On Mon, Jul 24, 2023 at 1:33 AM Randy Dunlap <rdun...@infradead.org> wrote:
>
> Reconcile devices.txt with serial/ucc_uart.c regarding device number
> assignments. ucc_uart.c supports 4 ports and uses minor devnums
> 46-49, so update devices.txt with that info.
> Then update ucc_uart.c's reference to the location of the devices.txt
> list in the kernel source tree.
>
> Fixes: d7584ed2b994 ("[POWERPC] qe-uart: add support for Freescale
> QUICCEngine UART")
> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
> Signed-off-by: Randy Dunlap <rdun...@infradead.org>
> Cc: Timur Tabi <ti...@kernel.org>
> Cc: Kumar Gala <ga...@kernel.crashing.org>
> Cc: linuxppc-dev@lists.ozlabs.org
> Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
> Cc: Jiri Slaby <jirisl...@kernel.org>
> Cc: linux-ser...@vger.kernel.org
> Cc: Jonathan Corbet <cor...@lwn.net>
> Cc: linux-...@vger.kernel.org
Acked-by: Timur Tabi <ti...@kernel.org>
One thing does concern me. The UCC UART driver piggy-backs on the CPM
driver's layout (see cpm_uart.h), but apparently CPM UART supports 6
devices, not four:
#define UART_NR fs_uart_nr
where fs_uart_nr is defined in enum fs_uart_id.
Unfortunately, it's been so long since I've touched this code, I'm not
sure whether this means anything.
