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Message-ID: <20240408180229.3287220-1-Vijendar.Mukunda@amd.com>
Date: Mon, 8 Apr 2024 23:32:26 +0530
From: Vijendar Mukunda <Vijendar.Mukunda@....com>
To: <broonie@...nel.org>
CC: <alsa-devel@...a-project.org>, <Sunil-kumar.Dommati@....com>,
	<Basavaraj.Hiregoudar@....com>, <venkataprasad.potturu@....com>, "Vijendar
 Mukunda" <Vijendar.Mukunda@....com>, kernel test robot <lkp@...el.com>, "Liam
 Girdwood" <lgirdwood@...il.com>, Jaroslav Kysela <perex@...ex.cz>, "Takashi
 Iwai" <tiwai@...e.com>, Arnd Bergmann <arnd@...db.de>, Lucas Tanure
	<lucas.tanure@...labora.com>, Cristian Ciocaltea
	<cristian.ciocaltea@...labora.com>, Syed Saba Kareem
	<Syed.SabaKareem@....com>, "open list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER
 MANAGEM..." <linux-sound@...r.kernel.org>, open list
	<linux-kernel@...r.kernel.org>
Subject: [PATCH] ASoC: amd: fix for soundwire build dependencies for legacy stack

The SND_SOC_AMD_SOUNDWIRE Kconfig symbol has build dependency on
SOUNDWIRE_AMD. It gets it wrong for a configuration involving
SND_SOC_AMD_SOUNDWIRE_LINK_BASELINE=y,SND_SOC_AMD_PS=y and SOUNDWIRE_AMD=m,
which results in a link failure:

ld: vmlinux.o: in function `amd_sdw_probe':
>> sound/soc/amd/ps/pci-ps.c:271:(.text+0x1d51eff):
	undefined reference to `sdw_amd_probe'
ld: vmlinux.o: in function `acp63_sdw_machine_select':
>> sound/soc/amd/ps/pci-ps.c:294:(.text+0x1d525d5):
	undefined reference to `sdw_amd_get_slave_info'
ld: vmlinux.o: in function `amd_sdw_exit':
>> sound/soc/amd/ps/pci-ps.c:280:(.text+0x1d538ce):
	undefined reference to `sdw_amd_exit'

Add a top level check config that forbids any of the AMD ACP drivers
with version >= 6.3 from being built-in with CONFIG_SOUNDWIRE_AMD=m.
Move SND_AMD_ACP_CONFIG common dependency config to
SND_SOC_AMD_ACP63_TOPLEVEL config.

Reported-by: kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202404061257.khJml82D-lkp@intel.com/
Fixes: a806793f231e ("ASoC: amd: simplify soundwire dependencies for legacy stack")
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@....com>
---
 sound/soc/amd/Kconfig | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/sound/soc/amd/Kconfig b/sound/soc/amd/Kconfig
index 3508f5a96b75..6dec44f516c1 100644
--- a/sound/soc/amd/Kconfig
+++ b/sound/soc/amd/Kconfig
@@ -132,6 +132,19 @@ config SND_SOC_AMD_RPL_ACP6x
           Say m if you have such a device.
           If unsure select "N".
 
+config SND_SOC_AMD_ACP63_TOPLEVEL
+	tristate "support for AMD platforms with ACP version >= 6.3"
+	default SND_AMD_ACP_CONFIG
+	depends on SND_AMD_ACP_CONFIG
+	depends on SOUNDWIRE_AMD || !SOUNDWIRE_AMD
+	depends on X86 || COMPILE_TEST
+	help
+	  This adds support for AMD platforms with ACP version >= 6.3.
+	  Say Y if you have such a device.
+	  If unsure select "N".
+
+if SND_SOC_AMD_ACP63_TOPLEVEL
+
 config SND_SOC_AMD_SOUNDWIRE_LINK_BASELINE
 	tristate
 	select SND_AMD_SOUNDWIRE_ACPI if ACPI
@@ -149,7 +162,6 @@ config SND_SOC_AMD_SOUNDWIRE
 
 config SND_SOC_AMD_PS
         tristate "AMD Audio Coprocessor-v6.3 Pink Sardine support"
-	select SND_AMD_ACP_CONFIG
 	select SND_SOC_AMD_SOUNDWIRE_LINK_BASELINE
         depends on X86 && PCI && ACPI
         help
@@ -170,3 +182,5 @@ config SND_SOC_AMD_PS_MACH
           DMIC can be connected directly to ACP IP.
           Say m if you have such a device.
           If unsure select "N".
+
+endif
-- 
2.34.1


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