Re: [PATCH net-next 2/2] net: netcp: select davinci_mdio driver by default

2015-03-11 Thread Murali Karicheri

On 03/02/2015 07:04 PM, Tony Lindgren wrote:

* Murali Karicheri  [150302 13:49]:

On 03/02/2015 11:11 AM, Tony Lindgren wrote:


Because we are now force selecting items that may have other
dependencies later on that will not be satisfied. That causes
all kinds of make randconfig build errors.


My mistake.  I didn't ask you what is your definition of a silent option? An
option not selected by any other option? Or an option for which default
value not defined? Can you clarify this so that I can make sense of your
comment? I checked Documentation/kbuild/kconfig.txt as well as
Documentation/kbuild/kconfig-language.txt for defintion, but can't find it.

Howeve, I read the warning about using "select" in the above document since
it blindly select the option without checking dependencies. So AFAIK, select
becomes an issue if the config option is not the leaf option of the config
tree as the dependency checking is not in place and can cause issues. In
this case it is safe as DAVINCI_MDIO is a leaf option and only selects
PHYLIB which dependents on NETDEVICES and we know this is true for NETCP
devices. So select is just fine here.


OK I think you're right that in this case it won't cause issues.

But if these cpsw components are never selectable by the user for
any real use case, then you may want to make them silent Kconfig
options:

config TI_DAVINCI_MDIO
bool
select PHYLIB

config TI_DAVINCI_CPDMA
bool

config TI_CPSW_PHY_SEL
bool

config TI_CPSW_ALE
bool
...
This clean up can be a separate patch in the future and I can post 
something. But would require help from the affacted platform owners to 
test the patch. For now, I will keep the patch for my next revision.


Murali


Regards,

Tony



--
Murali Karicheri
Linux Kernel, Texas Instruments
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Re: [PATCH net-next 2/2] net: netcp: select davinci_mdio driver by default

2015-03-11 Thread Murali Karicheri

On 03/02/2015 07:04 PM, Tony Lindgren wrote:

* Murali Karicherim-kariche...@ti.com  [150302 13:49]:

On 03/02/2015 11:11 AM, Tony Lindgren wrote:


Because we are now force selecting items that may have other
dependencies later on that will not be satisfied. That causes
all kinds of make randconfig build errors.


My mistake.  I didn't ask you what is your definition of a silent option? An
option not selected by any other option? Or an option for which default
value not defined? Can you clarify this so that I can make sense of your
comment? I checked Documentation/kbuild/kconfig.txt as well as
Documentation/kbuild/kconfig-language.txt for defintion, but can't find it.

Howeve, I read the warning about using select in the above document since
it blindly select the option without checking dependencies. So AFAIK, select
becomes an issue if the config option is not the leaf option of the config
tree as the dependency checking is not in place and can cause issues. In
this case it is safe as DAVINCI_MDIO is a leaf option and only selects
PHYLIB which dependents on NETDEVICES and we know this is true for NETCP
devices. So select is just fine here.


OK I think you're right that in this case it won't cause issues.

But if these cpsw components are never selectable by the user for
any real use case, then you may want to make them silent Kconfig
options:

config TI_DAVINCI_MDIO
bool
select PHYLIB

config TI_DAVINCI_CPDMA
bool

config TI_CPSW_PHY_SEL
bool

config TI_CPSW_ALE
bool
...
This clean up can be a separate patch in the future and I can post 
something. But would require help from the affacted platform owners to 
test the patch. For now, I will keep the patch for my next revision.


Murali


Regards,

Tony



--
Murali Karicheri
Linux Kernel, Texas Instruments
--
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Re: [PATCH net-next 2/2] net: netcp: select davinci_mdio driver by default

2015-03-02 Thread Tony Lindgren
* Murali Karicheri  [150302 13:49]:
> On 03/02/2015 11:11 AM, Tony Lindgren wrote:
> >
> >Because we are now force selecting items that may have other
> >dependencies later on that will not be satisfied. That causes
> >all kinds of make randconfig build errors.
> >
> My mistake.  I didn't ask you what is your definition of a silent option? An
> option not selected by any other option? Or an option for which default
> value not defined? Can you clarify this so that I can make sense of your
> comment? I checked Documentation/kbuild/kconfig.txt as well as
> Documentation/kbuild/kconfig-language.txt for defintion, but can't find it.
> 
> Howeve, I read the warning about using "select" in the above document since
> it blindly select the option without checking dependencies. So AFAIK, select
> becomes an issue if the config option is not the leaf option of the config
> tree as the dependency checking is not in place and can cause issues. In
> this case it is safe as DAVINCI_MDIO is a leaf option and only selects
> PHYLIB which dependents on NETDEVICES and we know this is true for NETCP
> devices. So select is just fine here.

