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authorÁlvaro Fernández Rojas <noltari@gmail.com>2017-02-07 22:30:59 +0100
committerÁlvaro Fernández Rojas <noltari@gmail.com>2017-02-07 23:00:21 +0100
commitd9d090e52082635a24aeaefdc6bfe61ab97f38bb (patch)
tree6e725a11b5c44ee1a7ce95a0b2bcba4cae1e6f5c /target/linux/brcm2708/patches-4.4/0404-dmaengine-bcm2835-Fix-cyclic-DMA-period-splitting.patch
parentada91d8a245690b3bc8d2a62b391d2725aea5c8e (diff)
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brcm2708: remove linux 4.4 support
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0404-dmaengine-bcm2835-Fix-cyclic-DMA-period-splitting.patch')
-rw-r--r--target/linux/brcm2708/patches-4.4/0404-dmaengine-bcm2835-Fix-cyclic-DMA-period-splitting.patch38
1 files changed, 0 insertions, 38 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0404-dmaengine-bcm2835-Fix-cyclic-DMA-period-splitting.patch b/target/linux/brcm2708/patches-4.4/0404-dmaengine-bcm2835-Fix-cyclic-DMA-period-splitting.patch
deleted file mode 100644
index 2b6bd99ae8..0000000000
--- a/target/linux/brcm2708/patches-4.4/0404-dmaengine-bcm2835-Fix-cyclic-DMA-period-splitting.patch
+++ /dev/null
@@ -1,38 +0,0 @@
-From 9c9db58d0b33e3fd7e67a3fc9910184e6f4d2f95 Mon Sep 17 00:00:00 2001
-From: Matthias Reichl <hias@horus.com>
-Date: Tue, 7 Jun 2016 19:37:10 +0200
-Subject: [PATCH] dmaengine: bcm2835: Fix cyclic DMA period splitting
-
-The code responsible for splitting periods into chunks that
-can be handled by the DMA controller missed to update total_len,
-the number of bytes processed in the current period, when there
-are more chunks to follow.
-
-Therefore total_len was stuck at 0 and the code didn't work at all.
-This resulted in a wrong control block layout and audio issues because
-the cyclic DMA callback wasn't executing on period boundaries.
-
-Fix this by adding the missing total_len update.
-
-Signed-off-by: Matthias Reichl <hias@horus.com>
-Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
-Tested-by: Clive Messer <clive.messer@digitaldreamtime.co.uk>
----
- drivers/dma/bcm2835-dma.c | 5 ++++-
- 1 file changed, 4 insertions(+), 1 deletion(-)
-
---- a/drivers/dma/bcm2835-dma.c
-+++ b/drivers/dma/bcm2835-dma.c
-@@ -252,8 +252,11 @@ static void bcm2835_dma_create_cb_set_le
- */
-
- /* have we filled in period_length yet? */
-- if (*total_len + control_block->length < period_len)
-+ if (*total_len + control_block->length < period_len) {
-+ /* update number of bytes in this period so far */
-+ *total_len += control_block->length;
- return;
-+ }
-
- /* calculate the length that remains to reach period_length */
- control_block->length = period_len - *total_len;