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spi: hisi-kunpeng: Use dev_err_probe() for host registration failure

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When the SPI core registers the Kunpeng controller it may need to acquire
chip-select GPIO descriptors. If the GPIO provider has not probed yet,
spi_register_controller() returns -EPROBE_DEFER.

On a Kunpeng system this currently prints an alarming error even though the
next deferred-probe retry succeeds:

  hisi-kunpeng-spi HISI03E1:00: failed to register spi host, ret=-517
  hisi-kunpeng-spi HISI03E1:00: hw version:0x30 max-freq:12500 kHz

Use dev_err_probe() so that -EPROBE_DEFER is reported through the deferred
probe mechanism instead of as a hard error, while preserving normal error
reporting for real registration failures.

Fixes: c770d8631e ("spi: Add HiSilicon SPI Controller Driver for Kunpeng SoCs")

Signed-off-by: Qiang Ma <maqianga@uniontech.com>
Link: https://patch.msgid.link/20260515102620.1926930-1-maqianga@uniontech.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Qiang Ma 2026-05-15 18:26:20 +08:00 committed by Mark Brown
parent fe46080cc0
commit 59b991990a
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GPG Key ID: 24D68B725D5487D0
1 changed files with 2 additions and 4 deletions
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6
drivers/spi/spi-hisi-kunpeng.c
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@ -520,10 +520,8 @@ static int hisi_spi_probe(struct platform_device *pdev)
}
ret = spi_register_controller(host);
if (ret) {
dev_err(dev, "failed to register spi host, ret=%d\n", ret);
return ret;
}
if (ret)
return dev_err_probe(dev, ret, "failed to register spi host\n");
if (hisi_spi_debugfs_init(hs))
dev_info(dev, "failed to create debugfs dir\n");