Best Regards! Anson Huang > -----Original Message----- > From: Aisheng Dong > Sent: 2019年3月7日 22:00 > To: Anson Huang <anson.huang@xxxxxxx>; catalin.marinas@xxxxxxx; > will.deacon@xxxxxxx; shawnguo@xxxxxxxxxx; s.hauer@xxxxxxxxxxxxxx; > kernel@xxxxxxxxxxxxxx; festevam@xxxxxxxxx; wim@xxxxxxxxxxxxxxxxxx; > linux@xxxxxxxxxxxx; Andy Gross <andy.gross@xxxxxxxxxx>; heiko@xxxxxxxxx; > horms+renesas@xxxxxxxxxxxx; arnd@xxxxxxxx; > maxime.ripard@xxxxxxxxxxx; jagan@xxxxxxxxxxxxxxxxxxxx; > bjorn.andersson@xxxxxxxxxx; enric.balletbo@xxxxxxxxxxxxx; > marc.w.gonzalez@xxxxxxx; olof@xxxxxxxxx; linux-arm- > kernel@xxxxxxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; linux- > watchdog@xxxxxxxxxxxxxxx > Cc: dl-linux-imx <linux-imx@xxxxxxx> > Subject: RE: [PATCH V7 1/3] watchdog: imx_sc: Add i.MX system controller > watchdog support > > [...] > > > > As I replied in another mail, it actually does not depend on SCU. > > > Let's wait for Rob's comment on whether we could move watchdog Out > > > of SCU node. > > > > Per previous discussion, the dependency here is to prevent enabling > > this module for platform without IMX SCU, although it does NOT use SCU > > IPC call, but the SMC call trap into ARM-Trusted-Firmware will > > eventually call SCU API, so it still depends on IMX SCU hardware, I am > > NOT very sure if it is correct to remove it here. > > > > Then it's ATF depends on SCU, not this virtual watchdog based on ARM SIP, > right? But we don't have ATF driver in Linux kernel..., I am confused, anyway, if Guenter agrees, I can remove this dependency here. Anson. > > Regards > Dong Aisheng > > > > > > > > + depends on HAVE_ARM_SMCCC > > > > + select WATCHDOG_CORE > > > > + help > > > > + This is the driver for the system controller watchdog > > > > + on the NXP i.MX SoCs with system controller inside. > > > > + If you have one of these processors and wish to have > > > > + watchdog support enabled, say Y, otherwise say N. > > > > +
