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tpm_tis_spi: set default probe function if device id not match

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In DSDT table, TPM _CID was SMO0768, and no _HID definition. After a
kernel upgrade from 4.19 to 5.10, TPM probe function was changed which
causes device probe fails. In order to make newer kernel to be
compatible with the older acpi definition, it would be best set default
probe function.

Signed-off-by: Liguang Zhang <zhangliguang@linux.alibaba.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
This commit is contained in:
Liguang Zhang 2021-05-07 22:52:55 +08:00 committed by Jarkko Sakkinen
parent 7937bd532f
commit 114e43371c
1 changed files with 8 additions and 4 deletions
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12
drivers/char/tpm/tpm_tis_spi_main.c
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@ -240,10 +240,14 @@ static int tpm_tis_spi_driver_probe(struct spi_device *spi)
tpm_tis_spi_probe_func probe_func;
probe_func = of_device_get_match_data(&spi->dev);
if (!probe_func && spi_dev_id)
probe_func = (tpm_tis_spi_probe_func)spi_dev_id->driver_data;
if (!probe_func)
return -ENODEV;
if (!probe_func) {
if (spi_dev_id) {
probe_func = (tpm_tis_spi_probe_func)spi_dev_id->driver_data;
if (!probe_func)
return -ENODEV;
} else
probe_func = tpm_tis_spi_probe;
}
return probe_func(spi);
}