[SRU][F][PATCH 09/19] ASoC: amd: add Renoir ACP PCI driver PM ops
Hui Wang
hui.wang at canonical.com
Thu May 28 02:10:53 UTC 2020
From: Vijendar Mukunda <Vijendar.Mukunda at amd.com>
BugLink: https://bugs.launchpad.net/bugs/1881046
Add Renoir ACP Pci driver pm ops.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda at amd.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
Link: https://lore.kernel.org/r/20200518171704.24999-10-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie at kernel.org>
(cherry picked from commit c346e768f92cd6dbed474adf2f5eb3c9763a8bfa
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git)
Signed-off-by: Hui Wang <hui.wang at canonical.com>
---
sound/soc/amd/renoir/rn-pci-acp3x.c | 46 +++++++++++++++++++++++++++++
sound/soc/amd/renoir/rn_acp3x.h | 2 ++
2 files changed, 48 insertions(+)
diff --git a/sound/soc/amd/renoir/rn-pci-acp3x.c b/sound/soc/amd/renoir/rn-pci-acp3x.c
index 362409ef0d85..71bfae644372 100644
--- a/sound/soc/amd/renoir/rn-pci-acp3x.c
+++ b/sound/soc/amd/renoir/rn-pci-acp3x.c
@@ -10,6 +10,7 @@
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
+#include <linux/pm_runtime.h>
#include "rn_acp3x.h"
@@ -233,6 +234,10 @@ static int snd_rn_acp_probe(struct pci_dev *pci,
ret = PTR_ERR(adata->pdev);
goto unregister_devs;
}
+ 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;
unregister_devs:
@@ -250,6 +255,42 @@ static int snd_rn_acp_probe(struct pci_dev *pci,
return ret;
}
+static int snd_rn_acp_suspend(struct device *dev)
+{
+ int ret;
+ struct acp_dev_data *adata;
+
+ adata = dev_get_drvdata(dev);
+ ret = rn_acp_deinit(adata->acp_base);
+ if (ret)
+ dev_err(dev, "ACP de-init failed\n");
+ else
+ dev_dbg(dev, "ACP de-initialized\n");
+
+ return 0;
+}
+
+static int snd_rn_acp_resume(struct device *dev)
+{
+ int ret;
+ struct acp_dev_data *adata;
+
+ adata = dev_get_drvdata(dev);
+ ret = rn_acp_init(adata->acp_base);
+ if (ret) {
+ dev_err(dev, "ACP init failed\n");
+ return ret;
+ }
+ return 0;
+}
+
+static const struct dev_pm_ops rn_acp_pm = {
+ .runtime_suspend = snd_rn_acp_suspend,
+ .runtime_resume = snd_rn_acp_resume,
+ .suspend = snd_rn_acp_suspend,
+ .resume = snd_rn_acp_resume,
+};
+
static void snd_rn_acp_remove(struct pci_dev *pci)
{
struct acp_dev_data *adata;
@@ -260,6 +301,8 @@ static void snd_rn_acp_remove(struct pci_dev *pci)
ret = rn_acp_deinit(adata->acp_base);
if (ret)
dev_err(&pci->dev, "ACP de-init failed\n");
+ pm_runtime_forbid(&pci->dev);
+ pm_runtime_get_noresume(&pci->dev);
pci_disable_msi(pci);
pci_release_regions(pci);
pci_disable_device(pci);
@@ -278,6 +321,9 @@ static struct pci_driver rn_acp_driver = {
.id_table = snd_rn_acp_ids,
.probe = snd_rn_acp_probe,
.remove = snd_rn_acp_remove,
+ .driver = {
+ .pm = &rn_acp_pm,
+ }
};
module_pci_driver(rn_acp_driver);
diff --git a/sound/soc/amd/renoir/rn_acp3x.h b/sound/soc/amd/renoir/rn_acp3x.h
index a4f654cf2df0..6e1888167fb3 100644
--- a/sound/soc/amd/renoir/rn_acp3x.h
+++ b/sound/soc/amd/renoir/rn_acp3x.h
@@ -40,6 +40,8 @@
#define TWO_CH 0x02
#define DELAY_US 5
#define ACP_COUNTER 20000
+/* time in ms for runtime suspend delay */
+#define ACP_SUSPEND_DELAY_MS 2000
#define ACP_SRAM_PTE_OFFSET 0x02050000
#define PAGE_SIZE_4K_ENABLE 0x2
--
2.17.1
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