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

[Christian Marangi <ansuelsmth@gmail.com>]

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@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202609242059.t4FlJzOz-lkp@intel.com/
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
 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