diff mbox

[v2,1/2] clk: si5351: Fix clkout rate computation.

Message ID 1367560403-21685-1-git-send-email-marek.belisko@streamunlimited.com (mailing list archive)
State New, archived
Headers show

Commit Message

Belisko Marek May 3, 2013, 5:53 a.m. UTC
Rate was incorrectly computed because we read from wrong divider register.

Signed-off-by: Marek Belisko <marek.belisko@streamunlimited.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
 drivers/clk/clk-si5351.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Mike Turquette May 14, 2013, 7:16 p.m. UTC | #1
Quoting Marek Belisko (2013-05-02 22:53:22)
> Rate was incorrectly computed because we read from wrong divider register.
> 
> Signed-off-by: Marek Belisko <marek.belisko@streamunlimited.com>
> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>

Do either of these patches need to go into clk-fixes?  If so please be
explicit about it in the changelog, the section under the three dashes.

Regards,
Mike

> ---
>  drivers/clk/clk-si5351.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/clk/clk-si5351.c b/drivers/clk/clk-si5351.c
> index 8927284..cf39e53 100644
> --- a/drivers/clk/clk-si5351.c
> +++ b/drivers/clk/clk-si5351.c
> @@ -932,7 +932,7 @@ static unsigned long si5351_clkout_recalc_rate(struct clk_hw *hw,
>         unsigned char reg;
>         unsigned char rdiv;
>  
> -       if (hwdata->num > 5)
> +       if (hwdata->num <= 5)
>                 reg = si5351_msynth_params_address(hwdata->num) + 2;
>         else
>                 reg = SI5351_CLK6_7_OUTPUT_DIVIDER;
> -- 
> 1.7.9.5
Marek Belisko May 16, 2013, 7:53 a.m. UTC | #2
On 05/14/2013 09:16 PM, Mike Turquette wrote:
> Quoting Marek Belisko (2013-05-02 22:53:22)
>> Rate was incorrectly computed because we read from wrong divider register.
>>
>> Signed-off-by: Marek Belisko <marek.belisko@streamunlimited.com>
>> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
>
> Do either of these patches need to go into clk-fixes?  If so please be
> explicit about it in the changelog, the section under the three dashes.
Yes I believe they should go to clk-fixes (probably also to linux-stable).
>
> Regards,
> Mike
>
>> ---
>>   drivers/clk/clk-si5351.c |    2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/clk/clk-si5351.c b/drivers/clk/clk-si5351.c
>> index 8927284..cf39e53 100644
>> --- a/drivers/clk/clk-si5351.c
>> +++ b/drivers/clk/clk-si5351.c
>> @@ -932,7 +932,7 @@ static unsigned long si5351_clkout_recalc_rate(struct clk_hw *hw,
>>          unsigned char reg;
>>          unsigned char rdiv;
>>
>> -       if (hwdata->num > 5)
>> +       if (hwdata->num <= 5)
>>                  reg = si5351_msynth_params_address(hwdata->num) + 2;
>>          else
>>                  reg = SI5351_CLK6_7_OUTPUT_DIVIDER;
>> --
>> 1.7.9.5
>

Regards,

Marek
Mike Turquette May 29, 2013, 10:11 p.m. UTC | #3
Quoting Marek Belisko (2013-05-16 00:53:26)
> On 05/14/2013 09:16 PM, Mike Turquette wrote:
> > Quoting Marek Belisko (2013-05-02 22:53:22)
> >> Rate was incorrectly computed because we read from wrong divider register.
> >>
> >> Signed-off-by: Marek Belisko <marek.belisko@streamunlimited.com>
> >> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
> >
> > Do either of these patches need to go into clk-fixes?  If so please be
> > explicit about it in the changelog, the section under the three dashes.
> Yes I believe they should go to clk-fixes (probably also to linux-stable).

Pulled both into clk-fixes.  I added the missing changelog to patch #2
because I am such a nice guy.

Regards,
Mike

> >
> > Regards,
> > Mike
> >
> >> ---
> >>   drivers/clk/clk-si5351.c |    2 +-
> >>   1 file changed, 1 insertion(+), 1 deletion(-)
> >>
> >> diff --git a/drivers/clk/clk-si5351.c b/drivers/clk/clk-si5351.c
> >> index 8927284..cf39e53 100644
> >> --- a/drivers/clk/clk-si5351.c
> >> +++ b/drivers/clk/clk-si5351.c
> >> @@ -932,7 +932,7 @@ static unsigned long si5351_clkout_recalc_rate(struct clk_hw *hw,
> >>          unsigned char reg;
> >>          unsigned char rdiv;
> >>
> >> -       if (hwdata->num > 5)
> >> +       if (hwdata->num <= 5)
> >>                  reg = si5351_msynth_params_address(hwdata->num) + 2;
> >>          else
> >>                  reg = SI5351_CLK6_7_OUTPUT_DIVIDER;
> >> --
> >> 1.7.9.5
> >
> 
> Regards,
> 
> Marek
> -- 
> Marek Belisko
> 
> Software Developer
> StreamUnlimited Engineering GmbH
> Gutheil Schodergasse 8-12
> A-1100 Vienna, Austria
> 
> Office: +421 267200087
> 
> e-mail: marek.belisko@streamunlimited.com
> http://www.streamunlimited.com
> 
> Meet us at:
> 
> IFA - Berlin, 6-11 September
> CEDIA - Denver, 25-28 September
diff mbox

Patch

diff --git a/drivers/clk/clk-si5351.c b/drivers/clk/clk-si5351.c
index 8927284..cf39e53 100644
--- a/drivers/clk/clk-si5351.c
+++ b/drivers/clk/clk-si5351.c
@@ -932,7 +932,7 @@  static unsigned long si5351_clkout_recalc_rate(struct clk_hw *hw,
 	unsigned char reg;
 	unsigned char rdiv;
 
-	if (hwdata->num > 5)
+	if (hwdata->num <= 5)
 		reg = si5351_msynth_params_address(hwdata->num) + 2;
 	else
 		reg = SI5351_CLK6_7_OUTPUT_DIVIDER;