[U-Boot] [PATCH] cmd_sf: rename "speed" to "hz"

[U-Boot] [PATCH] cmd_sf: rename "speed" to "hz"

[Mike Frysinger]

The term "hz" is used everywhere else when talking about the frequency of
the SPI bus, so have the sf command use it as well to stay consistent.  It
even presents itself as "hz" when showing user help.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
 common/cmd_sf.c |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/common/cmd_sf.c b/common/cmd_sf.c
index 8c0a751..902e51d 100644
--- a/common/cmd_sf.c
+++ b/common/cmd_sf.c
@@ -8,8 +8,8 @@
 
 #include <asm/io.h>
 
-#ifndef CONFIG_SF_DEFAULT_SPEED
-# define CONFIG_SF_DEFAULT_SPEED	1000000
+#ifndef CONFIG_SF_DEFAULT_HZ
+# define CONFIG_SF_DEFAULT_HZ	1000000
 #endif
 #ifndef CONFIG_SF_DEFAULT_MODE
 # define CONFIG_SF_DEFAULT_MODE		SPI_MODE_3
@@ -21,7 +21,7 @@ static int do_spi_flash_probe(int argc, char *argv[])
 {
 	unsigned int bus = 0;
 	unsigned int cs;
-	unsigned int speed = CONFIG_SF_DEFAULT_SPEED;
+	unsigned int hz = CONFIG_SF_DEFAULT_HZ;
 	unsigned int mode = CONFIG_SF_DEFAULT_MODE;
 	char *endp;
 	struct spi_flash *new;
@@ -43,7 +43,7 @@ static int do_spi_flash_probe(int argc, char *argv[])
 	}
 
 	if (argc >= 3) {
-		speed = simple_strtoul(argv[2], &endp, 0);
+		hz = simple_strtoul(argv[2], &endp, 0);
 		if (*argv[2] == 0 || *endp != 0)
 			goto usage;
 	}
@@ -53,7 +53,7 @@ static int do_spi_flash_probe(int argc, char *argv[])
 			goto usage;
 	}
 
-	new = spi_flash_probe(bus, cs, speed, mode);
+	new = spi_flash_probe(bus, cs, hz, mode);
 	if (!new) {
 		printf("Failed to initialize SPI flash at %u:%u\n", bus, cs);
 		return 1;
-- 
1.6.0.4

[U-Boot] [PATCH] cmd_sf: rename "speed" to "hz"

[Wolfgang Denk]

Dear Mike Frysinger,

In message <1229034488-26048-1-git-send-email-vapier@gentoo.org> you wrote:
> The term "hz" is used everywhere else when talking about the frequency of
> the SPI bus, so have the sf command use it as well to stay consistent.  It
> even presents itself as "hz" when showing user help.
> 
> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
> ---
>  common/cmd_sf.c |   10 +++++-----
>  1 files changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/common/cmd_sf.c b/common/cmd_sf.c
> index 8c0a751..902e51d 100644
> --- a/common/cmd_sf.c
> +++ b/common/cmd_sf.c
> @@ -8,8 +8,8 @@
>  
>  #include <asm/io.h>
>  
> -#ifndef CONFIG_SF_DEFAULT_SPEED
> -# define CONFIG_SF_DEFAULT_SPEED	1000000
> +#ifndef CONFIG_SF_DEFAULT_HZ
> +# define CONFIG_SF_DEFAULT_HZ	1000000

I consider "FREQ" (and even "SPEED) a much better name than "HZ". 

"HZ" is the unit of what you are measuring, not a name for what you
are measuring.

NAK.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
The universe does not have laws - it has habits, and  habits  can  be
broken.

[U-Boot] [PATCH] cmd_sf: rename "speed" to "hz"

[Mike Frysinger]

On Thursday 11 December 2008 18:59:46 Wolfgang Denk wrote:
> In message Mike Frysinger you wrote:
> > The term "hz" is used everywhere else when talking about the frequency of
> > the SPI bus, so have the sf command use it as well to stay consistent. 
> > It even presents itself as "hz" when showing user help.
> >
> > Signed-off-by: Mike Frysinger <vapier@gentoo.org>
> > ---
> >  common/cmd_sf.c |   10 +++++-----
> >  1 files changed, 5 insertions(+), 5 deletions(-)
> >
> > diff --git a/common/cmd_sf.c b/common/cmd_sf.c
> > index 8c0a751..902e51d 100644
> > --- a/common/cmd_sf.c
> > +++ b/common/cmd_sf.c
> > @@ -8,8 +8,8 @@
> >
> >  #include <asm/io.h>
> >
> > -#ifndef CONFIG_SF_DEFAULT_SPEED
> > -# define CONFIG_SF_DEFAULT_SPEED	1000000
> > +#ifndef CONFIG_SF_DEFAULT_HZ
> > +# define CONFIG_SF_DEFAULT_HZ	1000000
>
> I consider "FREQ" (and even "SPEED) a much better name than "HZ".
>
> "HZ" is the unit of what you are measuring, not a name for what you
> are measuring.

