linux-kernel - [PATCH 1/2] ASoC: SOF: amd: Use poll function instead to read ACP_SHA_DSP_FW

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Date:   Mon, 5 Dec 2022 17:36:48 +0530
From:   V sujith kumar Reddy <Vsujithkumar.Reddy@....com>
To:     <broonie@...nel.org>, <alsa-devel@...a-project.org>
CC:     <Vijendar.Mukunda@....com>, <Basavaraj.Hiregoudar@....com>,
        <Sunil-kumar.Dommati@....com>, <venkataprasad.potturu@....com>,
        <ssabakar@....com>,
        Ajye Huang <ajye_huang@...pal.corp-partner.google.com>,
        V sujith kumar Reddy <Vsujithkumar.Reddy@....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>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        Kai Vehmanen <kai.vehmanen@...ux.intel.com>,
        Daniel Baluta <daniel.baluta@....com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        "Ajit Kumar Pandey" <AjitKumar.Pandey@....com>,
        Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>,
        "moderated list:SOUND - SOUND OPEN FIRMWARE (SOF) DRIVERS" 
        <sound-open-firmware@...a-project.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/2] ASoC: SOF: amd: Use poll function instead to read ACP_SHA_DSP_FW_QUALIFIER

From: Ajye Huang <ajye_huang@...pal.corp-partner.google.com>

The Skyrim project and Whiterun met error when DSP
loading during device boot.
Ex, error in kernel log,
ERR kernel: [   16.124537] snd_sof_amd_rembrandt
0000:04:00.5: PSP validation failed.

Use the snd_sof_dsp_read_poll_timeout function to successfully
read the FW_QUALIFIER register

Signed-off-by: Ajye Huang <ajye_huang@...pal.corp-partner.google.com>
Signed-off-by: V sujith kumar Reddy <Vsujithkumar.Reddy@....com>
---
 sound/soc/sof/amd/acp.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/sound/soc/sof/amd/acp.c b/sound/soc/sof/amd/acp.c
index 47115a77c92c..6bd2888fbb66 100644
--- a/sound/soc/sof/amd/acp.c
+++ b/sound/soc/sof/amd/acp.c
@@ -255,10 +255,12 @@ int configure_and_run_sha_dma(struct acp_dev_data *adata, void *image_addr,
 	if (ret)
 		return ret;
 
-	fw_qualifier = snd_sof_dsp_read(sdev, ACP_DSP_BAR, ACP_SHA_DSP_FW_QUALIFIER);
-	if (!(fw_qualifier & DSP_FW_RUN_ENABLE)) {
+	ret = snd_sof_dsp_read_poll_timeout(sdev, ACP_DSP_BAR, ACP_SHA_DSP_FW_QUALIFIER,
+					    fw_qualifier, fw_qualifier & DSP_FW_RUN_ENABLE,
+					    ACP_REG_POLL_INTERVAL, ACP_DMA_COMPLETE_TIMEOUT_US);
+	if (ret < 0) {
 		dev_err(sdev->dev, "PSP validation failed\n");
-		return -EINVAL;
+		return ret;
 	}
 
 	return 0;
-- 
2.25.1