[PATCH] [v2] ASoC: cs42l56: fix DT probe
From: Arnd Bergmann arnd@arndb.de
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.
Signed-off-by: Arnd Bergmann arnd@arndb.de --- v2: reword changelog --- sound/soc/codecs/cs42l56.c | 6 ------ 1 file changed, 6 deletions(-)
diff --git a/sound/soc/codecs/cs42l56.c b/sound/soc/codecs/cs42l56.c index 26066682c983..3b0e715549c9 100644 --- a/sound/soc/codecs/cs42l56.c +++ b/sound/soc/codecs/cs42l56.c @@ -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) {
On Thu, Jan 26, 2023 at 05:21:24PM +0100, Arnd Bergmann wrote:
From: Arnd Bergmann arnd@arndb.de
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.
Signed-off-by: Arnd Bergmann arnd@arndb.de
Acked-by: Charles Keepax ckeepax@opensource.cirrus.com
Thanks, Charles
On Thu, 26 Jan 2023 17:21:24 +0100, Arnd Bergmann wrote:
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
participants (3)
-
Arnd Bergmann -
Charles Keepax -
Mark Brown