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ASoC: cs42l56: fix DT probe

PATCH In review Arnd Bergmann 3 participants 3 messages Jan 26, 2023

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#0 lore raw

PATCH v2 1/1 ASoC: cs42l56: fix DT probe

From: Arnd Bergmann <[email protected]>

While looking through legacy platform data users, I noticed that the DT probing never uses data from the DT properties, as the platform_data structure gets overwritten directly after it is initialized.

There have never been any boards defining the platform_data in the mainline kernel either, so this driver so far only worked with patched kernels or with the default values.

For the benefit of possible downstream users, fix the DT probe by no longer overwriting the data.

---
v2: reword changelog

---
 sound/soc/codecs/cs42l56.c | 6 ------
 1 file changed, 6 deletions(-)
sound/soc/codecs/cs42l56.c +0 -6
index 26066682c983..3b0e715549c9 100644
@@ -1191,18 +1191,12 @@ static int cs42l56_i2c_probe(struct i2c_client *i2c_client)
 	if (pdata) {
 		cs42l56->pdata = *pdata;
 	} else {
-		pdata = devm_kzalloc(&i2c_client->dev, sizeof(*pdata),
-				     GFP_KERNEL);
-		if (!pdata)
-			return -ENOMEM;
-
 		if (i2c_client->dev.of_node) {
 			ret = cs42l56_handle_of_data(i2c_client,
 						     &cs42l56->pdata);
 			if (ret != 0)
 				return ret;
 		}
-		cs42l56->pdata = *pdata;
 	}
 
 	if (cs42l56->pdata.gpio_nreset) {
Signature · 1 line
2.39.0
Acked-by on v2 1/1
#1 lore raw
Quoted 11 lines · Arnd Bergmann

From: Arnd Bergmann <[email protected]>

While looking through legacy platform data users, I noticed that the DT probing never uses data from the DT properties, as the platform_data structure gets overwritten directly after it is initialized.

There have never been any boards defining the platform_data in the mainline kernel either, so this driver so far only worked with patched kernels or with the default values.

Quoted 5 lines

For the benefit of possible downstream users, fix the DT probe by no longer overwriting the data.

---

Thanks,
Charles

maintainer
#2 lore raw
In reply to Arnd Bergmann
Quoted 10 lines · Arnd Bergmann

While looking through legacy platform data users, I noticed that the DT probing never uses data from the DT properties, as the platform_data structure gets overwritten directly after it is initialized.

There have never been any boards defining the platform_data in the mainline kernel either, so this driver so far only worked with patched kernels or with the default values.

[...]

Applied to

broonie/sound.git for-next

Thanks!

[1/1] ASoC: cs42l56: fix DT probe

      commit: e18c6da62edc780e4f4f3c9ce07bdacd69505182

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