diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.10/950-0283-bcm2835-dma-Add-NO_WAIT_RESP-flag.patch')
-rw-r--r-- | target/linux/bcm27xx/patches-5.10/950-0283-bcm2835-dma-Add-NO_WAIT_RESP-flag.patch | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0283-bcm2835-dma-Add-NO_WAIT_RESP-flag.patch b/target/linux/bcm27xx/patches-5.10/950-0283-bcm2835-dma-Add-NO_WAIT_RESP-flag.patch deleted file mode 100644 index 43a7bd90c8..0000000000 --- a/target/linux/bcm27xx/patches-5.10/950-0283-bcm2835-dma-Add-NO_WAIT_RESP-flag.patch +++ /dev/null @@ -1,54 +0,0 @@ -From 33528413733fa956913cfe139dcd3ddd550839e4 Mon Sep 17 00:00:00 2001 -From: Phil Elwell <phil@raspberrypi.com> -Date: Wed, 1 Jul 2020 20:28:27 +0100 -Subject: [PATCH] bcm2835-dma: Add NO_WAIT_RESP flag - -Use bit 27 of the dreq value (the second cell of the DT DMA descriptor) -to request that the WAIT_RESP bit is not set. - -Signed-off-by: Phil Elwell <phil@raspberrypi.com> ---- - drivers/dma/bcm2835-dma.c | 11 ++++++++--- - 1 file changed, 8 insertions(+), 3 deletions(-) - ---- a/drivers/dma/bcm2835-dma.c -+++ b/drivers/dma/bcm2835-dma.c -@@ -165,6 +165,11 @@ struct bcm2835_desc { - #define BCM2835_DMA_WAIT(x) ((x & 31) << 21) /* add DMA-wait cycles */ - #define BCM2835_DMA_NO_WIDE_BURSTS BIT(26) /* no 2 beat write bursts */ - -+/* A fake bit to request that the driver doesn't set the WAIT_RESP bit. */ -+#define BCM2835_DMA_NO_WAIT_RESP BIT(27) -+#define WAIT_RESP(x) ((x & BCM2835_DMA_NO_WAIT_RESP) ? \ -+ 0 : BCM2835_DMA_WAIT_RESP) -+ - /* debug register bits */ - #define BCM2835_DMA_DEBUG_LAST_NOT_SET_ERR BIT(0) - #define BCM2835_DMA_DEBUG_FIFO_ERR BIT(1) -@@ -843,7 +848,7 @@ static struct dma_async_tx_descriptor *b - struct bcm2835_chan *c = to_bcm2835_dma_chan(chan); - struct bcm2835_desc *d; - u32 info = BCM2835_DMA_D_INC | BCM2835_DMA_S_INC; -- u32 extra = BCM2835_DMA_INT_EN | BCM2835_DMA_WAIT_RESP; -+ u32 extra = BCM2835_DMA_INT_EN | WAIT_RESP(c->dreq); - size_t max_len = bcm2835_dma_max_frame_length(c); - size_t frames; - -@@ -873,7 +878,7 @@ static struct dma_async_tx_descriptor *b - struct bcm2835_chan *c = to_bcm2835_dma_chan(chan); - struct bcm2835_desc *d; - dma_addr_t src = 0, dst = 0; -- u32 info = BCM2835_DMA_WAIT_RESP; -+ u32 info = WAIT_RESP(c->dreq); - u32 extra = BCM2835_DMA_INT_EN; - size_t frames; - -@@ -935,7 +940,7 @@ static struct dma_async_tx_descriptor *b - struct bcm2835_chan *c = to_bcm2835_dma_chan(chan); - struct bcm2835_desc *d; - dma_addr_t src, dst; -- u32 info = BCM2835_DMA_WAIT_RESP; -+ u32 info = WAIT_RESP(c->dreq); - u32 extra = 0; - size_t max_len = bcm2835_dma_max_frame_length(c); - size_t frames; |