From: "Shivamurthy Shastri (sshivamurthy)" <sshivamurthy@micron.com>
To: 'Miquel Raynal' <miquel.raynal@bootlin.com>
Cc: Richard Weinberger <richard@nod.at>,
David Woodhouse <dwmw2@infradead.org>,
Brian Norris <computersforpeace@gmail.com>,
Marek Vasut <marek.vasut@gmail.com>,
Vignesh Raghavendra <vigneshr@ti.com>,
Boris Brezillon <bbrezillon@kernel.org>,
Marcel Ziswiler <marcel.ziswiler@toradex.com>,
Frieder Schrempf <frieder.schrempf@kontron.de>,
"linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Jeff Kletsky <git-commits@allycomm.com>,
Chuanhong Guo <gch981213@gmail.com>,
liaoweixiong <liaoweixiong@allwinnertech.com>
Subject: RE: [EXT] Re: [PATCH 1/8] mtd: nand: move ONFI related functions to onfi.h
Date: Mon, 19 Aug 2019 08:35:22 +0000 [thread overview]
Message-ID: <MN2PR08MB5951AA8A1DE9D9A2AA4B2023B8A80@MN2PR08MB5951.namprd08.prod.outlook.com> (raw)
In-Reply-To: <20190807103437.36abb59b@xps13>
Hi Miquel,
Thanks for reviewing.
>
> Hi Shiva,
>
> shiva.linuxworks@gmail.com wrote on Mon, 22 Jul 2019 07:56:14 +0200:
>
> > From: Shivamurthy Shastri <sshivamurthy@micron.com>
> >
> > These functions will be used by both raw NAND and SPI NAND, which
> > supports ONFI like standards.
>
> This is not exactly what you do. Why not:
>
> mtd: nand: export ONFI related functions to onfi.h
>
> These functions can be used by all flavors of NAND chips (raw, SPI)
> which may all follow ONFI standards. Export the related functions in
> the onfi.h generic file.
>
Looks good. I will use this.
> >
> > Signed-off-by: Shivamurthy Shastri <sshivamurthy@micron.com>
> > ---
> > drivers/mtd/nand/raw/internals.h | 1 -
> > include/linux/mtd/onfi.h | 9 +++++++++
> > 2 files changed, 9 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/mtd/nand/raw/internals.h
> b/drivers/mtd/nand/raw/internals.h
> > index cba6fe7dd8c4..ed323087d884 100644
> > --- a/drivers/mtd/nand/raw/internals.h
> > +++ b/drivers/mtd/nand/raw/internals.h
> > @@ -140,7 +140,6 @@ void nand_legacy_adjust_cmdfunc(struct
> nand_chip *chip);
> > int nand_legacy_check_hooks(struct nand_chip *chip);
> >
> > /* ONFI functions */
> > -u16 onfi_crc16(u16 crc, u8 const *p, size_t len);
> > int nand_onfi_detect(struct nand_chip *chip);
> >
> > /* JEDEC functions */
> > diff --git a/include/linux/mtd/onfi.h b/include/linux/mtd/onfi.h
> > index 339ac798568e..2c8a05a02bb0 100644
> > --- a/include/linux/mtd/onfi.h
> > +++ b/include/linux/mtd/onfi.h
> > @@ -10,6 +10,7 @@
> > #ifndef __LINUX_MTD_ONFI_H
> > #define __LINUX_MTD_ONFI_H
> >
> > +#include <linux/mtd/nand.h>
>
> This should be removed, or at least not added at this moment.
>
okay.
> > #include <linux/types.h>
> >
> > /* ONFI version bits */
> > @@ -175,4 +176,12 @@ struct onfi_params {
> > u8 vendor[88];
> > };
> >
> > +/* ONFI functions */
> > +u16 onfi_crc16(u16 crc, u8 const *p, size_t len);
> > +void nand_bit_wise_majority(const void **srcbufs,
> > + unsigned int nsrcbufs,
> > + void *dstbuf,
> > + unsigned int bufsize);
>
> Don't export this function while you don't use it from elsewhere.
>
The function will be moved to nand/onfi.c in next patch and will be
used by both raw and SPI NAND.
> > +void sanitize_string(u8 *s, size_t len);
>
> This one is used by jedec code and has no onfi-related logic, so you
> may want to export it (only when you will use it) in another header
> like linux/mtd/nand.h
okay, I will keep this as it is.
>
> > +
> > #endif /* __LINUX_MTD_ONFI_H */
>
> Thanks,
> Miquèl
Thanks,
Shiva
next prev parent reply other threads:[~2019-08-19 8:36 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-22 5:56 [PATCH 0/8] Introduce generic ONFI support shiva.linuxworks
2019-07-22 5:56 ` [PATCH 1/8] mtd: nand: move ONFI related functions to onfi.h shiva.linuxworks
2019-08-07 8:34 ` Miquel Raynal
2019-08-19 8:35 ` Shivamurthy Shastri (sshivamurthy) [this message]
2019-07-22 5:56 ` [PATCH 2/8] mtd: nand: move support functions for ONFI to nand/onfi.c shiva.linuxworks
2019-08-07 9:03 ` Miquel Raynal
2019-08-19 8:36 ` [EXT] " Shivamurthy Shastri (sshivamurthy)
2019-07-22 5:56 ` [PATCH 3/8] mtd: nand: create ONFI table parsing instance shiva.linuxworks
2019-08-07 9:09 ` Miquel Raynal
2019-07-22 5:56 ` [PATCH 4/8] mtd: spinand: enabled parameter page support shiva.linuxworks
2019-08-07 9:48 ` Miquel Raynal
2019-08-19 8:51 ` [EXT] " Shivamurthy Shastri (sshivamurthy)
2019-08-19 9:21 ` Miquel Raynal
2019-09-30 13:23 ` Shivamurthy Shastri (sshivamurthy)
2019-10-07 7:52 ` Boris Brezillon
2019-07-22 5:56 ` [PATCH 5/8] mtd: spinand: micron: prepare for generalizing driver shiva.linuxworks
2019-08-07 9:51 ` Miquel Raynal
2019-07-22 5:56 ` [PATCH 6/8] mtd: spinand: micron: Turn driver implementation generic shiva.linuxworks
2019-08-07 10:04 ` Miquel Raynal
2019-08-19 9:03 ` [EXT] " Shivamurthy Shastri (sshivamurthy)
2019-08-19 9:19 ` Miquel Raynal
2019-09-16 10:41 ` Shivamurthy Shastri (sshivamurthy)
2019-10-07 8:13 ` Boris Brezillon
2019-10-14 12:49 ` Shivamurthy Shastri (sshivamurthy)
2019-07-22 5:56 ` [PATCH 7/8] mtd: spinand: micron: Fix read failure in Micron M70A flashes shiva.linuxworks
2019-08-07 10:05 ` Miquel Raynal
2019-07-22 5:56 ` [PATCH 8/8] mtd: spinand: micron: Enable micron flashes with multi-die shiva.linuxworks
2019-08-07 10:08 ` Miquel Raynal
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