[PATCH 2/4] ASoC: SOF: Intel: hda: modify core_power_up/down op

[Kai Vehmanen]

From: Ranjani Sridharan <ranjani.sridharan at linux.intel.com>

Modify the core_power_up/down ops for HDA platforms to restrict
the core_mask to the ones allowed by chip->cores_mask. This is needed
because on some HDA platforms not all cores can be powered up/down
by the host and this must be handled internally in the FW.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan at linux.intel.com>
Reviewed-by: Rander Wang <rander.wang at linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski at linux.intel.com>
Reviewed-by: Keyon Jie <yang.jie at linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen at linux.intel.com>
---
 sound/soc/sof/intel/hda-dsp.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/sound/soc/sof/intel/hda-dsp.c b/sound/soc/sof/intel/hda-dsp.c
index 18d726669c6f..18ff1c2f5376 100644
--- a/sound/soc/sof/intel/hda-dsp.c
+++ b/sound/soc/sof/intel/hda-dsp.c
@@ -239,10 +239,15 @@ bool hda_dsp_core_is_enabled(struct snd_sof_dev *sdev,
 
 int hda_dsp_enable_core(struct snd_sof_dev *sdev, unsigned int core_mask)
 {
+	struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
+	const struct sof_intel_dsp_desc *chip = hda->desc;
 	int ret;
 
-	/* return if core is already enabled */
-	if (hda_dsp_core_is_enabled(sdev, core_mask))
+	/* restrict core_mask to host managed cores mask */
+	core_mask &= chip->host_managed_cores_mask;
+
+	/* return if core_mask is not valid or cores are already enabled */
+	if (!core_mask || hda_dsp_core_is_enabled(sdev, core_mask))
 		return 0;
 
 	/* power up */
@@ -259,8 +264,17 @@ int hda_dsp_enable_core(struct snd_sof_dev *sdev, unsigned int core_mask)
 int hda_dsp_core_reset_power_down(struct snd_sof_dev *sdev,
 				  unsigned int core_mask)
 {
+	struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
+	const struct sof_intel_dsp_desc *chip = hda->desc;
 	int ret;
 
+	/* restrict core_mask to host managed cores mask */
+	core_mask &= chip->host_managed_cores_mask;
+
+	/* return if core_mask is not valid */
+	if (!core_mask)
+		return 0;
+
 	/* place core in reset prior to power down */
 	ret = hda_dsp_core_stall_reset(sdev, core_mask);
 	if (ret < 0) {
-- 
2.27.0