linux-kernel - [PATCH 4/8] ASoC: SOF: amd: fix for acp init sequence

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Message-ID: <20240807051341.1616925-4-Vijendar.Mukunda@amd.com>
Date: Wed, 7 Aug 2024 10:43:16 +0530
From: Vijendar Mukunda <Vijendar.Mukunda@....com>
To: <broonie@...nel.org>
CC: <alsa-devel@...a-project.org>, <Basavaraj.Hiregoudar@....com>,
	<Sunil-kumar.Dommati@....com>, <venkataprasad.potturu@....com>, "Vijendar
 Mukunda" <Vijendar.Mukunda@....com>, Ranjani Sridharan
	<ranjani.sridharan@...ux.intel.com>, Pierre-Louis Bossart
	<pierre-louis.bossart@...ux.intel.com>, Liam Girdwood <lgirdwood@...il.com>,
	Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>, Bard Liao
	<yung-chuan.liao@...ux.intel.com>, Daniel Baluta <daniel.baluta@....com>,
	"Kai Vehmanen" <kai.vehmanen@...ux.intel.com>, Jaroslav Kysela
	<perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, Cristian Ciocaltea
	<cristian.ciocaltea@...labora.com>, Emil Velikov
	<emil.velikov@...labora.com>, Krzysztof Kozlowski <krzk@...nel.org>, "Ajit
 Kumar Pandey" <AjitKumar.Pandey@....com>, "moderated list:SOUND - SOUND OPEN
 FIRMWARE (SOF) DRIVERS" <sound-open-firmware@...a-project.org>, "open
 list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEM..."
	<linux-sound@...r.kernel.org>, open list <linux-kernel@...r.kernel.org>
Subject: [PATCH 4/8] ASoC: SOF: amd: fix for acp init sequence

When ACP is not powered on by default, acp power on sequence explicitly
invoked by programming pgfsm control mask. Update ACP pgfsm control mask
and status mask based on ACP variant.

Fixes: 846aef1d7cc0 ("ASoC: SOF: amd: Add Renoir ACP HW support")
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@....com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
---
 sound/soc/sof/amd/acp.c | 21 +++++++++++++++++++--
 sound/soc/sof/amd/acp.h |  7 +++++--
 2 files changed, 24 insertions(+), 4 deletions(-)

diff --git a/sound/soc/sof/amd/acp.c b/sound/soc/sof/amd/acp.c
index d0ba641ba28c..a9f32983b3af 100644
--- a/sound/soc/sof/amd/acp.c
+++ b/sound/soc/sof/amd/acp.c
@@ -430,8 +430,10 @@ static irqreturn_t acp_irq_handler(int irq, void *dev_id)
 static int acp_power_on(struct snd_sof_dev *sdev)
 {
 	const struct sof_amd_acp_desc *desc = get_chip_info(sdev->pdata);
+	struct acp_dev_data *adata = sdev->pdata->hw_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);
@@ -439,9 +441,24 @@ static int acp_power_on(struct snd_sof_dev *sdev)
 	if (val == ACP_POWERED_ON)
 		return 0;
 
-	if (val & ACP_PGFSM_STATUS_MASK)
+	switch (adata->pci_rev) {
+	case ACP_RN_PCI_ID:
+	case ACP_VANGOGH_PCI_ID:
+		acp_pgfsm_status_mask = ACP3X_PGFSM_STATUS_MASK;
+		acp_pgfsm_cntl_mask = ACP3X_PGFSM_CNTL_POWER_ON_MASK;
+		break;
+	case ACP_RMB_PCI_ID:
+	case ACP63_PCI_ID:
+		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 f6f0fcfeb691..321c40cc6d50 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
-- 
2.34.1