ASoC: meson: aiu: fix function pointer type mismatch

clang-16 warns about casting functions to incompatible types, as is done
here to call clk_disable_unprepare:

sound/soc/meson/aiu.c:243:12: error: cast from 'void (*)(struct clk *)' to 'void (*)(void *)' converts to incompatible function type [-Werror,-Wcast-function-type-strict]
  243 |                                        (void(*)(void *))clk_disable_unprepare,

The pattern of getting, enabling and setting a disable callback for a
clock can be replaced with devm_clk_get_enabled(), which also fixes
this warning.

Fixes: 6ae9ca9c ("ASoC: meson: aiu: add i2s and spdif support")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Justin Stitt <justinstitt@google.com>
Link: https://msgid.link/r/20240213215807.3326688-2-jbrunet@baylibre.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/meson/aiu.c

@@ -212,11 +212,12 @@ static const char * const aiu_spdif_ids[] = {
 static int aiu_clk_get(struct device *dev)
 {
 	struct aiu *aiu = dev_get_drvdata(dev);
+	struct clk *pclk;
 	int ret;
 
-	aiu->pclk = devm_clk_get(dev, "pclk");
-	if (IS_ERR(aiu->pclk))
-		return dev_err_probe(dev, PTR_ERR(aiu->pclk), "Can't get the aiu pclk\n");
+	pclk = devm_clk_get_enabled(dev, "pclk");
+	if (IS_ERR(pclk))
+		return dev_err_probe(dev, PTR_ERR(pclk), "Can't get the aiu pclk\n");
 
 	aiu->spdif_mclk = devm_clk_get(dev, "spdif_mclk");
 	if (IS_ERR(aiu->spdif_mclk))
@@ -233,18 +234,6 @@ static int aiu_clk_get(struct device *dev)
 	if (ret)
 		return dev_err_probe(dev, ret, "Can't get the spdif clocks\n");
 
-	ret = clk_prepare_enable(aiu->pclk);
-	if (ret) {
-		dev_err(dev, "peripheral clock enable failed\n");
-		return ret;
-	}
-
-	ret = devm_add_action_or_reset(dev,
-				       (void(*)(void *))clk_disable_unprepare,
-				       aiu->pclk);
-	if (ret)
-		dev_err(dev, "failed to add reset action on pclk");
-
 	return ret;
 }
 

sound/soc/meson/aiu.h

@@ -33,7 +33,6 @@ struct aiu_platform_data {
 };
 
 struct aiu {
-	struct clk *pclk;
 	struct clk *spdif_mclk;
 	struct aiu_interface i2s;
 	struct aiu_interface spdif;