layerscape: add patches-5.4

[openwrt/staging/wigyori.git] / target / linux / layerscape / patches-5.4 / 801-audio-0061-ASoC-fsl_sai-support-multi-power-domain.patch

diff --git a/target/linux/layerscape/patches-5.4/801-audio-0061-ASoC-fsl_sai-support-multi-power-domain.patch b/target/linux/layerscape/patches-5.4/801-audio-0061-ASoC-fsl_sai-support-multi-power-domain.patch
new file mode 100644 (file)
index 0000000..63c77db
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/801-audio-0061-ASoC-fsl_sai-support-multi-power-domain.patch
@@ -0,0 +1,55 @@
+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;