dmaengine: tegra: Add Tegra264 support

Add compatible and chip data to support GPCDMA in Tegra264, which has
differences in register layout and address bits compared to previous
versions.

Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://patch.msgid.link/20260331102303.33181-10-akhilrajeev@nvidia.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/tegra186-gpc-dma.c b/drivers/dma/tegra186-gpc-dma.c
index 939eb5462d0a8e963122a1df95826bd2e9841f9e..c364c278a8b0686363f48f97b9ad3d0d33a51421 100644 (file)
--- a/drivers/dma/tegra186-gpc-dma.c
+++ b/drivers/dma/tegra186-gpc-dma.c
@@ -1319,6 +1319,23 @@ static const struct tegra_dma_channel_regs tegra186_reg_offsets = {
        .fixed_pattern = 0x34,
 };
 
+static const struct tegra_dma_channel_regs tegra264_reg_offsets = {
+       .csr = 0x0,
+       .status = 0x4,
+       .csre = 0x8,
+       .src = 0xc,
+       .dst = 0x10,
+       .src_high = 0x14,
+       .dst_high = 0x18,
+       .mc_seq = 0x1c,
+       .mmio_seq = 0x20,
+       .wcount = 0x24,
+       .wxfer = 0x28,
+       .wstatus = 0x2c,
+       .err_status = 0x34,
+       .fixed_pattern = 0x38,
+};
+
 static const struct tegra_dma_chip_data tegra186_dma_chip_data = {
        .nr_channels = 32,
        .addr_bits = 39,
@@ -1349,6 +1366,16 @@ static const struct tegra_dma_chip_data tegra234_dma_chip_data = {
        .terminate = tegra_dma_pause_noerr,
 };
 
+static const struct tegra_dma_chip_data tegra264_dma_chip_data = {
+       .nr_channels = 32,
+       .addr_bits = 41,
+       .channel_reg_size = SZ_64K,
+       .max_dma_count = SZ_1G,
+       .hw_support_pause = true,
+       .channel_regs = &tegra264_reg_offsets,
+       .terminate = tegra_dma_pause_noerr,
+};
+
 static const struct of_device_id tegra_dma_of_match[] = {
        {
                .compatible = "nvidia,tegra186-gpcdma",
@@ -1359,6 +1386,9 @@ static const struct of_device_id tegra_dma_of_match[] = {
        }, {
                .compatible = "nvidia,tegra234-gpcdma",
                .data = &tegra234_dma_chip_data,
+       }, {
+               .compatible = "nvidia,tegra264-gpcdma",
+               .data = &tegra264_dma_chip_data,
        }, {
        },
 };