linux-kernel - Re: [PATCH v7 2/2] mtd: rawnand: meson: add support for Amlogic NAND flash controller

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Date:   Fri, 7 Dec 2018 10:42:54 +0100
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Jianxin Pan <jianxin.pan@...ogic.com>
Cc:     Boris Brezillon <boris.brezillon@...tlin.com>,
        <linux-mtd@...ts.infradead.org>,
        Liang Yang <liang.yang@...ogic.com>,
        Yixun Lan <yixun.lan@...ogic.com>,
        David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Richard Weinberger <richard@....at>,
        Jerome Brunet <jbrunet@...libre.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Carlo Caione <carlo@...one.org>,
        Kevin Hilman <khilman@...libre.com>,
        Rob Herring <robh@...nel.org>, Jian Hu <jian.hu@...ogic.com>,
        Hanjie Lin <hanjie.lin@...ogic.com>,
        Victor Wan <victor.wan@...ogic.com>,
        <linux-amlogic@...ts.infradead.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v7 2/2] mtd: rawnand: meson: add support for Amlogic
 NAND flash controller

Hi Jianxin,

Miquel Raynal <miquel.raynal@...tlin.com> wrote on Fri, 7 Dec 2018
10:24:56 +0100:

> Hi Jianxin,
> 
> Looks good to me overall, a few comments inline.
> 
> Jianxin Pan <jianxin.pan@...ogic.com> wrote on Sat, 17 Nov 2018
> 00:40:38 +0800:
> 
> > From: Liang Yang <liang.yang@...ogic.com>
> > 
> > Add initial support for the Amlogic NAND flash controller which found
> > in the Meson-GXBB/GXL/AXG SoCs.
> > 
> > Signed-off-by: Liang Yang <liang.yang@...ogic.com>
> > Signed-off-by: Yixun Lan <yixun.lan@...ogic.com>
> > Signed-off-by: Jianxin Pan <jianxin.pan@...ogic.com>
> > ---
> >  drivers/mtd/nand/raw/Kconfig      |   10 +
> >  drivers/mtd/nand/raw/Makefile     |    1 +
> >  drivers/mtd/nand/raw/meson_nand.c | 1417 +++++++++++++++++++++++++++++++++++++
> >  3 files changed, 1428 insertions(+)
> >  create mode 100644 drivers/mtd/nand/raw/meson_nand.c
> > 

I forgot to mention, Boris has done more cleanup which breaks your
patches, please have a look at the following commits in the nand/next
branch, they will force you to do some light rework to get the driver
building (especially, you should not export the ->select_chip hook anymore):

7a08dbaedd36 mtd: rawnand: Move ->setup_data_interface() to nand_controller_ops
f2abfeb2078b mtd: rawnand: Move the ->exec_op() method to nand_controller_ops
7d6c37e90cf9 mtd: rawnand: Deprecate the ->select_chip() hook
1770022ffa85 mtd: rawnand: ams-delta: Stop implementing ->select_chip()
653c57c7da08 mtd: rawnand: vf610: Stop implementing ->select_chip()
2ace451cae22 mtd: rawnand: tegra: Stop implementing ->select_chip()
b25251414f6e mtd: rawnand: marvell: Stop implementing ->select_chip()
550b9fc4e3af mtd: rawnand: fsmc: Stop implementing ->select_chip()
02b4a52604a4 mtd: rawnand: Make ->select_chip() optional when ->exec_op() is implemented
ae2294b10b0f mtd: rawnand: Pass the CS line to be selected in struct nand_operation
1d0178593d14 mtd: rawnand: Add nand_[de]select_target() helpers

Thanks,
Miquèl