Messages in this thread | | | Date | Tue, 22 Nov 2022 09:51:12 +0200 | From | Tony Lindgren <> | Subject | Re: [PATCH v3 4/4] arm64: dts: ti: Add support for J784S4 EVM board |
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* Andrew Davis <afd@ti.com> [221118 21:05]: > Why do we need SERIAL_8250_NR_UARTS at all, might be a better question. > These should be dynamically allocated if the number goes over the > default count imposed by the TTY framework. Maybe folks are still a > bit too afraid to touch the TTY subsystem core, I don't blame them..
The 8250 core preallocates a number of ports for use, see serial8250_isa_init_ports() and serial8250_register_8250_port(). As the serial port driver probes, the preallocated ports get re-assigned to the port driver.
Maybe we could keep the static serial8250_ports[] and add those ports to a list where also the dynamically allocated ports would go..
Regards,
Tony
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