dmaengine: ti: k3-udma: Add support for J721S2 CSI BCDMA instance

J721S2 has dedicated BCDMA instance for Camera Serial Interface RX
and TX. The BCDMA instance supports RX and TX channels but block copy
channels are not present, add support for the same.

Signed-off-by: Vaishnav Achath <vaishnav.a@ti.com>
Link: https://lore.kernel.org/r/20230505143929.28131-3-vaishnav.a@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index fc3a2a05ab7b70f33ab2c81e618a245941e1222a..16c5c333808bde31e5f977add8b1acda6093d7fc 100644 (file)
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -4308,6 +4308,15 @@ static struct udma_soc_data am62a_dmss_csi_soc_data = {
        },
 };
 
+static struct udma_soc_data j721s2_bcdma_csi_soc_data = {
+       .oes = {
+               .bcdma_tchan_data = 0x800,
+               .bcdma_tchan_ring = 0xa00,
+               .bcdma_rchan_data = 0xe00,
+               .bcdma_rchan_ring = 0x1000,
+       },
+};
+
 static struct udma_match_data am62a_bcdma_csirx_data = {
        .type = DMA_TYPE_BCDMA,
        .psil_base = 0x3100,
@@ -4346,6 +4355,18 @@ static struct udma_match_data am64_pktdma_data = {
        },
 };
 
+static struct udma_match_data j721s2_bcdma_csi_data = {
+       .type = DMA_TYPE_BCDMA,
+       .psil_base = 0x2000,
+       .enable_memcpy_support = false,
+       .burst_size = {
+               TI_SCI_RM_UDMAP_CHAN_BURST_SIZE_64_BYTES, /* Normal Channels */
+               0, /* No H Channels */
+               0, /* No UH Channels */
+       },
+       .soc_data = &j721s2_bcdma_csi_soc_data,
+};
+
 static const struct of_device_id udma_of_match[] = {
        {
                .compatible = "ti,am654-navss-main-udmap",
@@ -4373,6 +4394,10 @@ static const struct of_device_id udma_of_match[] = {
                .compatible = "ti,am62a-dmss-bcdma-csirx",
                .data = &am62a_bcdma_csirx_data,
        },
+       {
+               .compatible = "ti,j721s2-dmss-bcdma-csi",
+               .data = &j721s2_bcdma_csi_data,
+       },
        { /* Sentinel */ },
 };