device/pnp: introduce and use PNP_SKIP_FUNCTION
-1 shouldn't be assigned to an unsigned variable, so use an otherwise unused constant here. Since 7 is the highest virtual LDN number, using 0xffff as PNP_SKIP_FUNCTION marker has no unwanted side effects. Change-Id: I5e31e7ef9dad5fedfd5552963c298336c533a5e9 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37741 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
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@ -370,7 +370,7 @@ void pnp_enable_devices(struct device *base_dev, struct device_operations *ops,
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/* Setup the ops and resources on the newly allocated devices. */
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for (i = 0; i < functions; i++) {
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/* Skip logical devices this Super I/O doesn't have. */
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if (info[i].function == -1)
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if (info[i].function == PNP_SKIP_FUNCTION)
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continue;
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path.pnp.device = info[i].function;
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@ -34,6 +34,7 @@ extern struct device_operations pnp_ops;
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struct pnp_info {
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struct device_operations *ops; /* LDN-specific ops override */
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#define PNP_SKIP_FUNCTION 0xffff
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unsigned int function; /* Must be at least 16 bits (virtual LDNs)! */
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unsigned int flags;
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#define PNP_IO0 0x000001
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@ -280,7 +280,10 @@ static void enable_dev(struct device *dev)
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*/
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for (j = 0; j < ARRAY_SIZE(pnp_dev_info); j++) {
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fn = pnp_dev_info[j].function;
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pnp_dev_info[j].function = logical_device_table[i].devs[fn];
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if (logical_device_table[i].devs[fn] != -1)
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pnp_dev_info[j].function = logical_device_table[i].devs[fn];
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else
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pnp_dev_info[j].function = PNP_SKIP_FUNCTION;
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}
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/* Enable the specified devices (if present on the chip). */
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