dmaengine: tegra: Make reset control optional

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>
Acked-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://patch.msgid.link/20260331102303.33181-5-akhilrajeev@nvidia.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Akhil R
2026-03-31 15:52:57 +05:30
committed by Vinod Koul
parent d6d7ffb994
commit 680e1b928a

View File

@@ -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);