[RESEND PATCH v2 0/2] iio: frequency: ad9832: cleanups

[RESEND PATCH v2 0/2] iio: frequency: ad9832: cleanups

[Joshua Crofts]

This series cleans up issues in the AD9832 driver,
including proxy header removal and bit math
simplification.

Resent because of typo in linux-staging list
email.

v2:
 - PATCH 1: removed redundant bits.h include as it
   is implied in bitops.h
 - PATCH 2: changed ull to u64 type

Joshua Crofts (2):
  iio: frequency: ad9832: remove kernel.h proxy header.
  iio: frequency: ad9832: simplify bitwise math

 drivers/staging/iio/frequency/ad9832.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

-- 
2.34.1

[RESEND PATCH v2 1/2] iio: frequency: ad9832: remove kernel.h proxy header.

[Joshua Crofts]

Remove kernel.h proxy header and add bitops.h for
better dependency control and code clarity.

Signed-off-by: Joshua Crofts <joshua.crofts1@gmail.com>
---
v2:
 - removed redundant bits.h header

 drivers/staging/iio/frequency/ad9832.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/iio/frequency/ad9832.c b/drivers/staging/iio/frequency/ad9832.c
index b87ea1781b..8873a6d11e 100644
--- a/drivers/staging/iio/frequency/ad9832.c
+++ b/drivers/staging/iio/frequency/ad9832.c
@@ -8,11 +8,10 @@
 #include <asm/div64.h>
 
 #include <linux/bitfield.h>
-#include <linux/bits.h>
+#include <linux/bitops.h>
 #include <linux/clk.h>
 #include <linux/device.h>
 #include <linux/err.h>
-#include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
-- 
2.34.1

[RESEND PATCH v2 2/2] iio: frequency: ad9832: simplify bitwise math

[Joshua Crofts]

Refactor the ad9832_calc_freqreg by adding a BIT_ULL()
macro instead of manual bit shifting for better
readability.

Signed-off-by: Joshua Crofts <joshua.crofts1@gmail.com>
---
v2:
 - changed ull to u64 type

 drivers/staging/iio/frequency/ad9832.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/iio/frequency/ad9832.c b/drivers/staging/iio/frequency/ad9832.c
index 8873a6d11e..4221e51dc4 100644
--- a/drivers/staging/iio/frequency/ad9832.c
+++ b/drivers/staging/iio/frequency/ad9832.c
@@ -112,8 +112,8 @@ struct ad9832_state {
 
 static unsigned long ad9832_calc_freqreg(unsigned long mclk, unsigned long fout)
 {
-	unsigned long long freqreg = (u64)fout *
-				     (u64)((u64)1L << AD9832_FREQ_BITS);
+	u64 freqreg = (u64)fout * BIT_ULL(AD9832_FREQ_BITS)i;
+
 	do_div(freqreg, mclk);
 	return freqreg;
 }
-- 
2.34.1

Re: [RESEND PATCH v2 2/2] iio: frequency: ad9832: simplify bitwise math

[Dan Carpenter]

On Sat, Apr 11, 2026 at 10:58:48AM +0200, Joshua Crofts wrote:
> Refactor the ad9832_calc_freqreg by adding a BIT_ULL()
> macro instead of manual bit shifting for better
> readability.
> 
> Signed-off-by: Joshua Crofts <joshua.crofts1@gmail.com>
> ---
> v2:
>  - changed ull to u64 type
> 
>  drivers/staging/iio/frequency/ad9832.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/staging/iio/frequency/ad9832.c b/drivers/staging/iio/frequency/ad9832.c
> index 8873a6d11e..4221e51dc4 100644
> --- a/drivers/staging/iio/frequency/ad9832.c
> +++ b/drivers/staging/iio/frequency/ad9832.c
> @@ -112,8 +112,8 @@ struct ad9832_state {
>  
>  static unsigned long ad9832_calc_freqreg(unsigned long mclk, unsigned long fout)
>  {
> -	unsigned long long freqreg = (u64)fout *
> -				     (u64)((u64)1L << AD9832_FREQ_BITS);
> +	u64 freqreg = (u64)fout * BIT_ULL(AD9832_FREQ_BITS)i;
                                                           ^
This extra i char is something I really dread as a vim user.  :P

regards,
dan carpenter

Re: [RESEND PATCH v2 2/2] iio: frequency: ad9832: simplify bitwise math

[Joshua Crofts]

On Sat, 11 Apr 2026 at 12:38, Dan Carpenter <error27@gmail.com> wrote:
> >  static unsigned long ad9832_calc_freqreg(unsigned long mclk, unsigned long fout)
> >  {
> > -     unsigned long long freqreg = (u64)fout *
> > -                                  (u64)((u64)1L << AD9832_FREQ_BITS);
> > +     u64 freqreg = (u64)fout * BIT_ULL(AD9832_FREQ_BITS)i;
>                                                            ^
> This extra i char is something I really dread as a vim user.  :P

Damn, that's embarrassing... Should I wait 24 hours before submitting a fix
even if it's this trivial? Thanks.

-- 
Kind regards

CJD

Re: [RESEND PATCH v2 2/2] iio: frequency: ad9832: simplify bitwise math

[Dan Carpenter]

On Sat, Apr 11, 2026 at 12:47:42PM +0200, Joshua Crofts wrote:
> On Sat, 11 Apr 2026 at 12:38, Dan Carpenter <error27@gmail.com> wrote:
> > >  static unsigned long ad9832_calc_freqreg(unsigned long mclk, unsigned long fout)
> > >  {
> > > -     unsigned long long freqreg = (u64)fout *
> > > -                                  (u64)((u64)1L << AD9832_FREQ_BITS);
> > > +     u64 freqreg = (u64)fout * BIT_ULL(AD9832_FREQ_BITS)i;
> >                                                            ^
> > This extra i char is something I really dread as a vim user.  :P
> 
> Damn, that's embarrassing... Should I wait 24 hours before submitting a fix
> even if it's this trivial? Thanks.

We're not the boss of you.  Do whatever you want to.  :P

regards,
dan carpenter

Re: [RESEND PATCH v2 2/2] iio: frequency: ad9832: simplify bitwise math

[David Lechner]

On 4/11/26 5:47 AM, Joshua Crofts wrote:
> On Sat, 11 Apr 2026 at 12:38, Dan Carpenter <error27@gmail.com> wrote:
>>>  static unsigned long ad9832_calc_freqreg(unsigned long mclk, unsigned long fout)
>>>  {
>>> -     unsigned long long freqreg = (u64)fout *
>>> -                                  (u64)((u64)1L << AD9832_FREQ_BITS);
>>> +     u64 freqreg = (u64)fout * BIT_ULL(AD9832_FREQ_BITS)i;
>>                                                            ^
>> This extra i char is something I really dread as a vim user.  :P
> 
> Damn, that's embarrassing... Should I wait 24 hours before submitting a fix
> even if it's this trivial? Thanks.
> 

The risk of not waiting though is now you have a review tag on v2
and you've already sent a v3 without it.