From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751934AbcGUDxe (ORCPT ); Wed, 20 Jul 2016 23:53:34 -0400 Received: from mail-pf0-f174.google.com ([209.85.192.174]:34649 "EHLO mail-pf0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751244AbcGUDxY (ORCPT ); Wed, 20 Jul 2016 23:53:24 -0400 From: John Stultz To: lkml Cc: Andy Green , Zhangfei Gao , Jingoo Han , Krzysztof Kozlowski , Maxime Ripard , Vinod Koul , Dan Williams , Mark Brown , Andy Green , John Stultz Subject: [PATCH 1/7] k3dma: Fix hisi burst clipping Date: Wed, 20 Jul 2016 20:53:03 -0700 Message-Id: <1469073189-9167-2-git-send-email-john.stultz@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1469073189-9167-1-git-send-email-john.stultz@linaro.org> References: <1469073189-9167-1-git-send-email-john.stultz@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andy Green Max burst len is a 4-bit field, but at the moment it's clipped with a 5-bit constant... reduce it to that which can be expressed Cc: Zhangfei Gao Cc: Jingoo Han Cc: Krzysztof Kozlowski Cc: Maxime Ripard Cc: Vinod Koul Cc: Dan Williams Cc: Mark Brown Cc: Andy Green Acked-by: Zhangfei Gao Signed-off-by: Andy Green [jstultz: Forward ported to mainline] Signed-off-by: John Stultz --- drivers/dma/k3dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/k3dma.c b/drivers/dma/k3dma.c index 1ba2fd7..d01a11d 100644 --- a/drivers/dma/k3dma.c +++ b/drivers/dma/k3dma.c @@ -552,7 +552,7 @@ static int k3_dma_config(struct dma_chan *chan, c->ccfg |= (val << 12) | (val << 16); if ((maxburst == 0) || (maxburst > 16)) - val = 16; + val = 15; else val = maxburst - 1; c->ccfg |= (val << 20) | (val << 24); -- 1.9.1