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[20/39] mtd: nand: denali_dt: enable HW_ECC_FIXUP capability for DT platform

Message ID 1480183585-592-21-git-send-email-yamada.masahiro@socionext.com
State Deferred
Headers show

Commit Message

Masahiro Yamada Nov. 26, 2016, 6:06 p.m. UTC
The denali_dt.c was split out by Altera for the SOCFPGA port.  The
Denali IP on SOCFPGA incorporates the hardware ECC fixup feature.
Newer versions are very likely to support it.  So, it should be OK
to set DENALI_CAPS_HW_ECC_FIXUP for all DT platforms.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

 drivers/mtd/nand/denali_dt.c | 2 ++
 1 file changed, 2 insertions(+)

Comments

Boris Brezillon Nov. 27, 2016, 4:14 p.m. UTC | #1
On Sun, 27 Nov 2016 03:06:06 +0900
Masahiro Yamada <yamada.masahiro@socionext.com> wrote:

> The denali_dt.c was split out by Altera for the SOCFPGA port.  The
> Denali IP on SOCFPGA incorporates the hardware ECC fixup feature.
> Newer versions are very likely to support it.  So, it should be OK
> to set DENALI_CAPS_HW_ECC_FIXUP for all DT platforms.

Seems like a bad idea. What's the problem with setting this flag in the
data->caps definition of each revision?

> 
> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
> ---
> 
>  drivers/mtd/nand/denali_dt.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/mtd/nand/denali_dt.c b/drivers/mtd/nand/denali_dt.c
> index 293ddb8..9dcd203 100644
> --- a/drivers/mtd/nand/denali_dt.c
> +++ b/drivers/mtd/nand/denali_dt.c
> @@ -59,6 +59,8 @@ static int denali_dt_probe(struct platform_device *ofdev)
>  	if (data)
>  		denali->caps = data->caps;
>  
> +	denali->caps |= DENALI_CAPS_HW_ECC_FIXUP;
> +
>  	denali->platform = DT;
>  	denali->dev = &ofdev->dev;
>  	denali->irq = platform_get_irq(ofdev, 0);
Masahiro Yamada Nov. 30, 2016, 6:14 a.m. UTC | #2
Hi Boris,

2016-11-28 1:14 GMT+09:00 Boris Brezillon <boris.brezillon@free-electrons.com>:
> On Sun, 27 Nov 2016 03:06:06 +0900
> Masahiro Yamada <yamada.masahiro@socionext.com> wrote:
>
>> The denali_dt.c was split out by Altera for the SOCFPGA port.  The
>> Denali IP on SOCFPGA incorporates the hardware ECC fixup feature.
>> Newer versions are very likely to support it.  So, it should be OK
>> to set DENALI_CAPS_HW_ECC_FIXUP for all DT platforms.
>
> Seems like a bad idea. What's the problem with setting this flag in the
> data->caps definition of each revision?

No problem.

I will follow your suggestion in v2.
diff mbox

Patch

diff --git a/drivers/mtd/nand/denali_dt.c b/drivers/mtd/nand/denali_dt.c
index 293ddb8..9dcd203 100644
--- a/drivers/mtd/nand/denali_dt.c
+++ b/drivers/mtd/nand/denali_dt.c
@@ -59,6 +59,8 @@  static int denali_dt_probe(struct platform_device *ofdev)
 	if (data)
 		denali->caps = data->caps;
 
+	denali->caps |= DENALI_CAPS_HW_ECC_FIXUP;
+
 	denali->platform = DT;
 	denali->dev = &ofdev->dev;
 	denali->irq = platform_get_irq(ofdev, 0);