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serial/uart_pci_16550.c: fix multiport ax99100

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ax99100 export each serial port as a separate PCI device function
so we have to handle this properly.

Signed-off-by: p-szafonimateusz <p-szafonimateusz@xiaomi.com>
This commit is contained in:
p-szafonimateusz 2024-12-17 11:00:02 +01:00 committed by Alan C. Assis
parent af6c33e010
commit 33a6e70077
1 changed files with 13 additions and 3 deletions
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16
drivers/serial/uart_pci_16550.c
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@ -142,11 +142,13 @@ static const struct pci_u16550_type_s g_pci_u16550_qemu_x4 =
.portincr = 8, .portincr = 8,
}; };
/* NOTE: AX99100 export each serial port as a separate PCI function */
static const struct pci_u16550_type_s g_pci_u16550_ax99100_x2 = static const struct pci_u16550_type_s g_pci_u16550_ax99100_x2 =
{ {
.ports = 2, .ports = 1,
.regincr = 1, .regincr = 1,
.portincr = 8, .portincr = 0,
}; };
static const struct pci_device_id_s g_pci_u16550_id_table[] = static const struct pci_device_id_s g_pci_u16550_id_table[] =
@ -659,6 +661,7 @@ static int pci_u16550_probe(FAR struct pci_device_s *dev)
uintptr_t base = 0; uintptr_t base = 0;
size_t i; size_t i;
uint8_t port; uint8_t port;
uint8_t ports;
bool mmio = false; bool mmio = false;
int ret; int ret;
@ -692,7 +695,14 @@ static int pci_u16550_probe(FAR struct pci_device_s *dev)
mmio = true; mmio = true;
} }
for (port = 0; port < type->ports; port++) /* Get available ports for this device */
ports = type->ports * (PCI_FUNC(dev->devfn) + 1);
port = type->ports * PCI_FUNC(dev->devfn);
/* Register all ports for this device */
for (; port < ports; port++)
{ {
/* Get port address */ /* Get port address */