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ASoC: fsl_sai: support multi power domain 

support multi power domain

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
5.4-rM2-2.2.x-imx-squashed
Shengjiu Wang 2019-01-29 14:51:24 +08:00 committed by Dong Aisheng
parent c43c341752
commit 53915e7ea9
1 changed files with 20 additions and 0 deletions
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20
sound/soc/fsl/fsl_sai.c
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@ -16,6 +16,7 @@
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/pm_qos.h>
#include <linux/pm_domain.h>
#include <sound/core.h>
#include <sound/dmaengine_pcm.h>
#include <sound/pcm_params.h>
@ -1357,6 +1358,7 @@ static int fsl_sai_probe(struct platform_device *pdev)
int index;
struct regmap_config fsl_sai_regmap_config = fsl_sai_v2_regmap_config;
unsigned long irqflags = 0;
int num_domains = 0;
sai = devm_kzalloc(&pdev->dev, sizeof(*sai), GFP_KERNEL);
if (!sai)
@ -1409,6 +1411,24 @@ static int fsl_sai_probe(struct platform_device *pdev)
}
}
num_domains = of_count_phandle_with_args(np, "power-domains",
"#power-domain-cells");
for (i = 0; i < num_domains; i++) {
struct device *pd_dev;
struct device_link *link;
pd_dev = dev_pm_domain_attach_by_id(&pdev->dev, i);
if (IS_ERR(pd_dev))
return PTR_ERR(pd_dev);
link = device_link_add(&pdev->dev, pd_dev,
DL_FLAG_STATELESS |
DL_FLAG_PM_RUNTIME |
DL_FLAG_RPM_ACTIVE);
if (IS_ERR(link))
return PTR_ERR(link);
}
sai->pll8k_clk = devm_clk_get(&pdev->dev, "pll8k");
if (IS_ERR(sai->pll8k_clk))
sai->pll8k_clk = NULL;