Re: [PATCH v2] ata: pata_at91.c bugfix for high master clock

From: Sergei Shtylyov
Date: Mon Dec 13 2010 - 06:04:05 EST


Hello.

On 12-12-2010 22:02, Igor Plyatov wrote:

The AT91SAM9 microcontrollers with master clock higher then 105 MHz
and PIO0, have overflow of the NCS_RD_PULSE value in the MSB. This
lead to "NCS_RD_PULSE" pulse longer then "NRD_CYCLE" pulse and driver
does not detect ATA device.

Signed-off-by: Igor Plyatov<plyatov@xxxxxxxxx>
[...]

Please use more descriptive comments, because it is not clear what you
mean here. Maybe here you just cut a text...

Exactly, this is how I mark the cut out text.

It is so strange to cut such small amount of text and I does not have
any idea why here is "[...]" exists.

Well, it's still better than leaving large patches quoted and uncommented, having only one comment at the top, as some people do. :-)

diff --git a/drivers/ata/pata_at91.c b/drivers/ata/pata_at91.c
index 0da0dcc..a462405 100644
--- a/drivers/ata/pata_at91.c
+++ b/drivers/ata/pata_at91.c
[...]

The same as above. Nobody are able to read you mind on the distance :-)

It's the first time anybody tried to iterpret my [...] marks as comments. :-)

@@ -50,7 +52,7 @@ struct at91_ide_info {
};

static const struct ata_timing initial_timing =
- {XFER_PIO_0, 70, 290, 240, 600, 165, 150, 600, 0};
+ {XFER_PIO_0, 70, 290, 240, 600, 165, 150, 0, 600, 0};

BTW, you haven't described this in the changelog...

Here is just a typo fixed for the ata_timing structure. This typo does
not have influence on the driver operation, but I do not like to leave
such a negligible problem as it is.

You at least should have noted that in the changelog. And as the change is unrelated to the other changes you're doing, it's a good practice to put it into a separate patch.

WBR, Sergei

Best regards!
--
Igor Plyatov

WBR, Sergei
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