OK I think you're right that in this case it won't cause issues.

But if these cpsw components are never selectable by the user for
any real use case, then you may want to make them silent Kconfig
options:

config TI_DAVINCI_MDIO
bool
select PHYLIB

config TI_DAVINCI_CPDMA
bool

config TI_CPSW_PHY_SEL
bool

config TI_CPSW_ALE
bool
...

Regards,

Tony
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Re: [PATCH net-next 2/2] net: netcp: select davinci_mdio driver by default

2015-03-02 Thread Murali Karicheri

On 03/02/2015 11:11 AM, Tony Lindgren wrote:

* Murali Karicheri  [150227 12:59]:

On 02/27/2015 11:29 AM, Tony Lindgren wrote:

* Murali Karicheri   [150224 13:31]:

Keystone netcp driver re-uses davinci mdio driver. So enable it
by default for keystone netcp driver.

Signed-off-by: Murali Karicheri
---
  drivers/net/ethernet/ti/Kconfig |1 +
  1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig
index 3bc992c..945a221 100644
--- a/drivers/net/ethernet/ti/Kconfig
+++ b/drivers/net/ethernet/ti/Kconfig
@@ -88,6 +88,7 @@ config TI_CPTS
  config TI_KEYSTONE_NETCP
tristate "TI Keystone NETCP Core Support"
select TI_CPSW_ALE
+   select TI_DAVINCI_MDIO
depends on OF
depends on KEYSTONE_NAVIGATOR_DMA&&   KEYSTONE_NAVIGATOR_QMSS
---help---


These options should be silent Kconfig options if we're selecting
them. Or else you should use depends on instead.


Just followed the existing implementation as it made sense.

config TI_DAVINCI_EMAC
tristate "TI DaVinci EMAC Support"
depends on ARM&&  ( ARCH_DAVINCI || ARCH_OMAP3 )
select TI_DAVINCI_MDIO
select TI_DAVINCI_CPDMA
select PHYLIB
---help---
  This driver supports TI's DaVinci Ethernet .

  To compile this driver as a module, choose M here: the module
  will be called davinci_emac_driver.  This is recommended.

config TI_CPSW
tristate "TI CPSW Switch Support"
depends on ARCH_DAVINCI || ARCH_OMAP2PLUS
select TI_DAVINCI_CPDMA
select TI_DAVINCI_MDIO
select TI_CPSW_PHY_SEL
select TI_CPSW_ALE
select MFD_SYSCON
select REGMAP
---help---
  This driver supports TI's CPSW Ethernet Switch.

  To compile this driver as a module, choose M here: the module
  will be called cpsw.

Why it has to be silent options?


Because we are now force selecting items that may have other
dependencies later on that will not be satisfied. That causes
all kinds of make randconfig build errors.
My mistake.  I didn't ask you what is your definition of a silent 
option? An option not selected by any other option? Or an option for 
which default value not defined? Can you clarify this so that I can make 
sense of your comment? I checked Documentation/kbuild/kconfig.txt as 
well as Documentation/kbuild/kconfig-language.txt for defintion, but 
can't find it.


Howeve, I read the warning about using "select" in the above document 
since it blindly select the option without checking dependencies. So 
AFAIK, select becomes an issue if the config option is not the leaf 
option of the config tree as the dependency checking is not in place and 
can cause issues. In this case it is safe as DAVINCI_MDIO is a leaf 
option and only selects PHYLIB which dependents on NETDEVICES and we 
know this is true for NETCP devices. So select is just fine here.





NetCP driver would require DAVINCI_MDIO driver to function.
So "select" make sense to me instead of "depend". How do
you think depend can be used here?


