[PATCH v5 04/10] dmaengine: tegra: Make reset control optional

Akhil R
2026-03-30T14:46:21Z

On Tegra264, reset is not available for the driver to control as
this is handled by the boot firmware. Hence make the reset control
optional and update the error message to reflect the correct error.

Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
---
drivers/dma/tegra186-gpc-dma.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/tegra186-gpc-dma.c b/drivers/dma/tegra186-gpc-dma.c
index 5948fbf32c21..a0522a992ebc 100644
--- a/drivers/dma/tegra186-gpc-dma.c
+++ b/drivers/dma/tegra186-gpc-dma.c
@@ -1381,10 +1381,10 @@ static int tegra_dma_probe(struct platform_device *pdev)
if (IS_ERR(tdma->base_addr))
return PTR_ERR(tdma->base_addr);

- tdma->rst = devm_reset_control_get_exclusive(&pdev->dev, "gpcdma");
+ tdma->rst = devm_reset_control_get_optional_exclusive(&pdev->dev, "gpcdma");
if (IS_ERR(tdma->rst)) {
return dev_err_probe(&pdev->dev, PTR_ERR(tdma->rst),
- "Missing controller reset\n");
+ "Failed to get controller reset\n");
}
reset_control_reset(tdma->rst);

--
2.50.1