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Message-ID: <0f787ba2-8d44-492d-ae72-0bb74999223c@amd.com>
Date: Wed, 3 Dec 2025 08:53:14 +0530
From: "Mukunda,Vijendar" <vijendar.mukunda@....com>
To: "Mario Limonciello (AMD) (kernel.org)" <superm1@...nel.org>,
Raghavendra Prasad Mallela <raghavendraprasad.mallela@....com>,
broonie@...nel.org, alsa-devel@...a-project.org
Cc: Basavaraj.Hiregoudar@....com, Sunil-kumar.Dommati@....com,
Hemalatha Pinnamreddy <hemalatha.pinnamreddy2@....com>,
Liam Girdwood <lgirdwood@...il.com>, Jaroslav Kysela <perex@...ex.cz>,
Takashi Iwai <tiwai@...e.com>,
Venkata Prasad Potturu <venkataprasad.potturu@....com>,
Peter Zijlstra <peterz@...radead.org>,
"open list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEM..."
<linux-sound@...r.kernel.org>, open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1] ASoC: amd: acp: Audio is not resuming after s0ix
On 03/12/25 03:38, Mario Limonciello (AMD) (kernel.org) wrote:
>
>
> On 12/2/2025 11:56 AM, Raghavendra Prasad Mallela wrote:
>> From: Hemalatha Pinnamreddy <hemalatha.pinnamreddy2@....com>
>>
>> Audio fails to resume after system exits suspend mode
>> due to accessing incorrect ring buffer address during
>> resume. This patch resolves issue by selecting correct
>> address based on the ACP version.
Add fixes commit
>>
>> Signed-off-by: Hemalatha Pinnamreddy <hemalatha.pinnamreddy2@....com>
>> Signed-off-by: Raghavendra Prasad Mallela <raghavendraprasad.mallela@....com>
>
> Reviewed-by: Mario Limonciello (AMD) <superm1@...nel.org>
> One nit below.
>
>> ---
>> sound/soc/amd/acp/acp-legacy-common.c | 32 +++++++++++++++++++++------
>> 1 file changed, 25 insertions(+), 7 deletions(-)
>>
>> diff --git a/sound/soc/amd/acp/acp-legacy-common.c
>> b/sound/soc/amd/acp/acp-legacy-common.c
>> index 3078f459e005..da80c761d657 100644
>> --- a/sound/soc/amd/acp/acp-legacy-common.c
>> +++ b/sound/soc/amd/acp/acp-legacy-common.c
>> @@ -208,7 +208,7 @@ static int set_acp_i2s_dma_fifo(struct snd_pcm_substream
>> *substream,
>> struct acp_resource *rsrc = chip->rsrc;
>> struct acp_stream *stream = substream->runtime->private_data;
>> u32 reg_dma_size, reg_fifo_size, reg_fifo_addr;
>> - u32 phy_addr, acp_fifo_addr, ext_int_ctrl;
>> + u32 phy_addr = 0, acp_fifo_addr, ext_int_ctrl;
>
> Why initialize this variable now?
