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From: Jassi Brar <jassisinghbrar@gmail.com>
Date: Tue, 8 Aug 2017 08:16:24 +0530
Message-ID: <CABb+yY0DQ1H8Apb6PoqKg-HrTfbyxShum9YtJit96T4Yo9+zrQ@mail.gmail.com>
Subject: Re: [PATCH v2 03/18] firmware: arm_scmi: add basic driver
 infrastructure for SCMI
To: Sudeep Holla <sudeep.holla@arm.com>
Cc: ALKML <linux-arm-kernel@lists.infradead.org>,
        LKML <linux-kernel@vger.kernel.org>, DTML <devicetree@vger.kernel.org>,
        Roy Franz <roy.franz@cavium.com>,
        Harb Abdulhamid <harba@codeaurora.org>, Nishanth Menon <nm@ti.com>,
        Arnd Bergmann <arnd@arndb.de>, Loc Ho <lho@apm.com>,
        Alexey Klimov <alexey.klimov@arm.com>,
        Ryan Harkin <Ryan.Harkin@arm.com>
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On Fri, Aug 4, 2017 at 8:01 PM, Sudeep Holla <sudeep.holla@arm.com> wrote:

....
> +int scmi_do_xfer(const struct scmi_handle *handle, struct scmi_xfer *xfer)
> +{
> +       int ret;
> +       int timeout;
> +       struct scmi_info *info = handle_to_scmi_info(handle);
> +       struct device *dev = info->dev;
> +
> +       ret = mbox_send_message(info->tx_chan, xfer);
>
NAK

This is still not fixed. For the reasons mentioned many times like
here...   https://lkml.org/lkml/2017/7/7/465