linux-kernel - [PATCH 5/6] ASoC: fsl_audmix: Don't use devm_regmap_init_mmio

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Date:   Wed, 24 Mar 2021 17:58:47 +0800
From:   Shengjiu Wang <shengjiu.wang@....com>
To:     timur@...nel.org, nicoleotsuka@...il.com, Xiubo.Lee@...il.com,
        festevam@...il.com, broonie@...nel.org, perex@...ex.cz,
        tiwai@...e.com, alsa-devel@...a-project.org
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH 5/6] ASoC: fsl_audmix: Don't use devm_regmap_init_mmio_clk

When there is power domain bind with ipg clock,

The call flow:
devm_regmap_init_mmio_clk
   - clk_prepare()
       - clk_pm_runtime_get()

cause the power domain of clock always be enabled after
regmap_init(). which impact the power consumption.

So use devm_regmap_init_mmio instead of
devm_regmap_init_mmio_clk,but explicitly enable
clock when it is used.

Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
---
 sound/soc/fsl/fsl_audmix.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/soc/fsl/fsl_audmix.c b/sound/soc/fsl/fsl_audmix.c
index 8dc44dec7956..f931288e256c 100644
--- a/sound/soc/fsl/fsl_audmix.c
+++ b/sound/soc/fsl/fsl_audmix.c
@@ -476,8 +476,7 @@ static int fsl_audmix_probe(struct platform_device *pdev)
 	if (IS_ERR(regs))
 		return PTR_ERR(regs);
 
-	priv->regmap = devm_regmap_init_mmio_clk(dev, "ipg", regs,
-						 &fsl_audmix_regmap_config);
+	priv->regmap = devm_regmap_init_mmio(dev, regs, &fsl_audmix_regmap_config);
 	if (IS_ERR(priv->regmap)) {
 		dev_err(dev, "failed to init regmap\n");
 		return PTR_ERR(priv->regmap);
-- 
2.27.0