>
>> unsigned int dir = substream->stream;
>> switch (dai->driver->id) {
>> @@ -219,7 +219,10 @@ static int set_acp_i2s_dma_fifo(struct snd_pcm_substream
>> *substream,
>> SP_PB_FIFO_ADDR_OFFSET;
>> reg_fifo_addr = ACP_I2S_TX_FIFOADDR(chip);
>> reg_fifo_size = ACP_I2S_TX_FIFOSIZE(chip);
>> - phy_addr = I2S_SP_TX_MEM_WINDOW_START + stream->reg_offset;
>> + if (chip->acp_rev >= ACP70_PCI_ID)
>> + phy_addr = ACP7x_I2S_SP_TX_MEM_WINDOW_START;
>> + else
>> + phy_addr = I2S_SP_TX_MEM_WINDOW_START + stream->reg_offset;
>> writel(phy_addr, chip->base + ACP_I2S_TX_RINGBUFADDR(chip));
>> } else {
>> reg_dma_size = ACP_I2S_RX_DMA_SIZE(chip);
>> @@ -227,7 +230,10 @@ static int set_acp_i2s_dma_fifo(struct snd_pcm_substream
>> *substream,
>> SP_CAPT_FIFO_ADDR_OFFSET;
>> reg_fifo_addr = ACP_I2S_RX_FIFOADDR(chip);
>> reg_fifo_size = ACP_I2S_RX_FIFOSIZE(chip);
>> - phy_addr = I2S_SP_RX_MEM_WINDOW_START + stream->reg_offset;
>> + if (chip->acp_rev >= ACP70_PCI_ID)
>> + phy_addr = ACP7x_I2S_SP_RX_MEM_WINDOW_START;
>> + else
>> + phy_addr = I2S_SP_RX_MEM_WINDOW_START + stream->reg_offset;
>> writel(phy_addr, chip->base + ACP_I2S_RX_RINGBUFADDR(chip));
>> }
>> break;
>> @@ -238,7 +244,10 @@ static int set_acp_i2s_dma_fifo(struct snd_pcm_substream
>> *substream,
>> BT_PB_FIFO_ADDR_OFFSET;
>> reg_fifo_addr = ACP_BT_TX_FIFOADDR(chip);
>> reg_fifo_size = ACP_BT_TX_FIFOSIZE(chip);
>> - phy_addr = I2S_BT_TX_MEM_WINDOW_START + stream->reg_offset;
>> + if (chip->acp_rev >= ACP70_PCI_ID)
>> + phy_addr = ACP7x_I2S_BT_TX_MEM_WINDOW_START;
>> + else
>> + phy_addr = I2S_BT_TX_MEM_WINDOW_START + stream->reg_offset;
>> writel(phy_addr, chip->base + ACP_BT_TX_RINGBUFADDR(chip));
>> } else {
>> reg_dma_size = ACP_BT_RX_DMA_SIZE(chip);
>> @@ -246,7 +255,10 @@ static int set_acp_i2s_dma_fifo(struct snd_pcm_substream
>> *substream,
>> BT_CAPT_FIFO_ADDR_OFFSET;
>> reg_fifo_addr = ACP_BT_RX_FIFOADDR(chip);
>> reg_fifo_size = ACP_BT_RX_FIFOSIZE(chip);
>> - phy_addr = I2S_BT_TX_MEM_WINDOW_START + stream->reg_offset;
>> + if (chip->acp_rev >= ACP70_PCI_ID)
>> + phy_addr = ACP7x_I2S_BT_RX_MEM_WINDOW_START;
>> + else
>> + phy_addr = I2S_BT_RX_MEM_WINDOW_START + stream->reg_offset;
>> writel(phy_addr, chip->base + ACP_BT_RX_RINGBUFADDR(chip));
>> }
>> break;
>> @@ -257,7 +269,10 @@ static int set_acp_i2s_dma_fifo(struct snd_pcm_substream
>> *substream,
>> HS_PB_FIFO_ADDR_OFFSET;
>> reg_fifo_addr = ACP_HS_TX_FIFOADDR;
>> reg_fifo_size = ACP_HS_TX_FIFOSIZE;
>> - phy_addr = I2S_HS_TX_MEM_WINDOW_START + stream->reg_offset;
>> + if (chip->acp_rev >= ACP70_PCI_ID)
>> + phy_addr = ACP7x_I2S_HS_TX_MEM_WINDOW_START;
>> + else
>> + phy_addr = I2S_HS_TX_MEM_WINDOW_START + stream->reg_offset;
>> writel(phy_addr, chip->base + ACP_HS_TX_RINGBUFADDR);
>> } else {
>> reg_dma_size = ACP_HS_RX_DMA_SIZE;
>> @@ -265,7 +280,10 @@ static int set_acp_i2s_dma_fifo(struct snd_pcm_substream
>> *substream,
>> HS_CAPT_FIFO_ADDR_OFFSET;
>> reg_fifo_addr = ACP_HS_RX_FIFOADDR;
>> reg_fifo_size = ACP_HS_RX_FIFOSIZE;
>> - phy_addr = I2S_HS_RX_MEM_WINDOW_START + stream->reg_offset;
>> + if (chip->acp_rev >= ACP70_PCI_ID)
>> + phy_addr = ACP7x_I2S_HS_RX_MEM_WINDOW_START;
>> + else
>> + phy_addr = I2S_HS_RX_MEM_WINDOW_START + stream->reg_offset;
>> writel(phy_addr, chip->base + ACP_HS_RX_RINGBUFADDR);
>> }
>> break;
>
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