Patch "ASoC: SOF: amd: Fix for acp init sequence" has been added to the 6.6-stable tree

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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




[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux