[PATCH] iio: adc: Kconfig: make AD9467 depend on ADI_AXI_ADC symbol

[PATCH] iio: adc: Kconfig: make AD9467 depend on ADI_AXI_ADC symbol

[Alexandru Ardelean]

Because a dependency on HAS_IOMEM and OF was added for the ADI AXI ADC
driver, this makes the AD9467 driver have some build/dependency issues
when OF is disabled (typically on ACPI archs like x86).

This is because the selection of the AD9467 enforces the ADI_AXI_ADC symbol
which is blocked by the OF (and potentially HAS_IOMEM) being disabled.

To fix this, we make the AD9467 driver depend on the ADI_AXI_ADC symbol.
The AD9467 driver cannot operate on it's own. It requires the ADI AXI ADC
driver to stream data (or some similar IIO interface).

So, the fix here is to make the AD9467 symbol depend on the ADI_AXI_ADC
symbol. At some point this could become it's own subgroup of high-speed
ADCs.

Fixes: be24c65e9fa24 ("iio: adc: adi-axi-adc: add proper Kconfig dependencies")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
---

Apologies for this being too late.
I made the patch but forgot it in a local tree.

Related to discussion:
   https://lkml.org/lkml/2021/3/18/1007

 drivers/iio/adc/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index e0667c4b3c08..dda0f1e37ec1 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -249,7 +249,7 @@ config AD799X
 config AD9467
 	tristate "Analog Devices AD9467 High Speed ADC driver"
 	depends on SPI
-	select ADI_AXI_ADC
+	depends on ADI_AXI_ADC
 	help
 	  Say yes here to build support for Analog Devices:
 	  * AD9467 16-Bit, 200 MSPS/250 MSPS Analog-to-Digital Converter
-- 
2.30.2

Re: [PATCH] iio: adc: Kconfig: make AD9467 depend on ADI_AXI_ADC symbol

[Randy Dunlap]

On 3/24/21 11:27 AM, Alexandru Ardelean wrote:
> Because a dependency on HAS_IOMEM and OF was added for the ADI AXI ADC
> driver, this makes the AD9467 driver have some build/dependency issues
> when OF is disabled (typically on ACPI archs like x86).
> 
> This is because the selection of the AD9467 enforces the ADI_AXI_ADC symbol
> which is blocked by the OF (and potentially HAS_IOMEM) being disabled.
> 
> To fix this, we make the AD9467 driver depend on the ADI_AXI_ADC symbol.
> The AD9467 driver cannot operate on it's own. It requires the ADI AXI ADC
> driver to stream data (or some similar IIO interface).
> 
> So, the fix here is to make the AD9467 symbol depend on the ADI_AXI_ADC
> symbol. At some point this could become it's own subgroup of high-speed
> ADCs.
> 
> Fixes: be24c65e9fa24 ("iio: adc: adi-axi-adc: add proper Kconfig dependencies")
> Reported-by: Randy Dunlap <rdunlap@infradead.org>
> Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>

Acked-by: Randy Dunlap <rdunlap@infradead.org>

Thanks.

> ---
> 
> Apologies for this being too late.
> I made the patch but forgot it in a local tree.
> 
> Related to discussion:
>    https://lkml.org/lkml/2021/3/18/1007
> 
>  drivers/iio/adc/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
> index e0667c4b3c08..dda0f1e37ec1 100644
> --- a/drivers/iio/adc/Kconfig
> +++ b/drivers/iio/adc/Kconfig
> @@ -249,7 +249,7 @@ config AD799X
>  config AD9467
>  	tristate "Analog Devices AD9467 High Speed ADC driver"
>  	depends on SPI
> -	select ADI_AXI_ADC
> +	depends on ADI_AXI_ADC
>  	help
>  	  Say yes here to build support for Analog Devices:
>  	  * AD9467 16-Bit, 200 MSPS/250 MSPS Analog-to-Digital Converter
> 


-- 
~Randy

Re: [PATCH] iio: adc: Kconfig: make AD9467 depend on ADI_AXI_ADC symbol

[Jonathan Cameron]

On Wed, 24 Mar 2021 11:45:14 -0700
Randy Dunlap <rdunlap@infradead.org> wrote:

> On 3/24/21 11:27 AM, Alexandru Ardelean wrote:
> > Because a dependency on HAS_IOMEM and OF was added for the ADI AXI ADC
> > driver, this makes the AD9467 driver have some build/dependency issues
> > when OF is disabled (typically on ACPI archs like x86).
> > 
> > This is because the selection of the AD9467 enforces the ADI_AXI_ADC symbol
> > which is blocked by the OF (and potentially HAS_IOMEM) being disabled.
> > 
> > To fix this, we make the AD9467 driver depend on the ADI_AXI_ADC symbol.
> > The AD9467 driver cannot operate on it's own. It requires the ADI AXI ADC
> > driver to stream data (or some similar IIO interface).
> > 
> > So, the fix here is to make the AD9467 symbol depend on the ADI_AXI_ADC
> > symbol. At some point this could become it's own subgroup of high-speed
> > ADCs.
> > 
> > Fixes: be24c65e9fa24 ("iio: adc: adi-axi-adc: add proper Kconfig dependencies")
> > Reported-by: Randy Dunlap <rdunlap@infradead.org>
> > Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>  
> 
> Acked-by: Randy Dunlap <rdunlap@infradead.org>

Applied to the fixes-togreg branch of iio.git.

I'll do a pull request to Greg sometime in next few days for that
branch.


thanks,

Jonathan

> 
> Thanks.
> 
> > ---
> > 
> > Apologies for this being too late.
> > I made the patch but forgot it in a local tree.
> > 
> > Related to discussion:
> >    https://lkml.org/lkml/2021/3/18/1007
> > 
> >  drivers/iio/adc/Kconfig | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
> > index e0667c4b3c08..dda0f1e37ec1 100644
> > --- a/drivers/iio/adc/Kconfig
> > +++ b/drivers/iio/adc/Kconfig
> > @@ -249,7 +249,7 @@ config AD799X
> >  config AD9467
> >  	tristate "Analog Devices AD9467 High Speed ADC driver"
> >  	depends on SPI
> > -	select ADI_AXI_ADC
> > +	depends on ADI_AXI_ADC
> >  	help
> >  	  Say yes here to build support for Analog Devices:
> >  	  * AD9467 16-Bit, 200 MSPS/250 MSPS Analog-to-Digital Converter
> >   
> 
>