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authorÁlvaro Fernández Rojas <noltari@gmail.com>2022-05-16 23:40:32 +0200
committerÁlvaro Fernández Rojas <noltari@gmail.com>2022-05-17 15:11:22 +0200
commit20ea6adbf199097c4f5f591ffee088340630dae4 (patch)
treed6719d95e136611a1c25bbf7789652d6d402779d /target/linux/bcm27xx/patches-5.15/950-0331-bcm2835-dma-Avoid-losing-CS-flags-after-interrupt.patch
parentbca05bd072180dc38ef740b37ded9572a6db1981 (diff)
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bcm27xx: add support for linux v5.15
Build system: x86_64 Build-tested: bcm2708, bcm2709, bcm2710, bcm2711 Run-tested: bcm2708/RPiB+, bcm2709/RPi3B, bcm2710/RPi3B, bcm2711/RPi4B Signed-off-by: Marty Jones <mj8263788@gmail.com> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/bcm27xx/patches-5.15/950-0331-bcm2835-dma-Avoid-losing-CS-flags-after-interrupt.patch')
-rw-r--r--target/linux/bcm27xx/patches-5.15/950-0331-bcm2835-dma-Avoid-losing-CS-flags-after-interrupt.patch21
1 files changed, 21 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.15/950-0331-bcm2835-dma-Avoid-losing-CS-flags-after-interrupt.patch b/target/linux/bcm27xx/patches-5.15/950-0331-bcm2835-dma-Avoid-losing-CS-flags-after-interrupt.patch
new file mode 100644
index 0000000000..b014677284
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.15/950-0331-bcm2835-dma-Avoid-losing-CS-flags-after-interrupt.patch
@@ -0,0 +1,21 @@
+From fa6d833fecd73b56de962f8538a2cd62bfca59ae Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Wed, 6 Jan 2021 18:16:10 +0000
+Subject: [PATCH] bcm2835-dma: Avoid losing CS flags after interrupt
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/dma/bcm2835-dma.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/dma/bcm2835-dma.c
++++ b/drivers/dma/bcm2835-dma.c
+@@ -704,7 +704,7 @@ static irqreturn_t bcm2835_dma_callback(
+ * if this IRQ handler is threaded.) If the channel is finished, it
+ * will remain idle despite the ACTIVE flag being set.
+ */
+- writel(BCM2835_DMA_INT | BCM2835_DMA_ACTIVE,
++ writel(BCM2835_DMA_INT | BCM2835_DMA_ACTIVE | BCM2835_DMA_CS_FLAGS(c->dreq),
+ c->chan_base + BCM2835_DMA_CS);
+
+ d = c->desc;