[PATCH 6/9] mtd: nand: qcom: support for checking read errors for last codeword
miquel.raynal at bootlin.com
Sun Apr 22 09:15:30 PDT 2018
On Thu, 12 Apr 2018 12:47:42 +0530, Abhishek Sahu
<absahu at codeaurora.org> wrote:
> On 2018-04-10 15:35, Miquel Raynal wrote:
> > Hi Abhishek,
> > > On Wed, 4 Apr 2018 18:12:22 +0530, Abhishek Sahu
> > <absahu at codeaurora.org> wrote:
> > >> Add boolean function argument in parse_read_errors to identify
> >> whether the read error has been called for complete page read or
> >> only last codeword read. This will help in subsequent patches to
> >> detect ECC errors in case of last codeword read.
> > > Can you explain when this happen: "last codeword read"? I don't see the
> > use case.
> Hi Miquel,
> This is happening inside qcom_nandc_write_oob where the last subpage
> data is being copied first.
I still don't understand the use case.
What to you mean last 'subpage copied first'?
> host->use_ecc = true;
> ret = copy_last_cw(host, page);
> if (ret)
> return ret;
> you can refer function comment of qcom_nandc_write_oob for more
Miquel Raynal, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
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