In that case you'd have to have things the other way around:

config TI_CPSW
tristate "TI CPSW Switch Support"
depends on ARCH_DAVINCI || ARCH_OMAP2PLUS || \
TI_DAVINCI_CPDMA || TI_DAVINCI_MDIO || \
TI_CPSW_PHY_SEL || TI_CPSW_ALE || \
MFD_SYSCON || REGMAP

But I think it's best to make these options silent Kconfig
options so the consumer drivers can select whatever components
they need to use. There should not be any need for users to
have to select these options.


Users don't select any option other than NETCP. User may not need to 
know what are all the hardware drivers required to enable NETCP device 
on the platform and it is best to describe that through Kconfig instead 
of putting the burden on the user. Though select has limitations, AFAIK 
it doesn't apply here.


Thanks

Murali


Regards,

Tony



--
Murali Karicheri
Linux Kernel, Texas Instruments
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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Please read the FAQ at  http://www.tux.org/lkml/


Re: [PATCH net-next 2/2] net: netcp: select davinci_mdio driver by default

2015-03-02 Thread Tony Lindgren
* Murali Karicheri  [150227 12:59]:
> On 02/27/2015 11:29 AM, Tony Lindgren wrote:
> >* Murali Karicheri  [150224 13:31]:
> >>Keystone netcp driver re-uses davinci mdio driver. So enable it
> >>by default for keystone netcp driver.
> >>
> >>Signed-off-by: Murali Karicheri
> >>---
> >>  drivers/net/ethernet/ti/Kconfig |1 +
> >>  1 file changed, 1 insertion(+)
> >>
> >>diff --git a/drivers/net/ethernet/ti/Kconfig 
> >>b/drivers/net/ethernet/ti/Kconfig
> >>index 3bc992c..945a221 100644
> >>--- a/drivers/net/ethernet/ti/Kconfig
> >>+++ b/drivers/net/ethernet/ti/Kconfig
> >>@@ -88,6 +88,7 @@ config TI_CPTS
> >>  config TI_KEYSTONE_NETCP
> >>tristate "TI Keystone NETCP Core Support"
> >>select TI_CPSW_ALE
> >>+   select TI_DAVINCI_MDIO
> >>depends on OF
> >>depends on KEYSTONE_NAVIGATOR_DMA&&  KEYSTONE_NAVIGATOR_QMSS
> >>---help---
> >
> >These options should be silent Kconfig options if we're selecting
> >them. Or else you should use depends on instead.
> >
> Just followed the existing implementation as it made sense.
> 
> config TI_DAVINCI_EMAC
>   tristate "TI DaVinci EMAC Support"
>   depends on ARM && ( ARCH_DAVINCI || ARCH_OMAP3 )
>   select TI_DAVINCI_MDIO
>   select TI_DAVINCI_CPDMA
>   select PHYLIB
>   ---help---
> This driver supports TI's DaVinci Ethernet .
> 
> To compile this driver as a module, choose M here: the module
> will be called davinci_emac_driver.  This is recommended.
> 
> config TI_CPSW
>   tristate "TI CPSW Switch Support"
>   depends on ARCH_DAVINCI || ARCH_OMAP2PLUS
>   select TI_DAVINCI_CPDMA
>   select TI_DAVINCI_MDIO
>   select TI_CPSW_PHY_SEL
>   select TI_CPSW_ALE
>   select MFD_SYSCON
>   select REGMAP
>   ---help---
> This driver supports TI's CPSW Ethernet Switch.
> 
> To compile this driver as a module, choose M here: the module
> will be called cpsw.
> 
> Why it has to be silent options?

Because we are now force selecting items that may have other
dependencies later on that will not be satisfied. That causes
all kinds of make randconfig build errors.

> NetCP driver would require DAVINCI_MDIO driver to function.
> So "select" make sense to me instead of "depend". How do
> you think depend can be used here?

In that case you'd have to have things the other way around:

config TI_CPSW
tristate "TI CPSW Switch Support"
depends on ARCH_DAVINCI || ARCH_OMAP2PLUS || \
TI_DAVINCI_CPDMA || TI_DAVINCI_MDIO || \
TI_CPSW_PHY_SEL || TI_CPSW_ALE || \
MFD_SYSCON || REGMAP

But I think it's best to make these options silent Kconfig
options so the consumer drivers can select whatever components
they need to use. There should not be any need for users to
have to select these options.

