[PATCH 1/3] mmc: atmel-mci: correct data timeout computation
Ludovic Desroches
ludovic.desroches at atmel.com
Thu Mar 22 04:57:37 EDT 2012
Hello Sergei,
On Wed, Mar 21, 2012 at 07:26:04PM +0300, Sergei Shtylyov wrote:
> Hello.
>
> On 03/21/2012 06:41 PM, ludovic.desroches at atmel.com wrote:
>
> >From: Ludovic Desroches<ludovic.desroches at atmel.com>
>
> >The HSMCI operates at a rate of up to Master Clock divided by two.
>
> >Signed-off-by: Ludovic Desroches<ludovic.desroches at atmel.com>
> >---
> > drivers/mmc/host/atmel-mci.c | 2 +-
> > 1 files changed, 1 insertions(+), 1 deletions(-)
>
> >diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
> >index e4449a5..e161452 100644
> >--- a/drivers/mmc/host/atmel-mci.c
> >+++ b/drivers/mmc/host/atmel-mci.c
> >@@ -480,7 +480,7 @@ err:
> > static inline unsigned int atmci_ns_to_clocks(struct atmel_mci *host,
> > unsigned int ns)
> > {
> >- return (ns * (host->bus_hz / 1000000) + 999) / 1000;
> >+ return (ns * ((host->bus_hz/2) / 1000000) + 999) / 1000;
>
> Why don't you keep the notation by addign spaces around '/'?
> BTW, could use DIV_ROUND_UP() here.
>
Thanks for your comments. BTW I have realized (when testing values return using
DIV_ROUND_UP) that I may have another issue with this timeout calculation.
I will send a new patch.
Regards
Ludovic
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