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@amd.com --- 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 41ddb491601b..41aa24986a1f 100644 --- a/drivers/soundwire/amd_manager.c +++ b/drivers/soundwire/amd_manager.c @@ -1212,6 +1212,7 @@ 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", @@ -1236,6 +1237,14 @@ 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,