Regards,

Tony 
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


Re: [PATCH net-next 2/2] net: netcp: select davinci_mdio driver by default

2015-03-02 Thread Murali Karicheri

On 03/02/2015 11:11 AM, Tony Lindgren wrote:

* Murali Karicherim-kariche...@ti.com  [150227 12:59]:

On 02/27/2015 11:29 AM, Tony Lindgren wrote:

* Murali Karicherim-kariche...@ti.com   [150224 13:31]:

Keystone netcp driver re-uses davinci mdio driver. So enable it
by default for keystone netcp driver.

Signed-off-by: Murali Karicherim-kariche...@ti.com
---
  drivers/net/ethernet/ti/Kconfig |1 +
  1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig
index 3bc992c..945a221 100644
--- a/drivers/net/ethernet/ti/Kconfig
+++ b/drivers/net/ethernet/ti/Kconfig
@@ -88,6 +88,7 @@ config TI_CPTS
  config TI_KEYSTONE_NETCP
tristate TI Keystone NETCP Core Support
select TI_CPSW_ALE
+   select TI_DAVINCI_MDIO
depends on OF
depends on KEYSTONE_NAVIGATOR_DMA   KEYSTONE_NAVIGATOR_QMSS
---help---


These options should be silent Kconfig options if we're selecting
them. Or else you should use depends on instead.


Just followed the existing implementation as it made sense.

config TI_DAVINCI_EMAC
tristate TI DaVinci EMAC Support
depends on ARM  ( ARCH_DAVINCI || ARCH_OMAP3 )
select TI_DAVINCI_MDIO
select TI_DAVINCI_CPDMA
select PHYLIB
---help---
  This driver supports TI's DaVinci Ethernet .

  To compile this driver as a module, choose M here: the module
  will be called davinci_emac_driver.  This is recommended.

config TI_CPSW
tristate TI CPSW Switch Support
depends on ARCH_DAVINCI || ARCH_OMAP2PLUS
select TI_DAVINCI_CPDMA
select TI_DAVINCI_MDIO
select TI_CPSW_PHY_SEL
select TI_CPSW_ALE
select MFD_SYSCON
select REGMAP
---help---
  This driver supports TI's CPSW Ethernet Switch.

  To compile this driver as a module, choose M here: the module
  will be called cpsw.

Why it has to be silent options?


Because we are now force selecting items that may have other
dependencies later on that will not be satisfied. That causes
all kinds of make randconfig build errors.
My mistake.  I didn't ask you what is your definition of a silent 
option? An option not selected by any other option? Or an option for 
which default value not defined? Can you clarify this so that I can make 
sense of your comment? I checked Documentation/kbuild/kconfig.txt as 
well as Documentation/kbuild/kconfig-language.txt for defintion, but 
can't find it.


Howeve, I read the warning about using select in the above document 
since it blindly select the option without checking dependencies. So 
AFAIK, select becomes an issue if the config option is not the leaf 
option of the config tree as the dependency checking is not in place and 
can cause issues. In this case it is safe as DAVINCI_MDIO is a leaf 
option and only selects PHYLIB which dependents on NETDEVICES and we 
know this is true for NETCP devices. So select is just fine here.





NetCP driver would require DAVINCI_MDIO driver to function.
So select make sense to me instead of depend. How do
you think depend can be used here?


In that case you'd have to have things the other way around:

config TI_CPSW
tristate TI CPSW Switch Support
depends on ARCH_DAVINCI || ARCH_OMAP2PLUS || \
TI_DAVINCI_CPDMA || TI_DAVINCI_MDIO || \
TI_CPSW_PHY_SEL || TI_CPSW_ALE || \
MFD_SYSCON || REGMAP

But I think it's best to make these options silent Kconfig
options so the consumer drivers can select whatever components
they need to use. There should not be any need for users to
have to select these options.


