Commit 5818ed36 authored by Vijendar Mukunda's avatar Vijendar Mukunda Committed by Vinod Koul
Browse files

soundwire: amd: set ACP_PME_EN during runtime suspend sequence 



Set ACP_PME_EN to 1 during runtime suspend sequence as per design flow
for ACP7.0 & ACP7.1 platforms.

Signed-off-by: default avatarVijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20250207065841.4718-6-Vijendar.Mukunda@amd.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 829c3e1c

drivers/soundwire/amd_manager.c

+9 −0
Original line number Diff line number Diff line
@@ -1211,6 +1211,7 @@ 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",
@@ -1235,6 +1236,14 @@ 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;

}

drivers/soundwire/amd_manager.h

+1 −0
Original line number Diff line number Diff line
@@ -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,