This is a note to let you know that I've just added the patch titled
ASoC: SOF: amd: Fix for acp init sequence
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
asoc-sof-amd-fix-for-acp-init-sequence.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 1ec6954cc6114f61f752995a39b1343df7a6cdd0
Author: Vijendar Mukunda <Vijendar.Mukunda@xxxxxxx>
Date: Fri Aug 16 12:33:28 2024 +0530
ASoC: SOF: amd: Fix for acp init sequence
[ Upstream commit a42db293e5983aa1508d12644f23d73f0553b32c ]
When ACP is not powered on by default, acp power on sequence explicitly
invoked by programming pgfsm control mask. The existing implementation
checks the same PGFSM status mask and programs the same PGFSM control mask
in all ACP variants which breaks acp power on sequence for ACP6.0 and
ACP6.3 variants. So to fix this issue, update ACP pgfsm control mask and
status mask based on acp descriptor rev field, which will vary based on
acp variant.
Fixes: 846aef1d7cc0 ("ASoC: SOF: amd: Add Renoir ACP HW support")
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@xxxxxxx>
Link: https://patch.msgid.link/20240816070328.610360-1-Vijendar.Mukunda@xxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/sound/soc/sof/amd/acp.c b/sound/soc/sof/amd/acp.c
index add386f749ae9..bfed848de77c8 100644
--- a/sound/soc/sof/amd/acp.c
+++ b/sound/soc/sof/amd/acp.c
@@ -380,6 +380,7 @@ static int acp_power_on(struct snd_sof_dev *sdev)
const struct sof_amd_acp_desc *desc = get_chip_info(sdev->pdata);
unsigned int base = desc->pgfsm_base;
unsigned int val;
+ unsigned int acp_pgfsm_status_mask, acp_pgfsm_cntl_mask;
int ret;
val = snd_sof_dsp_read(sdev, ACP_DSP_BAR, base + PGFSM_STATUS_OFFSET);
@@ -387,9 +388,23 @@ static int acp_power_on(struct snd_sof_dev *sdev)
if (val == ACP_POWERED_ON)
return 0;
- if (val & ACP_PGFSM_STATUS_MASK)
+ switch (desc->rev) {
+ case 3:
+ case 5:
+ acp_pgfsm_status_mask = ACP3X_PGFSM_STATUS_MASK;
+ acp_pgfsm_cntl_mask = ACP3X_PGFSM_CNTL_POWER_ON_MASK;
+ break;
+ case 6:
+ acp_pgfsm_status_mask = ACP6X_PGFSM_STATUS_MASK;
+ acp_pgfsm_cntl_mask = ACP6X_PGFSM_CNTL_POWER_ON_MASK;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (val & acp_pgfsm_status_mask)
snd_sof_dsp_write(sdev, ACP_DSP_BAR, base + PGFSM_CONTROL_OFFSET,
- ACP_PGFSM_CNTL_POWER_ON_MASK);
+ acp_pgfsm_cntl_mask);
ret = snd_sof_dsp_read_poll_timeout(sdev, ACP_DSP_BAR, base + PGFSM_STATUS_OFFSET, val,
!val, ACP_REG_POLL_INTERVAL, ACP_REG_POLL_TIMEOUT_US);
diff --git a/sound/soc/sof/amd/acp.h b/sound/soc/sof/amd/acp.h
index 4dcceb7647694..133abed74f015 100644
--- a/sound/soc/sof/amd/acp.h
+++ b/sound/soc/sof/amd/acp.h
@@ -25,8 +25,11 @@
#define ACP_REG_POLL_TIMEOUT_US 2000
#define ACP_DMA_COMPLETE_TIMEOUT_US 5000
-#define ACP_PGFSM_CNTL_POWER_ON_MASK 0x01
-#define ACP_PGFSM_STATUS_MASK 0x03
+#define ACP3X_PGFSM_CNTL_POWER_ON_MASK 0x01
+#define ACP3X_PGFSM_STATUS_MASK 0x03
+#define ACP6X_PGFSM_CNTL_POWER_ON_MASK 0x07
+#define ACP6X_PGFSM_STATUS_MASK 0x0F
+
#define ACP_POWERED_ON 0x00
#define ACP_ASSERT_RESET 0x01
#define ACP_RELEASE_RESET 0x00
