| From f11933205182a3da44e7f99d899dd27adafcb6d5 Mon Sep 17 00:00:00 2001 |
| From: Shengjiu Wang <shengjiu.wang@nxp.com> |
| Date: Tue, 29 Jan 2019 14:51:24 +0800 |
| Subject: [PATCH] ASoC: fsl_sai: support multi power domain |
| |
| support multi power domain |
| |
| Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> |
| --- |
| sound/soc/fsl/fsl_sai.c | 20 ++++++++++++++++++++ |
| 1 file changed, 20 insertions(+) |
| |
| --- a/sound/soc/fsl/fsl_sai.c |
| +++ b/sound/soc/fsl/fsl_sai.c |
| @@ -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 |
| 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 |
| } |
| } |
| |
| + 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; |