Re: 回复: [EXT] Re: [PATCH v3 01/17] mailbox: add i.MX95 Messaging Unit (MU) driver

[Marek Vasut]

On 1/6/25 6:27 AM, Alice Guo (OSS) wrote:
>> 主题: [EXT] Re: [PATCH v3 01/17] mailbox: add i.MX95 Messaging Unit (MU)
>> driver
>>
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>> On 1/3/25 7:45 AM, Alice Guo wrote:
>>> From: Peng Fan <peng.fan at nxp.com>
>>>
>>> i.MX95 Messaging Unit (MU) enables 2 processors on a chip to
>>> communicate and coordinate by passing messages (e.g. frame
>>> information, event notices and requests) through the MU interface.
>>> This patch provides a driver for i.MX95 MU using the common mailbox
>>> framework. Currently, SCMI exchanges on i.MX95 uses a mailbox
>>> transport with SMT format, and the hardware used is this MU.
>> Is this ported from Linux ? If so, as of which mainline Linux kernel commit ?
> 
> Yes, u-boot/drivers/mailbox/imx-mailbox.c is ported v6.12.8 Linux.

Please add that information into the commit message, including the 
kernel version and Linux commit ID , in case this driver needs to be 
updated.

>> Can you add older iMX SoC support while adding this driver ? It seems
>> imx6..imx95 MU IP look very similar.
> 
> This patch-set is only for i.MX95. I can add the older iMX SoC support in the future.
Maybe you could split off addition of the MU driver into separate series 
and do it for all the SoCs right away instead ?