On Tue, Jul 25, 2023 at 10:23:38AM -0400, Hugo Villeneuve wrote:
> From: Hugo Villeneuve <hvilleneuve@xxxxxxxxxxxx>
>
> Commit 679875d1d880 ("sc16is7xx: Separate GPIOs from modem control lines")
> and commit 21144bab4f11 ("sc16is7xx: Handle modem status lines")
> changed the function of the GPIOs pins to act as modem control
> lines without any possibility of selecting GPIO function.
>
> As a consequence, applications that depends on GPIO lines configured
> by default as GPIO pins no longer work as expected.
>
> Also, the change to select modem control lines function was done only
> for channel A of dual UART variants (752/762). This was not documented
> in the log message.
>
> Allow to specify GPIO or modem control line function in the device
> tree, and for each of the ports (A or B).
>
> Do so by using the new device-tree property named
> "nxp,modem-control-line-ports" (property added in separate patch).
>
> When registering GPIO chip controller, mask-out GPIO pins declared as
> modem control lines according to this new DT property.
>
> Fixes: 679875d1d880 ("sc16is7xx: Separate GPIOs from modem control lines")
> Fixes: 21144bab4f11 ("sc16is7xx: Handle modem status lines")
> Cc: <stable@xxxxxxxxxxxxxxx> # 6.1.x: 95982fad dt-bindings: sc16is7xx: Add property to change GPIO function
> Cc: <stable@xxxxxxxxxxxxxxx> # 6.1.x: 1584d572 serial: sc16is7xx: refactor GPIO controller registration
> Cc: <stable@xxxxxxxxxxxxxxx> # 6.1.x: ac2caa5a serial: sc16is7xx: remove obsolete out_thread label
> Cc: <stable@xxxxxxxxxxxxxxx> # 6.1.x: d90961ad serial: sc16is7xx: mark IOCONTROL register as volatile
> Cc: <stable@xxxxxxxxxxxxxxx> # 6.1.x: 6dae3bad serial: sc16is7xx: fix broken port 0 uart init
Where are these git commit ids from? I don't see them in Linus's tree,
how are they supposed to be picked up by the stable developers if they
are not valid ones?
confused,
greg k-h
