2b1c6b21b5
As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Also adds support for Raspberry Pi Compute Module 3 (untested). Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
53 lines
1.5 KiB
Diff
53 lines
1.5 KiB
Diff
From 45a5aa455ea243c3daf0d1bdbfdb83787ae95249 Mon Sep 17 00:00:00 2001
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From: Martin Sperl <kernel@martin.sperl.org>
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Date: Wed, 16 Mar 2016 12:24:58 -0700
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Subject: [PATCH] dmaengine: bcm2835: move cyclic member from bcm2835_chan into
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bcm2835_desc
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In preparation to consolidating code we move the cyclic member
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into the bcm_2835_desc structure.
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Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
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Reviewed-by: Eric Anholt <eric@anholt.net>
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Signed-off-by: Eric Anholt <eric@anholt.net>
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Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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---
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drivers/dma/bcm2835-dma.c | 6 +++---
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1 file changed, 3 insertions(+), 3 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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@@ -73,7 +73,6 @@ struct bcm2835_chan {
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struct list_head node;
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struct dma_slave_config cfg;
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- bool cyclic;
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unsigned int dreq;
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int ch;
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@@ -93,6 +92,8 @@ struct bcm2835_desc {
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unsigned int frames;
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size_t size;
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+
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+ bool cyclic;
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};
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#define BCM2835_DMA_CS 0x00
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@@ -377,8 +378,6 @@ static void bcm2835_dma_issue_pending(st
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struct bcm2835_chan *c = to_bcm2835_dma_chan(chan);
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unsigned long flags;
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- c->cyclic = true; /* Nothing else is implemented */
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-
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spin_lock_irqsave(&c->vc.lock, flags);
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if (vchan_issue_pending(&c->vc) && !c->desc)
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bcm2835_dma_start_desc(c);
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@@ -432,6 +431,7 @@ 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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d->frames = buf_len / period_len;
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+ d->cyclic = true;
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d->cb_list = kcalloc(d->frames, sizeof(*d->cb_list), GFP_KERNEL);
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if (!d->cb_list) {
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