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Date:   Sun, 21 Apr 2019 15:40:00 +0800
From:   Shawn Guo <shawnguo@kernel.org>
To:     Anson Huang <anson.huang@nxp.com>
Cc:     "catalin.marinas@arm.com" <catalin.marinas@arm.com>,
        "will.deacon@arm.com" <will.deacon@arm.com>,
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        "olof@lixom.net" <olof@lixom.net>,
        Andy Gross <andy.gross@linaro.org>,
        "bjorn.andersson@linaro.org" <bjorn.andersson@linaro.org>,
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        "l.stach@pengutronix.de" <l.stach@pengutronix.de>,
        Abel Vesa <abel.vesa@nxp.com>,
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Subject: Re: [PATCH 1/2] soc: imx-sc: add i.MX system controller soc driver
 support
Message-ID: <20190421073958.GC19962@dragon>
References: <1554965048-19450-1-git-send-email-Anson.Huang@nxp.com>
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On Thu, Apr 11, 2019 at 06:49:12AM +0000, Anson Huang wrote:
> i.MX8QXP is an ARMv8 SoC which has a Cortex-M4 system controller
> inside, the system controller is in charge of controlling power,
> clock and fuse etc..
> 
> This patch adds i.MX system controller soc driver support,
> Linux kernel has to communicate with system controller via MU
> (message unit) IPC to get soc revision, uid etc..
> 
> With this patch, soc info can be read from sysfs:
> 
> i.mx8qxp-mek# cat /sys/devices/soc0/family
> Freescale i.MX
> 
> i.mx8qxp-mek# cat /sys/devices/soc0/soc_id
> i.MX8QXP
> 
> i.mx8qxp-mek# cat /sys/devices/soc0/machine
> Freescale i.MX8QXP MEK
> 
> i.mx8qxp-mek# cat /sys/devices/soc0/revision
> 1.1
> 
> i.mx8qxp-mek# cat /sys/devices/soc0/soc_uid
> 7B64280B57AC1898
> 
> Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
> ---
>  drivers/soc/imx/Kconfig      |   7 ++
>  drivers/soc/imx/Makefile     |   1 +
>  drivers/soc/imx/soc-imx-sc.c | 220 +++++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 228 insertions(+)
>  create mode 100644 drivers/soc/imx/soc-imx-sc.c

Rather than creating a new driver, please take a look at Abel's generic
i.MX8 SoC driver, and see if it can be extended to cover i.MX8QXP.

Shawn