From patchwork Mon Nov 4 16:15:20 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Denis Carikli X-Patchwork-Id: 288203 Return-Path: X-Original-To: incoming-imx@patchwork.ozlabs.org Delivered-To: patchwork-incoming-imx@bilbo.ozlabs.org Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:770:15f::2]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id F23342C00F9 for ; Tue, 5 Nov 2013 03:16:57 +1100 (EST) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VdMp5-0003z2-PD; Mon, 04 Nov 2013 16:16:15 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1VdMoz-0007aJ-5G; Mon, 04 Nov 2013 16:16:09 +0000 Received: from smtp5-g21.free.fr ([2a01:e0c:1:1599::14]) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1VdMos-0007Yc-4L for linux-arm-kernel@lists.infradead.org; Mon, 04 Nov 2013 16:16:04 +0000 Received: from denis-N73SV.local.eukrea.com (unknown [88.170.243.169]) by smtp5-g21.free.fr (Postfix) with ESMTP id 33EC7D48245; Mon, 4 Nov 2013 17:15:34 +0100 (CET) From: Denis Carikli To: Shawn Guo Subject: [PATCHv4][ 2/6] dma: ipu: Add devicetree support. Date: Mon, 4 Nov 2013 17:15:20 +0100 Message-Id: <1383581724-14817-2-git-send-email-denis@eukrea.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1383581724-14817-1-git-send-email-denis@eukrea.com> References: <1383581724-14817-1-git-send-email-denis@eukrea.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20131104_111602_865362_532E12F5 X-CRM114-Status: GOOD ( 14.69 ) X-Spam-Score: -1.2 (-) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-1.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.7 SPF_SOFTFAIL SPF: sender does not match SPF record (softfail) -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: Mark Rutland , devicetree@vger.kernel.org, linux-fbdev@vger.kernel.org, =?UTF-8?q?Eric=20B=C3=A9nard?= , Pawel Moll , Stephen Warren , Vinod Koul , Ian Campbell , Rob Herring , Denis Carikli , Tomi Valkeinen , Sascha Hauer , Grant Likely , Dan Williams , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org List-Id: linux-imx-kernel.lists.patchwork.ozlabs.org Cc: Rob Herring Cc: Pawel Moll Cc: Mark Rutland Cc: Stephen Warren Cc: Ian Campbell Cc: devicetree@vger.kernel.org Cc: Vinod Koul Cc: Dan Williams Cc: Sascha Hauer Cc: linux-arm-kernel@lists.infradead.org Cc: Eric Bénard Signed-off-by: Denis Carikli --- ChangeLog v3->v4: - Synced the documentation with the code. ChangeLog v2->v3: - The DMA channels are not exposed anymore in order to look more like the IPUv3 bindings. --- .../devicetree/bindings/dma/fsl-imx-ipu.txt | 20 ++++++++++++++++++++ drivers/dma/ipu/ipu_idmac.c | 8 ++++++++ 2 files changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/fsl-imx-ipu.txt diff --git a/Documentation/devicetree/bindings/dma/fsl-imx-ipu.txt b/Documentation/devicetree/bindings/dma/fsl-imx-ipu.txt new file mode 100644 index 0000000..2f3c976 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/fsl-imx-ipu.txt @@ -0,0 +1,20 @@ +* Freescale Image Processing Unit (IPU) support for i.MX3x. + +This driver supports the imx31 and imx35 devices. + +Required properties: +- compatible : Should be "fsl,imx31-ipu". +- reg : Should contain IPU registers location and length. +- interrupts : First item should be IPU interrupt, second one is optional and + should contain IPU Error interrupt. + +Example: + + ipu: ipu@53fc0000 { + compatible = "fsl,imx31-ipu"; + reg = < 0x53fc0000 0x5f + 0x53fc0088 0x2b >; + interrupts = <42 41>; + clocks = <&clks 55>; + clock-names = ""; + }; diff --git a/drivers/dma/ipu/ipu_idmac.c b/drivers/dma/ipu/ipu_idmac.c index cb9c0bc..d853ee1 100644 --- a/drivers/dma/ipu/ipu_idmac.c +++ b/drivers/dma/ipu/ipu_idmac.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include "../dmaengine.h" @@ -1768,6 +1769,12 @@ static int ipu_remove(struct platform_device *pdev) return 0; } +static const struct of_device_id ipu_dma_of_dev_id[] = { + { .compatible = "fsl,imx31-ipu", }, + { /* Sentinel */ } +}; +MODULE_DEVICE_TABLE(of, ipu_dma_of_dev_id); + /* * We need two MEM resources - with IPU-common and Image Converter registers, * including PF_CONF and IDMAC_* registers, and two IRQs - function and error @@ -1775,6 +1782,7 @@ static int ipu_remove(struct platform_device *pdev) static struct platform_driver ipu_platform_driver = { .driver = { .name = "ipu-core", + .of_match_table = of_match_ptr(ipu_dma_of_dev_id), .owner = THIS_MODULE, }, .remove = ipu_remove,