2016-12-02 10:50:26 +00:00
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From 50523fe3cfcef4a7728176b11a6e2975243ab74e Mon Sep 17 00:00:00 2001
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2016-07-07 07:22:07 +00:00
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From: Martin Sperl <kernel@martin.sperl.org>
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Date: Fri, 22 Apr 2016 17:17:22 +0000
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2016-09-10 12:54:26 +00:00
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Subject: [PATCH] Revert "bcm2835-dma: Limit cyclic transfers on lite channels
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to 32k"
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2016-07-07 07:22:07 +00:00
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This reverts commit 052c2005b6ecedc5abad86632f5781adda310aa7.
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---
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drivers/dma/bcm2835-dma.c | 8 +-------
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1 file changed, 1 insertion(+), 7 deletions(-)
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--- a/drivers/dma/bcm2835-dma.c
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+++ b/drivers/dma/bcm2835-dma.c
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@@ -144,12 +144,6 @@ struct bcm2835_desc {
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*/
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#define MAX_LITE_TRANSFER (SZ_64K - 4)
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-/*
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- * Transfers larger than 32k cause issues with the bcm2708-i2s driver,
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- * so limit transfer size to 32k as bcm2708-dmaengine did.
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- */
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-#define MAX_CYCLIC_LITE_TRANSFER SZ_32K
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-
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static inline struct bcm2835_dmadev *to_bcm2835_dma_dev(struct dma_device *d)
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{
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return container_of(d, struct bcm2835_dmadev, ddev);
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@@ -418,7 +412,7 @@ static struct dma_async_tx_descriptor *b
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d->c = c;
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d->dir = direction;
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if (c->ch >= 8) /* LITE channel */
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- max_size = MAX_CYCLIC_LITE_TRANSFER;
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+ max_size = MAX_LITE_TRANSFER;
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else
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max_size = MAX_NORMAL_TRANSFER;
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period_len = min(period_len, max_size);
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