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net: ipa: introduce ipa_version_valid()

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Define and use a new function that just validates the version
defined in configuration data.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alex Elder 2021-06-11 15:39:39 -05:00 committed by David S. Miller
parent 9e8fb7bf9c
commit e22e8e2fae
1 changed files with 26 additions and 1 deletions
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27
drivers/net/ipa/ipa_main.c
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@ -639,6 +639,27 @@ static void ipa_validate_build(void)
#endif /* IPA_VALIDATE */
}
static bool ipa_version_valid(enum ipa_version version)
{
switch (version) {
case IPA_VERSION_3_0:
case IPA_VERSION_3_1:
case IPA_VERSION_3_5:
case IPA_VERSION_3_5_1:
case IPA_VERSION_4_0:
case IPA_VERSION_4_1:
case IPA_VERSION_4_2:
case IPA_VERSION_4_5:
case IPA_VERSION_4_7:
case IPA_VERSION_4_9:
case IPA_VERSION_4_11:
return true;
default:
return false;
}
}
/**
* ipa_probe() - IPA platform driver probe function
* @pdev: Platform device pointer
@ -676,11 +697,15 @@ static int ipa_probe(struct platform_device *pdev)
/* Get configuration data early; needed for clock initialization */
data = of_device_get_match_data(dev);
if (!data) {
/* This is really IPA_VALIDATE (should never happen) */
dev_err(dev, "matched hardware not supported\n");
return -ENODEV;
}
if (!ipa_version_valid(data->version)) {
dev_err(dev, "invalid IPA version\n");
return -EINVAL;
}
/* If we need Trust Zone, make sure it's available */
modem_init = of_property_read_bool(dev->of_node, "modem-init");
if (!modem_init)