then they should all be converted.  not 90% using hz and 10% using something 
else.  "speed" is bad as it doesnt convey the unit while "hz" is pretty clear.
-mike
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 835 bytes
Desc: This is a digitally signed message part.
Url : http://lists.denx.de/pipermail/u-boot/attachments/20081211/12343581/attachment-0001.pgp 

[U-Boot] [PATCH] cmd_sf: rename "speed" to "hz"

[Wolfgang Denk]

Dear Mike Frysinger,

In message <200812112130.02918.vapier@gentoo.org> you wrote:
>
> > > -#ifndef CONFIG_SF_DEFAULT_SPEED
> > > -# define CONFIG_SF_DEFAULT_SPEED	1000000
> > > +#ifndef CONFIG_SF_DEFAULT_HZ
> > > +# define CONFIG_SF_DEFAULT_HZ	1000000
> >
> > I consider "FREQ" (and even "SPEED) a much better name than "HZ".
> >
> > "HZ" is the unit of what you are measuring, not a name for what you
> > are measuring.
> 
> then they should all be converted.  not 90% using hz and 10% using something 

Agreed.

> else.  "speed" is bad as it doesnt convey the unit while "hz" is pretty clear.

You are right, but that could be mentioned in the documentation
then...

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
People are very flexible and learn to adjust to strange  surroundings
--  they can become accustomed to read Lisp and Fortran programs, for
example.   - Leon Sterling and Ehud Shapiro, Art of Prolog, MIT Press

[U-Boot] [PATCH] cmd_sf: rename "speed" to "hz"

[Mike Frysinger]

On Friday 12 December 2008 02:22:16 Wolfgang Denk wrote:
> In message <200812112130.02918.vapier@gentoo.org> you wrote:
> > > > -#ifndef CONFIG_SF_DEFAULT_SPEED
> > > > -# define CONFIG_SF_DEFAULT_SPEED	1000000
> > > > +#ifndef CONFIG_SF_DEFAULT_HZ
> > > > +# define CONFIG_SF_DEFAULT_HZ	1000000
> > >
> > > I consider "FREQ" (and even "SPEED) a much better name than "HZ".
> > >
> > > "HZ" is the unit of what you are measuring, not a name for what you
> > > are measuring.
> >
> > then they should all be converted.  not 90% using hz and 10% using
> > something
>
> Agreed.
>
> > else.  "speed" is bad as it doesnt convey the unit while "hz" is pretty
> > clear.
>
> You are right, but that could be mentioned in the documentation
> then...

that seems silly to me.  we can either have self-explaining defines, or 
confusing ones which requires people to read the documentation to figure out ?
-mike
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 835 bytes
Desc: This is a digitally signed message part.
Url : http://lists.denx.de/pipermail/u-boot/attachments/20081222/0bdb61b1/attachment.pgp 

[U-Boot] [PATCH] cmd_sf: rename "speed" to "hz"

[Jerry Van Baren]

Mike Frysinger wrote:
> On Thursday 11 December 2008 18:59:46 Wolfgang Denk wrote:
>> In message Mike Frysinger you wrote:
>>> The term "hz" is used everywhere else when talking about the frequency of
>>> the SPI bus, so have the sf command use it as well to stay consistent. 
>>> It even presents itself as "hz" when showing user help.
>>>
>>> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
>>> ---
>>>  common/cmd_sf.c |   10 +++++-----
>>>  1 files changed, 5 insertions(+), 5 deletions(-)
>>>
>>> diff --git a/common/cmd_sf.c b/common/cmd_sf.c
>>> index 8c0a751..902e51d 100644
>>> --- a/common/cmd_sf.c
>>> +++ b/common/cmd_sf.c
>>> @@ -8,8 +8,8 @@
>>>
>>>  #include <asm/io.h>
>>>
>>> -#ifndef CONFIG_SF_DEFAULT_SPEED
>>> -# define CONFIG_SF_DEFAULT_SPEED	1000000
>>> +#ifndef CONFIG_SF_DEFAULT_HZ
>>> +# define CONFIG_SF_DEFAULT_HZ	1000000
>> I consider "FREQ" (and even "SPEED) a much better name than "HZ".
>>
>> "HZ" is the unit of what you are measuring, not a name for what you
>> are measuring.
> 
> then they should all be converted.  not 90% using hz and 10% using something 
> else.  "speed" is bad as it doesnt convey the unit while "hz" is pretty clear.
> -mike

Maybe I'm being pedantic or have drunk too much coffee, but "clk" (clock 
rate, _expressed_ in Hz) is better than "speed" IMHO.  "bps" (bits per 
second) is another alternative, although it has its own problems if the 
data rate is different when sending "0" bits vs. "1" bits (e.g. 1-wire).

Best regards,
gvb

[U-Boot] [PATCH] cmd_sf: rename "speed" to "hz"

[Haavard Skinnemoen]

Mike Frysinger wrote:
> The term "hz" is used everywhere else when talking about the frequency of
> the SPI bus, so have the sf command use it as well to stay consistent.  It
> even presents itself as "hz" when showing user help.
> 
> Signed-off-by: Mike Frysinger <vapier@gentoo.org>

I like it. "hz" makes it perfectly clear what the value means.

Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>