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| author |   Hans de Goede <hdegoede@redhat.com> | 2022-06-12 17:56:52 +0200 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2022-06-24 16:21:47 +0100 |
| commit | 4e07479eab8a044cc9542414ccb4aeb8eb033bde (patch) | |
| tree | c36b432e9a2f79f965118125109a01cab78d8d97 /sound/soc/intel | |
| parent | MAINTAINERS: update ASoC/Intel/SOF maintainers (diff) | |
| download | linux-dev-4e07479eab8a044cc9542414ccb4aeb8eb033bde.tar.xz linux-dev-4e07479eab8a044cc9542414ccb4aeb8eb033bde.zip | |
ASoC: Intel: bytcr_wm5102: Fix GPIO related probe-ordering problem
The "wlf,spkvdd-ena" GPIO needed by the bytcr_wm5102 driver
is made available through a gpio-lookup table.
This gpio-lookup table is registered by drivers/mfd/arizona-spi.c, which
may get probed after the bytcr_wm5102 driver.
If the gpio-lookup table has not registered yet then the gpiod_get()
will return -ENOENT. Treat -ENOENT as -EPROBE_DEFER to still keep
things working in this case.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220612155652.107310-1-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/intel')
| -rw-r--r-- | sound/soc/intel/boards/bytcr_wm5102.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/sound/soc/intel/boards/bytcr_wm5102.c b/sound/soc/intel/boards/bytcr_wm5102.c index 00384c6fbcaa..330c0ace1638 100644 --- a/sound/soc/intel/boards/bytcr_wm5102.c +++ b/sound/soc/intel/boards/bytcr_wm5102.c @@ -421,8 +421,17 @@ static int snd_byt_wm5102_mc_probe(struct platform_device *pdev) priv->spkvdd_en_gpio = gpiod_get(codec_dev, "wlf,spkvdd-ena", GPIOD_OUT_LOW); put_device(codec_dev); - if (IS_ERR(priv->spkvdd_en_gpio)) - return dev_err_probe(dev, PTR_ERR(priv->spkvdd_en_gpio), "getting spkvdd-GPIO\n"); + if (IS_ERR(priv->spkvdd_en_gpio)) { + ret = PTR_ERR(priv->spkvdd_en_gpio); + /* + * The spkvdd gpio-lookup is registered by: drivers/mfd/arizona-spi.c, + * so -ENOENT means that arizona-spi hasn't probed yet. + */ + if (ret == -ENOENT) + ret = -EPROBE_DEFER; + + return dev_err_probe(dev, ret, "getting spkvdd-GPIO\n"); + } /* override platform name, if required */ byt_wm5102_card.dev = dev; |