From: Chen-Yu Tsai <wens@csie.org>

The logic around the reset control is weird. The driver already has
quirks describing which compatible strings require a reset control, but
the reset control is acquired using the "optional" API. Then any errors
other than deferred probe are ignored.

Instead, switch to the non-optional variant. Also use the deassered
variant to simplify the code. This also fixes a missing reset assert
upon removal.

Last, clean up the error message printing with dev_err_probe().

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
 sound/soc/sunxi/sun4i-spdif.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/sound/soc/sunxi/sun4i-spdif.c b/sound/soc/sunxi/sun4i-spdif.c
index 65de03ca3ad2..c2ec19437cd7 100644
--- a/sound/soc/sunxi/sun4i-spdif.c
+++ b/sound/soc/sunxi/sun4i-spdif.c
@@ -712,15 +712,10 @@ static int sun4i_spdif_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, host);
 
 	if (quirks->has_reset) {
-		host->rst = devm_reset_control_get_optional_exclusive(&pdev->dev,
-								      NULL);
-		if (PTR_ERR(host->rst) == -EPROBE_DEFER) {
-			ret = -EPROBE_DEFER;
-			dev_err(&pdev->dev, "Failed to get reset: %d\n", ret);
-			return ret;
-		}
-		if (!IS_ERR(host->rst))
-			reset_control_deassert(host->rst);
+		host->rst = devm_reset_control_get_exclusive_deasserted(&pdev->dev, NULL);
+		if (IS_ERR(host->rst))
+			return dev_err_probe(&pdev->dev, PTR_ERR(host->rst),
+					     "Failed to get reset\n");
 	}
 
 	ret = devm_snd_soc_register_component(&pdev->dev,
-- 
2.47.3

On Tue, 24 Mar 2026 01:24:48 +0800, Chen-Yu Tsai wrote:
> ASoC: sun4i-spdif: Make reset control non-optional and check for all errors

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-7.1

Thanks!

[1/1] ASoC: sun4i-spdif: Make reset control non-optional and check for all errors
      https://git.kernel.org/broonie/sound/c/51b0909d0bc4

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

Dne ponedeljek, 23. marec 2026 ob 18:24:48 Srednjeevropski standardni čas je Chen-Yu Tsai napisal(a):
> From: Chen-Yu Tsai <wens@csie.org>
> 
> The logic around the reset control is weird. The driver already has
> quirks describing which compatible strings require a reset control, but
> the reset control is acquired using the "optional" API. Then any errors
> other than deferred probe are ignored.
> 
> Instead, switch to the non-optional variant. Also use the deassered
> variant to simplify the code. This also fixes a missing reset assert
> upon removal.
> 
> Last, clean up the error message printing with dev_err_probe().
> 
> Signed-off-by: Chen-Yu Tsai <wens@csie.org>

Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>

Best regards,
Jernej