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Subject[PATCH 05/14] dmaengine: dma-jz4780: Add support for the JZ4740 SoC
Date
The JZ4740 SoC has a single DMA core starring six DMA channels.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
Documentation/devicetree/bindings/dma/jz4780-dma.txt | 1 +
drivers/dma/Kconfig | 2 +-
drivers/dma/dma-jz4780.c | 4 ++++
3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/dma/jz4780-dma.txt b/Documentation/devicetree/bindings/dma/jz4780-dma.txt
index 0fd0759053be..d7ca3f925fdf 100644
--- a/Documentation/devicetree/bindings/dma/jz4780-dma.txt
+++ b/Documentation/devicetree/bindings/dma/jz4780-dma.txt
@@ -5,6 +5,7 @@ Required properties:
- compatible: Should be one of:
* ingenic,jz4780-dma
* ingenic,jz4770-dma
+ * ingenic,jz4740-dma
- reg: Should contain the DMA channel registers location and length, followed
by the DMA controller registers location and length.
- interrupts: Should contain the interrupt specifier of the DMA controller.
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 48d25dccedb7..a935d15ec581 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -143,7 +143,7 @@ config DMA_JZ4740

config DMA_JZ4780
tristate "JZ4780 DMA support"
- depends on MACH_JZ4780 || MACH_JZ4770 || COMPILE_TEST
+ depends on MACH_INGENIC || COMPILE_TEST
select DMA_ENGINE
select DMA_VIRTUAL_CHANNELS
help
diff --git a/drivers/dma/dma-jz4780.c b/drivers/dma/dma-jz4780.c
index 7b8b2dcd119e..ccadbe61dde7 100644
--- a/drivers/dma/dma-jz4780.c
+++ b/drivers/dma/dma-jz4780.c
@@ -133,6 +133,7 @@ struct jz4780_dma_chan {
};

enum jz_version {
+ ID_JZ4740,
ID_JZ4770,
ID_JZ4780,
};
@@ -247,6 +248,7 @@ static void jz4780_dma_desc_free(struct virt_dma_desc *vdesc)
}

static const unsigned int jz4780_dma_ord_max[] = {
+ [ID_JZ4740] = 5,
[ID_JZ4770] = 6,
[ID_JZ4780] = 7,
};
@@ -801,11 +803,13 @@ static struct dma_chan *jz4780_of_dma_xlate(struct of_phandle_args *dma_spec,
}

static const unsigned int jz4780_dma_nb_channels[] = {
+ [ID_JZ4740] = 6,
[ID_JZ4770] = 6,
[ID_JZ4780] = 32,
};

static const struct of_device_id jz4780_dma_dt_match[] = {
+ { .compatible = "ingenic,jz4740-dma", .data = (void *)ID_JZ4740 },
{ .compatible = "ingenic,jz4770-dma", .data = (void *)ID_JZ4770 },
{ .compatible = "ingenic,jz4780-dma", .data = (void *)ID_JZ4780 },
{},
--
2.18.0
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