linux-kernel - [PATCH 1/7] ASoC: SOF: amd: remove unused sha dma interrupt code

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Date:   Wed, 23 Aug 2023 13:03:33 +0530
From:   Vijendar Mukunda <Vijendar.Mukunda@....com>
To:     <broonie@...nel.org>
CC:     <alsa-devel@...a-project.org>, <Basavaraj.Hiregoudar@....com>,
        <Sunil-kumar.Dommati@....com>,
        Vijendar Mukunda <Vijendar.Mukunda@....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>,
        Daniel Baluta <daniel.baluta@....com>,
        Kai Vehmanen <kai.vehmanen@...ux.intel.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        V sujith kumar Reddy <Vsujithkumar.Reddy@....com>,
        Venkata Prasad Potturu <venkataprasad.potturu@....com>,
        Mastan Katragadda <Mastan.Katragadda@....com>,
        Ajit Kumar Pandey <AjitKumar.Pandey@....com>,
        "moderated list:SOUND - SOUND OPEN FIRMWARE (SOF) DRIVERS" 
        <sound-open-firmware@...a-project.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/7] ASoC: SOF: amd: remove unused sha dma interrupt code

During initial development time for RN platform, when SHA
dma gets completed, SHA DMA engine used to raise the ACP interrupt.
In ACP interrupt handler, SHA DMA interrupt got handled.
Currently SHA DMA compleition is verified by checking
transfer count using read poll time out logic.
Remove unused SHA dma interrupt handling code.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@....com>
---
 sound/soc/sof/amd/acp.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/sound/soc/sof/amd/acp.c b/sound/soc/sof/amd/acp.c
index b2e00a10a03e..630c2c5fe4c7 100644
--- a/sound/soc/sof/amd/acp.c
+++ b/sound/soc/sof/amd/acp.c
@@ -337,14 +337,7 @@ static irqreturn_t acp_irq_thread(int irq, void *context)
 {
 	struct snd_sof_dev *sdev = context;
 	const struct sof_amd_acp_desc *desc = get_chip_info(sdev->pdata);
-	unsigned int val, count = ACP_HW_SEM_RETRY_COUNT;
-
-	val = snd_sof_dsp_read(sdev, ACP_DSP_BAR, desc->ext_intr_stat);
-	if (val & ACP_SHA_STAT) {
-		/* Clear SHA interrupt raised by PSP */
-		snd_sof_dsp_write(sdev, ACP_DSP_BAR, desc->ext_intr_stat, val);
-		return IRQ_HANDLED;
-	}
+	unsigned int count = ACP_HW_SEM_RETRY_COUNT;
 
 	while (snd_sof_dsp_read(sdev, ACP_DSP_BAR, desc->hw_semaphore_offset)) {
 		/* Wait until acquired HW Semaphore lock or timeout */
-- 
2.34.1