lkml.org 
[lkml]   [2019]   [Apr]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v4 1/9] mtd: rawnand: denali: use nand_chip pointer more for internal functions
Hi Masahiro,

Boris Brezillon <boris.brezillon@collabora.com> wrote on Sat, 30 Mar
2019 15:23:23 +0100:

> On Fri, 29 Mar 2019 16:28:13 +0900
> Masahiro Yamada <yamada.masahiro@socionext.com> wrote:
>
> > With the recent refactoring, the NAND driver hooks now take a pointer
> > to nand_chip. Add to_denali() in order to convert (struct nand_chip *)
> > to (struct denali_nand_info *) directly. It is more useful than the
> > current mtd_to_denali().
> >
> > I changed some helper functions to take (struct nand_chip *). This will
> > avoid pointer conversion back and forth, and ease further development.
> >
> > Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
> > ---
> >
> > Changes in v4: None
> > Changes in v3: None
> > Changes in v2: None
> >
> > drivers/mtd/nand/raw/denali.c | 57 ++++++++++++++++++++++++-------------------
> > 1 file changed, 32 insertions(+), 25 deletions(-)
> >
> > diff --git a/drivers/mtd/nand/raw/denali.c b/drivers/mtd/nand/raw/denali.c
> > index 24aeafc..4ac1314 100644
> > --- a/drivers/mtd/nand/raw/denali.c
> > +++ b/drivers/mtd/nand/raw/denali.c
> > @@ -47,6 +47,11 @@ static inline struct denali_nand_info *mtd_to_denali(struct mtd_info *mtd)
> > return container_of(mtd_to_nand(mtd), struct denali_nand_info, nand);
> > }
> >
> > +static struct denali_nand_info *to_denali(struct nand_chip *chip)
> > +{
> > + return container_of(chip, struct denali_nand_info, nand);
> > +}
> > +
> > /*
> > * Direct Addressing - the slave address forms the control information (command
> > * type, bank, block, and page address). The slave data is the actual data to
> > @@ -282,12 +287,12 @@ static void denali_cmd_ctrl(struct nand_chip *chip, int dat, unsigned int ctrl)
> > denali->host_write(denali, DENALI_BANK(denali) | type, dat);
> > }
> >
> > -static int denali_check_erased_page(struct mtd_info *mtd,
> > - struct nand_chip *chip, uint8_t *buf,
> > +static int denali_check_erased_page(struct nand_chip *chip,
> > + struct denali_nand_info *denali, u8 *buf,
>
> You don't need to pass both chip and denali, as one can be extracted
> from the other.
>
> > unsigned long uncor_ecc_flags,
> > unsigned int max_bitflips)
> > {
> > - struct denali_nand_info *denali = mtd_to_denali(mtd);
> > + struct mtd_ecc_stats *ecc_stats = &nand_to_mtd(chip)->ecc_stats;
> > uint8_t *ecc_code = chip->oob_poi + denali->oob_skip_bytes;
> > int ecc_steps = chip->ecc.steps;
> > int ecc_size = chip->ecc.size;
> > @@ -303,9 +308,9 @@ static int denali_check_erased_page(struct mtd_info *mtd,
> > NULL, 0,
> > chip->ecc.strength);
> > if (stat < 0) {
> > - mtd->ecc_stats.failed++;
> > + ecc_stats->failed++;
> > } else {
> > - mtd->ecc_stats.corrected += stat;
> > + ecc_stats->corrected += stat;
> > max_bitflips = max_t(unsigned int, max_bitflips, stat);
> > }
> >
> > @@ -316,11 +321,11 @@ static int denali_check_erased_page(struct mtd_info *mtd,
> > return max_bitflips;
> > }
> >
> > -static int denali_hw_ecc_fixup(struct mtd_info *mtd,
> > +static int denali_hw_ecc_fixup(struct nand_chip *chip,
> > struct denali_nand_info *denali,
>
> Ditto.
>

I am fine with the series in its current state, please submit a v5
with Boris comment's addressed and I'll queue it right away to next.

Thanks,
Miquèl

\
 
 \ /
  Last update: 2019-04-01 20:03    [W:0.044 / U:0.932 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site