diff mbox series

imx: mx6cuboxi: Disable CONFIG_IMX_THERMAL

Message ID 20201029000222.2537644-1-sjg@chromium.org
State Changes Requested
Delegated to: Tom Rini
Headers show
Series imx: mx6cuboxi: Disable CONFIG_IMX_THERMAL | expand

Commit Message

Simon Glass Oct. 29, 2020, 12:02 a.m. UTC
This feature is incompatble with of-platdata since it uses the
U_BOOT_DEVICE() macro. With of-platdata the only devices permitted are
those created by dtoc.

Drop this option for now, until the driver can be corrected.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

 include/configs/mx6cuboxi.h | 2 --
 1 file changed, 2 deletions(-)

Comments

Baruch Siach Oct. 29, 2020, 5:14 a.m. UTC | #1
Hi Simon,

Adding Walter to Cc.

On Thu, Oct 29 2020, Simon Glass wrote:
> This feature is incompatble with of-platdata since it uses the
> U_BOOT_DEVICE() macro. With of-platdata the only devices permitted are
> those created by dtoc.
>
> Drop this option for now, until the driver can be corrected.

As I understand, of-platdata is only enabled in SPL. Is there a way to
limit imx_thermal drop to SPL? The thermal driver in not very useful in
SPL anyway, right?

Thanks,
baruch

> Signed-off-by: Simon Glass <sjg@chromium.org>
> ---
>
>  include/configs/mx6cuboxi.h | 2 --
>  1 file changed, 2 deletions(-)
>
> diff --git a/include/configs/mx6cuboxi.h b/include/configs/mx6cuboxi.h
> index cfab9a7fc02..55717c77ab3 100644
> --- a/include/configs/mx6cuboxi.h
> +++ b/include/configs/mx6cuboxi.h
> @@ -13,8 +13,6 @@
>  
>  #include "imx6_spl.h"
>  
> -#define CONFIG_IMX_THERMAL
> -
>  #define CONFIG_SYS_MALLOC_LEN		(10 * SZ_1M)
>  
>  /* MMC Configs */
Tom Rini Oct. 29, 2020, 3:19 p.m. UTC | #2
On Thu, Oct 29, 2020 at 07:14:55AM +0200, Baruch Siach wrote:
> Hi Simon,
> 
> Adding Walter to Cc.
> 
> On Thu, Oct 29 2020, Simon Glass wrote:
> > This feature is incompatble with of-platdata since it uses the
> > U_BOOT_DEVICE() macro. With of-platdata the only devices permitted are
> > those created by dtoc.
> >
> > Drop this option for now, until the driver can be corrected.
> 
> As I understand, of-platdata is only enabled in SPL. Is there a way to
> limit imx_thermal drop to SPL? The thermal driver in not very useful in
> SPL anyway, right?

Well, sigh, step one is to finish the migration to Kconfig for
IMX_THERMAL as it has a symbol, but it's still set in a ton of board
config files.  We only build thermal in SPL when SPL_THERMAL is set, so
I assume this is about trying to use of-platdata in U-Boot proper too,
to keep / further reduce the size of U-Boot itself to stay within size
limits.
Walter Lozano Oct. 29, 2020, 4:11 p.m. UTC | #3
On 29/10/20 12:19, Tom Rini wrote:
> On Thu, Oct 29, 2020 at 07:14:55AM +0200, Baruch Siach wrote:
>> Hi Simon,
>>
>> Adding Walter to Cc.
>>
>> On Thu, Oct 29 2020, Simon Glass wrote:
>>> This feature is incompatble with of-platdata since it uses the
>>> U_BOOT_DEVICE() macro. With of-platdata the only devices permitted are
>>> those created by dtoc.
>>>
>>> Drop this option for now, until the driver can be corrected.
>> As I understand, of-platdata is only enabled in SPL. Is there a way to
>> limit imx_thermal drop to SPL? The thermal driver in not very useful in
>> SPL anyway, right?

As you pointed of-platdata is intended for TPL/SPL to avoid the overhead 
of DTB and libraries. If this option is enabled and the driver does not 
support it, the device won't be created in TPL/SPL but is should on 
U-Boot. In order to limit the drop to SPL can CONFIG_SPL_BUILD be used?

Regarding the usefulness of im_thermal in SPL I can't comment.