Users don't select any option other than NETCP. User may not need to 
know what are all the hardware drivers required to enable NETCP device 
on the platform and it is best to describe that through Kconfig instead 
of putting the burden on the user. Though select has limitations, AFAIK 
it doesn't apply here.


Thanks

Murali


Regards,

Tony



--
Murali Karicheri
Linux Kernel, Texas Instruments
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


Re: [PATCH net-next 2/2] net: netcp: select davinci_mdio driver by default

2015-03-02 Thread Tony Lindgren
* Murali Karicheri m-kariche...@ti.com [150302 13:49]:
 On 03/02/2015 11:11 AM, Tony Lindgren wrote:
 
 Because we are now force selecting items that may have other
 dependencies later on that will not be satisfied. That causes
 all kinds of make randconfig build errors.
 
 My mistake.  I didn't ask you what is your definition of a silent option? An
 option not selected by any other option? Or an option for which default
 value not defined? Can you clarify this so that I can make sense of your
 comment? I checked Documentation/kbuild/kconfig.txt as well as
 Documentation/kbuild/kconfig-language.txt for defintion, but can't find it.
 
 Howeve, I read the warning about using select in the above document since
 it blindly select the option without checking dependencies. So AFAIK, select
 becomes an issue if the config option is not the leaf option of the config
 tree as the dependency checking is not in place and can cause issues. In
 this case it is safe as DAVINCI_MDIO is a leaf option and only selects
 PHYLIB which dependents on NETDEVICES and we know this is true for NETCP
 devices. So select is just fine here.

OK I think you're right that in this case it won't cause issues.

But if these cpsw components are never selectable by the user for
any real use case, then you may want to make them silent Kconfig
options:

config TI_DAVINCI_MDIO
bool
select PHYLIB

config TI_DAVINCI_CPDMA
bool

config TI_CPSW_PHY_SEL
bool

config TI_CPSW_ALE
bool
...

Regards,

Tony
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


Re: [PATCH net-next 2/2] net: netcp: select davinci_mdio driver by default

2015-03-02 Thread Tony Lindgren
* Murali Karicheri m-kariche...@ti.com [150227 12:59]:
 On 02/27/2015 11:29 AM, Tony Lindgren wrote:
 * Murali Karicherim-kariche...@ti.com  [150224 13:31]:
 Keystone netcp driver re-uses davinci mdio driver. So enable it
 by default for keystone netcp driver.
 
 Signed-off-by: Murali Karicherim-kariche...@ti.com
 ---
   drivers/net/ethernet/ti/Kconfig |1 +
   1 file changed, 1 insertion(+)
 
 diff --git a/drivers/net/ethernet/ti/Kconfig 
 b/drivers/net/ethernet/ti/Kconfig
 index 3bc992c..945a221 100644
 --- a/drivers/net/ethernet/ti/Kconfig
 +++ b/drivers/net/ethernet/ti/Kconfig
 @@ -88,6 +88,7 @@ config TI_CPTS
   config TI_KEYSTONE_NETCP
 tristate TI Keystone NETCP Core Support
 select TI_CPSW_ALE
 +   select TI_DAVINCI_MDIO
 depends on OF
 depends on KEYSTONE_NAVIGATOR_DMA  KEYSTONE_NAVIGATOR_QMSS
 ---help---
 
 These options should be silent Kconfig options if we're selecting
 them. Or else you should use depends on instead.
 
 Just followed the existing implementation as it made sense.
 
 config TI_DAVINCI_EMAC
   tristate TI DaVinci EMAC Support
   depends on ARM  ( ARCH_DAVINCI || ARCH_OMAP3 )
   select TI_DAVINCI_MDIO
   select TI_DAVINCI_CPDMA
   select PHYLIB
   ---help---
 This driver supports TI's DaVinci Ethernet .
 
 To compile this driver as a module, choose M here: the module
 will be called davinci_emac_driver.  This is recommended.
 
 config TI_CPSW
   tristate TI CPSW Switch Support
   depends on ARCH_DAVINCI || ARCH_OMAP2PLUS
   select TI_DAVINCI_CPDMA
   select TI_DAVINCI_MDIO
   select TI_CPSW_PHY_SEL
   select TI_CPSW_ALE
   select MFD_SYSCON
   select REGMAP
   ---help---
 This driver supports TI's CPSW Ethernet Switch.
 
