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-rw-r--r--target/linux/brcm2708/patches-4.9/950-0019-dmaengine-bcm2835-Load-driver-early-and-support-lega.patch8
-rw-r--r--target/linux/brcm2708/patches-4.9/950-0187-dmaengine-bcm2835-Fix-cyclic-DMA-period-splitting.patch39
2 files changed, 4 insertions, 43 deletions
diff --git a/target/linux/brcm2708/patches-4.9/950-0019-dmaengine-bcm2835-Load-driver-early-and-support-lega.patch b/target/linux/brcm2708/patches-4.9/950-0019-dmaengine-bcm2835-Load-driver-early-and-support-lega.patch
index e800713ab8..c402fe283b 100644
--- a/target/linux/brcm2708/patches-4.9/950-0019-dmaengine-bcm2835-Load-driver-early-and-support-lega.patch
+++ b/target/linux/brcm2708/patches-4.9/950-0019-dmaengine-bcm2835-Load-driver-early-and-support-lega.patch
@@ -46,7 +46,7 @@ Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
struct bcm2835_dmadev {
struct dma_device ddev;
-@@ -922,6 +924,9 @@ static int bcm2835_dma_probe(struct plat
+@@ -925,6 +927,9 @@ static int bcm2835_dma_probe(struct plat
base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(base))
return PTR_ERR(base);
@@ -56,7 +56,7 @@ Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
od->base = base;
-@@ -959,6 +964,9 @@ static int bcm2835_dma_probe(struct plat
+@@ -962,6 +967,9 @@ static int bcm2835_dma_probe(struct plat
goto err_no_dma;
}
@@ -66,7 +66,7 @@ Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
/* get irqs for each channel that we support */
for (i = 0; i <= BCM2835_DMA_MAX_DMA_CHAN_SUPPORTED; i++) {
/* skip masked out channels */
-@@ -1033,6 +1041,7 @@ static int bcm2835_dma_remove(struct pla
+@@ -1036,6 +1044,7 @@ static int bcm2835_dma_remove(struct pla
{
struct bcm2835_dmadev *od = platform_get_drvdata(pdev);
@@ -74,7 +74,7 @@ Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
dma_async_device_unregister(&od->ddev);
bcm2835_dma_free(od);
-@@ -1048,7 +1057,22 @@ static struct platform_driver bcm2835_dm
+@@ -1051,7 +1060,22 @@ static struct platform_driver bcm2835_dm
},
};
diff --git a/target/linux/brcm2708/patches-4.9/950-0187-dmaengine-bcm2835-Fix-cyclic-DMA-period-splitting.patch b/target/linux/brcm2708/patches-4.9/950-0187-dmaengine-bcm2835-Fix-cyclic-DMA-period-splitting.patch
deleted file mode 100644
index fa0d998a2d..0000000000
--- a/target/linux/brcm2708/patches-4.9/950-0187-dmaengine-bcm2835-Fix-cyclic-DMA-period-splitting.patch
+++ /dev/null
@@ -1,39 +0,0 @@
-From 9fd7a158ec098ab05b8d3ec2c2973b3dc7e498f3 Mon Sep 17 00:00:00 2001
-From: Matthias Reichl <hias@horus.com>
-Date: Mon, 20 Feb 2017 20:01:16 +0100
-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>
-Reviewed-by: Eric Anholt <eric@anholt.net>
----
- 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
-@@ -253,8 +253,11 @@ 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;