linux-kernel - Re: [PATCH V7 0/6] Use CCF to describe the UART baud rate clock

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Message-ID: <849a95fd-ae81-9a3b-0c06-dd7826af9eb2@baylibre.com>
Date:   Tue, 1 Mar 2022 08:25:41 +0100
From:   Neil Armstrong <narmstrong@...libre.com>
To:     Yu Tu <yu.tu@...ogic.com>, linux-serial@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Subject: Re: [PATCH V7 0/6] Use CCF to describe the UART baud rate clock

Hi,

Le 25/02/2022 à 08:39, Yu Tu a écrit :
> Using the common Clock code to describe the UART baud rate
> clock makes it easier for the UART driver to be compatible
> with the baud rate requirements of the UART IP on different
> meson chips. Add Meson S4 SoC compatible.
> 
> The test method:
> Start the console and run the following commands in turn:
> stty -F /dev/ttyAML0 115200 and stty -F /dev/ttyAML0 921600.
> 
> Since most SoCs are too old, I was able to find all the platforms myself
> such as Meson6, Meson8, Meson8b, GXL and so on. I only tested it with
> G12A and S4.
> 
> Yu Tu (6):
>    tty: serial: meson: Move request the register region to probe
>    tty: serial: meson: Use devm_ioremap_resource to get register mapped
>      memory
>    tty: serial: meson: Describes the calculation of the UART baud rate
>      clock using a clock frame
>    tty: serial: meson: Make some bit of the REG5 register writable
>    tty: serial: meson: The system stuck when you run the stty command on
>      the console to change the baud rate
>    tty: serial: meson: Added S4 SOC compatibility
> 
> V6 -> V7: To solve the system stuck when you run the stty command on
> the console to change the baud rate.
> V5 -> V6: Change error format as discussed in the email.
> V4 -> V5: Change error format.
> V3 -> V4: Change CCF to describe the UART baud rate clock as discussed
> in the email.
> V2 -> V3: add compatible = "amlogic,meson-gx-uart". Because it must change
> the DTS before it can be deleted
> V1 -> V2: Use CCF to describe the UART baud rate clock.Make some changes as
> discussed in the email
> 
> Link:https://lore.kernel.org/linux-amlogic/20220118030911.12815-4-yu.tu@amlogic.com/
> 
>   drivers/tty/serial/meson_uart.c | 221 ++++++++++++++++++++++----------
>   1 file changed, 154 insertions(+), 67 deletions(-)
> 
> 
> base-commit: a603ca60cebff8589882427a67f870ed946b3fc8

Could you send the emails To Kevin, Jerome, Martin & me, and put the various lists in CC instead ? otherwise we are not notified when the patch is accepted by the tty maintainer.

Thanks,
Neil