ti.com X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org This patch adds #dma-cells property to PL330 DMA controller nodes for supporting generic dma dt bindings on samsung exynos5250 platform. Signed-off-by: Padmavathi Venna Acked-by: Arnd Bergmann --- .../devicetree/bindings/dma/arm-pl330.txt | 21 +++++++++++++++---- arch/arm/boot/dts/exynos5250.dtsi | 12 +++++++++++ 2 files changed, 28 insertions(+), 5 deletions(-) diff --git a/Documentation/devicetree/bindings/dma/arm-pl330.txt b/Documentation/devicetree/bindings/dma/arm-pl330.txt index 36e27d5..2675658 100644 --- a/Documentation/devicetree/bindings/dma/arm-pl330.txt +++ b/Documentation/devicetree/bindings/dma/arm-pl330.txt @@ -10,7 +10,11 @@ Required properties: - interrupts: interrupt number to the cpu. Optional properties: -- dma-coherent : Present if dma operations are coherent + - dma-coherent : Present if dma operations are coherent + - #dma-cells: must be <1>. used to represent the number of integer + cells in the dmas property of client device. + - dma-channels: contains the total number of DMA channels supported by the DMAC + - dma-requests: contains the total number of DMA requests supported by the DMAC Example: @@ -18,16 +22,23 @@ Example: compatible = "arm,pl330", "arm,primecell"; reg = <0x12680000 0x1000>; interrupts = <99>; + #dma-cells = <1>; + #dma-channels = <8>; + #dma-requests = <32>; }; Client drivers (device nodes requiring dma transfers from dev-to-mem or -mem-to-dev) should specify the DMA channel numbers using a two-value pair +mem-to-dev) should specify the DMA channel numbers and dma channel names as shown below. [property name] = <[phandle of the dma controller] [dma request id]>; + [property name] = <[dma channel name]> where 'dma request id' is the dma request number which is connected - to the client controller. The 'property name' is recommended to be - of the form -dma-channel. + to the client controller. The 'property name' 'dmas' and 'dma-names' + as required by the generic dma device tree binding helpers. The dma + names correspond 1:1 with the dma request ids in the dmas property. - Example: tx-dma-channel = <&pdma0 12>; + Example: dmas = <&pdma0 12 + &pdma1 11>; + dma-names = "tx", "rx"; diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi index f50b4e8..b1ac73e 100644 --- a/arch/arm/boot/dts/exynos5250.dtsi +++ b/arch/arm/boot/dts/exynos5250.dtsi @@ -312,24 +312,36 @@ compatible = "arm,pl330", "arm,primecell"; reg = <0x121A0000 0x1000>; interrupts = <0 34 0>; + #dma-cells = <1>; + #dma-channels = <8>; + #dma-requests = <32>; }; pdma1: pdma@121B0000 { compatible = "arm,pl330", "arm,primecell"; reg = <0x121B0000 0x1000>; interrupts = <0 35 0>; + #dma-cells = <1>; + #dma-channels = <8>; + #dma-requests = <32>; }; mdma0: mdma@10800000 { compatible = "arm,pl330", "arm,primecell"; reg = <0x10800000 0x1000>; interrupts = <0 33 0>; + #dma-cells = <1>; + #dma-channels = <8>; + #dma-requests = <1>; }; mdma1: mdma@11C10000 { compatible = "arm,pl330", "arm,primecell"; reg = <0x11C10000 0x1000>; interrupts = <0 124 0>; + #dma-cells = <1>; + #dma-channels = <8>; + #dma-requests = <1>; }; };