dmaengine: jz4780: Add support for the MDMA and BDMA in the JZ4760(B)

The JZ4760 and JZ4760B SoCs have two regular DMA controllers with 6
channels each. They also have an extra DMA controller named MDMA
with only 2 channels, that only supports memcpy operations, and one
named BDMA with only 3 channels, that is mostly used for transfers
between memories and the BCH controller.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20211206174259.68133-5-paul@crapouillou.net
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/dma-jz4780.c b/drivers/dma/dma-jz4780.c
index d63753a..bcd21d7 100644 (file)
--- a/drivers/dma/dma-jz4780.c
+++ b/drivers/dma/dma-jz4780.c
@@ -1019,12 +1019,36 @@ static const struct jz4780_dma_soc_data jz4760_dma_soc_data = {
        .flags = JZ_SOC_DATA_PER_CHAN_PM | JZ_SOC_DATA_NO_DCKES_DCKEC,
 };
 
+static const struct jz4780_dma_soc_data jz4760_mdma_soc_data = {
+       .nb_channels = 2,
+       .transfer_ord_max = 6,
+       .flags = JZ_SOC_DATA_PER_CHAN_PM | JZ_SOC_DATA_NO_DCKES_DCKEC,
+};
+
+static const struct jz4780_dma_soc_data jz4760_bdma_soc_data = {
+       .nb_channels = 3,
+       .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 jz4760b_mdma_soc_data = {
+       .nb_channels = 2,
+       .transfer_ord_max = 6,
+       .flags = JZ_SOC_DATA_PER_CHAN_PM,
+};
+
+static const struct jz4780_dma_soc_data jz4760b_bdma_soc_data = {
+       .nb_channels = 3,
+       .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,
@@ -1053,7 +1077,11 @@ 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,jz4760-mdma", .data = &jz4760_mdma_soc_data },
+       { .compatible = "ingenic,jz4760-bdma", .data = &jz4760_bdma_soc_data },
        { .compatible = "ingenic,jz4760b-dma", .data = &jz4760b_dma_soc_data },
+       { .compatible = "ingenic,jz4760b-mdma", .data = &jz4760b_mdma_soc_data },
+       { .compatible = "ingenic,jz4760b-bdma", .data = &jz4760b_bdma_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 },