iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ASoC: codecs: wm8993: use 'time_left' variable with wait_for_completion_timeout()

Browse Source 
There is a confusing pattern in the kernel to use a variable named 'timeout' to
store the result of wait_for_completion_timeout() causing patterns like:

	timeout = wait_for_completion_timeout(...)
	if (!timeout) return -ETIMEDOUT;

with all kinds of permutations. Use 'time_left' as a variable to make the code
self explaining.

Fix to the proper variable type 'unsigned long' while here.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20240430115438.29134-3-wsa+renesas@sang-engineering.com
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Wolfram Sang 2024-04-30 13:54:35 +02:00 committed by Mark Brown
parent cfcd957e63
commit 0800660d8c
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
sound/soc/codecs/wm8993.c
View File

@ -470,7 +470,7 @@ static int _wm8993_set_fll(struct snd_soc_component *component, int fll_id, int
struct i2c_client *i2c = to_i2c_client(component->dev);
u16 reg1, reg4, reg5;
struct _fll_div fll_div;
unsigned int timeout;
unsigned long time_left;
int ret;
/* Any change? */
@ -543,19 +543,19 @@ static int _wm8993_set_fll(struct snd_soc_component *component, int fll_id, int
/* If we've got an interrupt wired up make sure we get it */
if (i2c->irq)
timeout = msecs_to_jiffies(20);
time_left = msecs_to_jiffies(20);
else if (Fref < 1000000)
timeout = msecs_to_jiffies(3);
time_left = msecs_to_jiffies(3);
else
timeout = msecs_to_jiffies(1);
time_left = msecs_to_jiffies(1);
try_wait_for_completion(&wm8993->fll_lock);
/* Enable the FLL */
snd_soc_component_write(component, WM8993_FLL_CONTROL_1, reg1 | WM8993_FLL_ENA);
timeout = wait_for_completion_timeout(&wm8993->fll_lock, timeout);
if (i2c->irq && !timeout)
time_left = wait_for_completion_timeout(&wm8993->fll_lock, time_left);
if (i2c->irq && !time_left)
dev_warn(component->dev, "Timed out waiting for FLL\n");
dev_dbg(component->dev, "FLL enabled at %dHz->%dHz\n", Fref, Fout);