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SubjectRe: [PATCH 1/2] soc: imx-sc: add i.MX system controller soc driver support
On Sun, Apr 21, 2019 at 03:40:00PM +0800, Shawn Guo wrote:
> 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.

Forgot to give pointer to Abel's driver.

https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git/commit/?h=imx/drivers&id=a7e26f356ca12906a164d83c9e9f8527ee7da022

Shawn

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