[PATCH AUTOSEL 6.16-5.15] ASoC: codecs: tx-macro: correct tx_macro_component_drv name

[PATCH AUTOSEL 6.16-5.15] ASoC: codecs: tx-macro: correct tx_macro_component_drv name

[Sasha Levin]

From: Alexey Klimov <alexey.klimov@linaro.org>

[ Upstream commit 43e0da37d5cfb23eec6aeee9422f84d86621ce2b ]

We already have a component driver named "RX-MACRO", which is
lpass-rx-macro.c. The tx macro component driver's name should
be "TX-MACRO" accordingly. Fix it.

Cc: Srinivas Kandagatla <srini@kernel.org>
Signed-off-by: Alexey Klimov <alexey.klimov@linaro.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20250806140030.691477-1-alexey.klimov@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

LLM Generated explanations, may be completely bogus:

## Backport Status: **YES**

## Extensive Explanation:

This commit should be backported to stable kernel trees for the
following reasons:

### 1. **Clear Bug Fix with User-Visible Impact**
The commit fixes a copy-paste error where the TX macro codec driver
incorrectly identified itself as "RX-MACRO" instead of "TX-MACRO". This
bug has been present since the driver was initially introduced in commit
c39667ddcfc5 ("ASoC: codecs: lpass-tx-macro: add support for lpass tx
macro"). The incorrect component name causes:
- **Debugfs confusion**: The component appears under
  `/sys/kernel/debug/asoc/` with the wrong name "RX-MACRO", making it
  indistinguishable from the actual RX macro driver
- **Potential userspace issues**: Any userspace tools or scripts that
  rely on component names for identification would be confused
- **Developer confusion**: When debugging audio issues, having two
  different components with the same name makes troubleshooting
  difficult

### 2. **Minimal and Contained Change**
The fix is a simple one-line change that only modifies a string constant
from "RX-MACRO" to "TX-MACRO" in the component driver structure. This is
about as minimal as a fix can get:
```c
- .name = "RX-MACRO",
+ .name = "TX-MACRO",
```

### 3. **No Risk of Regression**
- The change only affects the component's identification string
- It doesn't modify any functional behavior, audio paths, or driver
  logic
- The correct name "TX-MACRO" is consistent with the driver's actual
  purpose (TX = transmit path)
- Other similar macro drivers (WSA-MACRO, VA-MACRO) already use their
  correct respective names

### 4. **Long-Standing Issue**
This bug has existed since the driver was first merged, meaning all
kernel versions with this driver have the incorrect name. Backporting
ensures consistency across all maintained kernel versions.

### 5. **Follows Stable Tree Rules**
- **Important bug fix**: Yes - fixes component identification issue
- **Minimal risk**: Yes - single string change with no functional impact
- **Not a new feature**: Correct - purely a bug fix
- **No architectural changes**: Correct - only changes a name string
- **Clear and obvious fix**: Yes - the TX macro driver should be named
  "TX-MACRO", not "RX-MACRO"

### 6. **No Compatibility Concerns**
While changing a component name could theoretically break userspace that
depends on the incorrect name, this is unlikely because:
- Having two components with identical names ("RX-MACRO") is already
  broken behavior
- Any userspace relying on this would already be confused between the
  two components
- The fix brings the driver in line with its intended design

The commit message clearly indicates this is a straightforward naming
correction, and the code change confirms it's a minimal, safe fix
suitable for stable backporting.

 sound/soc/codecs/lpass-tx-macro.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/lpass-tx-macro.c b/sound/soc/codecs/lpass-tx-macro.c
index 27bae58f4072..fe000ff522d2 100644
--- a/sound/soc/codecs/lpass-tx-macro.c
+++ b/sound/soc/codecs/lpass-tx-macro.c
@@ -2230,7 +2230,7 @@ static int tx_macro_register_mclk_output(struct tx_macro *tx)
 }
 
 static const struct snd_soc_component_driver tx_macro_component_drv = {
-	.name = "RX-MACRO",
+	.name = "TX-MACRO",
 	.probe = tx_macro_component_probe,
 	.controls = tx_macro_snd_controls,
 	.num_controls = ARRAY_SIZE(tx_macro_snd_controls),
-- 
2.50.1