From patchwork Tue Mar 6 21:58:19 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Kaiser X-Patchwork-Id: 10263043 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 9F27460596 for ; Tue, 6 Mar 2018 22:01:58 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4FF702923D for ; Tue, 6 Mar 2018 22:01:58 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 229992922E; Tue, 6 Mar 2018 22:01:57 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 9CC30291FC for ; Tue, 6 Mar 2018 22:01:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Owner; bh=qVAOl7u/5e4+YtmItOyRrlU5EhlDenTHwIPS91NLkOU=; b=YNB vwrYUSM7ZO25GtgFjU7Iv3pGWHmQfFnsqPOET0J4o/yppEHK7Nk5GU8XW8w+LykeNfqxoz+cT1lcR h+HjULFFVc/ARwJdnnvwbiq3XPasGHhvgx1K/nXXUa1XSKobZz+28h8ncTR+YYEp/LsEuCbKyOoHj ++f+JQfNXSe2OdCQPEWFwxc+F6w4Ok/ZAvHXIZIj5aBYaviZvGFTMZuK1yHrU04FxCUQ/mN+TRjv2 V/eJ9CmrDe+ToFLnIzBRcS58PkCVEhOE/aqhwwtWg3eeSTimNJlXOhRf499d7q3jWb/QmdHG9Fj6P 2S8G52P8+QLjqIUFPRHZK9RXHoFNfIg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.89 #1 (Red Hat Linux)) id 1etKeF-0003l4-9v; Tue, 06 Mar 2018 22:01:27 +0000 Received: from botnar.kaiser.cx ([176.28.20.183]) by bombadil.infradead.org with esmtps (Exim 4.89 #1 (Red Hat Linux)) id 1etKeB-0003iw-Fp for linux-arm-kernel@lists.infradead.org; Tue, 06 Mar 2018 22:01:25 +0000 Received: from p4fdc86c7.dip0.t-ipconnect.de ([79.220.134.199] helo=martin-debian-1.paytec.ch) by botnar.kaiser.cx with esmtpsa (TLSv1:AES128-SHA:128) (Exim 4.72) (envelope-from ) id 1etKbm-0002J1-Gs; Tue, 06 Mar 2018 22:58:54 +0100 From: Martin Kaiser To: Shawn Guo , Sascha Hauer , Fabio Estevam , Rob Herring , Mark Rutland , Russell King , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] ARM: dts: i.MX25: define SSI FIFO depth Date: Tue, 6 Mar 2018 22:58:19 +0100 Message-Id: <1520373499-13623-1-git-send-email-martin@kaiser.cx> X-Mailer: git-send-email 2.1.4 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180306_140123_793567_26E8F066 X-CRM114-Status: GOOD ( 10.02 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Martin Kaiser MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP According to the i.MX25 reference manuals, each SSI has four FIFOs. All of those FIFOs can store up to 15 entries. The fsl_ssi driver's internal default for the FIFO depth in 8. Set our non-default FIFO depth explicitly in the Device Tree. Signed-off-by: Martin Kaiser Reviewed-by: Fabio Estevam --- arch/arm/boot/dts/imx25.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/imx25.dtsi b/arch/arm/boot/dts/imx25.dtsi index 9725705..cf70df2 100644 --- a/arch/arm/boot/dts/imx25.dtsi +++ b/arch/arm/boot/dts/imx25.dtsi @@ -269,6 +269,7 @@ dmas = <&sdma 24 1 0>, <&sdma 25 1 0>; dma-names = "rx", "tx"; + fsl,fifo-depth = <15>; status = "disabled"; }; @@ -329,6 +330,7 @@ dmas = <&sdma 28 1 0>, <&sdma 29 1 0>; dma-names = "rx", "tx"; + fsl,fifo-depth = <15>; status = "disabled"; };