Set ACP_PME_EN to 1 during runtime suspend sequence as per design flow
for ACP7.0 & ACP7.1 platforms.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@xxxxxxx>
---
drivers/soundwire/amd_manager.c | 9 +++++++++
drivers/soundwire/amd_manager.h | 1 +
2 files changed, 10 insertions(+)
diff --git a/drivers/soundwire/amd_manager.c b/drivers/soundwire/amd_manager.c
index 42d553878e91..03c9e15dce5b 100644
--- a/drivers/soundwire/amd_manager.c
+++ b/drivers/soundwire/amd_manager.c
@@ -1215,6 +1215,7 @@ static int __maybe_unused amd_suspend_runtime(struct device *dev)
struct amd_sdw_manager *amd_manager = dev_get_drvdata(dev);
struct sdw_bus *bus = &amd_manager->bus;
int ret;
+ u32 val;
if (bus->prop.hw_disabled) {
dev_dbg(bus->dev, "SoundWire manager %d is disabled,\n",
@@ -1239,6 +1240,14 @@ static int __maybe_unused amd_suspend_runtime(struct device *dev)
ret = amd_sdw_set_device_state(amd_manager, AMD_SDW_DEVICE_STATE_D3);
if (ret)
return ret;
+ if (amd_manager->wake_en_mask) {
+ val = readl(amd_manager->acp_mmio + ACP_PME_EN);
+ if (!val) {
+ writel(1, amd_manager->acp_mmio + ACP_PME_EN);
+ val = readl(amd_manager->acp_mmio + ACP_PME_EN);
+ dev_dbg(amd_manager->dev, "ACP_PME_EN:0x%x\n", val);
+ }
+ }
}
return 0;
}
diff --git a/drivers/soundwire/amd_manager.h b/drivers/soundwire/amd_manager.h
index 8430f279d88e..1d5e94371f81 100644
--- a/drivers/soundwire/amd_manager.h
+++ b/drivers/soundwire/amd_manager.h
@@ -199,6 +199,7 @@
#define AMD_SDW1_DEVICE_STATE_MASK GENMASK(3, 2)
#define AMD_SDW_DEVICE_STATE_D0 0
#define AMD_SDW_DEVICE_STATE_D3 3
+#define ACP_PME_EN 0x0001400
static u32 amd_sdw_freq_tbl[AMD_SDW_MAX_FREQ_NUM] = {
AMD_SDW_DEFAULT_CLK_FREQ,
--
2.34.1
