On Mon, 2018-02-26 at 09:33 +0000, John Garry wrote: > On 23/02/2018 17:31, Andy Shevchenko wrote: > > On Fri, 2018-02-23 at 11:02 +0000, John Garry wrote: > > > On 23/02/2018 10:30, Andy Shevchenko wrote: > > > > On Fri, 2018-02-23 at 02:42 +0800, John Garry wrote: > > > We require it for a development board for our hip06 platform. > > > > Okay, and this particular platform uses Synopsys IP? > > As I see this uart is really a virtual 8250, so HW details like apb > clocks and the like are hidden, so may not be relevant. Good to know. > However I will check with the BMC team to know the specific details. > > > > > for supporting an 8250-compatible UART with > > > > > the following profile/features: > > > > > - platform device > > > > > - polling mode (i.e. no interrupt support) > > > > > - ACPI FW > > > > > > > > Elaborate this one, please. > > > > > > So we need to define our own HID here, and cannot use PNP > > > compatible > > > CID > > > (like PNP0501) as we cannot use the 8250 PNP driver. > > > > Why not? What are the impediments? > > > > To support the host controller for this device, we will create an > MFD, > i.e. platform device, per slave device. There is no answer here... > > > This is related to the Hisi LPC ACPI support, where we would > > > create > > > an > > > MFD (i.e. platform device) for the UART. > > > > Why you can't do properly in ACPI? No answer here either. Sorry, but with this level of communication it's no go for the series. -- Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Intel Finland Oy -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
