56 lines
1.6 KiB
Diff
56 lines
1.6 KiB
Diff
From f11933205182a3da44e7f99d899dd27adafcb6d5 Mon Sep 17 00:00:00 2001
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From: Shengjiu Wang <shengjiu.wang@nxp.com>
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Date: Tue, 29 Jan 2019 14:51:24 +0800
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Subject: [PATCH] ASoC: fsl_sai: support multi power domain
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support multi power domain
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Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
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---
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sound/soc/fsl/fsl_sai.c | 20 ++++++++++++++++++++
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1 file changed, 20 insertions(+)
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--- a/sound/soc/fsl/fsl_sai.c
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+++ b/sound/soc/fsl/fsl_sai.c
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@@ -16,6 +16,7 @@
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#include <linux/slab.h>
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#include <linux/time.h>
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#include <linux/pm_qos.h>
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+#include <linux/pm_domain.h>
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#include <sound/core.h>
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#include <sound/dmaengine_pcm.h>
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#include <sound/pcm_params.h>
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@@ -1357,6 +1358,7 @@ static int fsl_sai_probe(struct platform
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int index;
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struct regmap_config fsl_sai_regmap_config = fsl_sai_v2_regmap_config;
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unsigned long irqflags = 0;
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+ int num_domains = 0;
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sai = devm_kzalloc(&pdev->dev, sizeof(*sai), GFP_KERNEL);
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if (!sai)
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@@ -1409,6 +1411,24 @@ static int fsl_sai_probe(struct platform
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}
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}
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+ num_domains = of_count_phandle_with_args(np, "power-domains",
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+ "#power-domain-cells");
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+ for (i = 0; i < num_domains; i++) {
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+ struct device *pd_dev;
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+ struct device_link *link;
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+
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+ pd_dev = dev_pm_domain_attach_by_id(&pdev->dev, i);
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+ if (IS_ERR(pd_dev))
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+ return PTR_ERR(pd_dev);
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+
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+ link = device_link_add(&pdev->dev, pd_dev,
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+ DL_FLAG_STATELESS |
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+ DL_FLAG_PM_RUNTIME |
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+ DL_FLAG_RPM_ACTIVE);
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+ if (IS_ERR(link))
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+ return PTR_ERR(link);
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+ }
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+
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sai->pll8k_clk = devm_clk_get(&pdev->dev, "pll8k");
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if (IS_ERR(sai->pll8k_clk))
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sai->pll8k_clk = NULL;
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