From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:33516 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933305AbeGFFvq (ORCPT ); Fri, 6 Jul 2018 01:51:46 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Sean Nyekjaer , Fabio Estevam , Shawn Guo Subject: [PATCH 4.14 43/61] ARM: dts: imx6q: Use correct SDMA script for SPI5 core Date: Fri, 6 Jul 2018 07:47:07 +0200 Message-Id: <20180706054713.987368381@linuxfoundation.org> In-Reply-To: <20180706054712.332416244@linuxfoundation.org> References: <20180706054712.332416244@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org List-ID: 4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sean Nyekjaer commit df07101e1c4a29e820df02f9989a066988b160e6 upstream. According to the reference manual the shp_2_mcu / mcu_2_shp scripts must be used for devices connected through the SPBA. This fixes an issue we saw with DMA transfers. Sometimes the SPI controller RX FIFO was not empty after a DMA transfer and the driver got stuck in the next PIO transfer when it read one word more than expected. commit dd4b487b32a35 ("ARM: dts: imx6: Use correct SDMA script for SPI cores") is fixing the same issue but only for SPI1 - 4. Fixes: 677940258dd8e ("ARM: dts: imx6q: enable dma for ecspi5") Signed-off-by: Sean Nyekjaer Reviewed-by: Fabio Estevam Signed-off-by: Shawn Guo Signed-off-by: Greg Kroah-Hartman --- arch/arm/boot/dts/imx6q.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/arm/boot/dts/imx6q.dtsi +++ b/arch/arm/boot/dts/imx6q.dtsi @@ -96,7 +96,7 @@ clocks = <&clks IMX6Q_CLK_ECSPI5>, <&clks IMX6Q_CLK_ECSPI5>; clock-names = "ipg", "per"; - dmas = <&sdma 11 7 1>, <&sdma 12 7 2>; + dmas = <&sdma 11 8 1>, <&sdma 12 8 2>; dma-names = "rx", "tx"; status = "disabled"; };