 To compile this driver as a module, choose M here: the module
 will be called cpsw.
 
 Why it has to be silent options?

Because we are now force selecting items that may have other
dependencies later on that will not be satisfied. That causes
all kinds of make randconfig build errors.

 NetCP driver would require DAVINCI_MDIO driver to function.
 So select make sense to me instead of depend. How do
 you think depend can be used here?

In that case you'd have to have things the other way around:

config TI_CPSW
tristate TI CPSW Switch Support
depends on ARCH_DAVINCI || ARCH_OMAP2PLUS || \
TI_DAVINCI_CPDMA || TI_DAVINCI_MDIO || \
TI_CPSW_PHY_SEL || TI_CPSW_ALE || \
MFD_SYSCON || REGMAP

But I think it's best to make these options silent Kconfig
options so the consumer drivers can select whatever components
they need to use. There should not be any need for users to
have to select these options.

Regards,

Tony 
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


Re: [PATCH net-next 2/2] net: netcp: select davinci_mdio driver by default

2015-02-27 Thread Murali Karicheri

On 02/27/2015 11:29 AM, Tony Lindgren wrote:

* Murali Karicheri  [150224 13:31]:

Keystone netcp driver re-uses davinci mdio driver. So enable it
by default for keystone netcp driver.

Signed-off-by: Murali Karicheri
---
  drivers/net/ethernet/ti/Kconfig |1 +
  1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig
index 3bc992c..945a221 100644
--- a/drivers/net/ethernet/ti/Kconfig
+++ b/drivers/net/ethernet/ti/Kconfig
@@ -88,6 +88,7 @@ config TI_CPTS
  config TI_KEYSTONE_NETCP
tristate "TI Keystone NETCP Core Support"
select TI_CPSW_ALE
+   select TI_DAVINCI_MDIO
depends on OF
depends on KEYSTONE_NAVIGATOR_DMA&&  KEYSTONE_NAVIGATOR_QMSS
---help---


These options should be silent Kconfig options if we're selecting
them. Or else you should use depends on instead.


Just followed the existing implementation as it made sense.

config TI_DAVINCI_EMAC
tristate "TI DaVinci EMAC Support"
depends on ARM && ( ARCH_DAVINCI || ARCH_OMAP3 )
select TI_DAVINCI_MDIO
select TI_DAVINCI_CPDMA
select PHYLIB
---help---
  This driver supports TI's DaVinci Ethernet .

  To compile this driver as a module, choose M here: the module
  will be called davinci_emac_driver.  This is recommended.

config TI_CPSW
tristate "TI CPSW Switch Support"
depends on ARCH_DAVINCI || ARCH_OMAP2PLUS
select TI_DAVINCI_CPDMA
select TI_DAVINCI_MDIO
select TI_CPSW_PHY_SEL
select TI_CPSW_ALE
select MFD_SYSCON
select REGMAP
---help---
  This driver supports TI's CPSW Ethernet Switch.

  To compile this driver as a module, choose M here: the module
  will be called cpsw.

Why it has to be silent options? NetCP driver would require DAVINCI_MDIO 
driver to function. So "select" make sense to me instead of "depend". 
How do you think depend can be used here?


Murali


In general using select for driver modules will eventually lead into
randconfig build failures as things change.

Regards,

Tony



--
Murali Karicheri
Linux Kernel, Texas Instruments
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Re: [PATCH net-next 2/2] net: netcp: select davinci_mdio driver by default

2015-02-27 Thread Tony Lindgren
* Murali Karicheri  [150224 13:31]:
> Keystone netcp driver re-uses davinci mdio driver. So enable it
> by default for keystone netcp driver.
> 
> Signed-off-by: Murali Karicheri 
> ---
>  drivers/net/ethernet/ti/Kconfig |1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig
> index 3bc992c..945a221 100644
> --- a/drivers/net/ethernet/ti/Kconfig
> +++ b/drivers/net/ethernet/ti/Kconfig
> @@ -88,6 +88,7 @@ config TI_CPTS
>  config TI_KEYSTONE_NETCP
>   tristate "TI Keystone NETCP Core Support"
>   select TI_CPSW_ALE
> + select TI_DAVINCI_MDIO
>   depends on OF
>   depends on KEYSTONE_NAVIGATOR_DMA && KEYSTONE_NAVIGATOR_QMSS
>   ---help---

These options should be silent Kconfig options if we're selecting
them. Or else you should use depends on instead.

