From: Keyon Jie <yang.jie@xxxxxxxxxxxxxxx>
The configuration for D0ix in FW is platform specific, let's do this and
send IPC in the platform set_power_state() ops.
Signed-off-by: Keyon Jie <yang.jie@xxxxxxxxxxxxxxx>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
---
sound/soc/sof/intel/hda-dsp.c | 32 +++++++++++++++++++++++++++++++-
1 file changed, 31 insertions(+), 1 deletion(-)
diff --git a/sound/soc/sof/intel/hda-dsp.c b/sound/soc/sof/intel/hda-dsp.c
index 936361bd25e9..b5070409a5e3 100644
--- a/sound/soc/sof/intel/hda-dsp.c
+++ b/sound/soc/sof/intel/hda-dsp.c
@@ -19,6 +19,7 @@
#include <sound/hda_register.h>
#include "../ops.h"
#include "hda.h"
+#include "hda-ipc.h"
/*
* DSP Core control.
@@ -319,10 +320,28 @@ static int hda_dsp_wait_d0i3c_done(struct snd_sof_dev *sdev, int retry)
return 0;
}
+static int hda_dsp_send_pm_gate_ipc(struct snd_sof_dev *sdev, u32 flags)
+{
+ struct sof_ipc_pm_gate pm_gate;
+ struct sof_ipc_reply reply;
+
+ memset(&pm_gate, 0, sizeof(pm_gate));
+
+ /* configure pm_gate ipc message */
+ pm_gate.hdr.size = sizeof(pm_gate);
+ pm_gate.hdr.cmd = SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_GATE;
+ pm_gate.flags = flags;
+
+ /* send pm_gate ipc to dsp */
+ return sof_ipc_tx_message(sdev->ipc, pm_gate.hdr.cmd, &pm_gate,
+ sizeof(pm_gate), &reply, sizeof(reply));
+}
+
int hda_dsp_set_power_state(struct snd_sof_dev *sdev,
enum sof_d0_substate d0_substate)
{
struct hdac_bus *bus = sof_to_bus(sdev);
+ u32 flags;
int ret;
u8 value;
@@ -347,7 +366,18 @@ int hda_dsp_set_power_state(struct snd_sof_dev *sdev,
dev_vdbg(bus->dev, "D0I3C updated, register = 0x%x\n",
snd_hdac_chip_readb(bus, VS_D0I3C));
- return 0;
+ if (d0_substate == SOF_DSP_D0I0)
+ flags = HDA_PM_PPG;/* prevent power gating in D0 */
+ else
+ flags = HDA_PM_NO_DMA_TRACE;/* disable DMA trace in D0I3*/
+
+ /* sending pm_gate IPC */
+ ret = hda_dsp_send_pm_gate_ipc(sdev, flags);
+ if (ret < 0)
+ dev_err(sdev->dev,
+ "error: PM_GATE ipc error %d\n", ret);
+
+ return ret;
}
static int hda_suspend(struct snd_sof_dev *sdev, bool runtime_suspend)
--
2.20.1
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