HDA_DSP_REG_HIPCCTL_BUSY | HDA_DSP_REG_HIPCCTL_DONE, 0);
}
+static int hda_dsp_wait_d0i3c_done(struct snd_sof_dev *sdev, int retry)
+{
+ struct hdac_bus *bus = sof_to_bus(sdev);
+
+ while (snd_hdac_chip_readb(bus, VS_D0I3C) & SOF_HDA_VS_D0I3C_CIP) {
+ if (!retry--)
+ return -ETIMEDOUT;
+ usleep_range(10, 15);
+ }
+
+ return 0;
+}
+
+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);
+ int retry = 50;
+ int ret;
+ u8 value;
+
+ /* Write to D0I3C after Command-In-Progress bit is cleared */
+ ret = hda_dsp_wait_d0i3c_done(sdev, retry);
+ if (ret < 0) {
+ dev_err(bus->dev, "CIP timeout before update D0I3C!\n");
+ return ret;
+ }
+
+ /* Update D0I3C register */
+ value = d0_substate == SOF_DSP_D0I3 ? SOF_HDA_VS_D0I3C_I3 : 0;
+ snd_hdac_chip_updateb(bus, VS_D0I3C, SOF_HDA_VS_D0I3C_I3, value);
+
+ /* Wait for cmd in progress to be cleared before exiting the function */
+ retry = 50;
+ ret = hda_dsp_wait_d0i3c_done(sdev, retry);
+ if (ret < 0) {
+ dev_err(bus->dev, "CIP timeout after D0I3C updated!\n");
+ return ret;
+ }
+
+ dev_vdbg(bus->dev, "D0I3C updated, register = 0x%x\n",
+ snd_hdac_chip_readb(bus, VS_D0I3C));
+
+ return 0;
+}
+
static int hda_suspend(struct snd_sof_dev *sdev, bool runtime_suspend)
{
struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
#define SOF_HDA_PPCTL_PIE BIT(31)
#define SOF_HDA_PPCTL_GPROCEN BIT(30)
+/*Vendor Specific Registers*/
+#define SOF_HDA_VS_D0I3C 0x104A
+
+/* D0I3C Register fields */
+#define SOF_HDA_VS_D0I3C_CIP BIT(0) /* Command-In-Progress */
+#define SOF_HDA_VS_D0I3C_I3 BIT(2) /* D0i3 enable bit */
+
/* DPIB entry size: 8 Bytes = 2 DWords */
#define SOF_HDA_DPIB_ENTRY_SIZE 0x8
void hda_dsp_ipc_int_enable(struct snd_sof_dev *sdev);
void hda_dsp_ipc_int_disable(struct snd_sof_dev *sdev);
+int hda_dsp_set_power_state(struct snd_sof_dev *sdev,
+ enum sof_d0_substate d0_substate);
+
int hda_dsp_suspend(struct snd_sof_dev *sdev);
int hda_dsp_resume(struct snd_sof_dev *sdev);
int hda_dsp_runtime_suspend(struct snd_sof_dev *sdev);