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From:   Baolin Wang <baolin.wang7@gmail.com>
To:     lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz,
        tiwai@suse.com
Cc:     orsonzhai@gmail.com, zhang.lyra@gmail.com, baolin.wang7@gmail.com,
        alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org
Subject: [PATCH] ASoC: sprd: Allow the MCDT driver to build into modules
Date:   Thu,  5 Mar 2020 14:00:53 +0800
Message-Id: <9306f2b99641136653ae4fe6cf9e859b7f698f77.1583387748.git.baolin.wang7@gmail.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Change the config to 'tristate' for MCDT driver to allow it to build into
modules, as well as changing to use IS_ENABLED() to validate if need supply
dummy functions when building the MCDT driver as a module.

Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
---
 sound/soc/sprd/Kconfig     | 2 +-
 sound/soc/sprd/sprd-mcdt.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/sprd/Kconfig b/sound/soc/sprd/Kconfig
index 5474fd3..5e0ac82 100644
--- a/sound/soc/sprd/Kconfig
+++ b/sound/soc/sprd/Kconfig
@@ -8,7 +8,7 @@ config SND_SOC_SPRD
 	  the Spreadtrum SoCs' Audio interfaces.
 
 config SND_SOC_SPRD_MCDT
-	bool "Spreadtrum multi-channel data transfer support"
+	tristate "Spreadtrum multi-channel data transfer support"
 	depends on SND_SOC_SPRD
 	help
 	  Say y here to enable multi-channel data transfer support. It
diff --git a/sound/soc/sprd/sprd-mcdt.h b/sound/soc/sprd/sprd-mcdt.h
index 9cc7e207..679e3af 100644
--- a/sound/soc/sprd/sprd-mcdt.h
+++ b/sound/soc/sprd/sprd-mcdt.h
@@ -48,7 +48,7 @@ struct sprd_mcdt_chan {
 	struct list_head list;
 };
 
-#ifdef CONFIG_SND_SOC_SPRD_MCDT
+#if IS_ENABLED(CONFIG_SND_SOC_SPRD_MCDT)
 struct sprd_mcdt_chan *sprd_mcdt_request_chan(u8 channel,
 					      enum sprd_mcdt_channel_type type);
 void sprd_mcdt_free_chan(struct sprd_mcdt_chan *chan);
-- 
1.9.1