From: John Stultz <john.stultz@linaro.org>
To: lkml <linux-kernel@vger.kernel.org>
Cc: Andy Green <andy.green@linaro.org>,
Zhangfei Gao <zhangfei.gao@linaro.org>,
Jingoo Han <jg1.han@samsung.com>,
Krzysztof Kozlowski <k.kozlowski@samsung.com>,
Maxime Ripard <maxime.ripard@free-electrons.com>,
Vinod Koul <vinod.koul@intel.com>,
Dan Williams <dan.j.williams@intel.com>,
Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>, Jaroslav Kysela <perex@perex.cz>,
Takashi Iwai <tiwai@suse.com>, Wei Xu <xuwei5@hisilicon.com>,
Rob Herring <robh+dt@kernel.org>, Andy Green <andy@warmcat.com>
Subject: [RFC][PATCH 01/10 v2] k3dma: Fix hisi burst clipping
Date: Tue, 19 Jul 2016 16:22:37 -0700 [thread overview]
Message-ID: <1468970566-24498-2-git-send-email-john.stultz@linaro.org> (raw)
In-Reply-To: <1468970566-24498-1-git-send-email-john.stultz@linaro.org>
From: Andy Green <andy.green@linaro.org>
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 <zhangfei.gao@linaro.org>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Andy Green <andy@warmcat.com>
Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Andy Green <andy.green@linaro.org>
[jstultz: Forward ported to mainline]
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
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
next prev parent reply other threads:[~2016-07-19 23:25 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-19 23:22 [RFC][PATCH 00/10 v2] Add HDMI audio support for HiKey John Stultz
2016-07-19 23:22 ` John Stultz [this message]
2016-07-19 23:22 ` [RFC][PATCH 02/10 v2] k3dma: Fix dma err offsets John Stultz
2016-07-19 23:22 ` [RFC][PATCH 03/10 v2] k3dma: Fix "nobody cared" message seen on any error John Stultz
2016-07-19 23:22 ` [RFC][PATCH 04/10 v2] k3dma: Add cyclic mode for audio John Stultz
2016-07-19 23:22 ` [RFC][PATCH 05/10 v2] Kconfig: Allow k3dma driver to be selected for more then HISI3xx platforms John Stultz
2016-07-19 23:22 ` [RFC][PATCH 06/10 v2] ASoC: add hi6210-i2s DT bindings John Stultz
2016-07-19 23:22 ` [RFC][PATCH 07/10 v2] ASoC: hisilicon: Add hi6210 i2s audio driver John Stultz
2016-07-20 0:28 ` Mark Brown
2016-07-20 16:53 ` John Stultz
2016-07-20 17:08 ` Mark Brown
2016-07-19 23:22 ` [RFC][PATCH 08/10 v2] ASoC: add hi6210-hdmi-audio-codec DT bindings John Stultz
2016-07-19 23:22 ` [RFC][PATCH 09/10 v2] ASoC: hisilicon: Add hi6210 hdmi codec driver John Stultz
2016-07-20 0:31 ` Mark Brown
2016-07-19 23:22 ` [RFC][PATCH 10/10 v2] dts: hi6220: Add k3-dma and i2s/hdmi audio support John Stultz
2016-07-20 0:22 ` [RFC][PATCH 00/10 v2] Add HDMI audio support for HiKey Mark Brown
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