> Well, sigh, step one is to finish the migration to Kconfig for
> IMX_THERMAL as it has a symbol, but it's still set in a ton of board
> config files.  We only build thermal in SPL when SPL_THERMAL is set, so
> I assume this is about trying to use of-platdata in U-Boot proper too,
> to keep / further reduce the size of U-Boot itself to stay within size
> limits.
>
Regards,

Walter
Tom Rini Oct. 29, 2020, 4:14 p.m. UTC | #4
On Thu, Oct 29, 2020 at 01:11:15PM -0300, Walter Lozano wrote:
> 
> On 29/10/20 12:19, Tom Rini wrote:
> > On Thu, Oct 29, 2020 at 07:14:55AM +0200, Baruch Siach wrote:
> > > Hi Simon,
> > > 
> > > Adding Walter to Cc.
> > > 
> > > On Thu, Oct 29 2020, Simon Glass wrote:
> > > > This feature is incompatble with of-platdata since it uses the
> > > > U_BOOT_DEVICE() macro. With of-platdata the only devices permitted are
> > > > those created by dtoc.
> > > > 
> > > > Drop this option for now, until the driver can be corrected.
> > > As I understand, of-platdata is only enabled in SPL. Is there a way to
> > > limit imx_thermal drop to SPL? The thermal driver in not very useful in
> > > SPL anyway, right?
> 
> As you pointed of-platdata is intended for TPL/SPL to avoid the overhead of
> DTB and libraries. If this option is enabled and the driver does not support
> it, the device won't be created in TPL/SPL but is should on U-Boot. In order
> to limit the drop to SPL can CONFIG_SPL_BUILD be used?
> 
> Regarding the usefulness of im_thermal in SPL I can't comment.
> 
> > Well, sigh, step one is to finish the migration to Kconfig for
> > IMX_THERMAL as it has a symbol, but it's still set in a ton of board
> > config files.  We only build thermal in SPL when SPL_THERMAL is set, so
> > I assume this is about trying to use of-platdata in U-Boot proper too,
> > to keep / further reduce the size of U-Boot itself to stay within size
> > limits.

Well, I suspect maybe part of the problem is that since the symbol
isn't migrated properly, it's not being not built when we don't need it.
I did the migration and queued up a build, I should have some answers
later today.
Simon Glass Oct. 29, 2020, 5:06 p.m. UTC | #5
Hi,

On Thu, 29 Oct 2020 at 10:15, Tom Rini <trini@konsulko.com> wrote:
>
> On Thu, Oct 29, 2020 at 01:11:15PM -0300, Walter Lozano wrote:
> >
> > On 29/10/20 12:19, Tom Rini wrote:
> > > On Thu, Oct 29, 2020 at 07:14:55AM +0200, Baruch Siach wrote:
> > > > Hi Simon,
> > > >
> > > > Adding Walter to Cc.
> > > >
> > > > On Thu, Oct 29 2020, Simon Glass wrote:
> > > > > This feature is incompatble with of-platdata since it uses the
> > > > > U_BOOT_DEVICE() macro. With of-platdata the only devices permitted are
> > > > > those created by dtoc.
> > > > >
> > > > > Drop this option for now, until the driver can be corrected.
> > > > As I understand, of-platdata is only enabled in SPL. Is there a way to
> > > > limit imx_thermal drop to SPL? The thermal driver in not very useful in
> > > > SPL anyway, right?
> >
> > As you pointed of-platdata is intended for TPL/SPL to avoid the overhead of
> > DTB and libraries. If this option is enabled and the driver does not support
> > it, the device won't be created in TPL/SPL but is should on U-Boot. In order
> > to limit the drop to SPL can CONFIG_SPL_BUILD be used?
> >
> > Regarding the usefulness of im_thermal in SPL I can't comment.
> >
> > > Well, sigh, step one is to finish the migration to Kconfig for
> > > IMX_THERMAL as it has a symbol, but it's still set in a ton of board
> > > config files.  We only build thermal in SPL when SPL_THERMAL is set, so
> > > I assume this is about trying to use of-platdata in U-Boot proper too,
> > > to keep / further reduce the size of U-Boot itself to stay within size
> > > limits.
>
> Well, I suspect maybe part of the problem is that since the symbol
> isn't migrated properly, it's not being not built when we don't need it.
> I did the migration and queued up a build, I should have some answers
> later today.

In the meantime I'll send a v2 patch which just disables the driver in SPL.

Regards,
Simon
diff mbox series

Patch

diff --git a/include/configs/mx6cuboxi.h b/include/configs/mx6cuboxi.h
index cfab9a7fc02..55717c77ab3 100644
--- a/include/configs/mx6cuboxi.h
+++ b/include/configs/mx6cuboxi.h
@@ -13,8 +13,6 @@ 
 
 #include "imx6_spl.h"
 
-#define CONFIG_IMX_THERMAL
-
 #define CONFIG_SYS_MALLOC_LEN		(10 * SZ_1M)
 
 /* MMC Configs */