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SubjectRe: [PATCH] ASoC: SOF: sort out Kconfig, again
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>>> Thanks Arnd, do you mind sharing your config?
>>
>> https://pastebin.com/HRX5xi3R
>
> will give it a try, thanks!
>
>>> We noticed last week that
>>> there's a depend/select confusion might be simpler to fix, see
>>> https://github.com/thesofproject/linux/pull/2047/commits
>>>
>>> If I look at the first line I see a IMX_DSP=n which looks exactly like
>>> what we wanted to fix.
>>
>> Yes, I think that fix addresses the build warning as well, but looking
>> more closely I don't think it's what you want: If you do this on
>> a config that has the IMX_DSP disabled, it would appear to the
>> user that you have enabled the drivers, but the actual code is still
>> disabled.
>
> Are you sure? we added a select IMX_DSP, so not sure how it can be
> disabled?

I just tested Arnd's config with the patch we came up with for SOF
(attached) and it makes the unmet dependency go away and builds fine.
the problem is really using select IMX_DSP if it can be disabled by
something else. My proposal looks simpler but I will agree it's not
necessarily super elegant to move the dependency on IMX_BOX into SOF, so
no sustained objection from me on Arnd's proposal.

Daniel, this is your part of SOF, please chime in.

Thanks
-Pierre


From 208e61ae18d3a4aa93ffa73db01c4e3c24a4979f Mon Sep 17 00:00:00 2001
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Date: Wed, 22 Apr 2020 06:21:56 -0500
Subject: [PATCH] ASoC: SOF: imx: fix depends/select IMX_DSP confusion

The two IMX targets don't use depends/select in a consistent way and
there's a potential for an unmet dependency. Move the dependency check
to a higher level and select IMX_DSP to avoid builtin/module issues.

Fixes: afb93d716533dd ("ASoC: SOF: imx: Add i.MX8M HW support")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
---
sound/soc/sof/imx/Kconfig | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/soc/sof/imx/Kconfig b/sound/soc/sof/imx/Kconfig
index f76660e91382..a11ecc1d56db 100644
--- a/sound/soc/sof/imx/Kconfig
+++ b/sound/soc/sof/imx/Kconfig
@@ -21,7 +21,7 @@ config SND_SOC_SOF_IMX_OF

config SND_SOC_SOF_IMX8_SUPPORT
bool "SOF support for i.MX8"
- depends on IMX_SCU
+ depends on IMX_SCU && IMX_MBOX
help
This adds support for Sound Open Firmware for NXP i.MX8 platforms
Say Y if you have such a device.
@@ -29,7 +29,6 @@ config SND_SOC_SOF_IMX8_SUPPORT

config SND_SOC_SOF_IMX8
tristate
- depends on IMX_SCU
select IMX_DSP
help
This option is not user-selectable but automagically handled by
@@ -37,6 +36,7 @@ config SND_SOC_SOF_IMX8

config SND_SOC_SOF_IMX8M_SUPPORT
bool "SOF support for i.MX8M"
+ depends on IMX_MBOX
help
This adds support for Sound Open Firmware for NXP i.MX8M platforms
Say Y if you have such a device.
@@ -44,7 +44,7 @@ config SND_SOC_SOF_IMX8M_SUPPORT

config SND_SOC_SOF_IMX8M
tristate
- depends on IMX_DSP
+ select IMX_DSP
help
This option is not user-selectable but automagically handled by
'select' statements at a higher level
--
2.20.1
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