In general using select for driver modules will eventually lead into
randconfig build failures as things change.

Regards,

Tony
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Re: [PATCH net-next 2/2] net: netcp: select davinci_mdio driver by default

2015-02-27 Thread Tony Lindgren
* Murali Karicheri m-kariche...@ti.com [150224 13:31]:
 Keystone netcp driver re-uses davinci mdio driver. So enable it
 by default for keystone netcp driver.
 
 Signed-off-by: Murali Karicheri m-kariche...@ti.com
 ---
  drivers/net/ethernet/ti/Kconfig |1 +
  1 file changed, 1 insertion(+)
 
 diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig
 index 3bc992c..945a221 100644
 --- a/drivers/net/ethernet/ti/Kconfig
 +++ b/drivers/net/ethernet/ti/Kconfig
 @@ -88,6 +88,7 @@ config TI_CPTS
  config TI_KEYSTONE_NETCP
   tristate TI Keystone NETCP Core Support
   select TI_CPSW_ALE
 + select TI_DAVINCI_MDIO
   depends on OF
   depends on KEYSTONE_NAVIGATOR_DMA  KEYSTONE_NAVIGATOR_QMSS
   ---help---

These options should be silent Kconfig options if we're selecting
them. Or else you should use depends on instead.

In general using select for driver modules will eventually lead into
randconfig build failures as things change.

Regards,

Tony
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Re: [PATCH net-next 2/2] net: netcp: select davinci_mdio driver by default

2015-02-27 Thread Murali Karicheri

On 02/27/2015 11:29 AM, Tony Lindgren wrote:

* Murali Karicherim-kariche...@ti.com  [150224 13:31]:

Keystone netcp driver re-uses davinci mdio driver. So enable it
by default for keystone netcp driver.

Signed-off-by: Murali Karicherim-kariche...@ti.com
---
  drivers/net/ethernet/ti/Kconfig |1 +
  1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig
index 3bc992c..945a221 100644
--- a/drivers/net/ethernet/ti/Kconfig
+++ b/drivers/net/ethernet/ti/Kconfig
@@ -88,6 +88,7 @@ config TI_CPTS
  config TI_KEYSTONE_NETCP
tristate TI Keystone NETCP Core Support
select TI_CPSW_ALE
+   select TI_DAVINCI_MDIO
depends on OF
depends on KEYSTONE_NAVIGATOR_DMA  KEYSTONE_NAVIGATOR_QMSS
---help---


These options should be silent Kconfig options if we're selecting
them. Or else you should use depends on instead.


Just followed the existing implementation as it made sense.

config TI_DAVINCI_EMAC
tristate TI DaVinci EMAC Support
depends on ARM  ( ARCH_DAVINCI || ARCH_OMAP3 )
select TI_DAVINCI_MDIO
select TI_DAVINCI_CPDMA
select PHYLIB
---help---
  This driver supports TI's DaVinci Ethernet .

  To compile this driver as a module, choose M here: the module
  will be called davinci_emac_driver.  This is recommended.

config TI_CPSW
tristate TI CPSW Switch Support
depends on ARCH_DAVINCI || ARCH_OMAP2PLUS
select TI_DAVINCI_CPDMA
select TI_DAVINCI_MDIO
select TI_CPSW_PHY_SEL
select TI_CPSW_ALE
select MFD_SYSCON
select REGMAP
---help---
  This driver supports TI's CPSW Ethernet Switch.

  To compile this driver as a module, choose M here: the module
  will be called cpsw.

Why it has to be silent options? NetCP driver would require DAVINCI_MDIO 
driver to function. So select make sense to me instead of depend. 
How do you think depend can be used here?


Murali


In general using select for driver modules will eventually lead into
randconfig build failures as things change.

Regards,

Tony



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Murali Karicheri
Linux Kernel, Texas Instruments
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