[PATCH] ASoC: airoha: Fix sparse warning for AN7581 AFE PCM

From: Christian Marangi

Date: Fri Sep 25 2026 - 13:05:56 EST


Fix sparse warning reported by kernel bot:

sparse warnings: (new ones prefixed by >>)
>> sound/soc/mediatek/an7581/an7581-afe-pcm.c:144:30: sparse: sparse: symbol 'an7581_afe_fe_ops' was not declared. Should it be static?
>> sound/soc/mediatek/an7581/an7581-afe-pcm.c:419:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *base @@ got void [noderef] __iomem * @@
sound/soc/mediatek/an7581/an7581-afe-pcm.c:419:14: sparse: expected void *base
sound/soc/mediatek/an7581/an7581-afe-pcm.c:419:14: sparse: got void [noderef] __iomem *
>> sound/soc/mediatek/an7581/an7581-afe-pcm.c:439:42: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected void [noderef] __iomem *regs @@ got void *base @@
sound/soc/mediatek/an7581/an7581-afe-pcm.c:439:42: sparse: expected void [noderef] __iomem *regs

Make an7581_afe_fe_ops static and add __iomem for the base from
devm_platform_ioremap_resource.

Fixes: 4974ffa0d6c2 ("ASoC: airoha: Add AFE driver for Airoha AN7581")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202609242059.t4FlJzOz-lkp@xxxxxxxxx/
Signed-off-by: Christian Marangi <ansuelsmth@xxxxxxxxx>
---
sound/soc/mediatek/an7581/an7581-afe-pcm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/mediatek/an7581/an7581-afe-pcm.c b/sound/soc/mediatek/an7581/an7581-afe-pcm.c
index a1d742362538..d47edb630452 100644
--- a/sound/soc/mediatek/an7581/an7581-afe-pcm.c
+++ b/sound/soc/mediatek/an7581/an7581-afe-pcm.c
@@ -141,7 +141,7 @@ static int an7581_afe_fe_startup(struct snd_pcm_substream *substream, struct snd
return ret;
}

-const struct snd_soc_dai_ops an7581_afe_fe_ops = {
+static const struct snd_soc_dai_ops an7581_afe_fe_ops = {
.startup = an7581_afe_fe_startup,
.shutdown = mtk_afe_fe_shutdown,
.hw_params = mtk_afe_fe_hw_params,
@@ -375,7 +375,7 @@ static int an7581_afe_pcm_dev_probe(struct platform_device *pdev)
struct reset_control *reset;
struct mtk_base_afe *afe;
int i, irq_id, ret;
- void *base;
+ void __iomem *base;

afe = devm_kzalloc(dev, sizeof(*afe), GFP_KERNEL);
if (!afe)
--
2.55.0