From patchwork Tue Sep 29 14:09:19 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cyrille Pitchen X-Patchwork-Id: 7286461 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 615E1BEEA4 for ; Tue, 29 Sep 2015 14:12:27 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 92B75206EF for ; Tue, 29 Sep 2015 14:12:26 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 90E1B206C7 for ; Tue, 29 Sep 2015 14:12:22 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZgvcN-0004rf-Nz; Tue, 29 Sep 2015 14:10:55 +0000 Received: from eusmtp01.atmel.com ([212.144.249.242]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZgvbF-0003Of-IW for linux-arm-kernel@lists.infradead.org; Tue, 29 Sep 2015 14:09:46 +0000 Received: from tenerife.corp.atmel.com (10.161.101.13) by eusmtp01.atmel.com (10.161.101.30) with Microsoft SMTP Server id 14.3.235.1; Tue, 29 Sep 2015 16:09:21 +0200 From: Cyrille Pitchen To: , , , Subject: [PATCH v2 1/2] ASoC: atmel-i2s: add DT bindings for I2S controller Date: Tue, 29 Sep 2015 16:09:19 +0200 Message-ID: <6a06f4e889b02ebfe42ebaa74022cd980fb66085.1443535188.git.cyrille.pitchen@atmel.com> X-Mailer: git-send-email 1.8.2.2 In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150929_070945_984393_FBDF6B1B X-CRM114-Status: GOOD ( 12.38 ) X-Spam-Score: -4.2 (----) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Cyrille Pitchen , robh+dt@kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch adds DT bindings for the new Atmel I2S controller embedded inside sama5d2x SoCs. Signed-off-by: Cyrille Pitchen --- .../devicetree/bindings/sound/atmel-i2s.txt | 43 ++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/atmel-i2s.txt diff --git a/Documentation/devicetree/bindings/sound/atmel-i2s.txt b/Documentation/devicetree/bindings/sound/atmel-i2s.txt new file mode 100644 index 000000000000..83bc6b9070bf --- /dev/null +++ b/Documentation/devicetree/bindings/sound/atmel-i2s.txt @@ -0,0 +1,43 @@ +* Atmel I2S controller + +Required properties: +- compatible: Should be "atmel,sama5d2-i2s". +- reg: Should be the physical base address of the controller and the + length of memory mapped region. +- interrupts: Should contain the interrupt for the controller. +- dmas: Should be a list of pairs of DMA controller phandle and flags. +- dma-names: Should be a list of DMA channel name among "rx", "tx" or + "rx-tx". +- clocks: Should be a list of phandles of clocks used by the controller + (1). +- clock-names: Should be a list matching the clocks phandles list: + - "pclk" (peripheral clock) Required. + - "gclk" (generated clock) Optional (1). + - "aclk" (Audio PLL clock) Optional (1). + +Optional properties: +- pinctrl-0: Should specify pin control groups used for this controller. +- princtrl-names: Should contain only one value - "default". + + +(1) : Only the peripheral clock is required. The generated clock and the Audio + PLL clock are optional and should only be set together. + +Example: + + i2s@f8050000 { + compatible = "atmel,sama5d2-i2s"; + reg = <0xf8050000 0x300>; + interrupts = <54 IRQ_TYPE_LEVEL_HIGH 7>; + dmas = <&dma0 + (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | + AT91_XDMAC_DT_PERID(31))>, + <&dma0 + (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | + AT91_XDMAC_DT_PERID(32))>; + dma-names = "tx", "rx"; + clocks = <&i2s0_clk>, <&i2s0_gclk>, <&audio_pll_pmc>; + clock-names = "pclk", "gclk", "aclk"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2s0_default>; + };