linux-kernel - RE: [PATCH 0/2] mailbox: imx: support new tx doorbell

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Date:   Wed, 11 Oct 2023 23:32:07 +0000
From:   Peng Fan <peng.fan@....com>
To:     Jassi Brar <jassisinghbrar@...il.com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        dl-linux-imx <linux-imx@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Aisheng Dong <aisheng.dong@....com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: RE: [PATCH 0/2] mailbox: imx: support new tx doorbell

Hi Jassi,

> Subject: [PATCH 0/2] mailbox: imx: support new tx doorbell

Would you pick up this patchset? Or any comments?

Thanks,
Peng.

> 
> The new added channel type is for i.MX95 SCMI mailbox usage.
> 
> i.MX95 using TX doorbell and RX doorbell for the SCMI mailbox transport.
> For TX doorbell, we relies on software reply from the other side in SCMI driver
> side using mbox_client_txdone to drive the tx tick.
> 
> But the current MU tx doorbell using tasklet to emulate hardware ACK from
> mailbox driver side, so add a new doorbell type to support i.MX95 SCMI
> mailbox transport.
> 
> Signed-off-by: Peng Fan <peng.fan@....com>
> ---
> Peng Fan (2):
>       dt-bindings: mailbox: fsl,mu: add new tx doorbell channel
>       mailbox: imx: support channel type tx doorbell v2
> 
>  .../devicetree/bindings/mailbox/fsl,mu.yaml        |  5 ++--
>  drivers/mailbox/imx-mailbox.c                      | 32 ++++++++++++++++++++--
>  2 files changed, 32 insertions(+), 5 deletions(-)
> ---
> base-commit: e143016b56ecb0fcda5bb6026b0a25fe55274f56
> change-id: 20230916-imx95-mbox-88437c51ce54
> 
> Best regards,
> --
> Peng Fan <peng.fan@....com>