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Date: Thu, 21 Jul 2022 11:40:01 +0530
From: syed sabakareem <Syed.SabaKareem@....com>
To: <broonie@...nel.org>, <alsa-devel@...a-project.org>
CC: <Alexander.Deucher@....com>, <Basavaraj.Hiregoudar@....com>,
<Sunil-kumar.Dommati@....com>, <vijendar.mukunda@....com>,
Syed Saba Kareem <Syed.SabaKareem@....com>,
Vijendar Mukunda <Vijendar.Mukunda@....com>,
"Liam Girdwood" <lgirdwood@...il.com>,
Jaroslav Kysela <perex@...ex.cz>,
"Takashi Iwai" <tiwai@...e.com>,
open list <linux-kernel@...r.kernel.org>
Subject: [PATCH 4/5] ASoC: amd: add RPL Platform pci driver pm-ops
From: Syed Saba Kareem <Syed.SabaKareem@....com>
Add RPL Platform ACP PCI driver pm ops.
Signed-off-by: Syed Saba Kareem <Syed.SabaKareem@....com>
Reviewed-by: Vijendar Mukunda <Vijendar.Mukunda@....com>
---
sound/soc/amd/rpl/rpl-pci-acp6x.c | 40 +++++++++++++++++++++++++++++++
sound/soc/amd/rpl/rpl_acp6x.h | 15 ++++++++++++
2 files changed, 55 insertions(+)
diff --git a/sound/soc/amd/rpl/rpl-pci-acp6x.c b/sound/soc/amd/rpl/rpl-pci-acp6x.c
index 71ae90a00f36..a8e548ed991b 100644
--- a/sound/soc/amd/rpl/rpl-pci-acp6x.c
+++ b/sound/soc/amd/rpl/rpl-pci-acp6x.c
@@ -10,6 +10,7 @@
#include <linux/io.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
#include "rpl_acp6x.h"
@@ -144,6 +145,11 @@ static int snd_rpl_probe(struct pci_dev *pci,
ret = rpl_init(adata->acp6x_base);
if (ret)
goto release_regions;
+ pm_runtime_set_autosuspend_delay(&pci->dev, ACP_SUSPEND_DELAY_MS);
+ pm_runtime_use_autosuspend(&pci->dev);
+ pm_runtime_put_noidle(&pci->dev);
+ pm_runtime_allow(&pci->dev);
+
return 0;
release_regions:
pci_release_regions(pci);
@@ -153,6 +159,35 @@ static int snd_rpl_probe(struct pci_dev *pci,
return ret;
}
+static int __maybe_unused snd_rpl_suspend(struct device *dev)
+{
+ struct rpl_dev_data *adata;
+ int ret;
+
+ adata = dev_get_drvdata(dev);
+ ret = rpl_deinit(adata->acp6x_base);
+ if (ret)
+ dev_err(dev, "ACP de-init failed\n");
+ return ret;
+}
+
+static int __maybe_unused snd_rpl_resume(struct device *dev)
+{
+ struct rpl_dev_data *adata;
+ int ret;
+
+ adata = dev_get_drvdata(dev);
+ ret = rpl_init(adata->acp6x_base);
+ if (ret)
+ dev_err(dev, "ACP init failed\n");
+ return ret;
+}
+
+static const struct dev_pm_ops rpl_pm = {
+ SET_RUNTIME_PM_OPS(snd_rpl_suspend, snd_rpl_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(snd_rpl_suspend, snd_rpl_resume)
+};
+
static void snd_rpl_remove(struct pci_dev *pci)
{
struct rpl_dev_data *adata;
@@ -162,6 +197,8 @@ static void snd_rpl_remove(struct pci_dev *pci)
ret = rpl_deinit(adata->acp6x_base);
if (ret)
dev_err(&pci->dev, "ACP de-init failed\n");
+ pm_runtime_forbid(&pci->dev);
+ pm_runtime_get_noresume(&pci->dev);
pci_release_regions(pci);
pci_disable_device(pci);
}
@@ -179,6 +216,9 @@ static struct pci_driver rpl_acp6x_driver = {
.id_table = snd_rpl_ids,
.probe = snd_rpl_probe,
.remove = snd_rpl_remove,
+ .driver = {
+ .pm = &rpl_pm,
+ }
};
module_pci_driver(rpl_acp6x_driver);
diff --git a/sound/soc/amd/rpl/rpl_acp6x.h b/sound/soc/amd/rpl/rpl_acp6x.h
index 5de19d5c892e..f5816a33632e 100644
--- a/sound/soc/amd/rpl/rpl_acp6x.h
+++ b/sound/soc/amd/rpl/rpl_acp6x.h
@@ -10,6 +10,21 @@
#define ACP_DEVICE_ID 0x15E2
#define ACP6x_PHY_BASE_ADDRESS 0x1240000
+#define ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK 0x00010001
+#define ACP_PGFSM_CNTL_POWER_ON_MASK 1
+#define ACP_PGFSM_CNTL_POWER_OFF_MASK 0
+#define ACP_PGFSM_STATUS_MASK 3
+#define ACP_POWERED_ON 0
+#define ACP_POWER_ON_IN_PROGRESS 1
+#define ACP_POWERED_OFF 2
+#define ACP_POWER_OFF_IN_PROGRESS 3
+
+#define DELAY_US 5
+#define ACP_COUNTER 20000
+
+/* time in ms for runtime suspend delay */
+#define ACP_SUSPEND_DELAY_MS 2000
+
static inline u32 rpl_acp_readl(void __iomem *base_addr)
{
return readl(base_addr - ACP6x_PHY_BASE_ADDRESS);
--
2.25.1
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