On 04/16/2019 04:19 AM, masonccyang@xxxxxxxxxxx wrote: >> Re: [PATCH v10 1/3] mfd: Add Renesas R-Car Gen3 RPC-IF MFD controller driver >> >> The patch name is somewhat misleading -- there's no "MFD controller". > > Can't get your point ? > > RPC-IF support SPI and HF, it's a MFD controller and > that's why I patch it to MFD as Marek's comments. I'd like the "controller" word dropped, as MFD stands for multi-function device anyway. "Controller" seems to be superfluous here... >> On 04/15/2019 10:37 AM, Mason Yang wrote: >> >> > Add a driver for Renesas R-Car Gen3 RPC-IF MFD controller. >> > >> > Signed-off-by: Mason Yang <masonccyang@xxxxxxxxxxx> >> [...] >> > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig >> > index 26ad646..7914349 100644 >> > --- a/drivers/mfd/Kconfig >> > +++ b/drivers/mfd/Kconfig >> > @@ -978,6 +978,15 @@ config MFD_RDC321X >> > southbridge which provides access to GPIOs and Watchdog using the >> > southbridge PCI device configuration space. >> > >> > +config MFD_RENESAS_RPC >> > + tristate "Renesas R-Car Gen3 RPC-IF MFD driver" >> > + select MFD_CORE >> > + depends on ARCH_RENESAS >> > + help >> > + This supports for Renesas R-Car Gen3 RPC-IF multifunction device >> >> "For" node needed here. > > ? Sorry, that was a typo: s/node/not/. >> [...] >> > diff --git a/include/linux/mfd/renesas-rpc.h b/include/linux/mfd/ >> renesas-rpc.h >> > new file mode 100644 >> > index 0000000..61ada14 >> > --- /dev/null >> > +++ b/include/linux/mfd/renesas-rpc.h >> > @@ -0,0 +1,153 @@ >> > +// SPDX-License-Identifier: GPL-2.0 >> > +// >> > +// Copyright (C) 2018 ~ 2019 Renesas Solutions Corp. >> > +// Copyright (C) 2019 Macronix International Co., Ltd. >> > +// >> > +// R-Car Gen3 RPC-IF MFD driver >> > +// >> > +// Author: >> > +// Mason Yang <masonccyang@xxxxxxxxxxx> >> > +// >> > + >> > +#ifndef __MFD_RENESAS_RPC_H >> > +#define __MFD_RENESAS_RPC_H >> > + >> > +#include <linux/clk.h> >> > +#include <linux/io.h> >> > +#include <linux/log2.h> >> > +#include <linux/iopoll.h> >> > +#include <linux/module.h> >> > +#include <linux/mtd/mtd.h> >> > +#include <linux/platform_device.h> >> > +#include <linux/pm_runtime.h> >> > +#include <linux/of.h> >> > +#include <linux/regmap.h> >> > +#include <linux/reset.h> >> >> NAK. I have already told you that these #include's are only needed in the >> drivers, not in this header. > > why ? Why what? As a rule of thumb, we #include only headers necessary to build the file in question. > I think these #include files are still needed in HyperFlash driver. Hopefully not. Though that doesn't really matter much. > i.e,. clk controller, mtd and so on. > >> >> My idea is to contain all hardware manipulation in the MFD driver, >> with SPI/HF drivers calling that code via a set of APIs declared in >> this header. >> The registers (declared below) would end up only needed by that >> common MFD driver... > > best regards, > Mason MBR, Sergei
