[PATCH 2/2] dma: jz4780: Add support for the JZ4760(B)

From: Paul Cercueil
Date: Wed Jan 20 2021 - 07:07:13 EST


Add support for the JZ4760 and JZ4760B SoCs.

Both SoCs have only 5 DMA channels per chip. The JZ4760B introduced the
DCKES/DCKEC registers.

Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
---
drivers/dma/dma-jz4780.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/drivers/dma/dma-jz4780.c b/drivers/dma/dma-jz4780.c
index 612d353648cf..ebee94dbd630 100644
--- a/drivers/dma/dma-jz4780.c
+++ b/drivers/dma/dma-jz4780.c
@@ -1004,6 +1004,18 @@ static const struct jz4780_dma_soc_data jz4725b_dma_soc_data = {
JZ_SOC_DATA_BREAK_LINKS,
};

+static const struct jz4780_dma_soc_data jz4760_dma_soc_data = {
+ .nb_channels = 5,
+ .transfer_ord_max = 6,
+ .flags = JZ_SOC_DATA_PER_CHAN_PM | JZ_SOC_DATA_NO_DCKES_DCKEC,
+};
+
+static const struct jz4780_dma_soc_data jz4760b_dma_soc_data = {
+ .nb_channels = 5,
+ .transfer_ord_max = 6,
+ .flags = JZ_SOC_DATA_PER_CHAN_PM,
+};
+
static const struct jz4780_dma_soc_data jz4770_dma_soc_data = {
.nb_channels = 6,
.transfer_ord_max = 6,
@@ -1031,6 +1043,8 @@ static const struct jz4780_dma_soc_data x1830_dma_soc_data = {
static const struct of_device_id jz4780_dma_dt_match[] = {
{ .compatible = "ingenic,jz4740-dma", .data = &jz4740_dma_soc_data },
{ .compatible = "ingenic,jz4725b-dma", .data = &jz4725b_dma_soc_data },
+ { .compatible = "ingenic,jz4760-dma", .data = &jz4760_dma_soc_data },
+ { .compatible = "ingenic,jz4760b-dma", .data = &jz4760b_dma_soc_data },
{ .compatible = "ingenic,jz4770-dma", .data = &jz4770_dma_soc_data },
{ .compatible = "ingenic,jz4780-dma", .data = &jz4780_dma_soc_data },
{ .compatible = "ingenic,x1000-dma", .data = &x1000_dma_soc_data },
--
2.29.2